Saving money is usually seen as a sensible way to prepare for future expenses. But the amount you keep in a savings account is not always the same as the amount you earn after tax.
The UK’s October 2026 Budget includes a proposed change that deserves attention from people who earn interest on savings. The government plans to increase the income tax rates applied to savings income by two percentage points from April 6, 2027.
The announcement does not mean every saver will automatically pay more tax. The effect depends on taxable income, the amount of interest earned, available allowances and the type of savings account.
Here is what the proposal says and what UK savers should understand before making financial decisions.
What is changing under the UK Budget 2026?
The government’s Budget 2026 documents state that the rates of income tax applied to savings income are due to increase by two percentage points.
The proposed rates are:
| Savings income tax band | Current rate | Proposed rate from April 2027 |
|---|
| Basic rate | 20% | 22% |
| Higher rate | 40% | 42% |
| Additional rate | 45% | 47% |
These are the announced proposed rates for savings income. They should not be confused with the general income tax rates applied to employment income.
The measures are intended to take effect from April 6, 2027, subject to the relevant legislation.
Does this mean everyone will pay tax on savings interest?
No. The amount of tax you owe depends on your circumstances.
The UK tax system includes rules and allowances that can affect how much savings interest is taxable. One important example is the Personal Savings Allowance.
The allowance available to an individual depends on their income tax status. Other rules can also affect the final calculation.
For this reason, two people earning the same amount of bank interest may not necessarily pay the same amount of tax.
Before estimating your tax bill, check your income, tax band, savings interest and available allowances.
How could the proposed change affect your savings?
Consider a simplified example.
Suppose a saver earns £1,000 in taxable savings interest and all of that interest is subject to the basic savings income tax rate.
At a 20% rate, the tax would be £200.
At a proposed 22% rate, the tax would be £220.
The difference would be £20.
This example assumes the entire £1,000 is taxable and ignores personal allowances or other circumstances. It is not a calculation of what every UK saver will owe.
The practical impact may be more noticeable for people with larger taxable savings balances or those who receive substantial interest income. If you want a refresher on how interest builds over time, read our explanation of how compound interest works.
What about the £20,000 Cash ISA allowance?
The government’s Budget documents state that the annual cash Individual Savings Account subscription limit will remain at £20,000.
An ISA is a tax-efficient savings or investment account under UK rules. Interest earned within an eligible cash ISA is generally tax-free.
However, account rules, eligibility and withdrawal conditions still matter. A saver should not move money into an account without understanding its interest rate, access restrictions and terms.
The Budget also mentions exploring a new incentive for people investing in a stocks and shares ISA for the first time. The details of that proposal need to be developed, so it should not be treated as an available benefit yet.
Five things UK savers should review
1. Check how much interest you actually earn
Review statements from every savings account you hold. Add up the interest received or expected during the tax year.
Do not rely on an old estimate if your balance or interest rate has changed.
2. Understand your tax band
Your income tax position affects the savings income rules that apply to you.
If your income changes during the year, your tax position may change as well.
3. Review your Personal Savings Allowance
Check the current HMRC guidance to understand whether your interest falls within your available allowance.
Avoid assuming that all savings interest is automatically tax-free.
4. Compare savings accounts carefully
A higher advertised interest rate does not always mean an account is suitable.
Consider access conditions, withdrawal limits, introductory rates, account fees and whether the provider is authorised.
5. Understand the difference between cash savings and investments
A cash ISA and a stocks and shares ISA have different risks and features.
Cash savings generally aim to preserve the deposited amount, subject to provider and protection rules. Investments can rise or fall in value, and returns are not guaranteed. Our comparison of index funds and individual stocks explains the main differences for beginners.
Should you change your savings strategy now?
A tax announcement alone is not enough reason to make a rushed financial decision.
Instead, use the time before April 2027 to understand how your current accounts work. Compare the after-tax interest you may receive, consider whether an ISA is appropriate and check whether you need immediate access to your savings.
For larger balances or complicated tax situations, consider speaking with a qualified UK tax professional. Before moving money, it also helps to check that your emergency savings are held somewhere suitable.
Frequently asked questions
When will the proposed UK savings tax changes start?
The Budget 2026 proposal states that the higher savings income tax rates will take effect from April 6, 2027, subject to legislation.
Will the Cash ISA allowance change?
The Budget documents state that the annual cash ISA subscription limit will remain at £20,000.
Are savings interest and salary taxed at the same rate?
Not necessarily. Savings income has specific tax rules and allowances. The Budget proposal concerns the rates applied to savings income, rather than a general change to all employment income tax rates.
Should I move all my savings into an ISA?
Not automatically. Consider your eligibility, annual allowance, access needs, interest rates and account conditions before making a decision.
Final thoughts
The UK Budget 2026 savings tax proposal is important because it may change the amount some people keep from their savings interest from April 2027.
The best first step is not to rush into switching accounts. Understand your tax band, check your allowances and compare the after-tax return of suitable savings options. If you are reviewing your wider finances at the same time, these personal finance basics are a useful starting point.
