When must I register for VAT in the UK?

Mandatory registration is required if your taxable turnover exceeds £90,000 in any rolling 12-month period (the 2026/27 threshold). You must register within 30 days of exceeding the threshold. Voluntary registration is permitted below £90,000 if it benefits your business - particularly if you have significant input VAT to reclaim or all your customers are themselves VAT-registered.

Is the Flat Rate Scheme always cheaper than Standard?

No - it depends on your input VAT. FRS is simpler but you cannot reclaim input VAT (with an over-£2,000 capital exception). For a business with low input VAT (pure services), FRS at 9-14% can save admin and money. For a business with substantial input VAT (retail, construction), Standard usually wins. The Limited Cost Trader rule at 16.5% eliminates the FRS advantage for most service businesses with minimal costs.

Can I combine VAT schemes?

Yes in some cases. Cash Accounting can be combined with Annual Accounting. FRS can be combined with Annual Accounting. Cash Accounting cannot be combined with FRS (FRS already has its own simplified payment timing). All combinations subject to eligibility thresholds (£150k for FRS, £1.35m for the others).

UK VAT schemes explained - 2026/27

Last reviewed by the UK Tax Drag editorial team · 12 May 2026 · How we review · Next review due 12 November 2026 · See what changed · Report an error

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UK businesses with taxable turnover above £90,000 must register for VAT. Four scheme options: Standard scheme (full input/output VAT reconciliation, quarterly returns); Flat Rate Scheme (single percentage of gross turnover, simpler but less efficient if you have substantial input VAT); Cash Accounting Scheme (account for VAT when payment is received/made, not invoice date - helps cash flow); Annual Accounting Scheme (one annual return + monthly/quarterly payments on account). Schemes are combinable in some cases.

The four UK VAT schemes - one-page comparison

Scheme	How it works	Turnover limit (entry)	Best for
Standard	Charge 20% on sales, reclaim 20% on purchases, pay net difference quarterly	None (mandatory above £90k)	Businesses with significant input VAT
Flat Rate Scheme	Pay a flat % of gross turnover (incl VAT). Simpler. % varies by trade (6.5%-16.5%)	£150,000 (turnover ex VAT)	Service businesses with low input VAT
Cash Accounting	Account for VAT when cash moves, not when invoiced	£1,350,000	Businesses with slow-paying customers
Annual Accounting	One annual return + payments on account through the year	£1,350,000	Businesses preferring annual to quarterly admin

Standard VAT - the default

Under the Standard scheme, you charge 20% VAT on most sales (output VAT), reclaim 20% on most business purchases (input VAT), and pay the net difference quarterly to HMRC.

Worked example: standard scheme quarter

Sales (ex VAT): £40,000. Output VAT: £8,000.
Business purchases (ex VAT): £15,000. Input VAT: £3,000.
Net VAT to HMRC for the quarter: £8,000 - £3,000 = £5,000.

The standard scheme suits businesses where input VAT (on purchases) is substantial - typically retail, wholesale, manufacturing, construction. The administration is heaviest because every sale and purchase invoice must be tracked with VAT separately.

Flat Rate Scheme - simpler but trade-specific

Under FRS, you charge customers 20% VAT but pay HMRC a flat percentage of your VAT-inclusive turnover, regardless of input VAT. You generally cannot reclaim input VAT on purchases (with a "capital expenditure goods over £2,000" exception).

Trade category	Flat rate %
Accountancy	14.5%
Architecture, civil engineering, surveying	14.5%
Business services not listed elsewhere	12%
Computer and IT consultancy	14.5%
Construction services (labour only)	9.5%
Hairdressers and beauty	13%
Hotels and accommodation	10.5%
Management consultancy	14%
Photography	11%
Printing	8.5%
Restaurants and takeaways	12.5%
Retail not listed elsewhere	7.5%
Limited cost trader	16.5%

The "Limited Cost Trader" ruleFrom April 2017, if your VAT-inclusive goods spend is less than 2% of turnover OR less than £1,000/year, you must use the 16.5% Limited Cost Trader rate regardless of your trade. This was introduced to stop service-businesses with no material costs (typical IT contractors) from exploiting the lower flat rates.

Worked example: IT contractor on FRS

Sarah is an IT contractor, sole trader, with £75,000 turnover from one client.

She invoices £75,000 + £15,000 VAT = £90,000 total
Her input VAT (laptop, software, phone) is around £300/year
£300 / £75,000 = 0.4% - she falls under the "Limited Cost Trader" rule
FRS rate: 16.5%
VAT to HMRC: 16.5% × £90,000 = £14,850
VAT she charged the client: £15,000
FRS "profit" on VAT: £15,000 - £14,850 = £150/year

For Limited Cost Traders, FRS produces minimal saving over Standard. Sarah is better off on the Standard scheme where she can reclaim her £300 input VAT.

Cash Accounting - cash-flow friendly

Standard VAT accounts for VAT on invoice date. If you invoice in March but the customer pays in May, you still owe VAT to HMRC at the end of March’s quarter - before you have the customer’s cash. Cash Accounting reverses this: VAT is owed when you actually receive payment.

Worked example: B2B services with slow-paying customers

Marcus runs a small consulting practice. Most clients pay 60-90 days after invoice.

Invoice March 31: £20,000 + £4,000 VAT
Customer pays June 15: receives £24,000
Under Standard: £4,000 VAT due to HMRC by May 7 (before customer pays). Marcus must fund this from working capital.
Under Cash Accounting: £4,000 VAT owed only after receipt on June 15. No cash-flow squeeze.

Cash Accounting is particularly valuable for B2B services, consulting, and any business with significant accounts receivable. It’s available up to £1.35m turnover.

Annual Accounting - admin simplification

Under Annual Accounting, you submit ONE annual VAT return at year-end. Through the year, you make either nine monthly or three quarterly Payments on Account based on the previous year’s liability. The final return reconciles the actual VAT owed and either pays a balance or claims a refund.

Annual Accounting is rarely cheaper than StandardThe VAT owed is identical to the Standard scheme - Annual Accounting only changes the administrative timing. Savings come from preparing one return instead of four. Worth it if VAT is genuinely the biggest admin burden and your turnover is stable enough to set fair Payments on Account from prior-year data.

The decision framework

If you have significant input VAT (retail, wholesale, construction with material costs)Standard scheme. Reclaim input VAT in full.

If you are a pure service business with minimal costs and turnover under £150kFlat Rate Scheme can simplify admin. Run the maths for your specific trade rate vs the Limited Cost Trader 16.5% rate. If you’d be classed as a Limited Cost Trader, FRS rarely beats Standard.

If your customers are slow payers (60-90 day terms)Cash Accounting Scheme. Eliminates the cash-flow squeeze of paying VAT before receiving customer payment.

If quarterly admin is a major burden and turnover is stableAnnual Accounting Scheme. Combinable with Cash Accounting for maximum simplification.

Above £1.35m turnoverYou must use Standard, with the option to add Cash Accounting only.

Common VAT scheme mistakes

Mistake 1: Staying on FRS after becoming a Limited Cost Trader.Many IT contractors and consultants started on FRS at favourable rates (12-14%) but became Limited Cost Traders post-2017 at 16.5%. Most are now better off on Standard - HMRC will not move you automatically.

Mistake 2: Voluntary registration without doing the maths.Voluntary VAT registration below £90k can be beneficial if your customers are VAT-registered (they reclaim the VAT) and you have input VAT to reclaim. It’s harmful if you serve consumers (who can’t reclaim VAT) - effectively a 20% price rise to them.

Mistake 3: Missing the registration deadline.You must register within 30 days of exceeding the £90,000 turnover threshold (rolling 12-month basis). Late registration triggers penalties and back-dated VAT bills.

Mistake 4: Not deregistering when below £88,000.The deregistration threshold is £88,000. If your turnover drops below this, you can voluntarily deregister - reducing admin and potentially keeping prices competitive against unregistered competitors.

Calculate your VAT position

The VAT calculator handles all four UK schemes - try different scenarios to see which scheme produces the lowest combined VAT + admin cost for your business.

Open the VAT calculator

Sources and references

UK VAT registration thresholds from gov.uk VAT thresholds. Flat Rate Scheme percentages from gov.uk FRS. Cash Accounting and Annual Accounting Schemes from gov.uk Cash Accounting and Annual Accounting. Limited Cost Trader rules from FRS trade sectors guidance.

UK Tax Drag is educational and not regulated financial, tax, legal or business advice - see the disclaimer for the full position. Always verify current rates and rules at the original government sources before acting.

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