Does daily compounding make a big difference?

The difference between daily and annual compounding is relatively small — roughly 0.1–0.2% per year at typical rates. Over 20+ years it adds up, but the rate of return and contribution amount matter far more.

Do stocks compound daily?

Stock market returns don't compound on a fixed schedule like savings accounts. Share prices change continuously during trading hours, and dividends compound when reinvested. The daily compounding option here gives a close approximation of continuous market growth.

What is the effective annual rate (EAR)?

EAR is the actual annual return after accounting for compounding frequency. A 5% nominal rate compounded daily has an EAR of 5.13%. This calculator automatically accounts for your chosen compounding frequency.

Should I account for inflation?

Yes — inflation erodes purchasing power over time. Use the Advanced Settings to add an inflation rate (2–3% is typical for the UK) to see your results in today's money. This gives a more realistic picture of future wealth.

What's the best strategy for compound growth?

Start early, contribute consistently, and let time do the work. Even small amounts grow significantly over decades. Increasing your contributions by a small percentage each year (use Advanced Settings) can dramatically boost your final balance.

Daily Compounding

Daily Compound Interest
Calculator

See how small monthly savings can grow into life-changing money

Daily compounding means your interest earns interest every single day. See the difference it makes compared to monthly or annual compounding.

Free to useNo signup requiredUsed by UK investors

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2Understand

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Starting amount

£0£20k£200k

Monthly contribution

£0£1k£5k

Expected annual return

Time horizon

yrs

Final Balance

£108,463

After 20 years

You Put In

£58,000

Your own money

Interest Earned

£50,463

Earned passively

You could reach £108,463 — investing tax-free can help you get there

Your money vs compound growth47% from interest

ContributionsCompound interest

To reach £108,463, most UK investors use a Stocks & Shares ISA to invest £200/month tax-free.

Returns depend on the underlying investments and are not guaranteed.

Your £200/month fits within the £20,000 ISA allowance

All growth inside an ISA is tax-free. Start from as little as £1.

Capital at risk when investing

Thousands of UK investors use this calculator monthly

Start investing tax-free ↓

Compare scenarios

See how different choices change your outcome

Growth Over Time

Quick Scenarios

Compounding frequency

Inflation rate

Yearly contribution increase

Inflation adjusts your final balance to show purchasing power in today's money. Contribution increase grows your monthly payment each year.

Your Personalised Insights

Your money earns ~£7/day in interest — that's £50,463 earned while you sleep.
Saving just £50 more per month would add £20,413 to your final balance — that's £12,000 invested for £20,413 extra.
5 more years would add £43,909 — nearly 40% more, showing how powerful time is.
Starting 5 years earlier would add £34,314 to your final balance. Every year you wait costs real money.Start investing now →
Consistency beats timing — investing £200/month for 20 years matters more than picking the perfect moment to start.
At your current plan, you reach £100k in 19 years. That's a real milestone — and it compounds from there.Start building towards it →
56% of your total wealth is built in the final 10 years. Patience is everything.

Next Steps

Affiliate disclosure: Some links below are affiliate links. We may earn a commission at no extra cost to you if you sign up. This does not influence which platforms are shown or how they are described.

Explore popular UK investment platforms

Many UK investors hold investments in a stocks & shares ISA for tax efficiency. Returns depend on the investments held within the ISA and are not guaranteed. Here are popular platforms available to UK investors.

FCA regulatedFree to openTax-free ISA growth

Platform	Min. invest	Fees	ISA	Best for
Trading 212	Start from £1	No commission	Yes	Beginner-friendly
Revolut	No minimum	Free plan available	Yes	All-in-one finance
Estateguru	Start from €50	No investor fees	—	Property-backed lending

Trading 212

Suited for: Beginner-friendly

Commission-free stocks & shares ISA. Clean app, no hidden charges, perfect for getting started.

Most popular choice for UK investors starting small

No commission on stocks1M+ UK usersFree ISA included

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All-in-one appAffiliate

Revolut

Suited for: All-in-one finance

All-in-one finance app with savings vaults, stock trading, crypto, and multi-currency accounts. Great for everyday money management.

40M+ global usersInstant account setupSavings + investing in one app

Free plan availableNo minimumFCA regulatedGet started free →

Property-backed lendingAffiliate

Estateguru

Suited for: Property-backed lending

European property-backed lending platform. Returns are not guaranteed and your capital is at risk. Past performance is not a reliable indicator of future results.

Property-secured loansAuto-invest available

P2P lending is high risk. You could lose some or all of your money. Not covered by the FSCS.

No investor feesStart from €50Licensed by Estonian Financial Supervision AuthorityGet started free →

Capital at risk. These are informational suggestions, not financial advice.

Invest from £1 tax-free

Capital at risk

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Try These Scenarios

Compound Interest Over 10 Years — What to ExpectSee how compound interest works over a 10-year period. Realistic projections for medium-term savings and investment goals.Compound Interest Over 20 Years — Growth ProjectionCalculate compound interest growth over 20 years. See how two decades of consistent investing transforms your savings.Invest £200 Per Month — Compound Growth ProjectionCalculate how £200 monthly contributions grow with compound interest over 10, 20, or 30 years. Free visual calculator.

Explore All Scenarios

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What If You Invest £50 Per Month?See how even £50 per month compounds into real wealth over time. Free calculator with visual charts and year-by-year breakdown.What If You Invest £100 Per Month?See how investing £100 per month grows over time with compound interest. Calculate your projected returns with our free tool.Invest £200 Per Month — Compound Growth ProjectionCalculate how £200 monthly contributions grow with compound interest over 10, 20, or 30 years. Free visual calculator.Invest £300 Per Month — How Much Will It Grow?See how £300 monthly investments compound over 10, 20, or 30 years. Visual calculator with insights and year-by-year projections.Invest £500 Per Month — Long-Term Growth CalculatorSee how £500 monthly investments compound over time. Visualise your potential returns with charts and year-by-year breakdown.Invest £750 Per Month — Wealth Projection CalculatorCalculate how £750 per month compounds over time. See projected balances, interest earned, and milestone years.Invest £1,000 Per Month — Wealth Building CalculatorCalculate how investing £1,000 per month compounds over time. See projected balances, interest earned, and growth charts.Invest £1,500 Per Month — High-Earner Growth CalculatorSee how investing £1,500 monthly builds wealth over time. Projections for 10, 20, and 30-year horizons with compound interest.Invest £2,000 Per Month — Accelerated Wealth CalculatorCalculate how £2,000 monthly investments compound into serious wealth. See projections with charts, milestones, and breakdowns.

How daily compound interest works

With daily compounding, your balance earns interest every day based on that day's balance, including all previously earned interest. A £10,000 deposit at 5% annual interest compounded daily earns slightly more than the same rate compounded monthly or annually, because each day's interest starts earning its own interest sooner. The difference is subtle but grows over longer time periods and larger balances.

Daily vs monthly vs annual compounding

The effective annual rate (EAR) increases with compounding frequency. At 5% nominal: annual compounding gives 5.00% EAR, monthly gives 5.12%, and daily gives 5.13%. On £10,000 over 20 years, daily compounding adds approximately £150 more than annual compounding. The difference is real but modest — what matters far more is the rate of return itself and how consistently you contribute.

Which UK accounts compound daily?

Most UK savings accounts compound daily or calculate interest daily and pay it monthly. High-interest current accounts, NS&I products, and many cash ISAs use daily interest calculation. For stock market investments, compounding occurs through market returns rather than fixed intervals, making the daily vs monthly distinction less relevant for equity investors.

Daily Compound InterestCalculator