What If I Saved £10 Every Day?

Twenty years is a long time

A 20-year default is long enough for a child to grow up or for a workplace to change twice. It is also long enough for inflation to matter. The Bank of England aims for 2% CPI inflation, and a 3% illustration here is not a claim that you will beat that. MoneyHelper points out that cash savings rates often lag behind prices. Read the growth line as a rough guide.

Daily, weekly or monthly: the same habit in a different rhythm

Every option is turned into a monthly amount before anything is added up: a daily amount × 365.25 ÷ 12, or a weekly amount × 52 ÷ 12. That makes the scenarios directly comparable. £5 a day is about £152 a month, so it beats a £100 standing order by roughly £600 a year. £10 a day is about £304 a month. Six £1 coins a week is £26 a month. If your saving is lumpy — £70 some weeks, nothing on others — work out a typical month and use the monthly option.

A standing order is a decision you make once

Daily saving needs a daily decision. A monthly standing order on payday does not, which is why it is often the easier habit to keep. Each monthly payment is treated as arriving at the end of the month. Missed months are not modelled, so if your habit would skip August, the total here is too high. MoneyHelper’s budget planner is a good way to check whether the amount is really free to save.

Spare notes and coin jars

Saving a spare £10 note when one turns up, or every £1 coin in your change, is less tidy than a standing order but still adds up: three spare tenners a month is £360 a year, and six £1 coins a week is £312 a year. Choose the weekly or monthly option and enter what you actually set aside. A jar on a shelf earns nothing, so leave the rate at 0% unless the money is paid into an account. MoneyHelper suggests an instant-access account for money you might need at short notice.

Small amounts against an emergency fund

Five pounds a day for ten years is a little over £18,000 before any interest. That is roughly the size of a modest emergency fund, which MoneyHelper suggests should cover three to six months of essential spending. For many people that buffer is the first job for a regular saving habit, before longer-term totals.

Worked example: £10 a day for 20 years

1. Put in each year: £10 × 365.25 = £3,653, well inside the £20,000 annual ISA allowance.
2. Put in over 20 years: £73,050.
3. At an illustrated 3% a year, compounded monthly, the pot reaches about £99,900. Of that, £26,900 is growth, so 73% of the total is still your own money.
4. If prices rise by 2% a year (the Bank of England’s target), £99,900 in 20 years would buy about what £67,200 buys today.

Saving £10 a day for 20 years builds a pot of about £100,000 at 3%, worth roughly £67,000 in today’s money. Most of it comes from the habit, not the interest.

What people get wrong

“Small daily amounts are not worth saving.”

£5 a day is £1,826 a year and £18,263 over ten years before any interest. That is enough to cover several months of essential costs for many households.

“Interest does most of the work.”

Over 20 years at 3%, growth is only about a quarter of the final pot. Interest matters more over longer periods and at higher rates, but regular saving is what builds the total.

“Savings in a bank are protected without limit.”

FSCS protection covers up to £120,000 per person, per banking licence (it rose from £85,000 on 1 December 2025). Brands that share a licence count as one bank.

Common questions

How we calculated this

The amount you enter is converted to a monthly contribution: daily amounts × 365.25 ÷ 12, weekly amounts × 52 ÷ 12, monthly amounts as entered. Contributions are treated as arriving at the end of each month and compounded monthly at the annual rate ÷ 12. At 0% the total equals what you put in. This experiment provides estimates for educational purposes and is not financial advice. Actual results vary depending on rates, fees, taxes, inflation and individual circumstances. Interest is optional and not guaranteed.

Assumptions and limitations

Sources

• MoneyHelper — How to save

  Guidance on building a regular saving habit and checking that a rate still makes sense over time.

• MoneyHelper — Budget planner

  A way to check how much is really free to save each month.

• MoneyHelper — Emergency savings

  Suggests a buffer of three to six months of essential costs, kept somewhere you can reach.

• Bank of England — What are interest rates?

  Why an illustrated rate is not a product, and why real rates move.

• Bank of England — What is inflation?

  The 2% inflation target, and why a total in today’s pounds may buy less later.

• GOV.UK — Individual Savings Accounts (ISAs)

  You can save up to £20,000 a year across ISAs without paying tax on the interest.

• FSCS — Deposit protection limit

  Savings are protected up to £120,000 per eligible person, per authorised firm, from 1 December 2025.

All IfSketch sources · Methodology