VAT

VAT Registration: Step-by-Step Guide

6 min read

Last reviewed: 1 January 2026

When you must register

You must register for VAT if your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period, or you expect to exceed it within the next 30 days.

What you'll need before applying

  • Business and bank details
  • Turnover for the last 12 months
  • Government Gateway user ID
  • Company UTR (for limited companies) or NINO (for sole traders)
  • Estimate of taxable turnover for the next 12 months

How to register

  1. Sign in to the VAT online service on GOV.UK
  2. Choose the correct VAT scheme — Standard, Flat Rate, Cash Accounting, or Annual Accounting
  3. Submit and wait for your VAT number (usually 10–30 working days)
  4. Set up MTD-compatible software before your first return is due

After registration

  • Add VAT to invoices from your effective date of registration (EDR)
  • Charge VAT at the correct rate
  • File your first return within one month and seven days after your first VAT period ends
  • Pay any VAT due by the same deadline

Common mistakes

  • Issuing invoices without VAT before your number arrives (you can issue them VAT-inclusive and reissue once the number is confirmed)
  • Choosing the Flat Rate Scheme without modelling the impact on input VAT recovery
  • Forgetting to backdate the registration if you crossed the threshold months ago

Need help choosing a scheme or registering? Book a consultation.

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