Research & sources

We only show numbers we can back up. Each one below links to the original source, says what kind of evidence it is, and notes its limits. If you spot a mistake, tell us and we'll fix it.

1. Study · 2020

   Researchers estimate the average person moves between about 6,200 thoughts a day. That's far fewer than the '60,000' or 'lakhs' you often see quoted online.

   Tseng, J. & Poppenk, J. (2020). Brain meta-state transitions demarcate thoughts across task contexts exposing the mental noise of trait neuroticism. Nature Communications, 11, 3480.

   Limits: An estimate from brain scans of when one thought ends and the next begins (the 6,200/day figure is from Queen's University's summary of the study).

   Used for: Why a brain-dump helpsRead the source

2. Survey · 2010

   About 1 in 5 adults describe themselves as chronic procrastinators.

   Ferrari, J. R., as summarised by the American Psychological Association (2010); first reported in Ferrari (1991) and replicated across several countries.

   Limits: Self-reported, not a clinical diagnosis.

   Used for: You are not aloneRead the source

3. Meta-analysis · 2007

   Procrastination is strongest when a task feels unpleasant and its reward feels far away. That's why making the reward feel closer helps.

   Steel, P. (2007). The nature of procrastination: A meta-analytic and theoretical review of quintessential self-regulatory failure. Psychological Bulletin, 133(1), 65-94.

   Used for: How we score prioritiesRead the source

4. Review · 2013

   We often delay just to feel better right now. Procrastination is short-term mood repair, and your future self pays for it.

   Sirois, F. & Pychyl, T. (2013). Procrastination and the priority of short-term mood regulation: Consequences for future self. Social and Personality Psychology Compass, 7(2), 115-127.

   Used for: Tiny first steps instead of big tasksRead the source

5. Meta-analysis · 2006

   Writing a simple 'When ___, I will ___' plan makes people noticeably more likely to follow through (a medium-to-large effect across 94 studies).

   Gollwitzer, P. M. & Sheeran, P. (2006). Implementation intentions and goal achievement: A meta-analysis of effects and processes. Advances in Experimental Social Psychology, 38, 69-119.

   Used for: Every suggestion comes with a 'When ___, I will ___' stepRead the source

6. Study · 2010

   A new daily habit took a median of 66 days to feel automatic. Some people got there in 18 days, others took 254, depending on the person and the habit.

   Lally, P., van Jaarsveld, C., Potts, H. & Wardle, J. (2010). How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology, 40(6), 998-1009.

   Limits: 96 participants; missing a single day did not derail habit formation.

   Used for: Habit projections and streaksRead the source

7. Review · 1995

   In the short run people regret what they did; over the long run they regret what they didn't do.

   Gilovich, T. & Medvec, V. H. (1995). The experience of regret: What, when, and why. Psychological Review, 102(2), 379-395.

   Limits: Debated by Kahneman (1995); a 1998 follow-up found some regrets of inaction are wistful rather than painful.

   Used for: The cost of waitingRead the source

8. Book · 2022

   Across tens of thousands of submitted regrets, four kinds keep coming up: foundation (not building basics like savings or health), boldness (not taking the chance), moral, and connection (letting relationships drift).

   Pink, D. H. (2022). The Power of Regret: How Looking Backward Moves Us Forward. Riverhead. Based on the World Regret Survey.

   Limits: The survey is self-selected (people chose to submit), so it shows patterns, not rates.

   Used for: Life areas and the regret quizRead the source

9. Meta-analysis · 2015

   Messages that show a real risk do change behaviour, and they work better when they also show a clear, doable action.

   Tannenbaum, M. B. et al. (2015). Appealing to fear: A meta-analysis of fear appeal effectiveness and theories. Psychological Bulletin, 141(6), 1178-1204.

   Limits: 127 articles, 27,372 participants; the average effect is small-to-moderate (d ≈ 0.29).

   Used for: Every cost we show comes with a 5-minute stepRead the source

10. Study · 1992

    Losing ₹1,000 feels roughly twice as bad as gaining ₹1,000 feels good.

    Tversky, A. & Kahneman, D. (1992). Advances in prospect theory: Cumulative representation of uncertainty. Journal of Risk and Uncertainty, 5, 297-323.

    Used for: Showing delay as money lost, not money missedRead the source

11. Study · 2011

    Unfinished goals keep popping into your head. Making a specific plan for them quiets those thoughts.

    Masicampo, E. J. & Baumeister, R. F. (2011). Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology, 101(4), 667-683.

    Used for: Why a brain-dump plus a plan brings peaceRead the source

12. Study · 2011

    People who saw an aged image of their future self chose to save more for retirement.

    Hershfield, H. E. et al. (2011). Increasing saving behavior through age-progressed renderings of the future self. Journal of Marketing Research, 48(SPL), S23-S37.

    Used for: The 'alternate you' storyRead the source

13. Study · 2014

    Fresh starts like a Monday, a birthday or the 1st of the month make people more likely to start goals.

    Dai, H., Milkman, K. L. & Riis, J. (2014). The fresh start effect: Temporal landmarks motivate aspirational behavior. Management Science, 60(10), 2563-2582.

    Used for: When we send nudgesRead the source

14. Survey · 2015

    Only about 1 in 4 Indian adults (24%) answered basic money questions correctly in a global survey.

    Klapper, L., Lusardi, A. & van Oudheusden, P. (2015). Financial Literacy Around the World: Insights from the S&P Global FinLit Survey.

    Limits: Fieldwork in 2014; India's NCFE surveys use a different method.

    Used for: Why we explain every calculationRead the source

15. Official data · 2025

    Indian households' net financial savings fell to a multi-decade low in 2022-23 before recovering to about 7% of national disposable income in 2024-25.

    Reserve Bank of India, Annual Report 2024-25, as reported by Business Standard.

    Limits: Figures are revised over time and some sources use GDP instead of GNDI.

    Used for: Money content on the websiteRead the source

16. Official data · 2023

    Average life expectancy at birth in India was about 72 years in 2023.

    World Bank, Life expectancy at birth, total (SP.DYN.LE00.IN); UN World Population Prospects 2024.

    Limits: It's an average at birth, not a prediction for any one person.

    Used for: Life-in-weeks default (you can change it)Read the source

17. Official data · 2024

    Our savings maths uses the standard SIP formula with money invested at the start of each month.

    SEBI investor website, SIP calculator (AMFI convention).

    Limits: Returns are assumptions you can change, not promises. This is not investment advice.

    Used for: Cost-of-Delay calculatorRead the source

18. Official data · 2025

    India's Nifty 50 index, with dividends, grew about 12.5% a year since 1999. But any 10-year stretch could land anywhere from about 6% to 23% a year.

    Bajaj Finserv AMC, Nifty 50 historical returns; Basunivesh, Equity investment: dream vs reality (rolling returns study).

    Limits: Past growth doesn't promise future growth. We stay below the long-run average on purpose, and you can change every rate.

    Used for: The low, middle and high growth paths (8%, 11% and 13% by default)Read the source

19. Official data · 2025

    Gains on equity funds held over a year are taxed at 12.5%, and the first ₹1.25 lakh of gains in a year is tax-free.

    Finance (No. 2) Act 2024, as explained by Stable Money for 2025-26.

    Limits: We take the tax once at the end, which is a little harsher than selling bit by bit. Other plans, like deposits, are taxed differently.

    Used for: Tax in the saving plan mathsRead the source

20. Survey · 2026

    Prices in India are expected to rise about 5% a year on average in 2026-27.

    SBI Research note on CPI inflation for FY27, as reported by The Tribune.

    Limits: A bank's forecast for one year. Over 20 years, inflation could be higher or lower.

    Used for: Turning future rupees into today's moneyRead the source

21. Official data · 2026

    Many Indian credit cards charge about 3.75% a month on unpaid balances, which is 45% a year.

    ICICI Bank, Credit card interest rates.

    Limits: Your own card's rate is on your statement. Some cards charge less.

    Used for: Card balance cost per dayRead the source

22. Official data · 2025

    Card terms add 18% GST on top of interest, and set the minimum due as a small share of what you owe.

    Indian Bank, One Credit Card Most Important Terms and Conditions, December 2025.

    Limits: Minimum due rules differ by bank. We use 5% with a ₹200 floor, and you can change it.

    Used for: GST and minimum due in the card mathsRead the source

23. Survey · 2026

    Indian companies expect to raise pay by about 9.1% on average in 2026.

    Aon, Salary Increase and Turnover Survey India 2025-26, as reported by The Tribune.

    Limits: An average across companies. Your own yearly raise may be very different.

    Used for: How the gap from a raise grows each yearRead the source

24. Survey · 2026

    About 7 in 10 Indian professionals said they'd want a raise of 21% or more to switch jobs.

    foundit Appraisal Survey 2026, as reported by Outlook Money.

    Limits: It's what people say they want, not what they got. Use the raise you really expect.

    Used for: The default raise in the job switch mathsRead the source

25. Book · 2018

    Your real hourly pay is what you take home minus what work costs you, divided by all the hours work takes, travel included. It's usually far lower than you think.

    Robin, V. & Dominguez, J. Your Money or Your Life (revised 2018), as discussed on The White Coat Investor.

    Used for: Hours of work a spend usesRead the source

26. Book · 2015

    Counting the days you have left with someone, instead of the years, shows how much of that time may already be behind you.

    Urban, T. (2015). The Tail End. Wait But Why.

    Limits: An idea, not data. The numbers come from your answers and the averages below.

    Used for: Days left with parents, holidays left with childrenRead the source

27. Official data · 2020

    In India, a person who reaches 60 lives about 17.8 more years on average.

    World Health Organization, Life expectancy at age 60 (WHO.LIFE_EXP_60), India, 2020.

    Limits: A group average, never a prediction for one person. The 2021 figure dipped to about 15.6 during COVID, so we use 2020.

    Used for: Rough years left with parents (you can change it)Read the source

28. Official data · 2024

    In India, a person who reaches 80 lives about 7.6 more years on average.

    UN World Population Prospects 2024, via Measured World, life expectancy at age 80, India, 2024.

    Limits: A group average from a secondary site. Between 60 and 80 we draw a straight line.

    Used for: Rough years left with parents over 60 (you can change it)Read the source

29. Official data · 2024

    Adults should get at least 150 minutes of moderate activity a week. People who aren't active enough have a 20% to 30% higher risk of death.

    World Health Organization, Physical activity fact sheet; WHO guidelines on physical activity (2020).

    Used for: The exercise aim and why it mattersRead the source

30. Official data · 2026

    Canada's Express Entry gives the most age points from 20 to 29. They drop each year from 30 and reach zero at 45.

    Immigration, Refugees and Citizenship Canada, Comprehensive Ranking System (CRS) criteria.

    Limits: Age is one part of the score. Rules change, so check the official page.

    Used for: Canada age pointsRead the source

31. Official data · 2026

    Australia's skilled visas give the most age points from 25 to 32, fewer from 33, and you can't be invited from 45.

    Department of Home Affairs, Points table for skilled independent visas (subclass 189).

    Limits: A new points test is planned for July 2027. Check the official page.

    Used for: Australia age pointsRead the source

32. Official data · 2026

    Germany's Opportunity Card needs 6 points. Age gives 2 points up to 35 and 1 point from 36 to 40.

    Federal Foreign Office, Opportunity Card (Chancenkarte); Residence Act, section 20b.

    Limits: Check the embassy page for your country before you apply.

    Used for: Germany age pointsRead the source

33. Official data · 2026

    Australia offers up to 1,000 Work and Holiday visas a year to Indian citizens aged 18 to 30, picked by a yearly ballot.

    Department of Home Affairs, Work and Holiday Maker program, latest news (2026-27 ballot).

    Limits: The 2026-27 registration ran from 4 to 25 June 2026. Dates change each year.

    Used for: Working holiday ballots leftRead the source

34. Official data · 2026

    For UPSC Civil Services you must be 21 to 31 (General), up to 34 (OBC) or up to 36 (SC/ST). General gets 6 attempts, OBC 9, SC/ST no limit.

    Union Public Service Commission, Civil Services Examination notice 2026, as summarised by Vision IAS.

    Limits: Age is counted on 1 August of the exam year. Other groups, like PwBD, have other limits.

    Used for: UPSC sittings leftRead the source

35. Official data · 2026

    IBPS PO is for ages 20 to 30 and SBI PO for 21 to 30, with 3 more years for OBC and 5 for SC/ST. SBI PO allows 4 attempts for General and 7 for OBC.

    IBPS and SBI recruitment notices, as summarised by Mahendras.

    Limits: Check each year's official notice. Limits and cut-off dates can change.

    Used for: Bank PO sittings leftRead the source

36. Review · 2005

    People tend to expect bad feelings to be stronger and to last longer than they really do. So the fear of starting is often bigger than what starting feels like.

    Wilson, T. D. & Gilbert, D. T. (2005). Affective forecasting: Knowing what to want. Current Directions in Psychological Science, 14(3), 131-134.

    Limits: Some later studies find the effect is smaller than first reported.

    Used for: What we say when starting feels scaryRead the source

37. Survey · 2025

    Researchers measure how people feel about their lives with a simple 0 to 10 rating. India scored about 4.4 in 2025.

    World Happiness Report 2025, Cantril ladder from the Gallup World Poll (2022 to 2024 average), as reported by Feminism in India.

    Limits: A national average, and a different question from ours. We borrow the method, not the number.

    Used for: Why feelings topics use 0 to 10 ratingsRead the source

38. Official data · 2026

    SSC CGL posts have upper age limits of 27, 30 or 32, depending on the post. OBC gets 3 more years and SC/ST 5 more. There's no limit on attempts.

    Staff Selection Commission, CGL notice, as summarised by Mahendras.

    Limits: Coaching sites don't fully agree on which post has which limit. Check your post in the official notice. Age is usually counted on 1 August.

    Used for: SSC CGL sittings leftRead the source

39. Official data · 2026

    RBI Grade B is for ages 21 to 30 for General, with 3 more years for OBC and 5 for SC/ST. General candidates can sit Phase I up to 6 times.

    Reserve Bank of India, Grade B (DR) General notice, as summarised by PracticeMock.

    Limits: Age is counted on a date in each notice, often 1 April.

    Used for: RBI Grade B sittings leftRead the source

40. Official data · 2025

    NDA is held twice a year. Each notice gives a window of birth dates, which works out to about 16½ to 19½ years old.

    Union Public Service Commission, NDA and NA notices, as summarised by SSBCrack.

    Limits: UPSC gives birth dates, not ages. We worked out the ages from the dates, so check yours against the notice.

    Used for: NDA sittings leftRead the source

41. Official data · 2026

    Each state sets its own age limit and its own extra years by category. For example, Uttar Pradesh's UPPSC allows General candidates up to 40.

    Uttar Pradesh Public Service Commission notice, as summarised by Physics Wallah.

    Limits: Limits differ a lot between states, and sometimes between men and women. Some states skip years. Use your own state's latest notice.

    Used for: State PSC sittings leftRead the source

42. Official data · 2026

    You get two JEE Advanced attempts: in the year you finish Class 12 and the year after. For 2026 you had to be born on or after 1 October 2001, with 5 more years for SC, ST and PwD.

    IIT Roorkee, JEE Advanced 2026 eligibility, as reported by Allen.

    Limits: You also need a top 2,50,000 rank in JEE Main Paper 1. Check jeeadv.ac.in each year.

    Used for: JEE Advanced attempts leftRead the source

43. Official data · 2026

    The UK's India Young Professionals Scheme lets Indian citizens aged 18 to 30 live and work in the UK for up to 2 years. In 2026 it had 3,000 places, given out in random ballots in February and July. If you're picked, you have 90 days to apply.

    UK Visas and Immigration ballot notice, February 2026, as reported by Business Standard.

    Limits: Being picked isn't the visa. You still have to meet the other rules, like a degree and savings. Check GOV.UK.

    Used for: UK ballots leftRead the source

44. Official data · 2025

    India screens everyone aged 30 and over for high blood pressure, diabetes, and mouth, breast and cervical cancer, for free, at government health centres including Ayushman Arogya Mandirs.

    Ministry of Health and Family Welfare, press release on population-based screening for non-communicable diseases (NP-NCD).

    Limits: What each centre offers can differ. Ask at your nearest centre.

    Used for: Free health check-up at 30 and overRead the source

45. Review · 2015

    Adults should sleep 7 or more hours a night, on a regular basis, for good health.

    Watson, N. F. et al. (2015). Recommended amount of sleep for a healthy adult: A joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. Sleep, 38(6), 843-844.

    Limits: For adults 18 to 60. Some people need more.

    Used for: Sleep missedRead the source

46. Survey · 2025

    Indians spent about 5 hours a day on their phones in 2024, about 1.1 trillion hours in all.

    EY and FICCI, Media and Entertainment report, March 2025, as reported by Bloomberg.

    Limits: An average across the country. Your phone's own screen time page is more exact.

    Used for: Screen timeRead the source

47. Review · 2024

    Your body starts to recover within 20 minutes of your last cigarette. After 10 years, your risk of lung cancer is about half that of someone who still smokes.

    American Cancer Society, Benefits of quitting smoking over time.

    Limits: Times are given as ranges. We use the later end of each range, so we never promise too early.

    Used for: What quitting does, and whenRead the source

48. Official data · 2016

    India's free tobacco quitline is 1800-11-2356. Counsellors help you pick a quit date and make a plan.

    Ministry of Health and Family Welfare, National Tobacco Quitline Services (since 2016), as reported by Deccan Chronicle.

    Limits: Open 8 am to 8 pm, six days a week. Closed on Mondays.

    Used for: Quit smoking stepRead the source

49. Meta-analysis · 2019

    Adults read silently at about 238 words a minute on average.

    Brysbaert, M. (2019). How many words do we read per minute? A review and meta-analysis of reading rate. Journal of Memory and Language, 109, 104047.

    Limits: For non-fiction in English. Fiction is a little faster.

    Used for: Books left to readRead the source

50. Book · 2016

    Most novels are about 80,000 to 100,000 words long.

    Klems, B. Novel and short story word counts. Writer's Digest.

    Limits: A publishing rule of thumb, not a count. Change it to suit what you read.

    Used for: Books left to readRead the source

51. Official data · 2026

    CAT has no age limit and no limit on attempts.

    Indian Institutes of Management, CAT eligibility, as summarised by Careers360.

    Limits: You need a bachelor's degree with 50% (45% for SC, ST and PwBD). Check iimcat.ac.in.

    Used for: Exams with no age limitRead the source

52. Official data · 2026

    GATE has no age limit.

    GATE organising IIT, eligibility rules, as summarised by Physics Wallah.

    Limits: Each year's organising IIT publishes the rules. Check its GATE page.

    Used for: Exams with no age limitRead the source

53. Official data · 2022

    In 2022, the National Medical Commission removed the upper age limit for NEET UG, which had been 25 for General.

    Upper age limit for NEET-UG eligibility removed by NMC. The Tribune, 9 March 2022.

    Limits: Check the NTA's NEET UG bulletin for your year.

    Used for: Exams with no age limitRead the source

54. Official data · 2020

    The average founder of the fastest-growing new firms started at 45. Experience in the same industry made success much more likely.

    Azoulay, P., Jones, B. F., Kim, J. D. & Miranda, J. (2020). Age and high-growth entrepreneurship. American Economic Review: Insights, 2(1), 65-82.

    Limits: US data on the top 1 in 1,000 fastest-growing firms. It shows age isn't a barrier, not that waiting helps.

    Used for: Start your startupRead the source

55. Survey · 2003

    People said things they did, like trips, made them happier than things they bought: 57% against 34%.

    Van Boven, L. & Gilovich, T. (2003). To do or to have? That is the question. Journal of Personality and Social Psychology, 85(6), 1193-1202.

    Limits: Later work found the gap is smaller for people with less money, and only covers purchases that went well.

    Used for: The trip you keep putting offRead the source

56. Official data · 2017

    28.6% of adults in India use tobacco, about 26.7 crore people. 21.4% chew it (like gutka or khaini) and 10.7% smoke.

    Ministry of Health and Family Welfare and TISS, Global Adult Tobacco Survey 2, India 2016-17, fact sheet.

    Limits: Some people both chew and smoke, so the two shares add up to more than 28.6%.

    Used for: Quit tobacco: smoking or chewingRead the source

57. Official data · 2024

    Languages close to English, like Spanish or French, take about 600 to 750 class hours to learn well. Japanese or Arabic take about 2,200.

    US Department of State, Foreign Service Institute language difficulty rankings, as summarised by Atlas & Boots.

    Limits: For English speakers in full-time classes. Your own starting point, and the languages you already know, change it a lot.

    Used for: Learn a new languageRead the source

58. Survey · 2025

    For 2025, Indians most wanted to improve their physical health (65%), manage money better (57%), look after their mental health (52%) and spend less time on their phones (43%).

    YouGov, 2025 New Year resolutions survey, 18,000 people in 17 markets, January 2025.

    Limits: An online survey, so it leans towards people who use the internet a lot.

    Used for: What most people start withRead the source

59. Official data · 2024

    58.4% of India's workers work for themselves, 21.7% earn a regular wage or salary, and 19.8% do casual work.

    National Statistics Office, Periodic Labour Force Survey annual report, July 2023 to June 2024, as summarised by People's Archive of Rural India.

    Used for: Pages for people who work for themselves or for othersRead the source

60. Official data · 2024

    About 4.5 crore students are in higher education in India.

    Ministry of Education, AISHE 2023-24, as reported by Deccan Herald.

    Used for: The page for college studentsRead the source

61. Official data · 2025

    About 24.8 crore children were enrolled in school in India in 2023-24.

    Ministry of Education, UDISE+ report 2023-24, as summarised by Drishti IAS.

    Used for: The page for school studentsRead the source

62. Official data · 2025

    Women in India spend about 289 minutes a day on unpaid work at home, against 88 minutes for men.

    Ministry of Statistics and Programme Implementation, Time Use Survey 2024, press release, February 2025.

    Limits: An average for everyone aged 6 and over. It's higher for women aged 15 to 59.

    Used for: The page for people looking after homeRead the source

63. Official data · 2023

    About 14.9 crore people in India were 60 or over in 2022. By 2050 it may be one in five people.

    UNFPA and International Institute for Population Sciences, India Ageing Report 2023, as reported by Scroll.

    Used for: The pages for retired people and people looking after parentsRead the source

64. Official data · 2024

    51% of India's workers put in 49 or more hours a week, the second highest share in the world. The average is about 46.7 hours.

    International Labour Organization data (2024), as reported by Business Standard, September 2024.

    Limits: India's own labour survey (PLFS) finds lower averages, about 42 to 43 hours a week.

    Used for: Hours past your contractRead the source

65. Survey · 2023

    59% of Indian employees reported symptoms of burnout, against 22% across 30 countries.

    McKinsey Health Institute, global employee survey of 30,000 people in 30 countries, 2023, as reported by IANS.

    Limits: Self-reported symptoms, not a diagnosis.

    Used for: Hours past your contract, leave you didn't takeRead the source

66. Official data · 2026

    In Bengaluru, a 10 km trip took about 36 minutes, and rush hour cost commuters about 168 hours in 2025. Pune was the world's 5th most congested city.

    TomTom Traffic Index 2025, as reported by Deccan Chronicle.

    Limits: City averages. Your own route and times will differ.

    Used for: Your commute, in daysRead the source

67. Official data · 2025

    Permanent staff get gratuity after 5 years of service. Since 21 November 2025, fixed-term staff get it after 1 year. It's 15 days' pay (basic plus DA) for each year of service. Up to ₹20 lakh is tax-free, and employers must pay within 30 days of you leaving.

    Code on Social Security, 2020 (in force from 21 November 2025), as reported by Business Today.

    Limits: How the year is counted can differ. Check your company's HR policy and the code's own rules.

    Used for: Your gratuity dateRead the source

68. Official data · 2026

    An old EPF account can keep earning interest until you're 58, even with no new money going in.

    Employees' Provident Fund Organisation, as reported by Business Today, September 2026.

    Limits: Sources differ on when an account counts as inactive. Check the EPFO member portal for your own accounts.

    Used for: Old PF accountsRead the source

69. Official data · 2026

    Most people must file their income tax return by 31 July. Late, it costs ₹1,000 if income is up to ₹5 lakh, or ₹5,000 above that, plus 1% a month interest on unpaid tax. Employers must give Form 16 by 15 June.

    Income-tax Act, 1961, sections 234F and 234A, and Income-tax Rules, rule 31, as summarised by Tax2Win and India Briefing.

    Limits: No late fee applies if your income is below the basic exemption limit. A new Income-tax Act applies from tax year 2026-27, and section numbers change.

    Used for: Your tax return datesRead the source

70. Official data · 2026

    From 2026, a return with business or professional income and no audit is due by 31 August, a month after the 31 July date for salaried people. With an audit, it's due by 31 October.

    Finance Act, 2026, amending section 139(1) of the Income-tax Act, 1961, as reported by TaxGuru, Winvesta and Busy.

    Limits: We read this in tax publishers' reports, not the Act itself. Check the official income tax website for your year.

    Used for: Tax return dates for people who run their own workRead the source

71. Official data · 2026

    To apply for Canadian citizenship, you must have been in Canada for at least 1,095 days in the 5 years before you apply. Days as a permanent resident count in full. Days before that, on a work or study permit, count as half days, up to 365.

    IRCC, Residence and physical presence requirements, Canadian citizenship operational instructions.

    Limits: Days outside Canada don't count. IRCC suggests applying with more than the minimum, in case of mistakes.

    Used for: When you can apply to settle abroadRead the source

72. Official data · 2026

    Skilled Worker visa holders can usually apply for settlement (indefinite leave to remain) after 5 years. A move to a 10-year baseline has been proposed, but as of October 2026 it is not in the Immigration Rules.

    UK Immigration Rules and the earned settlement consultation, as summarised by FSP Law (status at 5 October 2026).

    Limits: The rules could change at short notice. Check GOV.UK before you plan anything.

    Used for: When you can apply to settle abroadRead the source

73. Official data · 2026

    EU Blue Card holders can get a settlement permit after 21 months of work with B1 German, or after 27 months with A1 German.

    Land Berlin, Settlement permit for holders of an EU Blue Card, Service Portal.

    Limits: The months count only while you pay into the pension system. Other rules apply too.

    Used for: When you can apply to settle abroadRead the source

74. Official data · 2026

    To apply for Australian citizenship you usually need 4 years of lawful residence right before you apply, with the last 12 months as a permanent resident.

    Australian Citizenship Act 2007, general residence requirement, as summarised by One Planet Migration Law (2026).

    Limits: Time away counts against you: usually under 12 months away in the 4 years, and under 90 days in the last year. Check the Department of Home Affairs.

    Used for: When you can apply to settle abroadRead the source

75. Official data · 2026

    Green card holders can usually apply for US citizenship after 5 years, or after 3 years if married to and living with a US citizen.

    USCIS, Citizenship and Naturalization.

    Limits: You also need enough time physically in the US, and other rules apply.

    Used for: When you can apply to settle abroadRead the source

76. Official data · 2026

    TOEFL, IELTS and PTE scores are valid for two years, and must still be valid on the deadline you apply by.

    Stanford Graduate School of Business, English language proficiency: TOEFL, IELTS and PTE.

    Limits: Most universities and visa offices use two years, but some count to their own deadline. Check each one.

    Used for: Your test score's expiry dateRead the source

77. Official data · 2026

    GRE and GMAT scores are valid for 5 years.

    Baylor University Graduate School, Submitting test scores.

    Limits: Some schools count the 5 years to the start of your course, not your test date. Check each one.

    Used for: Your test score's expiry dateRead the source

78. Study · 2013

    In a 4.5-year trial of 903 adults under 55, people who used sunscreen every day showed no detectable increase in skin ageing, and 24% less ageing than people who used it some of the time.

    Hughes, M. C. B., Williams, G. M., Baker, P. & Green, A. C. (2013). Sunscreen and prevention of skin aging: a randomized trial. Annals of Internal Medicine, 158(11), 781-790.

    Limits: The trial was in sunny Australia and measured skin on the back of the hand.

    Used for: Wear sunscreen every dayRead the source

79. Review · 2026

    Hair loss treatment tends to work best when it starts early. Once a hair follicle shrinks, it gets harder to grow the hair back.

    American Academy of Dermatology, Hair loss: overview and treatment pages.

    Limits: Some hair loss, like after an illness or childbirth, often settles on its own.

    Used for: See a skin and hair doctorRead the source

80. Review · 2004

    Muscle mass drops by about 3% to 8% a decade after the age of 30, and faster after 60.

    Volpi, E., Nazemi, R. & Fujita, S. (2004). Muscle tissue changes with aging. Current Opinion in Clinical Nutrition and Metabolic Care, 7(4), 405-410.

    Limits: An estimate across many people, not a prediction for you.

    Used for: Start strength trainingRead the source

81. Official data · 2020

    Adults should do muscle-strengthening activities that work all the major muscle groups on 2 or more days a week.

    WHO guidelines on physical activity and sedentary behaviour (2020).

    Used for: Start strength trainingRead the source

82. Official data · 2026

    Candidates get 6 attempts in all at each CFA level, and can sit at most twice in a calendar year. A partial attempt still counts.

    CFA Institute, CFA Program policies: attempt limits.

    Limits: Check the policy page before you register, in case the limits change.

    Used for: CFA exam attemptsRead the source

83. Official data · 2022

    You can apply to join the voters' list from 17. Your name goes on the list on the first of four dates a year after you turn 18: 1 January, 1 April, 1 July or 1 October.

    Election Commission of India press note, 2022, as published by Goa's Department of Information and Publicity.

    Limits: New voters use Form 6. The online portal has moved before, so use the Election Commission's current site.

    Used for: Register to voteRead the source

84. Official data · 2026

    A late GSTR-3B costs ₹50 a day (₹20 a day for a nil return), plus 18% a year interest on tax paid late. The late fee is capped, and the cap depends on turnover.

    Central Goods and Services Tax Act, 2017, sections 47 and 50, as summarised by TaxGuru.

    Limits: Sources differ on the caps, and the government sometimes waives late fees. Check the GST portal.

    Used for: Late GST returnRead the source

85. Official data · 2022

    A buyer must pay a registered micro or small enterprise by the agreed date, and within 45 days of accepting the goods or services at most. If they pay late, they owe compound interest, added monthly, at three times the RBI bank rate.

    Micro, Small and Medium Enterprises Development Act, 2006, sections 15 and 16, as explained by SCC Online.

    Limits: It covers micro and small enterprises registered on Udyam. A 2026 amendment may change the process once notified.

    Used for: Unpaid invoicesRead the source

86. Official data · 2026

    The RBI bank rate is 5.75% after the October 2026 policy decision.

    Reserve Bank of India, Monetary Policy Statement, 7 October 2026.

    Limits: It changes with RBI policy. Put in the current rate if it has moved.

    Used for: Unpaid invoices (three times the bank rate)Read the source

87. Official data · 2026

    Pensioners give a life certificate each year between 1 and 30 November. People aged 80 and over can give it from 1 October.

    Department of Pension and Pensioners' Welfare, Jeevan Pramaan rules, as summarised by Outlook Money.

    Limits: If it's missed, the pension can pause until it's given. Check with your bank or pension office.

    Used for: Pension life certificateRead the source

Books that shaped this

• The Procrastination Equation by Piers Steel

  Why we delay, in one formula

• Solving the Procrastination Puzzle by Timothy Pychyl

  Short, practical, research-based

• The Power of Regret by Daniel H. Pink

  The four regrets most people share

• Atomic Habits by James Clear

  Habit stacking, the two-minute rule and never missing twice

• The Power of Habit by Charles Duhigg

  Every habit runs on a cue, a routine and a reward

• Eat That Frog! by Brian Tracy

  Do the biggest task first, and sort the rest from A to E

• The Now Habit by Neil Fiore

  Procrastination is fear, so make starting feel safe

• Tiny Habits by BJ Fogg

  Start so small you can't fail

• Thinking, Fast and Slow by Daniel Kahneman

  How our minds misjudge risk and loss

• Decisive by Chip & Dan Heath

  A simple process for better decisions

• Four Thousand Weeks by Oliver Burkeman

  Your time is limited, so choose on purpose

• The Psychology of Money by Morgan Housel

  Behaviour matters more than maths

• Getting Things Done by David Allen

  Get everything out of your head

• Essentialism by Greg McKeown

  The power of a Not-To-Do list

What we leave out: findings that later failed to replicate (for example, the strong form of “ego depletion”). Anecdotal books are labelled as such.