A quick note: this article is general information, not personal advice. Tax and accounting rules change and everyone's situation is different, so please don't act on anything here without checking how it applies to you. We'd be happy to help — get in touch before making any decisions.
VAT registration is one of those subjects where the rules sound straightforward and the reality is anything but. The good news is that once you get to grips with the thresholds, the schemes and what registration actually means for your customers and your cashflow, it stops being something to dread.
The compulsory registration threshold
You must register for VAT if your taxable turnover in any rolling 12-month period exceeds £90,000. The word "rolling" is the bit people miss. It is not your accounting year. You also have to register if you expect to exceed the threshold in the next 30 days on its own, say you sign a one-off £100,000 contract.
Once you breach the threshold, you have 30 days to notify HMRC, and registration takes effect from the first day of the second month after you crossed it.
Voluntary registration: why you might do it sooner
Plenty of businesses register before they have to. The usual reasons:
- Your customers are VAT-registered. They reclaim the VAT you charge, so it doesn't add to their cost, while you get to reclaim VAT on your own purchases.
- You're investing heavily upfront. Stock, equipment, fit-out costs and even some pre-registration expenses can come back as VAT reclaims.
- It looks more established. A VAT number on your invoice can help when you're selling to bigger businesses.
Voluntary registration: why you might not
If you sell mainly to consumers or to small unregistered businesses, registering for VAT effectively makes your prices 20% higher unless you swallow the cost yourself. For a sole trader hairdresser, decorator or small retailer, that is usually a poor trade.
Which scheme should you use?
- Standard VAT accounting. Account for VAT on invoices issued and received, and reclaim everything you're entitled to.
- Cash accounting. Pay VAT when customers pay you and reclaim when you pay suppliers. Available below £1.35m turnover, and excellent for cashflow when customers are slow to pay.
- Annual accounting. One return per year, with monthly or quarterly payments on account.
- Flat Rate Scheme (FRS). You charge VAT at 20% but pay HMRC a flat percentage of gross turnover and keep the difference. It looks great until the "limited cost trader" 16.5% rate, which catches most consultants and knowledge-work businesses.
Making Tax Digital for VAT
Every VAT-registered business is now in MTD. In practice that means digital records and submission through compatible software such as Xero, QuickBooks or FreeAgent. If you're still keeping your VAT in a spreadsheet, registering nudges you into modernising, and that's no bad thing.
What about the deregistration threshold?
If your taxable turnover drops below £88,000, you can apply to deregister. It's worth a review every few years if your business model shifts, for instance you stop selling to consumers, or you move to mainly zero-rated work.
Common traps
- Forgetting that the threshold is a rolling 12 months, not the financial year.
- Treating disbursements as part of your turnover when, handled properly, they're not.
- Choosing FRS without modelling the limited cost trader percentage first.
- Missing the pre-registration VAT reclaim window. You can claim back VAT on goods bought up to four years before registration if they're still in use, and on services up to six months before.
If you're approaching the threshold or weighing up voluntary registration, book a free consultation and we'll model the scheme that fits your business best. We work with VAT-registered businesses across Kent and the UK every day.