Quick answer: You must register for VAT once taxable turnover exceeds £90,000 in any rolling 12-month period. Registered businesses file digital VAT returns under Making Tax Digital, usually quarterly, due one month and seven days after the period ends. Bayar Hughes & Co handles registration, scheme selection and every return from our New Eltham office.
When Do You Have to Register for VAT?
VAT registration becomes compulsory when your taxable turnover exceeds £90,000 in any rolling 12-month period — a threshold in force since April 2024. This is the trap many growing businesses fall into: the test is not your accounting year or the calendar year, but any 12 consecutive months, checked continuously. You must also register if you expect to cross the threshold in the next 30 days alone.
Miss the registration deadline and HMRC can charge you the VAT you should have collected — out of your own pocket — plus penalties. If turnover later falls, you can apply to deregister once it drops below £88,000.
Some businesses choose to register voluntarily below the threshold. That can make sense if your customers are VAT-registered themselves (they reclaim the VAT you charge) and you want to recover VAT on your own costs. We'll run the numbers with you before you decide either way.
UK VAT Rates at a Glance
| Rate | Applies to |
|---|---|
| 20% — standard rate | Most goods and services |
| 5% — reduced rate | Domestic fuel and power, children's car seats, certain energy-saving installations |
| 0% — zero rate | Most food, books and newspapers, children's clothing, exports |
Some supplies are exempt (such as insurance, education and most financial services) or outside the scope of VAT altogether — and the distinction between zero-rated and exempt matters, because it affects how much input VAT you can reclaim. Getting a rate wrong on your invoices is one of the most common and expensive VAT mistakes we see, particularly in construction, food and mixed-supply businesses.

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VAT Schemes That Can Simplify Life — or Save You Money
- Flat Rate Scheme — for businesses with turnover up to £150,000 (excluding VAT). You pay HMRC a fixed percentage of gross turnover instead of tracking VAT on every purchase. Less admin, and sometimes a modest saving — though "limited cost" businesses face a higher 16.5% rate, so it's not right for everyone.
- Cash Accounting Scheme — you account for VAT when money actually changes hands, not when invoices are raised. A genuine cash-flow lifeline if your customers pay slowly, available up to £1.35 million turnover.
- Annual Accounting Scheme — one VAT return a year with agreed instalments through the year, instead of four quarterly returns. Useful for businesses with stable, predictable turnover.
The right scheme depends on your margins, your customers and your cash flow. When we take on a VAT client, reviewing scheme choice is one of the first things we do — switching schemes at the right moment can be worth real money.
Making Tax Digital: Every VAT-Registered Business Must Comply
Making Tax Digital (MTD) for VAT is mandatory for all VAT-registered businesses, regardless of turnover. That means two things in practice:
- You must keep your VAT records digitally — spreadsheets alone are only acceptable with bridging software, and paper records no longer qualify.
- Your VAT returns must be submitted through MTD-compatible software — the old HMRC online form is closed for VAT.
We set clients up on compliant cloud software such as Xero, QuickBooks or Sage, connect it to HMRC, and either file your returns for you or review them before you press submit. If you're still on paper or a basic spreadsheet, we'll manage the whole transition so nothing falls through the cracks.
VAT Return Deadlines and the Points-Based Penalty System
Most businesses file quarterly, and each return — with any payment — is due one calendar month and seven days after the end of the VAT quarter. So a quarter ending 31 March must be filed and paid by 7 May.
HMRC now uses a points-based system for late submissions: each late return earns a penalty point, and once you hit the threshold (four points for quarterly filers) you receive a £200 fine, with a further £200 for every subsequent late return until your record is cleared. Late payment is penalised separately, with charges that escalate the longer the VAT stays unpaid, plus interest.
The system is designed to punish repeat lateness — which is exactly what happens when VAT is squeezed in around running the business. Our clients simply send us their records (or we already hold them if we do the bookkeeping) and the return is prepared, checked and filed well before the deadline, every quarter.
How Our VAT Service Works
- Free initial review — we check whether you need to register, whether a voluntary registration or special scheme would benefit you, and quote a fixed fee.
- Registration handled — we prepare and submit your VAT registration to HMRC and set up MTD-compatible software.
- Quarterly returns prepared and checked — we reconcile your records, verify the VAT treatment of unusual transactions, and make sure you reclaim everything you're entitled to.
- Filed on time, every time — you receive confirmation of submission and a clear note of exactly what to pay HMRC and by when.
If HMRC ever opens a VAT enquiry or compliance visit, we deal with them on your behalf — we've been doing so for South East London businesses since 1991.
VAT Returns & Registration Near You in South East London
Bayar Hughes & Co has served clients since 1991 from Green Lane Business Park in New Eltham (SE9), a short walk from New Eltham station. We work with individuals and businesses across Eltham, Mottingham, Sidcup, Chislehurst, Bromley, Bexley, Greenwich, Lewisham, Blackheath and Woolwich — and as online accountants for clients throughout London and the UK.
Frequently Asked Questions
What is the VAT registration threshold in the UK?
The VAT registration threshold is £90,000 of taxable turnover in any rolling 12-month period, in force since April 2024. You must also register if you expect to exceed £90,000 in the next 30 days alone. The deregistration threshold is £88,000. The test is a rolling 12 months, not your accounting year, so it needs monitoring continuously.
When are VAT returns due?
For most businesses, VAT returns are due one calendar month and seven days after the end of each VAT quarter, and any VAT owed must reach HMRC by the same date. For example, a quarter ending 31 March must be filed and paid by 7 May. Businesses on the Annual Accounting Scheme file once a year instead.
What happens if I file a VAT return late?
HMRC operates a points-based penalty system. Each late VAT return earns a penalty point, and once a quarterly filer reaches four points they receive a £200 fine, with another £200 for every further late return until the points expire. Paying late is penalised separately, with escalating charges plus interest on the outstanding VAT.
Should I register for VAT voluntarily before reaching the threshold?
It can be worthwhile if most of your customers are VAT-registered businesses, because they reclaim the VAT you charge while you recover VAT on your own costs. It is usually less attractive if you sell mainly to the public, since a 20% price rise or margin cut hits directly. We review the numbers for your specific situation before recommending either route.
Do I need special software for VAT returns under Making Tax Digital?
Yes. Making Tax Digital for VAT applies to all VAT-registered businesses, so records must be kept digitally and returns submitted through MTD-compatible software such as Xero, QuickBooks or Sage — the old HMRC online form is no longer available for VAT. We set up the software, link it to HMRC and handle the filings for you.

