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Submit your tax return early

Updated 12 May 2026

© Crown copyright 2026

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This publication is available at https://www.gov.uk/government/publications/submit-your-self-assessment-tax-return-early/file-your-tax-return-early

You do not have to wait until January to do your 2025 to 2026 Self Assessment tax return – you can it submit now and reap the benefits of early filing.

In fact, almost 298,905 early birds submitted their tax return in the first week of the tax year.

Here’s why filing early can benefit you:

  • get refund sooner: if you’re due a refund, submitting your tax return early means it can be processed sooner
  • reduce stress: life gets busy — filing early gives peace of mind and avoids last-minute pressure
  • no need to pay early: filing early doesn’t mean you have to pay early, you still have until 31 January to make your payment, but it means you’ll know what you owe in advance so you can budget
  • fix mistakes in good time: filing early gives you more time to check your information and correct mistakes before the deadline
  • proof of income: a processed tax return can be used as proof of income for mortgages, loan applications, or benefit claims
  • stay ahead of fraudsters: filing early reduces the risk of falling for last-minute scams and helps you stay alert to opportunistic identify thieves and scammers

File online

It’s quick, easy and secure to complete your tax return is online, using HMRC’s online service. Using the online service means:

  • your tax return will be processed quicker
  • you’ll make fewer mistakes as it alerts you to obvious errors
  • help is available every step of the way — linking you to guidance and videos
  • it’s easy to correct any errors or add information you’ve missed
  • you can easily access previous online tax returns for reference and to guide you with your latest tax return

File your Self Assessment tax return online.

Those who use our online services report high levels of satisfaction, but if you need extra help our helpline and webchat advisers will always be there for anybody who needs a specific type of support.

Find out more about setting up a HMRC online services account. Do not share your HMRC online service user ID and password with anyone else.

Help and support  

HMRC wants to help you get your tax right and to file early. Lots of information and support is available.

HMRC online guidance

Help sheets and YouTube videos provide a wealth of information including step-by-step guides and ‘how to’ guidance. 

HMRC’s digital assistant

HMRC’s digital assistant — the assistant will help you find information, and if you need more help it will connect you with a real adviser if needed during opening hours.

Webinars

Live webinars where you can ask questions or if you can’t join, you can watch recorded webinars on demand or on YouTube.

HMRC online account

The HMRC online account and HMRC app — you can instantly find your Unique Taxpayer Reference, get your employment income and history and see your previous tax returns.

Technical support HMRC online services

Technical support for HMRC online services for help signing into online services.

Email updates

Subscribe to HMRC email updates so you don’t miss out on the latest information on Self Assessment .

Social media updates

Follow HMRC on X, Facebook, Instagram and LinkedIn to get the latest updates on Self Assessment services and useful reminders.

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