Should I register for VAT voluntarily?
| Pros | Cons | |
|---|---|---|
| Costs | Reclaim VAT on business purchases and set-up costs | Admin: VAT returns every period, even if nil |
| Customers | VAT-registered customers can reclaim what you charge, so no real cost to them | Consumers pay 20% more, or your margin falls |
| Credibility | Some larger customers prefer VAT-registered suppliers | None |
| Records | Clean records from day one | Making Tax Digital software required |
Voluntary registration usually pays off if most of your customers are VAT-registered businesses, or if you have large VAT-bearing costs. It usually doesn’t if you sell mostly to consumers at competitive prices.
Can I claim VAT back on purchases before registration?
Yes, within limits. You can normally reclaim VAT on goods bought for the business up to 4 years before your registration date that you still hold, and on services supplied up to 6 months before. You claim it on your first VAT return.
Can I backdate my VAT registration?
Yes. When registering voluntarily you can ask for a registration date up to 4 years in the past. You must then account for VAT on your standard- and reduced-rated sales from that date, as well as reclaiming VAT on costs. Once registered, the date cannot be changed, and a request to amend it carries no right of appeal. Work out both sides before choosing.
Can I register before I start trading?
Yes. UK businesses can register before making taxable supplies, as long as they are in business and intend to make them. HMRC may ask you to show that. HMRC removed its guidance on voluntary registration for overseas businesses in 2024; they register once they make, or expect to make within 30 days, a UK taxable sale.
What do I have to do once registered?
- Charge VAT on your taxable sales and issue VAT invoices
- Keep digital records and file returns under Making Tax Digital, usually every 3 months
- File a return for every period, even if there is nothing to pay or reclaim
Common scenarios
“I’m a new B2B consultancy expecting £40,000 in year one.”
Your clients can reclaim the VAT you charge, so registering costs them nothing and lets you reclaim VAT on your laptop, software and set-up costs. Voluntary registration usually makes sense here.
“I sell handmade goods to consumers at markets.”
Registering adds 20% to your prices or cuts your margin, and your purchases carry little VAT. Most businesses like this wait until they approach £90,000.
Not sure it’s worth it?
We model your sales and costs both ways and tell you whether registering early pays, and from which date.
Frequently asked questions
Can I deregister if I registered voluntarily?
Yes, if you can satisfy HMRC that taxable turnover in the next 12 months will be £88,000 or less. You cannot backdate the cancellation.
Do I have to use Making Tax Digital if I register voluntarily?
Yes. Making Tax Digital applies to every VAT-registered business, however it came to be registered.
Can I choose any registration date?
You can choose the date when registering voluntarily, up to 4 years back. Once HMRC has registered you, the date cannot be changed.
Should I register voluntarily just to look bigger?
Only if the numbers work. If most of your customers are consumers, the price rise usually outweighs the credibility benefit.
Related guides
Sources
General information based on HMRC guidance as at 27 September 2026, not advice for your situation. Rules change and depend on your facts. Talk to us before acting.