Self Assessment for Dividend Income 2026/27

If your dividend income exceeds £500, you must report it through Self Assessment. HMRC cannot collect dividend tax through PAYE. This guide covers exactly when to register, what to include, deadlines, and penalties for missing them.

Last updated for the 2026/27 tax year.

Key dates for 2026/27

When you must file

You must register for Self Assessment if your dividend income exceeds £500 in a tax year. That threshold came in from 2024/25, reduced from £1,000. HMRC has no way to collect dividend tax automatically through PAYE. The responsibility to declare and pay sits entirely with you.

If you already file Self Assessment for another reason — self-employment, rental income, salary above £100,000, being a company director — you just add dividend income to that return. No separate filing needed. If you don't currently file, you must register with HMRC by 5 October following the end of the tax year.

What to include on the return

UK dividends go in the 'UK dividends' section of the SA100 (with SA101 supplementary pages if needed). UK dividends have no withholding tax, so the figure on your broker statement or dividend voucher is the gross amount.

Your investment platform usually provides a consolidated tax certificate in April covering all dividends paid during the year. Use that. Enter the total and HMRC's system applies the £500 allowance and calculates tax at the right rate.

Foreign dividends go on the SA106 Foreign income supplementary pages — not the UK dividends section. Enter the gross amount before any withholding tax, the withholding tax deducted, and claim any double taxation relief. Convert foreign currency to sterling at the exchange rate on the date you received it.

Worked example: calculating what you owe

Scenario: An investor has a salary of £35,000 and dividend income of £3,000 outside an ISA in 2026/27.

• Total income: £38,000. Salary already uses the Personal Allowance (£12,570) and sits within the basic-rate band.
• Dividends of £3,000 sit on top. Total income is £38,000, within the basic-rate band.
• First £500 of dividends: dividend allowance, £0 tax.
• Remaining taxable dividends: £2,500 at 8.75% = £218.75.
• Total dividend tax due: £218.75.
• Self Assessment required: Yes, dividends exceed £500.
• Deadline to file and pay: 31 January 2028 (for 2026/27 income).

Salary income tax is collected through PAYE and need not be re-reported unless the PAYE tax code was wrong.

Penalties for late filing or non-filing

If you miss the 31 January filing deadline:

• Immediately: £100 fixed penalty (even if no tax is owed).
• 3 months late: £10 per day for up to 90 days (maximum £900).
• 6 months late: 5% of tax due or £300, whichever is greater.
• 12 months late: A further 5% of tax due or £300.

Interest also runs on late payment from 31 January. If you have missed a deadline, file as soon as you can and contact HMRC. They may reduce penalties for genuine error, but that is not guaranteed. Penalties apply even if no tax is owed.

ISA and pension dividends, no filing needed

Dividends inside a Stocks and Shares ISA or pension (SIPP) are completely exempt and don't need to be declared. They don't count toward the £500 threshold either. If all your dividends come from ISA holdings, you have no dividend tax reporting obligation regardless of the amount received.