VAT Threshold 2025: When Do I Need to Register in the UK?

What is the VAT Threshold in 2025?

The UK VAT registration threshold is £90,000 as of April 2024, and will remain at this level throughout 2025 and until at least 31 March 2026. This means if your 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, making it the highest VAT registration threshold in the OECD alongside Switzerland—more than double the OECD average and higher than any EU member state.

When You MUST Register for VAT

HMRC requires you to register for VAT in two specific situations:

1. Retrospective Registration (12-Month Test)

You must register if, at the end of any month, your taxable turnover in the previous 12 months exceeds £90,000.

Example: In November 2025, you calculate your sales from December 2024 to November 2025. If this total is £92,000, you exceeded the threshold in November and must register within 30 days.

2. Prospective Registration (30-Day Test)

You must register immediately if, at any point, you have reasonable grounds to believe your taxable turnover will exceed £90,000 in the next 30 days alone.

Example: You win a £100,000 contract to be delivered in January 2026. Even if your annual turnover to date is only £40,000, you must register for VAT before invoicing this contract.

What Counts as Taxable Turnover?

Taxable turnover includes:

• All standard-rated sales (20% VAT)
• Reduced-rated sales (5% VAT)
• Zero-rated sales (0% VAT, such as most food and children's clothing)

Taxable turnover excludes:

• VAT-exempt sales (insurance, education, healthcare)
• Sales of capital assets (equipment, vehicles you've used in the business)
• Income outside the UK

Penalties for Late Registration

Failing to register on time can result in:

• Assessments for uncollected VAT – HMRC will calculate the VAT you should have charged customers
• Penalties – Ranging from 5% to 15% of the VAT due, depending on how late you are
• Interest charges – Applied to all unpaid VAT from the date it should have been paid

Even if you didn't charge VAT to customers because you weren't registered, you're still liable to pay HMRC the amount you should have collected.

When You Can Voluntarily Register for VAT

You can register for VAT even if your turnover is below £90,000. Voluntary registration makes sense when:

1. You Have High VAT-Able Expenses

If you purchase significant VAT-rated goods or services, voluntary registration allows you to reclaim input VAT. This is particularly beneficial for businesses that:

• Purchase inventory or materials with 20% VAT
• Invest heavily in equipment and capital expenditure
• Incur significant VAT on services (marketing, professional fees, software)

Example: A startup spends £30,000 on equipment and software in its first year but only generates £40,000 in revenue. By registering voluntarily, they can reclaim £6,000 in VAT (20% of £30,000).

2. Your Customers Are VAT-Registered Businesses (B2B)

If you primarily sell to other VAT-registered businesses, adding VAT to your invoices doesn't disadvantage you—your customers can reclaim it. This levels the playing field with larger competitors and can make your business appear more established.

3. You Want to Prepare for Future Growth

Voluntary registration before reaching the threshold allows you to:

• Familiarise yourself with VAT compliance requirements
• Build VAT into your pricing from the start
• Avoid sudden price increases when you're forced to register
• Implement Making Tax Digital systems before they're mandatory

4. Credibility and Professional Image

Being VAT-registered can enhance your business's credibility, signalling to clients and suppliers that you're an established, professional operation.

When Voluntary Registration Doesn't Make Sense

Avoid voluntary registration if:

• You primarily sell to consumers – Adding 20% VAT makes you less competitive
• Most expenses are VAT-exempt – Limited input VAT to reclaim (e.g., residential rent, insurance)
• Low VAT-able purchases – Administrative burden outweighs benefits
• You're operating on tight margins – The cash flow impact of paying VAT quarterly may strain finances

VAT Schemes: Choosing the Right One for Your Business

Once registered, you can choose from several VAT schemes. The right choice depends on your business model, turnover, and cash flow needs.

Standard VAT Accounting

How it works: You charge 20% VAT on all standard-rated sales, reclaim VAT on eligible business purchases, and submit quarterly VAT returns to HMRC.

Key point: You owe VAT to HMRC as soon as you issue an invoice, even if your customer hasn't paid you yet. This can create cash flow challenges for businesses with long payment terms.

Advantages:

• Accurate reclaim of input VAT—ideal if your business purchases significant VAT-able goods or services
• No turnover limits for remaining on the scheme
• Clear audit trail that eases compliance in case of HMRC queries
• Suitable as your business grows

Disadvantages:

• More complex record-keeping
• Cash flow pressure if customers pay late
• Quarterly return deadlines to manage

Flat Rate Scheme (FRS)

How it works: You charge 20% VAT to customers but pay HMRC a fixed percentage of your gross turnover (including VAT), typically between 4% and 16.5% depending on your industry.

Eligibility: Turnover under £150,000 in any rolling 12-month period. You can remain in the scheme until turnover exceeds £230,000.

Key difference: You keep the difference between the VAT you charge customers and the flat rate percentage you pay HMRC. However, you cannot reclaim input VAT on most purchases (except capital assets costing over £2,000 including VAT).

Advantages:

• Simplified accounting—no need to track input VAT on every purchase
• Potential to keep more VAT if your flat rate is lower than actual input VAT
• Cash-based accounting—only pay VAT on invoices you've actually been paid for
• First year discount: pay 1% less in your first year of VAT registration

Disadvantages:

• Can be more expensive if you have high VAT-able costs
• Cannot reclaim input VAT (except on capital assets over £2,000)
• Limited cost rate of 16.5% for "limited cost traders" (businesses spending less than 2% of turnover on goods, or between 2%-£1,000 per year)

Best for: Service-based businesses, consultants, freelancers, and businesses with low material costs.

Example: A graphic designer with £100,000 turnover uses the 14.5% flat rate for their industry. They charge clients £120,000 (£100,000 + £20,000 VAT), but only pay HMRC £17,400 (14.5% of £120,000), keeping £2,600.

Cash Accounting Scheme

How it works: You account for VAT based on when you receive payment from customers and when you pay suppliers—not when invoices are issued.

Eligibility: VAT taxable turnover of £1.35 million or less. You can remain in the scheme until turnover exceeds £1.6 million.

Advantages:

• Cash flow friendly – Only pay VAT to HMRC once customers have paid you
• Protection against bad debts – If a customer never pays, you don't owe VAT on that invoice
• Easier budgeting – Outgoings and incoming VAT are more closely aligned
• Can be combined with Standard VAT or Annual Accounting (but not Flat Rate Scheme)

Disadvantages:

• Slower VAT reclaim – You can only reclaim input VAT once you've paid suppliers
• More complex if you have a mix of cash and credit transactions
• Must keep careful records of when payments are received and made

Best for: Businesses with extended payment terms, B2B companies dealing with 30-60 day invoices, or any business concerned about bad debts.

How to Register for VAT Online with HMRC

Registering for VAT is straightforward and must be done online through HMRC.

VAT Registration Checklist

Before you start, gather the following information:

Business details:

• Business name and trading name (if different)
• Business address and contact details
• Company Registration Number (if limited company)
• Unique Taxpayer Reference (UTR) if you're already registered for Self Assessment

Financial information:

• Date you exceeded (or will exceed) the VAT threshold
• Estimated turnover for the next 12 months
• Business bank account details for VAT repayments
• Details of business activities and sector

VAT scheme preference:

• Which VAT scheme you want to use (Standard, Flat Rate, Cash Accounting, or Annual Accounting)
• If using Flat Rate Scheme, confirm your industry category for the correct percentage

Step-by-Step Registration Process

1. Sign in to HMRC online services using your Government Gateway user ID and password. If you don't have one, you'll need to create an account.

2. Access VAT registration through the VAT Registration Service. The form is called VAT1.

3. Provide business information:

   • Business type (sole trader, partnership, limited company)
   • Nature of business activities
   • Date business started trading
   • Date VAT registration is required from

4. Enter financial details:

   • Expected turnover for the next 12 months
   • Estimated VAT you'll reclaim quarterly
   • Bank details for repayments

5. Choose your VAT scheme and accounting period preferences (usually quarterly).

6. Select contact preferences for how HMRC should communicate with you.

7. Review and submit your application.

After Registration

• VAT registration number – HMRC will send your VAT number (9 digits) within 30 days, usually within 2-3 weeks
• Effective date – Usually the date you were required to register, not the date you submitted the application
• First VAT return – Due approximately 1 month and 7 days after the end of your first VAT period
• Making Tax Digital – New VAT registrations are automatically enrolled in MTD for VAT

Important: You can start reclaiming VAT on purchases made up to 4 years before your registration date, provided the goods or services are still being used in the business.

Making Tax Digital for VAT: What You Need to Know

Making Tax Digital (MTD) for VAT has been mandatory for all VAT-registered businesses since April 2022, regardless of turnover. See our MTD compliance checklist for everything you need to know.

Core Requirements

All VAT-registered businesses must:

1. Keep digital records – Maintain VAT records digitally using compatible software
2. Use MTD-compatible software – You cannot submit VAT returns through the HMRC portal anymore
3. Maintain digital links – If you use multiple software products, they must connect digitally (no manual data transfer)
4. Submit returns digitally – File quarterly (or monthly) VAT returns through approved software

What Software Qualifies?

HMRC maintains a list of MTD-compatible software providers. Options include:

• Full accounting software – Xero, QuickBooks, Sage, FreeAgent
• Bridging software – Connects spreadsheets to HMRC (for businesses preferring Excel)
• HMRC's own free software – Limited functionality for simple businesses
• AccountsOS – AI-powered accounting that handles VAT tracking, categorisation, and MTD submissions automatically. Use our VAT calculator to estimate your liability

Digital Record-Keeping

You can use spreadsheets as part of your MTD compliance, but:

• A standalone spreadsheet cannot submit returns—you need bridging software
• If using multiple spreadsheets or software, they must link digitally
• Manual copying of data between systems is not compliant

Automatic Enrolment

Good news: If you register for VAT through the VAT Registration Service, HMRC automatically enrols you in Making Tax Digital for VAT. You don't need to sign up separately.

Penalties for Non-Compliance

HMRC issues penalty points for late VAT returns or failing to follow MTD rules:

• Quarterly filers: 4 points = £200 penalty, plus £200 for each subsequent late return
• Monthly filers: 5 points before financial penalties apply
• Annual filers: 2 points before financial penalties

Interest and surcharges also apply to late VAT payments, separate from late filing penalties.

Exemptions

Very few businesses qualify for MTD exemptions. You may apply if:

• You're digitally excluded due to age, disability, or remote location
• Your religious beliefs prevent you from using digital systems
• You're subject to an insolvency procedure

Exemptions must be approved by HMRC before your first submission deadline.

How AccountsOS Tracks Your Turnover Automatically

One of the biggest challenges for growing businesses is knowing when you're approaching the VAT threshold. Many business owners only realise they've exceeded £90,000 when it's too late—resulting in penalties and retrospective VAT bills.

Real-Time Turnover Tracking

AccountsOS monitors your taxable turnover in real-time, providing:

• Rolling 12-month calculations – Automatically tracks whether you've exceeded £90,000 in any trailing 12-month period
• Threshold alerts – Notifies you when you're approaching the £85,000 mark (giving you time to prepare)
• Projected turnover – Forecasts when you're likely to exceed the threshold based on current growth
• Taxable vs. exempt classification – Correctly categorises income to ensure accurate threshold calculations

Seamless VAT Compliance

Once you're VAT-registered, AccountsOS simplifies compliance:

• Automatic VAT categorisation – AI categorises every transaction with the correct VAT rate
• Real-time VAT tracking – See at a glance how much you owe or are owed by HMRC
• MTD-compliant submissions – File VAT returns directly to HMRC with one click
• Digital record-keeping – All records maintained digitally with full audit trails
• VAT scheme optimisation – Analyse which VAT scheme would save you the most money

Example: Avoiding Late Registration

Sarah runs a consulting business. In October 2025, her AccountsOS dashboard shows:

• Turnover for the past 12 months: £87,500
• Projected turnover for next 3 months: £15,000
• Alert: "You're likely to exceed the VAT threshold in December 2025. Register before 31 January 2026."

AccountsOS reminds Sarah again in November, and she registers in December—30 days before exceeding the threshold. She avoids penalties and has time to adjust her pricing strategy.

AI-Powered VAT Guidance

AccountsOS doesn't just track numbers—it provides context:

• Plain English explanations – Ask "Do I need to register for VAT?" and get a clear answer based on your data
• Scenario planning – See how voluntary registration would impact your cash flow
• Scheme comparisons – Calculate which VAT scheme saves you the most money
• Deadline reminders – Never miss a VAT return or payment deadline

VAT Deregistration: When You Can Leave the Scheme

Just as there's a registration threshold, there's also a deregistration threshold.

When You Can Deregister

You can apply to deregister for VAT if:

• Your taxable turnover in the next 12 months will be £88,000 or less
• You stop making taxable supplies (e.g., close the business or switch to exempt supplies)
• You join a VAT group

The Deregistration Process

Contact HMRC to deregister by:

• Phoning the VAT Helpline: 0300 200 3700
• Writing to: HMRC VAT Registration Service, Crown House, Birch Street, Wolverhampton, WV1 4JX
• Using your HMRC online account

Important Considerations

Before deregistering, consider:

• Final VAT return – You must submit a return covering the period up to your deregistration date
• Capital assets – You may owe VAT on business assets you keep (e.g., equipment, vehicles, trading stock)
• Credibility impact – Some B2B clients prefer working with VAT-registered suppliers
• Future growth – If you expect to exceed the threshold again soon, the admin burden of re-registering may outweigh the benefits

Frequently Asked Questions

What happens if I exceed the VAT threshold temporarily?

If your turnover exceeds £90,000 in a rolling 12-month period, you must register for VAT—even if it's a one-off spike. However, if you can demonstrate to HMRC that it was genuinely temporary and your turnover will fall below the threshold in the next 12 months, you may be able to apply for an exception.

Example: A retailer has a £95,000 turnover due to a one-time Christmas boost, but expects £70,000 for the following year. They should still register but can request exception approval from HMRC.

Can I backdate my VAT registration to reclaim VAT on startup costs?

Yes. You can reclaim VAT on goods purchased up to 4 years before registration and services purchased up to 6 months before registration, provided:

• The goods or services are still being used in the business
• You have valid VAT invoices
• The purchases were for business purposes

This is particularly valuable for startups with significant setup costs.

Do I charge VAT between exceeding the threshold and receiving my VAT number?

Yes. Once you exceed the threshold (or 30 days before the date you know you will exceed it), you must charge VAT on all taxable supplies—even if HMRC hasn't issued your VAT number yet.

You can include "VAT registration pending" on invoices and update them with your number once received. Alternatively, wait to invoice until you have your VAT number, but ensure you register on time.

What's the difference between standard-rated, zero-rated, and exempt supplies?

• Standard-rated (20%): Most goods and services
• Reduced-rated (5%): Energy-saving materials, children's car seats, mobility aids
• Zero-rated (0%): Food (excluding hot food, alcohol), books, children's clothes, public transport
• Exempt: Insurance, education, healthcare, residential rent

Key difference for VAT registration: Zero-rated supplies count towards the £90,000 threshold; exempt supplies don't. You can reclaim input VAT if you make zero-rated supplies, but not if you only make exempt supplies.

Can I use the Flat Rate Scheme if I'm also registered for MTD?

Yes. The Flat Rate Scheme is fully compatible with Making Tax Digital for VAT. You'll still need MTD-compatible software to submit returns, but the FRS simplifies the calculations within that software.

How does VAT work if I sell both goods and services?

The VAT treatment depends on what you're selling:

• Goods: Usually standard-rated at 20% (unless zero-rated or exempt)
• Services: Usually standard-rated at 20% (unless zero-rated or exempt)

You can sell a mix of goods and services under a single VAT registration. If you use the Flat Rate Scheme, there's a specific percentage for your primary industry—if you have mixed activities, use the category that best represents your main business.

What if I make a mistake on my VAT return?

If you discover an error:

Small errors (under £10,000 and less than 1% of turnover): Correct it on your next VAT return in Box 1 (output VAT) or Box 4 (input VAT).

Large errors: Report them to HMRC in writing or by phoning the VAT Helpline. You may need to submit a VAT 652 form (Notification of Errors in VAT Returns).

If the error is in HMRC's favour (you underpaid), pay the amount owed immediately to minimise interest. If it's in your favour (you overpaid), HMRC will repay you with interest.

Can I register for VAT before I start trading?

Yes. You can register up to 4 months before you start making taxable supplies. This allows you to reclaim VAT on startup costs and have everything in place before launching.

Do I need separate VAT registrations for multiple businesses?

It depends on your business structure:

• Sole trader: You register as an individual. All your sole trader businesses are covered by one VAT registration, and turnover from all is combined for the £90,000 threshold.
• Limited companies: Each company is a separate legal entity and needs its own VAT registration (unless part of a VAT group).
• Partnerships: The partnership registers for VAT, not the individual partners.

How long does it take to get my VAT number?

HMRC aims to issue VAT numbers within 30 days of your application. In practice, straightforward applications are usually processed in 2-3 weeks. Complex applications (e.g., non-resident businesses, VAT groups) may take longer.

You can start charging VAT as soon as you submit your registration—you don't need to wait for your VAT number, though it's easier to invoice with it.

Key Takeaways

• The VAT registration threshold is £90,000 in any rolling 12-month period, effective from April 2024 and continuing through 2025 and 2026.
• Register within 30 days of exceeding the threshold to avoid penalties, interest, and retrospective VAT bills.
• Voluntary registration makes sense if you have high VAT-able expenses, sell primarily to VAT-registered businesses, or want to prepare for future growth.
• Choose the right VAT scheme: Standard for flexibility and high input VAT, Flat Rate for simplicity with low expenses, or Cash Accounting for cash flow protection.
• Making Tax Digital is mandatory for all VAT-registered businesses—ensure you use MTD-compatible software from day one.
• Track your turnover proactively to avoid accidentally exceeding the threshold. Tools like AccountsOS automate this monitoring and alert you in advance.
• Consider deregistration if your turnover drops below £88,000 and is expected to stay there, but weigh the administrative and credibility costs.

VAT registration is a significant milestone for any growing business. With proper planning, the right scheme, and automated tools, you can navigate VAT compliance smoothly while maximising cash flow and minimising administrative burden.

Need help tracking your VAT turnover? AccountsOS monitors your taxable income in real-time, alerts you before you hit the threshold, and handles all your VAT compliance automatically. See how it works and our pricing, then start your free trial today and never worry about VAT deadlines again.