The rate on a savings account tells you less than it seems. Whether it is simple or effective, whether it applies to your whole balance, whether a fee is needed to get it, and how it compares with inflation all change what your money actually earns. This guide works through each with examples, and links to calculators that repeat the arithmetic on your own figures.
Run the numbers yourself
⚠️ About the numbers on this page: rates, fees and inflation figures in the examples are illustrative assumptions chosen to show the method. They are not any provider’s current rates or official inflation data.
Three Different Products Are Sold as “Savings”
This distinction decides what happens to your money if the provider fails, and it matters far more than the rate on the front page. Not everything marketed as “savings” is the same kind of product.
- A deposit at a licensed bank. Your money sits on the bank's balance sheet and a national deposit guarantee scheme covers it up to a statutory limit if the bank fails — the FDIC in the United States, the FSCS in the UK, national schemes across the EU, DICGC in India. Limits and conditions differ and change.
- Safeguarded e-money or a payment account. Many fintech apps are not banks. They hold customer money under an e-money or payment-institution licence, which normally requires it to be kept separate from the firm's own funds. Safeguarding is a real protection but it is not deposit insurance, and recovery if the firm fails works differently and can take longer.
- An investment. Round-up apps and “interest on cash” products backed by money-market funds are investments. Capital is at risk, there is no fixed rate, and no deposit guarantee applies. An investor compensation scheme may cover the firm failing; it never covers the value falling.
If you take one thing from this page: establish which of the three you are opening before you deposit. The provider's own terms say so plainly, and it is the question that decides your actual risk.
Partner Banks, and Why the Brand Is Not the Bank
A large number of savings apps are technology companies sitting in front of a bank they do not own. The app builds the interface; a partner bank holds the deposit and provides the insurance. Sometimes several partner banks are used, and balances are swept between them.
Two practical consequences. First, your protection is the partner bank's, so you need to know which bank that is. Second, if you already hold money directly at the same bank, the two balances usually share one protection limit rather than each getting their own — an easy way to be less covered than you assume while feeling diversified.
How Interest Is Quoted, and Why Two Identical Rates Are Not Identical
The headline number is the most advertised and least reliable part of a savings product:
- Simple rate versus effective rate. One accounts for compounding and one does not, so the two are not directly comparable. Check which you are being shown.
- Balance caps. Plenty of accounts pay the advertised rate only up to a threshold, with everything above it earning far less or nothing at all.
- Tiers. Rates that improve at higher balances, or that require a paid subscription, direct deposits or a minimum number of card transactions.
- Introductory rates. A bonus for twelve months that reverts to something much lower, with no notification you will notice.
- Payment frequency. Monthly interest compounds sooner than annual, which matters more the longer you hold.
- Gross versus net. Quoted rates are normally before tax, and your own tax position decides what actually reaches you.
A rate is also a decision the provider can revise. Treat it as today's figure, not a property of the account.
Worked Example: Nominal Growth Versus Real Growth
Take 10,000 left in an account paying an effective 4% a year, with interest added to the balance. After 5 years it is 12,166.53; after 10 years it is 14,802.44. That is the nominal result — the number on the statement.
What that balance can buy depends on inflation over the same 10 years. In today’s money:
| Inflation (a year) | Real rate | 14,802.44 in today’s money |
|---|---|---|
| 2% | +1.96% | 12,143.16 |
| 4% | 0.00% | 10,000.00 |
| 6% | −1.89% | 8,265.61 |
The balance is identical in all three rows. Only its purchasing power differs. With inflation equal to the savings rate, ten years of interest leave you exactly where you started in real terms; above it, you go backwards while the statement goes up. Use the compound interest calculator for the nominal figure and the inflation calculator for the real one.
When a Subscription Fee Cancels the Interest
Several providers pay their highest rate only on a paid tier, which is worth checking with arithmetic rather than intuition. A monthly fee is a fixed cost, so weigh the extra interest on your actual balance against the annual fee. A premium tier paying one percentage point more earns an extra ten units a year per thousand held — so on a small balance a modest monthly fee consumes the entire benefit and more. On a large balance the same fee is trivial. Same product, opposite answer, depending on a number only you know.
The break-even balance is simple to work out: annual fee ÷ extra interest rate. Suppose (as an illustration, not any provider’s pricing) a premium tier costs 5 a month — 60 a year — and pays one percentage point more:
| Balance | Extra interest (1 point) | Annual fee | Net effect |
|---|---|---|---|
| 1,000 | 10 | 60 | −50 |
| 6,000 | 60 | 60 | 0 (break-even) |
| 20,000 | 200 | 60 | +140 |
Below 6,000 the upgrade loses money; above it, it earns. Check whether the higher rate applies to your whole balance or only up to a cap, because a cap moves the break-even point — and if the cap sits below it, the upgrade can never pay for itself on interest alone.
Access Matters More Than the Rate
Instant access, a notice period, or a fixed term that cannot be broken are three different products. The highest rate almost always belongs to the least accessible one, and that trade is only worth taking with money you genuinely will not need.
The reason is concrete rather than theoretical: if locked savings force you to borrow when something breaks, the borrowing rate will comfortably exceed the extra interest you earned. This is why an emergency buffer belongs somewhere instantly accessible even at a lower rate, and why “how fast can I actually get this money, including the transfer” deserves a place alongside the rate in any comparison. If you are weighing locking money away against the cost of borrowing, our EMI calculator shows what a loan would actually cost over the same period.
Automatic Saving: the Feature That Does the Work
Round-ups, scheduled transfers on payday and goal-based pots are behavioural tools, not financial ones. They work because they remove a repeated decision, and removing the decision is most of the battle.
Two cautions. Round-ups generate small, frequent amounts — genuinely useful for building a habit, rarely material on their own; a scheduled transfer of a real amount on payday does more. And where round-ups feed an investment account rather than a savings account, you have taken on market risk, which is fine if intended and a surprise if not.
Inflation Is the Benchmark, Not the Bank Down the Road
A savings balance is nominally safe and can still lose purchasing power every year it sits below inflation. That is not an argument for taking risk you do not want — cash you may need soon belongs in cash regardless — but it is the right frame. Money you will not touch for many years has a different problem from money you might need next month, and the same account rarely solves both.
The useful figure is the real rate: (1 + savings rate) ÷ (1 + inflation) − 1. At 4% interest and 6% inflation it is about −1.9% a year — the balance rises while what it buys falls. Our inflation calculator works this out for your own rates, and the savings goal calculator shows how much to put aside each month once you know what you are saving for.
Questions to Settle Before Depositing
- Is this a bank deposit, safeguarded e-money, or an investment?
- Which institution actually holds it, and which country's protection scheme applies, to what limit?
- Do I hold money at that same institution elsewhere, sharing one limit?
- Does the advertised rate apply to my whole balance, and what makes it change?
- Is a paid tier required, and does the fee survive contact with my actual balance?
- How quickly can I get the money out, and what does breaking early cost?
- How is interest taxed where I live, and does the provider report it?
Protection and available providers differ by market — our guides by country cover the ones we research, and our guide to euro savings goes through the European position in detail.
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Frequently Asked Questions
What is the difference between a simple rate and an effective rate?
A simple (nominal) rate ignores compounding. An effective rate — often labelled AER or APY — includes the effect of interest being added to the balance during the year, so it is the one to compare. A 4% nominal rate compounded monthly is an effective rate of about 4.07%. Our guide to the effective annual rate explains the conversion, and the compound interest calculator performs it.
Is money in a savings app protected?
It depends on what the money legally is, and the difference matters more than the interest rate. Deposit insurance covers bank deposits — the FDIC in the US, the FSCS in the UK, national schemes across the EU, DICGC in India — so it applies only where your money is held as a deposit at an insured bank, either the app’s own bank or a partner bank. It does not cover investments, and apps that are payment or e-money firms usually safeguard customer money instead, which is a different arrangement with a different recovery process. Limits and conditions differ by scheme.
Before depositing, establish which of the three your money will be: a bank deposit, safeguarded e-money, or an investment. The provider’s own terms state this. Nothing protects you against an investment falling in value.
When is a paid savings tier worth it?
When the extra interest on your actual balance exceeds the fee. The break-even balance is the annual fee divided by the extra rate: a tier costing 60 a year that pays one percentage point more breaks even at a 6,000 balance. Check whether the higher rate applies to your whole balance or only up to a cap.
What is a real return?
The growth left after inflation: (1 + savings rate) ÷ (1 + inflation) − 1. At 4% interest and 2% inflation it is about 1.96% a year; at 4% interest and 6% inflation it is about −1.89%, meaning the balance grows while what it buys shrinks.
How quickly can I access my savings?
It depends on the account type, not the brand. Instant-access accounts allow withdrawals at any time, notice accounts require a set warning period, and fixed-term accounts may not allow early withdrawal at all or charge for it. Transfer times to your current account vary too, so check the terms before relying on an account for emergencies.
Sources
This page is written from the primary sources below — the providers’ own published terms and pricing, and the relevant regulators’ own published material. Links were last confirmed to load on . Providers change their terms without notice, so treat anything specific here as a starting point and confirm it against the source before acting on it.
How this page is researched
This page is desk research. It is built from published sources — regulators’ and deposit-protection schemes’ own material, and providers’ published terms where a concept needs one — not from personal testing. We explain the concepts in plain language, work through examples with the assumptions stated, and link to calculators so you can check the arithmetic with your own figures. Where a detail depends on a provider’s current terms, we say so. We have not necessarily opened or funded an account with any provider mentioned, so treat anything specific — a fee, a rate, an availability claim — as a starting point to confirm with the provider rather than a guarantee. Our about page sets out the method and its limits in full.
How we are funded. This site is supported by advertising. It does not use affiliate or referral links, and no provider pays to be mentioned or to influence what we write — see our disclosure.
Important: this page is general information for educational purposes only. It is not financial, investment, tax or legal advice, and it is not a recommendation to buy or use any particular product. Nothing here takes account of your personal circumstances or objectives.
Product features, fees, interest rates, availability and regulatory status change often and differ by country. Figures and details mentioned may be out of date — always confirm the current terms directly with the provider before acting. Investments can fall as well as rise in value, and you may get back less than you put in. Consider speaking to a qualified adviser who is authorised in your own country.