Savings Challenge Builder

A savings challenge is a way to turn vague plans to save more into daily or weekly actions that you can check off. Choose from the 1p saving challenge, the 52-week challenge, its reverse, or set up your own goal by a date you choose. The builder calculates the total, how much to save each week and month, and gives you a tracker to print. Then check whether your savings rate is keeping up with inflation.

1p saving challenge, 1 Jan 2027 to 31 Dec 2027

£667.95

1p on day one, rising by 1p a day to £3.65 on day 365.

Average a week£12.81

Average a month£55.66

Smallest to biggest day1p to £3.65

Biggest month£108.50December 2027

What to set aside each month

Month	Days	Set aside	Saved so far
January 2027Jan 2027	31	£4.96	£4.96
February 2027Feb 2027	28	£12.74	£17.70
March 2027Mar 2027	31	£23.25	£40.95
April 2027Apr 2027	30	£31.65	£72.60
May 2027May 2027	31	£42.16	£114.76
June 2027Jun 2027	30	£49.95	£164.71
July 2027Jul 2027	31	£61.07	£225.78
August 2027Aug 2027	31	£70.68	£296.46
September 2027Sep 2027	30	£77.55	£374.01
October 2027Oct 2027	31	£89.59	£463.60
November 2027Nov 2027	30	£95.85	£559.45
December 2027Dec 2027	31	£108.50	£667.95

Your tick-off tracker

Show all 53 weeks of the tracker (365 days to tick off)

Week	Tick when saved	Week total	Saved so far
Week 11 Jan to 7 Jan	1p2p3p4p5p6p7p	£0.28	£0.28
Week 28 Jan to 14 Jan	8p9p10p11p12p13p14p	£0.77	£1.05
Week 315 Jan to 21 Jan	15p16p17p18p19p20p21p	£1.26	£2.31
Week 422 Jan to 28 Jan	22p23p24p25p26p27p28p	£1.75	£4.06
Week 529 Jan to 4 Feb	29p30p31p32p33p34p35p	£2.24	£6.30
Week 65 Feb to 11 Feb	36p37p38p39p40p41p42p	£2.73	£9.03
Week 712 Feb to 18 Feb	43p44p45p46p47p48p49p	£3.22	£12.25
Week 819 Feb to 25 Feb	50p51p52p53p54p55p56p	£3.71	£15.96
Week 926 Feb to 4 Mar	57p58p59p60p61p62p63p	£4.20	£20.16
Week 105 Mar to 11 Mar	64p65p66p67p68p69p70p	£4.69	£24.85
Week 1112 Mar to 18 Mar	71p72p73p74p75p76p77p	£5.18	£30.03
Week 1219 Mar to 25 Mar	78p79p80p81p82p83p84p	£5.67	£35.70
Week 1326 Mar to 1 Apr	85p86p87p88p89p90p91p	£6.16	£41.86
Week 142 Apr to 8 Apr	92p93p94p95p96p97p98p	£6.65	£48.51
Week 159 Apr to 15 Apr	99p£1.00£1.01£1.02£1.03£1.04£1.05	£7.14	£55.65
Week 1616 Apr to 22 Apr	£1.06£1.07£1.08£1.09£1.10£1.11£1.12	£7.63	£63.28
Week 1723 Apr to 29 Apr	£1.13£1.14£1.15£1.16£1.17£1.18£1.19	£8.12	£71.40
Week 1830 Apr to 6 May	£1.20£1.21£1.22£1.23£1.24£1.25£1.26	£8.61	£80.01
Week 197 May to 13 May	£1.27£1.28£1.29£1.30£1.31£1.32£1.33	£9.10	£89.11
Week 2014 May to 20 May	£1.34£1.35£1.36£1.37£1.38£1.39£1.40	£9.59	£98.70
Week 2121 May to 27 May	£1.41£1.42£1.43£1.44£1.45£1.46£1.47	£10.08	£108.78
Week 2228 May to 3 Jun	£1.48£1.49£1.50£1.51£1.52£1.53£1.54	£10.57	£119.35
Week 234 Jun to 10 Jun	£1.55£1.56£1.57£1.58£1.59£1.60£1.61	£11.06	£130.41
Week 2411 Jun to 17 Jun	£1.62£1.63£1.64£1.65£1.66£1.67£1.68	£11.55	£141.96
Week 2518 Jun to 24 Jun	£1.69£1.70£1.71£1.72£1.73£1.74£1.75	£12.04	£154.00
Week 2625 Jun to 1 Jul	£1.76£1.77£1.78£1.79£1.80£1.81£1.82	£12.53	£166.53
Week 272 Jul to 8 Jul	£1.83£1.84£1.85£1.86£1.87£1.88£1.89	£13.02	£179.55
Week 289 Jul to 15 Jul	£1.90£1.91£1.92£1.93£1.94£1.95£1.96	£13.51	£193.06
Week 2916 Jul to 22 Jul	£1.97£1.98£1.99£2.00£2.01£2.02£2.03	£14.00	£207.06
Week 3023 Jul to 29 Jul	£2.04£2.05£2.06£2.07£2.08£2.09£2.10	£14.49	£221.55
Week 3130 Jul to 5 Aug	£2.11£2.12£2.13£2.14£2.15£2.16£2.17	£14.98	£236.53
Week 326 Aug to 12 Aug	£2.18£2.19£2.20£2.21£2.22£2.23£2.24	£15.47	£252.00
Week 3313 Aug to 19 Aug	£2.25£2.26£2.27£2.28£2.29£2.30£2.31	£15.96	£267.96
Week 3420 Aug to 26 Aug	£2.32£2.33£2.34£2.35£2.36£2.37£2.38	£16.45	£284.41
Week 3527 Aug to 2 Sep	£2.39£2.40£2.41£2.42£2.43£2.44£2.45	£16.94	£301.35
Week 363 Sep to 9 Sep	£2.46£2.47£2.48£2.49£2.50£2.51£2.52	£17.43	£318.78
Week 3710 Sep to 16 Sep	£2.53£2.54£2.55£2.56£2.57£2.58£2.59	£17.92	£336.70
Week 3817 Sep to 23 Sep	£2.60£2.61£2.62£2.63£2.64£2.65£2.66	£18.41	£355.11
Week 3924 Sep to 30 Sep	£2.67£2.68£2.69£2.70£2.71£2.72£2.73	£18.90	£374.01
Week 401 Oct to 7 Oct	£2.74£2.75£2.76£2.77£2.78£2.79£2.80	£19.39	£393.40
Week 418 Oct to 14 Oct	£2.81£2.82£2.83£2.84£2.85£2.86£2.87	£19.88	£413.28
Week 4215 Oct to 21 Oct	£2.88£2.89£2.90£2.91£2.92£2.93£2.94	£20.37	£433.65
Week 4322 Oct to 28 Oct	£2.95£2.96£2.97£2.98£2.99£3.00£3.01	£20.86	£454.51
Week 4429 Oct to 4 Nov	£3.02£3.03£3.04£3.05£3.06£3.07£3.08	£21.35	£475.86
Week 455 Nov to 11 Nov	£3.09£3.10£3.11£3.12£3.13£3.14£3.15	£21.84	£497.70
Week 4612 Nov to 18 Nov	£3.16£3.17£3.18£3.19£3.20£3.21£3.22	£22.33	£520.03
Week 4719 Nov to 25 Nov	£3.23£3.24£3.25£3.26£3.27£3.28£3.29	£22.82	£542.85
Week 4826 Nov to 2 Dec	£3.30£3.31£3.32£3.33£3.34£3.35£3.36	£23.31	£566.16
Week 493 Dec to 9 Dec	£3.37£3.38£3.39£3.40£3.41£3.42£3.43	£23.80	£589.96
Week 5010 Dec to 16 Dec	£3.44£3.45£3.46£3.47£3.48£3.49£3.50	£24.29	£614.25
Week 5117 Dec to 23 Dec	£3.51£3.52£3.53£3.54£3.55£3.56£3.57	£24.78	£639.03
Week 5224 Dec to 30 Dec	£3.58£3.59£3.60£3.61£3.62£3.63£3.64	£25.27	£664.30
Week 5331 Dec	£3.65	£3.65	£667.95

Estimates for general information only, not advice. See Important information below.

Tick the boxes as you go. Ticks are not saved, so print a copy to keep.

Are your savings beating inflation?

Put in what you have saved (or plan to save) and the interest rate you are getting. We compare it with the latest UK inflation figure from the Office for National Statistics.

Amount saved (£)Starts as your challenge total.

Your savings rate (AER %)2.50% is only an example. Use your account’s rate.

Inflation rate (%)UK CPI, 12 months to August 2026 (ONS).

No. At 2.50% your savings are losing ground to 3.1% inflation.

Interest over a year£16.70

Balance after a year£684.65

Real return after inflation-0.58%

Worth in today’s money£664.06£3.89 less buying power

To keep its buying power, £667.95 needs to grow to £688.66 in a year, which takes a rate of at least 3.1%. For comparison, the Bank of England’s Bank Rate is 3.75%. This assumes the whole amount sits in the account for a full year; while you are still building the pot, the interest will be smaller because the money goes in bit by bit. Real return = (1 + savings rate) ÷ (1 + inflation) − 1.

Plan it around your pay day

Want a plan in plain words? Add your pay day and what you are saving for, and Claude AI will turn the figures above into a month-by-month routine and explain the inflation result.

Day of the month you get paid

Saving for (optional)

Written by Anthropic’s Claude AI from the figures above. What you enter is sent to it to write the plan, so please don’t include personal details.

Savings challenges compared

Challenge	What you pay in	Total	Average a week	Average a month
1p saving challenge	1p on day one, rising by 1p a day to £3.65 on day 365	£667.95	£12.81	£55.66
1p saving challenge (reverse)	£3.65 on day one, falling by 1p a day to 1p on day 365	£667.95	£12.81	£55.66
52-week savings challenge	£1.00 in week one, rising by £1.00 a week to £52.00 in week 52	£1,378.00	£26.50	£115.15
Reverse 52-week savings challenge	£52.00 in week one, falling by £1.00 a week to £1.00 in week 52	£1,378.00	£26.50	£115.15
52-week savings challenge (£2 steps)	£2.00 in week one, rising by £2.00 a week to £104.00 in week 52	£2,756.00	£53.00	£230.30
Your own goal	A target and a date you choose, split into equal weekly amounts	You choose	Goal ÷ weeks	Varies

Sources: inflation from the ONS, Consumer price inflation, UK: August 2026 (CPI 3.1%, published 16 September 2026; next figures due 21 October 2026). Bank Rate from the Bank of England (3.75%). Personal Savings Allowance from GOV.UK. All checked 16 October 2026. Challenge totals are straight arithmetic. General information only, not financial advice.

How it works and where the numbers come from

The challenge figures are simple arithmetic worked out in your browser. The amount you add in the 1p saving challenge rises by a penny per day, from 1p on day 1 to £3.65 on day 365, making £667.95 over the year. For the 52-week challenge you save £1 in week 1 and each week after saves £1 more, so by week 52 you are saving £52, for a total of £1,378. A custom goal is split into equal weekly payments between your start date and your goal date.

The Consumer Prices Index from the Office for National Statistics is used for the inflation check: 3.1% for the 12 months to August 2026, published on 16 September 2026. The figures for the following period are due on 21 October 2026. The Bank of England’s Bank Rate of 3.75% is shown for comparison. The real return is the savings rate divided by inflation, after each has been expressed as one plus the rate, minus one.

A worked example

Set up your 1p challenge on 1st January 2027 and find that January only costs you £4.96. But by December you are expected to find £108.50, just as Christmas bills land. Running the challenge in reverse means you tackle the big days first when you have the most resolve. If you then leave the finished £667.95 for a year at 2.50%, it earns £16.70 in interest. But after 3.1% inflation that will be worth £664.06 in today’s money – a real return of minus 0.58%.

Frequently asked questions

How much does the 1p saving challenge save?

£667.95 over 365 days. That works out at an average of £12.81 a week or £55.66 a month, starting tiny and building to £3.65 on the last day.

Is the 52-week challenge or the 1p challenge better?

The 52-week challenge saves more, £1,378 against £667.95, but needs a larger weekly amount near the end. The 1p challenge suits tighter budgets and daily habits.

What rate do my savings need to beat inflation?

More than the current inflation rate, which is 3.1% on the ONS CPI measure for August 2026. Anything below that loses buying power, even though the balance grows.

Do I pay tax on the interest?

Most people can earn some interest tax free. GOV.UK sets the Personal Savings Allowance at £1,000 for basic rate taxpayers and £500 for higher rate taxpayers.

Important information

This tool gives general information and estimates only. It is not financial, tax, legal, medical or other professional advice, and it does not take your personal circumstances into account.

This is not financial advice. Interest rates, inflation and tax rules change, and the protection of your savings depends on the provider you use. For free, impartial guidance contact MoneyHelper.

The figures are based on the published sources and dates shown on this page. Prices, rates and rules change, so they may be out of date by the time you read this. Check them with the supplier, provider or official source, or ask a qualified professional, before you make a decision.

The AI-written explanation is produced automatically by Anthropic’s Claude from the figures on this page. It can contain mistakes and should not be relied on.

We don’t keep what you enter. If you use the AI explanation, what you entered is sent to Anthropic so it can write it.

You use this tool at your own risk. Inflation Saving accepts no responsibility for any loss, cost or decision made as a result of using it, as far as the law allows.