Send your tax return by the deadline.
If you did not send an online return last year, allow extra time (up to 20 working days) as you’ll need to register first. There are different ways to register if you’re:
Filling in your return
You need to keep records (for example bank statements or receipts) so you can fill in your tax return correctly.
You can get help filling in your return.
Paying your bill
HMRC will calculate what you owe based on what you report.
Pay your Self Assessment bill by 31 January.
You must send a tax return if, in the last tax year (6 April to 5 April), you were:
- self-employed as a ‘sole trader’ and earned more than £1,000
- a partner in a business partnership
You will not usually need to send a return if your only income is from your wages or pension. But you may need to send one if you have any other untaxed income, such as:
- money from renting out a property
- tips and commission
- income from savings, investments and dividends
- foreign income
Check if you need to send a tax return if you’re not sure.
Other reasons for sending a return
You can choose to fill in a tax return to:
- claim some Income Tax reliefs
- prove you’re self-employed, for example to claim Tax-Free Childcare or Maternity Allowance
HM Revenue and Customs (HMRC) must receive your tax return and any money you owe by the deadline.
The last tax year started on 6 April 2017 and ended on 5 April 2018.
|Register for Self Assessment if you’re self-employed or a sole trader, not self-employed, or registering a partner or partnership||5 October 2018|
|Paper tax returns||Midnight 31 October 2018|
|Online tax returns||Midnight 31 January 2019|
|Pay the tax you owe||Midnight 31 January 2019|
There’s an additional payment deadline of 31 July if you make advance payments towards your bill (known as ‘payments on account’).
You’ll usually pay a penalty if you’re late. You can appeal against a penalty if you have a reasonable excuse.
When the deadline is different
Submit your online return by 30 December if you want HMRC to automatically collect tax you owe from your wages and pension. You must be eligible.
HMRC must receive a paper tax return by 31 January if you’re a trustee of a registered pension scheme or a non-resident company. You cannot send a return online.
HMRC might also email or write to you giving you a different deadline.
Partnership returns if you have a company as a partner
If your partnership’s accounting date is between 1 February and 5 April and one of your partners is a limited company, the deadline for:
- online returns is 12 months from the accounting date
- paper returns is 9 months from the accounting date
2016 to 2017 tax year and earlier
The Self Assessment deadline for these tax years has passed. Send your tax return or payment as soon as possible – you’ll have to pay a penalty.
Contact us if you need help with your Tax Return.