Guide · Tax
VAT in the UK: A Plain-English Guide for Small Businesses
Value Added Tax is one of the first taxes that catches growing small businesses by surprise. Once your turnover hits £90,000 you must register, charge VAT to customers, reclaim it on purchases, and file quarterly returns. Getting it right protects your cash flow; getting it wrong triggers penalties. Here is what you need to know.
VAT rates and the registration threshold
The UK has three VAT rates. Standard rate (20%) applies to most goods and services. Reduced rate (5%) covers domestic fuel and power, children's car seats, mobility aids, and some energy-saving products. Zero rate (0%) applies to most food and drink (excluding meals out and hot takeaway food), children's clothing, books, newspapers, and public transport. Zero-rated is not the same as exempt — you can reclaim input VAT on costs associated with zero-rated sales; you cannot on exempt ones.
If your taxable turnover drops below £88,000, you can apply to deregister for VAT. The threshold is intentionally lower than the registration trigger to create a small buffer and prevent businesses from constantly registering and deregistering around the £90,000 line.
How VAT actually flows through your business
VAT is a pass-through tax. You collect it from customers (output VAT), deduct the VAT you paid on business purchases (input VAT), and pay the net amount to HMRC. The business is not ultimately bearing the cost — the end consumer is. But managing the cash flow timing matters, since you must pay over VAT to HMRC before your customers may have paid you.
| Item | Amount |
|---|---|
| Net fee charged to client | £1,000 |
| VAT charged at 20% (output VAT) | £200 |
| Total invoice to client | £1,200 |
| VAT on business purchases (input VAT) | £75 |
| Net VAT payable to HMRC | £125 |
The VAT Account (sometimes called the VAT control account) records output and input VAT separately throughout the quarter. At the end of each VAT period, you submit a return via Making Tax Digital software and pay or receive the net balance. Most businesses file quarterly, though monthly returns are available for businesses that regularly receive VAT refunds.
The Flat Rate Scheme: simpler accounting, potential saving
For businesses with VAT-inclusive turnover under £150,000, the Flat Rate Scheme (FRS) replaces the standard input/output calculation with a single percentage of gross turnover. You still charge customers 20% VAT, but instead of tracking every purchase receipt, you pay HMRC a fixed sector rate on your total gross income.
| Metric | Standard VAT | Flat Rate Scheme (14%) |
|---|---|---|
| Gross income (inc. VAT) | £12,000 | £12,000 |
| Output VAT collected (20%) | £2,000 | — |
| Input VAT reclaimed (est.) | £300 | — |
| FRS payment (14% of £12,000) | — | £1,680 |
| Net paid to HMRC | £1,700 | £1,680 |
| Effective saving vs standard | — | £20 (this example) |
The FRS benefit is largest for service businesses with very low input costs (few VATable purchases). A management consultant buying little beyond software and mobile data could keep a meaningful portion of the difference between the 20% they charge and their sector rate. Conversely, a business that buys a lot of standard-rated materials may be better off on standard VAT to recover more input tax.
Making Tax Digital and quarterly obligations
Making Tax Digital for VAT (MTD for VAT) has been mandatory for all VAT-registered businesses since April 2022. This means you must keep digital VAT records and file returns using MTD-compatible software — manual spreadsheet submissions are not sufficient unless the spreadsheet links digitally to an MTD-approved bridging solution.
VAT returns are typically due one month and seven days after the end of each VAT quarter. Penalties under the new points-based system apply for late submission: four points leads to a £200 fine, with further £200 penalties for each subsequent late filing while you remain at four points. Separate late payment penalties apply based on how far past the deadline payment is received.
Frequently asked questions
Do I have to register for VAT?
You must register for VAT if your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period (as of April 2024). You must also register if you expect to exceed that threshold in the next 30 days alone. Registration is mandatory within 30 days of crossing the threshold. Voluntary registration is available at any level of turnover and can be worthwhile if your customers are VAT-registered (they reclaim the VAT anyway) or if you have significant VAT on business purchases to reclaim.
Can I reclaim VAT on business purchases?
Yes. Once VAT-registered, you can reclaim VAT paid on most business purchases — known as input tax. There are important exceptions: you cannot reclaim VAT on cars (unless used exclusively for business and not available for private use), most business entertainment costs, or purchases used partly for non-business purposes (where you can only reclaim the business proportion). Input VAT is offset against the output VAT you collected from customers, and the net amount is paid to or refunded by HMRC quarterly.
What is the Flat Rate Scheme?
The Flat Rate Scheme (FRS) simplifies VAT accounting for businesses with VAT-inclusive turnover under £150,000. Instead of tracking input and output VAT separately, you pay a fixed percentage of your gross (VAT-inclusive) turnover directly to HMRC. The percentage varies by sector — for example, consultants pay 14%, IT contractors 14.5%, and caterers 12.5%. The benefit is that you charge customers 20% VAT but pay HMRC the lower sector rate, keeping the difference as a saving. However, you cannot reclaim input VAT separately under the FRS, so businesses with high purchase costs may be better off on standard VAT.
What are zero-rated and exempt supplies?
Zero-rated supplies are VAT-taxable at 0% — you charge no VAT but can still reclaim input VAT on related costs. Examples include most food and drink (excluding restaurant meals and snacks), children's clothing and footwear, books and newspapers, and public transport. Exempt supplies are different: no VAT is charged and you cannot reclaim input VAT on costs related to them. Exempt categories include financial services, insurance, and most residential property. If your business makes a mix of taxable and exempt supplies, partial exemption rules apply and the calculations become more complex.