UK VAT Explained: Registration, Schemes, Rates and Deadlines (2026/27 Guide)

If you run a UK business, VAT is one of the first taxes you'll bump into as you grow, and one of the easiest to get wrong. This guide covers everything from "do I even need to register?" through to which scheme actually saves you money.

What is VAT?

VAT (Value Added Tax) is a tax charged on most goods and services sold in the UK. If your business is VAT-registered, you charge VAT on your sales (output VAT) and can usually reclaim the VAT you pay on business purchases (input VAT). The difference between the two is what you pay to, or reclaim from, HMRC.

Current VAT rates:

• Standard rate: 20%, applies to most goods and services
• Reduced rate: 5%, applies to specific items (e.g. home energy, children's car seats)
• Zero rate: 0%, applies to specific items (e.g. most food, books, children's clothing). These are still taxable and count toward your turnover for registration purposes, they're just charged at 0%
• Exempt, some supplies (e.g. insurance, finance, education) are outside the VAT system entirely and don't count toward your registration threshold

Do I need to register for VAT?

The current VAT registration threshold is £90,000.

You must register for VAT if:

• Your taxable turnover exceeds £90,000 in any rolling 12-month period (not just your accounting year, HMRC looks at a continuously moving 12-month window), or
• You expect your turnover to exceed £90,000 in the next 30 days alone

You must register within 30 days of the end of the month in which you crossed the threshold.

Voluntary registration: you can register even if you're below £90,000. This is often worth considering if:

• Most of your customers are VAT-registered businesses who can reclaim the VAT you charge them (so it costs them nothing extra)
• You have significant VAT on purchases or setup costs you'd like to reclaim
• You want to appear more established to clients

Deregistration threshold: £88,000. If your taxable turnover falls below this, you can apply to deregister, but it's not automatic, and there are timing considerations worth discussing with an accountant before doing so.

Late registration penalties

If you register late, HMRC backdates your VAT liability to the date you should have registered, meaning you may owe VAT on sales where you never charged your customers VAT at the time. On top of that, HMRC charges a penalty based on how late you register:

• 5% if up to 9 months late
• 10% if 9 to 18 months late
• 15% if more than 18 months late
• Minimum penalty: £50

This is one of the most common, and most expensive, mistakes we see growing businesses make. If you're approaching £90,000 in turnover, it's worth tracking your rolling 12-month position monthly, not just at year-end.

Choosing the right VAT scheme

Not every VAT-registered business uses the same method to calculate what they owe. Picking the right scheme can genuinely change your cash flow and admin burden.

Standard VAT Accounting

The default scheme. You record VAT on every sale and purchase, and pay HMRC the difference each quarter. Full input VAT reclaim on business purchases.

Best for: businesses with significant input VAT to reclaim (e.g. buying a lot of stock or equipment), or where invoices are usually paid promptly.

Flat Rate Scheme (FRS)

Instead of tracking VAT on every transaction, you pay a fixed percentage of your gross (VAT-inclusive) turnover to HMRC. The percentage depends on your industry, for example, IT consultants might pay around 14.5%, while catering businesses might pay around 12.5%. You generally can't reclaim input VAT on individual purchases under this scheme, with limited exceptions for capital assets over £2,000.

• Eligibility: expected taxable turnover of £150,000 or less (excluding VAT)
• Important catch, the "limited cost trader" rule: if your VAT-inclusive purchases of goods are less than 2% of your VAT-inclusive turnover, or less than £1,000 a year, you're classed as a limited cost trader and must use a flat rate of 16.5% instead of your industry rate. This often removes any benefit of the scheme for service-based businesses with low overheads, a common trap for consultants, freelancers, and contractors.

Best for: businesses with low overheads relative to turnover, where the simplified admin outweighs the reduced reclaim, but always worth running the numbers first, since the limited cost trader rate can make it worse than standard accounting.

Cash Accounting Scheme

You account for VAT based on when you're actually paid, not when you invoice, helpful for cash flow if your customers are slow payers.

• Eligibility: taxable turnover of £1.35 million or less

Best for: businesses with a gap between invoicing and getting paid, or clients who take a while to settle.

Marginal (Margin) Scheme

Used mainly by businesses selling second-hand goods, antiques, or art, VAT is charged only on the margin (the difference between what you paid for an item and what you sold it for), not the full sale price.

Best for: second-hand car dealers, antique dealers, and similar resale businesses.

Making Tax Digital (MTD) for VAT

MTD for VAT is no longer optional for any VAT-registered business, it's mandatory across the board. This means:

• You must keep VAT records digitally (not on paper or in a plain spreadsheet without bridging software)
• You must submit VAT returns using HMRC-recognised MTD-compatible software (e.g. Xero, QuickBooks, FreeAgent, Sage)

If you're still filing manually or using non-compatible spreadsheets, you're not currently compliant, this is one of the most common gaps we find when onboarding new clients. MTD is also on its way for Income Tax: if you're a sole trader or landlord, see our Self Assessment and MTD ITSA guide for how the same digital-records approach applies to your income tax.

VAT return deadlines and late payment penalties

Most businesses file VAT returns quarterly. Your return and payment are typically due 1 month and 7 days after the end of your VAT period.

Late payment penalties (this system changed in recent years to a points-based model):

• A first late payment incurs 3% of the VAT owing if still unpaid at day 15, a further 3% at day 30
• After that, interest accrues daily at 10% per year on the outstanding amount
• Late filing (separate from late payment) adds a penalty point. Hitting a points threshold (4 points for quarterly filers) triggers a £200 penalty, with a further £200 for each subsequent late submission

How Books & Returns helps

Getting VAT right isn't just about avoiding penalties, choosing the right scheme can genuinely save your business money, and getting your registration timing wrong can create an unexpected tax bill. We handle VAT registration, deregistration, scheme selection, quarterly returns, and MTD compliance for our clients, so you never have to track a threshold or a deadline yourself.

This guide is for general information only and does not constitute tax advice. VAT rules can be complex and depend on your specific circumstances, always confirm your position with a qualified accountant or check current guidance at gov.uk before making decisions based on this content.