Value Added Tax (VAT) is one of the most significant taxes that UK businesses must manage. Vat is collected on behalf of HM Revenue & Customs (HMRC), so it is not a business expense in itself, but failing to handle it correctly can result in penalties and unnecessary costs.
Understanding VAT in the UK
VAT is charged on most goods and services sold in the UK and on some imports. Businesses act as tax collectors for HMRC by:
- Charging VAT on sales (known as output tax)
- Paying VAT on purchases (known as input tax)
- Reporting and paying the difference to HMRC
If the output VAT is higher than the input VAT, the business pays HMRC the balance. If input VAT is higher, HMRC usually issues a refund.
VAT Registration
In the UK, a business must register for VAT if its taxable turnover exceeds the threshold (currently £90,000 per year as of 2025). Businesses may also choose to register voluntarily below this threshold, often to reclaim input VAT or to appear more credible to clients.
Keeping VAT records
UK VAT law requires businesses to maintain clear and accurate records. This includes:
- VAT invoices issued for sales, showing VAT rates and amounts separately.
- VAT on purhcases where input tax is reclaimable
- Digital records that comply with MTD (using approved accounting software)
Records must be kept for at least six years.
Filing VAT returns
Most businesses file quarterly VAT returns through HMRC’s MTD portal.
A VAT return must include:
- Total sales and VAT charged (output tax)
- Total purchases and VAT paid (input tax)
- The net VAT payable or reclaimable
Returns and payments must be submitted by the deadline (usually one month and seven days after the end of the VAT period).
VAT Schemes in the UK
Different schemes are available to simplify VAT accounting for eligible businesses:
- Standard Accounting – VAT is based on invoices issued and received
- Cash Accounting Scheme – VAT is accounted for when payment is actually received or made (helpful for cash flow)
- Flat Rate Scheme – Small businesses pay a fixed percentage of turnover as VAT, without reclaiming input VAT on most purchases.
Choosing the right scheme can significantly reduce administrative burden.
Special Considerations
- VAT Rates – The UK currently has three main VAT rates:
- Standard rate: 20% (most goods and services).
- Reduced rate: 5% (e.g. domestic energy, children’s car seats)
- Zero rate: 0% (e.g most food, books, children’s clothes).
- Exempt supplies – e.g., insurance, education, health services. No VAT is charged, and input tax may not be reclaimable.
Example
Scenario:
A VAT-registered design agency in London is on the Standard VAT scheme and files quarterly returns. During one quarter, its transactions are:
- Sales to clients (excluding VAT): £60,000
- Purchases from suppliers (excluding VAT): £20,000
- VAT rate: 20% (standard rate applies)
Step 1: Calculate Output VAT (sales)
£60,000 * 20% = £12,000
Step 2: Calculate Input VAT (purchases)
£20,000 * 20% = £4,000
Step 3: Net VAT payable to HMRC
Output VAT (£12,000) – Input VAT (£4,000) = £8,000
This £8,000 is paid to HMRC with the quarterly VAT return.
If instead the business’s purchases had been larger than its sale (e.g, start-up investment), the input VAT might exceed the output VAT, and HMRC would issue a refund.