Find your online activation code, and take a step towards inner peace.
To do your Self Assessment tax return online, you first need to find your activation code.
If you’ve lost it, you’ll have to request a new one online.
Once you have it, you will have taken a first step towards inner peace.
To find out more about doing your Self Assessment return, visit www.gov.uk/selfassessment.
Self Assessment - Activation code
Don’t include personal or financial information like your National Insurance number or credit card details.