Self Assessment

Self Assessment Online is simple, secure and available 24 hours a day.

You can use Self Assessment online to:

• send a tax return
• amend a tax return
• view your account
• pay your tax bill
• ask a question
• update your contact details

You can also use the secure email facility to send an enquiry and receive a reply.

When you send your return online, you will receive an instant acknowledgement to let you know it has arrived safely, giving you peace of mind.

Using Self Assessment Online if you're self-employed

If you're self-employed or a partner in a business partnership, you can send your tax return using the free service that HMRC provides or you can buy commercial software.

If you want to see what the free service looks like, follow the link below to see a demo of some typical pages from the tax return.

If you're sending a Partnership return you will need to buy commercial software to send your tax return instead. The demo doesn't show pages from tax return products provided by commercial software suppliers.

Use the Self Assessment Online demo

Self Assessment Online for Partnerships and Trusts

You will need to buy commercial software to send your tax return online. As the look and feel of each product varies, these aren't shown in this demo. You can find out more about the products available by following the link below.

Find out more about Self Assessment software from commercial suppliers