VAT Registration Threshold + Process (2026-27)

If your UK business's taxable turnover exceeds £90,000 in any rolling 12-month period, you must register for VAT with HMRC. This threshold increased from £85,000 on 1 April 2024. You must also register if you reasonably expect to exceed £90,000 in the next 30 days alone. Once registered, you'll charge VAT on most sales (typically 20%), submit quarterly returns through Making Tax Digital (MTD) compatible software, and can reclaim VAT on business purchases. Voluntary registration is possible even if you're below the threshold, which can be beneficial if your customers are VAT-registered or you have significant VAT costs. This guide explains when you must register, how the process works, and what happens once you're in the VAT system.

When You Must Register for VAT

The £90,000 Threshold

The compulsory VAT registration threshold for 2026-27 is £90,000 of taxable turnover in any rolling 12-month period [VATA 1994 Sch 1]. This means you look back over the previous 12 months on a rolling basis—not just the tax year or calendar year.

Example: Marcus runs a graphic design business. His monthly turnover has been:

• Jan–Oct 2026: £6,000/month = £60,000
• Nov 2026: £15,000
• Dec 2026: £18,000

At the end of December 2026, his rolling 12-month turnover is £93,000 (£60,000 + £15,000 + £18,000). He has exceeded the threshold and must notify HMRC within 30 days—by 30 January 2027.

The 30-Day Forward Test

You must also register if, at any point, you have reasonable grounds to believe your taxable turnover will exceed £90,000 in the next 30 days alone [VATA 1994 Sch 1 para 1(1)(b)].

Example: Aisha's catering business normally turns over £40,000 a year. She wins a one-off corporate contract worth £95,000, to be delivered in February 2027. Even though her historic turnover is well below £90,000, she must register for VAT before she invoices that contract, because she reasonably expects to exceed the threshold in the next 30 days.

What Counts as "Taxable Turnover"

Taxable turnover includes all supplies that are:

• Standard-rated (20%)
• Reduced-rated (5%)
• Zero-rated (0%)

It does not include:

• Exempt supplies (such as most insurance, finance, education, health services)
• Out-of-scope supplies (wages you pay yourself, sale of capital assets in some cases)

Example: Dr. Patel runs a private physiotherapy clinic (exempt) and also sells sports equipment online (standard-rated). Only the equipment sales count toward the £90,000 threshold. If those sales exceed £90,000, he must register, even though his physio income is exempt and won't have VAT charged on it.

Voluntary Registration

You can register for VAT even if your turnover is below £90,000. This is called voluntary registration.

Why Register Voluntarily?

1. Reclaim input VAT: If you have significant business costs with VAT on them (equipment, stock, services), you can reclaim that VAT. If you're not registered, you absorb those costs.

2. Business credibility: Some customers prefer dealing with VAT-registered suppliers, seeing it as a mark of a "proper" business.

3. B2B customers: If your customers are VAT-registered, they can reclaim the VAT you charge them, so your prices aren't really 20% higher to them.

Example: Liam starts a web development business. His turnover in year one is £35,000, but he spends £12,000 + VAT (£14,400 total) on a new laptop, software subscriptions, and office equipment. If he registers for VAT voluntarily, he can reclaim the £2,400 VAT on those purchases. His sales will now include VAT, but if his clients are businesses, they reclaim it anyway.

Downsides of Voluntary Registration

• Administrative burden: Quarterly VAT returns, MTD software costs, record-keeping.
• Cash flow: You collect VAT from customers but may have to pay it to HMRC before your customers pay you.
• Consumer customers: If you sell to the public (B2C), adding 20% VAT makes you less competitive unless you absorb it in your prices.

The Deregistration Threshold

If your turnover falls, you can deregister when your taxable turnover drops below £88,000 [VATA 1994 Sch 1 para 13]. You must reasonably expect it to stay below that level. You can also deregister if you stop making taxable supplies altogether (e.g., you close the business or switch entirely to exempt supplies).

Example: Fatima's online shop was turning over £95,000 in 2025, so she registered for VAT. In 2026, sales drop to £70,000 and she expects them to remain around that level. She can apply to deregister. HMRC may require her to account for VAT on any stock and assets she holds at deregistration (as if she sold them), but often this is minimal for small businesses.

How to Register for VAT

The Registration Process

1. Notify HMRC within 30 days of exceeding the threshold (or before you exceed it on the forward test).
2. Register online at gov.uk. You'll need:
   • Your business details (name, address, trade classification)
   • Your turnover figures
   • Bank account details
   • National Insurance number or UTR
   • Details of business partners/directors if applicable
3. Choose your VAT scheme (see below).
4. Sign up for Making Tax Digital (MTD) for VAT at the same time or immediately after. All VAT-registered businesses must use MTD-compatible software to keep records and submit returns [SI 2021/1072].

HMRC will send you:

• A VAT registration number (9 digits, format: GB123456789)
• Your effective date of registration
• Information on your first VAT return period

Effective Date of Registration

• If you register within 30 days of breaching the threshold, your effective date is usually the day after the end of the month in which you exceeded £90,000.
• If you register late, HMRC may backdate your registration, and you could owe VAT on sales you've already made without charging it—plus potential penalties.

Example: Theo's rolling turnover hit £91,000 on 15 March 2027. He notifies HMRC on 5 April (within 30 days). His effective registration date will be 1 April 2027. He must charge VAT on all taxable supplies from that date onward.

VAT Schemes: Choosing the Right One

When you register, you can choose from several VAT schemes. The default is the standard VAT accounting scheme, but alternatives may save you time or money.

Standard VAT Accounting

• Charge VAT on all taxable sales.
• Reclaim VAT on all allowable business purchases (input VAT).
• Submit a return each quarter showing VAT collected minus VAT paid, and pay the difference to HMRC (or claim a refund if you've paid more than you collected).

Flat Rate Scheme (FRS)

• Available if turnover ≤ £150,000 (excluding VAT).
• You charge VAT as normal but pay HMRC a fixed percentage of your gross (VAT-inclusive) turnover, based on your business type.
• You cannot reclaim input VAT on purchases (except certain capital assets over £2,000).
• Simpler accounting; can be cheaper if you have low costs.

Example: Priya is a business consultant (FRS rate 14.5%). She invoices £10,000 + £2,000 VAT = £12,000. Under FRS, she pays HMRC 14.5% × £12,000 = £1,740. She keeps £260 (the difference between the £2,000 VAT she charged and the £1,740 she pays). She cannot reclaim VAT on her laptop or train fares.

Cash Accounting Scheme

• Available if turnover ≤ £1.35 million.
• You account for VAT when you actually receive payment (not when you invoice).
• Helps cash flow: you don't owe HMRC VAT on unpaid invoices.

Annual Accounting Scheme

• Available if turnover ≤ £1.35 million.
• Submit one VAT return per year instead of four.
• Make interim payments (monthly or quarterly) based on last year's liability.
• Reduces admin but less flexibility if turnover fluctuates.

You can combine some schemes (e.g., Cash Accounting + Annual Accounting), but not FRS with standard input VAT reclaims.

What Happens Once You're Registered

Charging VAT

You must add VAT to your invoices for taxable supplies:

• Standard rate: 20% (most goods and services)
• Reduced rate: 5% (domestic fuel, children's car seats, some energy-saving materials)
• Zero rate: 0% (most food, books, children's clothes, public transport)

Your invoices must show:

• Your VAT number
• A unique invoice number
• The VAT amount (or "No VAT" if zero-rated)

Reclaiming Input VAT

You can reclaim VAT on:

• Stock and raw materials
• Business equipment and services (computers, software, accountancy, marketing)
• Business mileage (fuel, but complex rules apply)

You cannot reclaim VAT on:

• Business entertainment (except for staff)
• Non-business purchases
• Purchases for exempt supplies

Example: Nadia runs a VAT-registered bakery. She buys flour (zero-rated, no VAT to reclaim), an oven for £3,000 + £600 VAT (she reclaims the £600), and takes a client to lunch for £80 + £16 VAT (she cannot reclaim the £16).

Making Tax Digital (MTD) for VAT

All VAT-registered businesses must use MTD-compatible software to:

• Keep digital VAT records
• Submit VAT returns directly to HMRC

You cannot submit paper returns or use HMRC's online portal (except in very limited circumstances, such as insolvency or religious objection).

MTD software options include:

• Dedicated packages (Xero, QuickBooks, Sage, FreeAgent)
• HMRC's own basic free software (for businesses with simple needs)
• Bridging software that links spreadsheets to HMRC

Submitting VAT Returns

• Quarterly returns are standard (some schemes allow annual).
• Deadline: one calendar month and seven days after the end of each quarter.
• Payment deadline: same date.

Example: Your VAT quarter ends 31 March 2027. Your return and payment are due by 7 May 2027.

Late returns or payments incur penalties and interest.

Common Mistakes

1. Monitoring turnover annually, not rolling: The £90,000 threshold applies to any rolling 12-month period, not the tax year. Check your turnover monthly.

2. Ignoring the 30-day forward test: If you land a big contract, you may need to register immediately, even if historic turnover is low.

3. Counting exempt income: Only taxable supplies count. Don't register unnecessarily because you've included exempt income in your figures.

4. Registering late: Missing the 30-day notification window can mean backdated VAT bills and penalties. Set a reminder to review turnover monthly.

5. Not using MTD software: Paper returns are no longer accepted. Budget for software costs (from free to £30+/month).

6. Choosing the wrong scheme: The Flat Rate Scheme sounds simple but can cost you money if you have high input VAT. Run the numbers or get advice.

7. Forgetting to charge VAT: Once registered, you must charge VAT from your effective date. If you forget, you still owe HMRC the VAT, but you can't easily go back and collect it from customers.

8. Mixing up zero-rated and exempt: Zero-rated supplies count toward the threshold and you can reclaim input VAT. Exempt supplies don't count, and you can't reclaim related input VAT.

What to Do Next

If you're approaching the threshold:

• Check your rolling 12-month turnover monthly.
• Set a reminder to register as soon as you cross £90,000 (or expect to).
• Research VAT schemes to see which suits your business.
• Budget for MTD software and the admin time VAT requires.

If you've already exceeded the threshold:

• Register immediately at gov.uk/vat-registration.
• Don't wait—late registration can be costly.

If you're considering voluntary registration:

• Calculate whether you'll reclaim more input VAT than the admin hassle costs.
• Consider your customer base (B2B vs B2C).

Need specific advice?

• Use the AI Tax chat at myaitax.info for quick questions about your situation (e.g., "Does my Etsy income count toward the threshold?").
• For full registration support, VAT scheme selection, and ongoing compliance, book AI Accountant for end-to-end handling—software setup, return filing, and planning to minimise your VAT bill legally.

VAT registration is a significant step for any business, but with the right preparation and tools, it's manageable. The key is to monitor your turnover, register on time, and choose the scheme and software that fit your business model. Once you're in the system, VAT becomes a routine part of your quarterly admin—and the ability to reclaim input VAT can actually improve your cash flow if you have significant business costs.