Do I have to register for VAT before £90,000 turnover?

No. Registration is only compulsory once your rolling 12-month turnover passes £90,000. Below that it is entirely your choice. Voluntary registration makes sense for some trades - mainly those working for commercial clients or spending heavily on materials and equipment - and is a bad deal for others, especially trades serving price-sensitive domestic customers.

What are the benefits of registering voluntarily?

You can reclaim input VAT on your van, tools, materials and fuel, which adds up fast in equipment-heavy trades. Registration also makes you look established, and some commercial clients simply expect a VAT number before they will put you on their books. If your customers are VAT-registered businesses, the 20% you add costs them nothing - they reclaim it.

What is the downside for domestic work?

Your prices go up 20% for homeowners, who cannot reclaim VAT - or you absorb it and squeeze your margin. A £2,000 job becomes £2,400 overnight against unregistered competitors quoting £2,000. You also take on MTD VAT admin: digital records and VAT returns. For mostly-domestic trades under the threshold, staying unregistered is usually the stronger position.

Is the Flat Rate Scheme better for a builder?

Often not, if you buy a lot of materials. Flat Rate percentages are 9.5% for general building, 14.5% for labour-only building and 16.5% for limited-cost traders, with a 1% discount in year one - but you give up reclaiming input VAT on most purchases. Material-heavy trades usually do better on standard VAT, where every trade-counter receipt claws VAT back.

voluntary vat registration self employed

Should You Voluntarily Register for VAT as a UK Tradesman?

By Eddie · 9 April 2026 · 5 min read

You don't have to register for VAT until your rolling 12-month turnover hits £90,000 - but registering before then is sometimes the smarter play. If you work for commercial clients or spend heavily on materials and kit, voluntary registration can pay for itself. If you mostly serve homeowners, it usually costs you work. Here's how to tell which side you're on.

The case for registering early

Reclaim input VAT - on the van, tools, materials and fuel. A £30,000 van purchase alone can mean a serious VAT reclaim.
You look established - a VAT number signals a real business, not a side hustle.
Commercial clients expect it - some firms and main contractors quietly filter out non-registered trades before quotes are even compared.
Your VAT costs business customers nothing - they reclaim what you charge, so you're not more expensive to them.

The case against

Domestic customers pay 20% more - homeowners cannot reclaim VAT, so you either raise prices or eat the difference.
Admin - MTD VAT means digital records and VAT returns, on top of everything else.
Cash-flow discipline - the VAT you collect is never yours; spend it and the return hurts.

Flat Rate vs standard VAT

If you do register, you choose how to account for it.

Standard VAT

Charge 20% on sales, reclaim VAT on purchases, pay HMRC the difference. More bookkeeping, but every trade-counter receipt claws money back. Material-heavy trades - builders, kitchen fitters, landscapers - usually do best here.

Flat Rate Scheme

Charge 20% as normal but pay HMRC a flat percentage of gross turnover and skip reclaiming input VAT on most purchases. The rates that matter to trades:

General building and construction: 9.5%
Labour-only building: 14.5%
Limited-cost trader: 16.5% - the rate you get pushed onto if you buy very few goods
1% discount off your rate in the first year of registration

The FRS suits labour-heavy trades with tiny material bills - but watch the limited-cost trader trap at 16.5%, which wipes out most of the benefit. And if you do CIS work for contractors, note that reverse-charge sales are excluded from FRS turnover, which usually makes the scheme a bad fit for subbies.

From the tools: My brother, a spark in Leeds, registered voluntarily at around £55,000 turnover - well under the threshold - because a facilities company he wanted to work for required a VAT number to get on their approved list. That one client is now worth roughly £18,000 a year to him. The VAT itself costs the client nothing, since they reclaim it, and in his first registered year he clawed back over £2,000 of input VAT on a van deposit, test equipment and materials. The trade-off was real: he quotes domestic jobs 20% heavier than unregistered sparks. For him the commercial work more than covers it. For his mate doing purely domestic rewires, it wouldn't.

Quick answers

Do I have to register before £90,000?

No - registration is compulsory only once rolling 12-month turnover passes £90,000. Below that, registering is optional and depends on who your customers are.

Why register voluntarily?

To reclaim VAT on the van, tools, materials and fuel, to look established, and to qualify for commercial clients who expect a VAT number. Business customers reclaim what you charge them, so it costs them nothing.

What's the catch for domestic work?

Homeowners cannot reclaim VAT, so your prices rise 20% against unregistered competitors - or your margin shrinks. Plus MTD VAT returns and record-keeping.

Flat Rate or standard for a builder?

Material-heavy trades usually do better on standard VAT, reclaiming input VAT on purchases. The Flat Rate Scheme (9.5% general building, 14.5% labour-only, 16.5% limited-cost) suits labour-heavy trades with small material bills.

This is general information for UK tradespeople, not tax or legal advice. Rules change - check GOV.UK or a qualified accountant for your situation.

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