How to Register for Self Assessment — UK Step-by-Step Guide

Free guide to registering for UK Self Assessment with HMRC — UTR application, deadlines, documents needed. Step-by-step for first-time filers.

TaxRoot is an HMRC-registered UK tax agent. We file Self Assessment, Corporation Tax, VAT and MTD returns for UK sole traders, landlords and limited companies — entirely online, no office visit needed. Fixed-fee pricing with no hidden charges.

TaxRoot services

• Company Registration — Register your UK Limited Company for just £100
• Self Assessment — File your Self Assessment tax return £134. HMRC-authorised agents handle everything.
• Corporation Tax — Accurate corporation tax filing with real accountants. Stay compliant, stress-free.
• Making Tax Digital — MTD for Income Tax £34/month. Quarterly updates, year-end review, and HMRC filing by authorised agents.
• VAT Returns — MTD-compliant VAT filing handled by UK accountants. From £39/month.

See full pricing · File Self Assessment · Start Corporation Tax filing