2.5 Imports, Exports & Postponed VAT Accounting
Key Takeaways
- Exports of goods from Great Britain to customers outside the UK are zero-rated provided the goods physically leave within the time limit and the business holds valid evidence of export.
- Import VAT is due on goods brought into Great Britain from anywhere outside the UK, at the same rate the goods would carry if supplied domestically.
- Postponed VAT accounting lets a business account for import VAT on its VAT return instead of paying it at the border, entering the same amount as output tax in Box 1 and input tax in Box 4.
- Postponed VAT accounting is cash-flow neutral for a fully taxable business, but the net value of the imported goods still increases Box 7.
- A business that pays import VAT at the border instead recovers it using the monthly C79 certificate as evidence, not the supplier's invoice.
2.5 Imports, Exports & Postponed VAT Accounting
The AAT scope of content requires you to be able to calculate VAT for international trade — imports and exports — and to understand how to account for postponed import VAT. This section covers both. Remember the unit-level exclusion: the rules relating to Northern Ireland are not assessed, so everything below describes a Great Britain business.
1. Exports of Goods
Goods exported from Great Britain to a destination outside the UK are zero-rated. That means:
- No output tax is charged to the overseas customer.
- The supply is still a taxable supply, so it counts towards the £90,000 registration threshold and does not restrict input tax recovery.
- The net value goes in Box 6 of the VAT return.
Zero-rating is a relief, not an automatic right, and it is conditional on two things.
Condition 1: The goods must physically leave
The goods must leave the UK within the time limit — normally 3 months of the supply, extended to 6 months where the goods are processed before export.
Condition 2: The business must hold valid evidence of export
The evidence must be obtained within the same time limit and kept for 6 years. Acceptable evidence includes:
- Official evidence: the customs declaration and goods departure message from the customs system.
- Commercial evidence: the bill of lading, air waybill, or a certificate of shipment from the carrier.
- Supplementary evidence: the customer's order, correspondence, the sales invoice, the packing list, and evidence of payment.
⚠️ EXAM TRAP: If the evidence is missing or incomplete, the zero rate is lost and the supplier must account for output tax at the standard rate on the amount received, treated as VAT-inclusive. The overseas customer is long gone, so the supplier absorbs the VAT. This is the practical reason export documentation is chased so hard.
Services supplied to overseas customers
Most services supplied business-to-business to a customer belonging outside the UK are outside the scope of UK VAT under the general place-of-supply rule, because the place of supply follows the customer. No output tax is charged, and the value is still reported in Box 6.
2. Imports of Goods
When goods enter Great Britain from anywhere outside the UK, import VAT becomes due. Two points follow immediately:
- Import VAT is charged at the rate the goods would attract if supplied in the UK. Importing children's clothing attracts import VAT at 0%; importing laptops attracts it at 20%.
- Import VAT is calculated on the customs value of the goods — broadly the price paid, plus transport and insurance to the UK border, plus any customs duty.
The business then has a choice about when it pays.
3. Postponed VAT Accounting (PVA)
Postponed VAT accounting allows a VAT-registered importer to declare and recover import VAT on the same VAT return, rather than paying it at the border and waiting to reclaim it. It is optional, it is chosen on the customs declaration, and it needs no prior approval from HMRC.
How it appears on the return
| Box | Entry | Why |
|---|---|---|
| Box 1 | Add the import VAT due on the goods | The business accounts for the VAT as though it were its own output tax |
| Box 4 | Add the same import VAT, to the extent it is recoverable | The business reclaims it as input tax under the ordinary rules |
| Box 7 | Add the net value of the imported goods | Box 7 is the total value of purchases and inputs excluding VAT |
For a fully taxable business the Box 1 and Box 4 entries cancel out, so PVA has no net cash effect — but it removes the cash-flow gap that arises when import VAT is paid at the border and recovered a quarter later. For a partly exempt business the Box 4 entry is restricted, so PVA produces a real cost, just as it would on a domestic purchase.
Evidence
The importer downloads a monthly postponed import VAT statement from HMRC's online service. That statement is the evidence for the Box 1 and Box 4 figures. It is usually available in the first half of the following month, which is why a business importing regularly should not close its VAT return too early.
Worked example
Scenario: Northgate Instruments Ltd, a fully taxable GB business, imports laboratory equipment in the quarter to 30 June 2026. The customs value is £40,000 and customs duty of £1,200 applies. Northgate uses postponed VAT accounting. In the same quarter it makes £180,000 of standard-rated UK sales and £22,000 of zero-rated exports, and incurs £6,000 of input tax on UK purchases of £30,000 net.
Step 1 — Calculate import VAT
Step 2 — Populate the return
| Box | Calculation | Amount |
|---|---|---|
| Box 1 | UK sales £180,000 × 20% = £36,000, plus postponed import VAT £8,240 | £44,240 |
| Box 2 | Great Britain business, no NI acquisitions | £0 |
| Box 3 | Box 1 + Box 2 | £44,240 |
| Box 4 | UK input tax £6,000 plus postponed import VAT £8,240 | £14,240 |
| Box 5 | £44,240 − £14,240 | £30,000 payable |
| Box 6 | UK sales £180,000 + exports £22,000 | £202,000 |
| Box 7 | UK purchases £30,000 + imported goods £41,200 | £71,200 |
Notice the £8,240 appears twice and nets to nil in Box 5 — but it still changes Box 7, and the £22,000 of exports still increases Box 6 without adding a penny to Box 1.
4. The Alternative: Paying Import VAT at the Border
A business that does not choose PVA pays the import VAT when the goods are cleared, usually through its freight agent or a duty deferment account. It then reclaims the VAT on a later return.
| Postponed VAT accounting | Paying at the border | |
|---|---|---|
| When VAT is paid | Never paid separately; declared on the return | Paid at import, often via the freight agent |
| Box 1 | Import VAT added | Nothing |
| Box 4 | Import VAT recovered | Import VAT recovered when the certificate arrives |
| Box 7 | Net value of goods | Net value of goods |
| Evidence | Monthly postponed import VAT statement | Form C79 monthly import VAT certificate from HMRC |
| Cash flow | Neutral | VAT funded from the date of import until the return is filed |
⚠️ EXAM TRAP: The evidence for reclaiming import VAT paid at the border is the C79 certificate, not the overseas supplier's invoice and not the freight agent's invoice. A business that reclaims from the agent's invoice may be claiming an amount that includes duty and handling charges, which carry no VAT to reclaim.
5. Low-Value Consignments and Common Errors
- Goods in consignments not exceeding £135 in value sold to UK customers by an overseas seller are generally dealt with by the seller charging UK supply VAT at the point of sale, rather than import VAT at the border. The buyer sees a normal VAT invoice.
- A B2B purchase of services from an overseas supplier — cloud software, overseas consultancy — is dealt with by the reverse charge: the UK customer puts the output tax in Box 1 and the recoverable input tax in Box 4, with the net value in Box 6 and Box 7. It does not go in Box 2.
- Exports are zero-rated, not exempt. A business selling only exports is making taxable supplies, must register once over the threshold, and is a repayment trader that will usually benefit from monthly returns (see section 4.5).
6. Quick Reference
| Transaction | Output tax | Input tax | Box entries |
|---|---|---|---|
| Export of goods, evidence held | 0% | n/a | Box 6 net |
| Export of goods, evidence missing | 20% on the amount received, VAT-inclusive | n/a | Box 1 and Box 6 |
| Import using PVA | Import VAT in Box 1 | Same amount in Box 4 if recoverable | Boxes 1, 4, 7 |
| Import paid at the border | None | Import VAT in Box 4 per the C79 | Boxes 4, 7 |
| Services bought from overseas supplier (reverse charge) | In Box 1 | In Box 4 if recoverable | Boxes 1, 4, 6, 7 |
A Great Britain business imports goods with a customs value of £30,000 plus £900 of customs duty, and uses postponed VAT accounting. Assuming the goods are standard-rated and the business is fully taxable, what entries are required?
A GB exporter zero-rates a sale of goods to a customer in Australia but cannot obtain any evidence that the goods left the UK within the time limit. What is the VAT consequence?
A business chooses to pay import VAT at the border rather than using postponed VAT accounting. What document evidences its input tax claim?
How does postponed VAT accounting affect a business that is partly exempt?