Threshold For VAT Registration: Complete Guide for VAT Clients

The threshold for VAT registration is £90,000 of taxable turnover, and it is checked on a rolling 12-month basis, not just once a year. If your turnover for the last 12 months has gone over £90,000, or you expect it to in the next 30 days, you must register with HMRC within 30 days.

This guide is specifically about the threshold itself: what counts towards it, how the rolling test actually works month by month, when voluntary registration below it makes sense, and how deregistering works if your income drops. For the step-by-step registration process, see our guide on how Uber and Bolt drivers register for VAT.

Key takeaways

• The VAT registration threshold is £90,000 of taxable turnover in any rolling 12-month period, according to GOV.UK's threshold guidance.
• The test looks at the previous 12 months at the end of every month — it does not reset at your financial year-end or the 5 April tax year-end.
• Turnover, not profit, is what counts, and costs, fuel and car expenses are never deducted from the calculation.
• You can register voluntarily below £90,000, and you can ask HMRC to deregister once turnover falls below £88,000.
• Missing the 30-day registration deadline can mean backdated VAT and a penalty, so track your rolling total monthly, not annually.

What is the VAT registration threshold?

The VAT registration threshold is the level of taxable turnover — £90,000 in any rolling 12-month period — above which a UK business or self-employed person is legally required to register for VAT with HMRC, whether or not they want to.

What counts towards the £90,000 threshold?

Your standard-rated, reduced-rated and zero-rated taxable sales all count towards the £90,000 threshold, added together before you deduct any costs. Fully VAT-exempt income and genuinely out-of-scope income are excluded, but for most Uber, Bolt and private hire drivers, driving income is taxable turnover in full.

Because the threshold is measured on turnover, a driver working long hours across a busy patch — for example, doing airport runs and peak-time bookings in a city centre — can reach £90,000 in fares well before their actual take-home profit feels anywhere near that high. Fuel, vehicle finance, insurance and platform commission are real costs, but none of them are subtracted when HMRC tests you against the threshold.

Do Uber and Bolt fares count gross or net of commission?

Count the income you earn as the self-employed driver providing the service, not simply whatever lands in your bank account after deductions you don't control. Platform commission structures and how they're reported have changed over recent years, so this is the single figure most drivers get wrong when self-checking their rolling total.

Because operator statements label figures differently — gross fares, net payout, service fee, booking fee — don't guess from memory. Pull your full trip statements and use HMRC's VAT registration estimator to check your position, or ask an accountant to check your specific statements before you rely on a self-calculated total.

How does the rolling 12-month test work?

At the end of every calendar month, you add up your taxable turnover for that month plus the previous 11 months. If that 12-month total is over £90,000, you must register — even if your turnover in any single year, tax year or accounting year never individually crossed the line.

This is the part most drivers misunderstand: the window moves every month, so a strong quarter can push your rolling total over £90,000 mid-year, well before you'd ever check it at your usual year-end. Keeping a running monthly total, rather than an annual glance, is the only reliable way to catch it in time.

What if I expect to go over the threshold in the next 30 days?

You must also register if you genuinely expect your taxable turnover to exceed £90,000 in the next 30 days alone, even if your rolling 12-month total hasn't reached it yet. This forward-looking test usually catches drivers who take on a large block of guaranteed work, such as a fixed-term contract or an unusually busy short period.

In this situation the registration deadline is tighter: you must register by the end of the 30-day period in which you realised turnover would exceed £90,000, and your effective date of registration is the date you realised it — not the date turnover actually crosses the line.

Should I register for VAT voluntarily below the threshold?

Voluntary registration is available even if your turnover sits well under £90,000, and HMRC must register you if you can show you're making taxable supplies in the course of business. It's worth considering if you regularly buy VAT-heavy items like a new vehicle, or want to reclaim VAT on setup costs as a new driver.

The trade-off is real: once registered, you must charge VAT where applicable, keep digital VAT records under Making Tax Digital, and file returns every quarter, whether or not it suits your cash flow. Most private hire and taxi income from passengers is unaffected by rate differences that matter more in other sectors, so weigh the admin burden carefully — read our comparison of Self Assessment vs Making Tax Digital for how the two systems interact.

What happens if I go over the threshold and don't register?

If HMRC finds you should have registered but didn't, they can register you from the correct historical date and require you to account for VAT on sales made since then, even if you never charged customers for it. A penalty can also apply, scaled to how much VAT was due and how late the registration was.

Because this can mean an unexpected VAT bill on income you've already spent, the safest approach is to check your rolling total monthly and act the moment you're close, rather than waiting for a letter from HMRC. See GOV.UK's guidance on penalties for late VAT registration and returns for how penalties are worked out.

Can I deregister if my income drops?

Yes. If your taxable turnover for the next 12 months is expected to fall below £88,000, GOV.UK confirms you can ask HMRC to cancel your VAT registration. This matters for drivers who cut their hours, take time off for health reasons, or move to part-time driving alongside another job.

You must also cancel within 30 days if you stop trading entirely or stop making taxable supplies. HMRC typically confirms cancellation within 40 working days, and you'll need to submit a final VAT return covering the period up to your cancellation date.

Steps to take as you approach the VAT threshold

1. Total your taxable turnover for the last full calendar month.
2. Add it to your turnover for the previous 11 months to get your rolling 12-month figure.
3. Repeat this at the end of every month — not just annually — and note the trend.
4. If your rolling total is approaching £90,000, forecast the next month or two using recent booking patterns.
5. If you expect to exceed £90,000 in the next 30 days, or your rolling total already has, register within 30 days.
6. Decide whether voluntary registration makes sense sooner, based on VAT you could reclaim versus the admin involved.
7. Once registered, set up Making Tax Digital-compatible digital records before your first VAT return is due.
8. If turnover later drops below £88,000 on a forward-looking basis, review whether deregistering makes sense.

Registration, voluntary registration and deregistration compared

Illustrative example

Priya drives for Uber and Bolt in Leeds. Her taxable turnover was steady at around £7,000 a month for most of the year, but she covered extra airport shifts over the summer, pushing three months to £8,500 each. Checking her rolling 12-month total in September, she finds it has reached £91,200 — over the £90,000 threshold — even though her turnover in the tax year to date hadn't stood out to her before.

Because she checks monthly rather than only at her usual year-end review, Priya spots this in time. She registers within 30 days of the month-end in which she went over the threshold, and HMRC confirms her effective date as the first day of the second month after she crossed the line. Had she waited until her annual bookkeeping catch-up, she risked registering months late.

Common mistakes and the penalty each one triggers

Key terms

• VAT taxable turnover: the total value of everything you sell that isn't VAT-exempt, before any costs are deducted.
• Rolling 12-month test: checking your taxable turnover for the previous 12 months at the end of every month, rather than once a year.
• MTD (Making Tax Digital): HMRC's requirement to keep digital records and file returns using compatible software.
• HMRC: His Majesty's Revenue and Customs, the UK tax authority.
• Effective date of registration: the date from which you're legally VAT-registered and must start accounting for VAT.

How Uber Driver Accountant helps

We track your rolling 12-month turnover as part of your monthly bookkeeping, so you're never relying on a once-a-year glance to catch a VAT threshold breach. Fixed fees start from £20 a month, we work only with Uber, Bolt, private hire and taxi drivers, and we're entirely independent of Uber and Bolt. If you're getting close to £90,000, see our VAT services page or use our VAT calculator to check where you stand.

If you'd rather have someone else watch the number for you, our guides on Making Tax Digital for Uber drivers and VAT registration and bookkeeping together cover the practical next steps once you've established you need to register.

Not sure whether your turnover already puts you close to the threshold, or whether voluntary registration would help? Get in touch and we'll go through your figures with you.

Last reviewed 1 October 2026 by the Uber Driver Accountant tax team.

This article is general information, not personal tax advice. Every driver's turnover and circumstances are different, so speak to a qualified accountant before making registration or deregistration decisions, and seek professional representation if HMRC raises a dispute or penalty about your VAT position.