HMRC tax alert: understanding the end of tax year deadlines
As the UK tax year draws to a close on 5 April, many British taxpayers receive reminders about important deadlines. These are not just administrative formalities; they represent final opportunities to use valuable tax allowances and reliefs that cannot be carried forward. Acting before the cut-off can have a direct impact on the amount of money you keep from your savings and investments.
This period often involves reviewing your personal finances to ensure you are making the most of the rules set by HMRC. For consumers, it’s a practical exercise in financial planning, focusing on legitimate ways to reduce a potential tax bill or boost your savings within the current year’s limits.
Key allowances to use before the tax year ends
Several core UK tax allowances reset on 6 April. If you don’t use them, you lose them. The most significant for many people are the Personal Savings Allowance (PSA) and the Individual Savings Account (ISA) allowance.
Your PSA allows basic-rate taxpayers to earn £1,000 in savings interest tax-free, while higher-rate taxpayers can earn £500. Additional-rate taxpayers receive no allowance. With savings rates having risen, more people are at risk of exceeding these limits. If your interest is nearing this threshold, you might consider moving funds into a Cash ISA, where interest is always tax-free.
Your annual ISA allowance is £20,000. You can pay this into a Cash ISA, a Stocks and Shares ISA, an Innovative Finance ISA, or a Lifetime ISA, or split it across these types. Money saved or invested inside an ISA is shielded from Income Tax and Capital Gains Tax indefinitely. Failing to use this allowance means forfeiting a powerful, long-term tax shelter.
Pension contributions and tax relief
Pensions are another area where end-of-year planning is crucial. Contributions you make to a pension benefit from tax relief at your highest marginal rate. For example, a basic-rate taxpayer only needs to pay £80 for the pension provider to receive £100, with HMRC adding the £20 relief.
You can contribute up to 100% of your annual earnings, or £3,600 if higher, and receive tax relief. Higher and additional-rate taxpayers can claim further relief through their Self Assessment tax return. Making a contribution before 5 April uses your allowance for the current tax year and can be an efficient way to reduce your taxable income.
Capital Gains Tax annual exempt amount
For the 2024/25 tax year, you can make gains of up to £3,000 without paying any Capital Gains Tax (CGT). This applies to profits from selling assets like shares (outside an ISA) or second properties. If you have investments that have grown in value, you might consider selling enough to realise a gain up to this exempt amount, which resets on 6 April.
Common mistakes and what to be aware of
One of the most frequent oversights is assuming all actions can be completed instantly on 5 April. Banks and investment platforms need processing time. Submitting an ISA application or a pension contribution close to the deadline carries a risk of it being processed in the new tax year, using the next year’s allowance instead.
Another common error is not understanding the ‘one ISA of each type per year’ rule. You can only open and pay into one Cash ISA per tax year, for instance. If you’ve already paid into a Cash ISA with one provider this year, you cannot open and fund another until the new tax year begins.
It is also vital to remember that tax rules depend on your individual circumstances. The best course of action for a basic-rate taxpayer with modest savings will be very different from that for an additional-rate taxpayer with a large investment portfolio. If your situation is complex, seeking guidance from a regulated financial adviser is often a sensible step.
In summary, the weeks before the tax year ends are a key period for UK financial planning. By reviewing your use of allowances for savings, investments, and pensions, you can ensure you are not missing out on valuable tax-efficient benefits. The core principle is simple: use your allowances or lose them. Taking organised action well before the 5 April deadline gives you the best chance to maximise your money within the rules set by HMRC.
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