UK VAT Registration Threshold 2026: GBP 90,000 Limit, Voluntary Registration and Key Schemes

Understanding the VAT Registration Threshold

Value Added Tax (VAT) is charged at the standard rate of 20% on most goods and services in the UK. Businesses whose taxable turnover exceeds the registration threshold must charge VAT on their sales, file VAT returns, and pay the collected VAT to HMRC.

For 2026, the mandatory registration threshold is GBP 90,000 in taxable turnover over any rolling 12-month period. This is not a calendar-year figure -- you must monitor your turnover on a rolling basis and register as soon as the threshold is crossed.

When your turnover exceeds GBP 90,000, you must notify HMRC within 30 days. Your effective registration date is the first day of the second month after you exceeded the threshold.

Mandatory vs Voluntary Registration

Mandatory registration is required once your taxable turnover exceeds GBP 90,000. Failure to register on time can result in a penalty calculated as a percentage of the VAT you should have charged from the date you should have been registered.

Voluntary registration is available to any business below the threshold. This can make sense when:

• Your customers are businesses who can reclaim input VAT (so the 20% you charge is cost-neutral to them)
• You have significant purchases on which you can reclaim input VAT (e.g., a startup investing in equipment)
• You want to appear established to corporate clients

Voluntary registration is less suitable for businesses serving final consumers (members of the public), who cannot reclaim VAT and will simply pay 20% more.

The Deregistration Threshold

If your taxable turnover drops, you can apply to deregister once it falls below GBP 88,000 (the deregistration threshold). This applies based on expected future turnover, not historical figures. HMRC will cancel your registration from a date you agree.

Note the GBP 2,000 gap between the registration threshold (GBP 90,000) and the deregistration threshold (GBP 88,000). This prevents businesses hovering just around GBP 90,000 from constantly registering and deregistering.

The Flat Rate Scheme

The Flat Rate Scheme (FRS) is available to VAT-registered businesses with VAT-exclusive turnover below GBP 150,000. Instead of accounting for VAT on individual transactions, you pay a sector-specific flat rate percentage of your gross VAT-inclusive turnover.

Examples of flat rates by sector in 2026:

• Management consultancy: 14%
• Computer and IT consultancy: 14.5%
• Accountancy or bookkeeping: 14.5%
• Retail: varies (typically 7.5%)
• Catering: 12.5%

You still invoice clients at the full 20% VAT rate but remit only the flat rate to HMRC, keeping the difference as profit. However, you cannot separately reclaim input VAT on purchases (with limited exceptions for certain capital items above GBP 2,000).

The FRS is generally beneficial for service businesses with low input VAT costs. If you have high VAT on purchases, standard VAT accounting may be more cost-effective.

The Cash Accounting Scheme

Under standard VAT accounting, you account for VAT when you issue a sales invoice (even before you have been paid). The Cash Accounting Scheme allows businesses with VAT-exclusive taxable turnover below GBP 1.35 million to account for VAT only when cash is actually received from customers (and reclaim input VAT only when you pay your suppliers).

This scheme improves cash flow, particularly for businesses that offer credit terms or struggle with late-paying clients. You automatically leave the scheme when your turnover exceeds GBP 1.6 million.