01/09/2026
How to Register for Self Assessment UK - we’ve made registration manageable from the start. 📘✅
We walk you through which route applies (sole trader, landlord, CIS subcontractor, company director), the exact details HMRC will ask for, and the key deadline to remember (register by 5 October after the tax year ends). Our guide flags the common mistakes - wrong start dates, incorrect routes, or leaving it too late - so you can avoid last-minute stress.
We work with Black Cab drivers, landlords and CIS subcontractors and understand the specific issues that pop up in those trades. If your accounts are mixed or you’d rather be sure it’s done right, we can help.
Read the full step-by-step guide and make registration one less thing to worry about: https://wix.to/XYymNTD
Got a quick question about whether you need to register? Ask below and we’ll reply. 🕒
Learn how to register for self assessment in the UK, who needs to do it, deadlines to watch, and what details HMRC will ask for.