Guide

Self Assessment for Dividend Income 2026/27

Written by James Whitfield · Updated August 2026 · Checked against 2026/27 HMRC rates

HMRC won't chase you for dividend tax — the responsibility to declare and pay sits with you, and the penalties for getting it wrong start at £100 and climb fast. The good news: for most people it's straightforward once you know the thresholds and dates. Here's exactly when you must register2, what goes where on the return, and the deadlines that matter.

Key takeaways
  • Dividends over £10,000 mean you must register for Self Assessment2 and file a return.
  • Between £500 and £10,000, you can ask HMRC to collect the tax through your PAYE tax code instead1.
  • Register by 5 October 20272 for 2026/27; file and pay online by 31 January 20281.
  • UK dividends go in the UK dividends section; foreign dividends go on the SA106 foreign pages1.
  • Miss the deadline and it's an automatic £100 penalty1 — even if no tax is due.

Key dates for 2026/27

Tax year end5 April 2027
Register for Self Assessment by5 October 2027
Paper return deadline31 October 2027
Online return and payment deadline31 January 2028

When you must file

Dividend income above the £500 allowance is taxable. You must register for Self Assessment if your dividend income is over £10,000 in a tax year; between £500 and £10,000 you can instead ask HMRC to collect the tax through your PAYE tax code (the £500 allowance replaced the previous £1,000 from 2024/25). Either way, HMRC will not collect dividend tax unless you tell them — the responsibility to declare and pay sits 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

An investor has a salary of £35,000 and £3,000 of dividends outside an ISA in 2026/27. The salary keeps them a basic-rate taxpayer, so the dividends are charged at 10.75%:

Salary (basic-rate taxpayer)£35,000
Dividends£3,000
Dividend allowance (0%)£500
Taxable dividends (£3,000 − £500)£2,500
£2,500 taxed at 10.75%£268.75
Dividend tax due (pay by 31 Jan 2028)£268.75

Because the £3,000 is under £10,000, this person could ask HMRC to collect the £268.75 through their tax code rather than filing a full return. Salary income tax is already handled through PAYE and isn't re-reported unless the 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.

Estimate your dividend tax before filing

Use the calculator to get an accurate estimate before completing your Self Assessment return.

Open calculator

Related pages

Dividends and Self Assessment guide Full Self Assessment blog post Foreign dividend tax guide Dividend allowance explained

Sources & references

Every headline figure in this guide is drawn from the official HMRC and GOV.UK sources below and reflects the confirmed 2026/27 rates. Each link opens the relevant official page in a new tab.

  1. Self Assessment tax returns ↗ https://www.gov.uk/self-assessment-tax-returns
  2. Register for Self Assessment ↗ https://www.gov.uk/register-for-self-assessment
  3. Tax on dividends ↗ https://www.gov.uk/tax-on-dividends
Verified against published UK government guidance.

Frequently asked questions

Do I need to file Self Assessment if my dividends are under £500?
No. The Self Assessment filing threshold for dividends is £500. If your total dividends are £500 or less, no filing is required on that basis. However, you may need to file for other reasons (self-employment, high salary, rental income etc).
When is the Self Assessment deadline for 2026/27?
The online filing and payment deadline for 2026/27 (tax year ending 5 April 2027) is 31 January 2028. You must register for Self Assessment by 5 October 2027 if you have not filed before.
Do ISA dividends need to be reported?
No. Dividends inside a Stocks and Shares ISA are completely exempt and do not need to be reported on a Self Assessment return. They do not count towards the £500 threshold.
What happens if I miss the Self Assessment filing deadline?
A £100 fixed penalty applies immediately after 31 January, then £10 per day after 3 months (up to £900), then 5% of tax due (or £300) at 6 months and again at 12 months. Interest also accrues on late payments.
If my dividends are £3,000, do I have to fill in a full tax return?
Not necessarily. Because £3,000 is below £10,000, you can contact HMRC and ask them to collect the dividend tax by adjusting your PAYE tax code, which avoids a full Self Assessment return. Only once dividends exceed £10,000 in a tax year must you register for and complete a return. If you already file for another reason, you simply add the dividends to that return.
How do I report foreign dividends?
Foreign dividends go on the SA106 Foreign supplementary pages, not the UK dividends section. Enter the gross amount before any overseas withholding tax, the withholding tax deducted, and claim double taxation relief where a treaty allows. Convert amounts to sterling using the exchange rate on the date the dividend was received. UK dividend tax still applies to foreign dividends, but the relief prevents you being taxed twice on the same income.

Disclaimer: This guide is for general information only. HMRC rules can change. Always verify deadlines and thresholds on GOV.UK or consult a qualified accountant.

Written and reviewed by James Whitfield and the editorial team.

Every figure is checked against current HMRC and GOV.UK guidance and reviewed for the 2026/27 tax year. We explain the numbers in plain English with worked examples. Editorial standards · About us