Input VAT is the VAT you pay on business purchases, and reclaiming it is one of the main benefits of being VAT-registered. But the right to reclaim is conditional, and businesses routinely lose input VAT they were entitled to, or claim VAT they were not, because they treat every VAT charge as automatically recoverable. It is not. Here is what makes an input VAT claim valid, what blocks it, and how to keep your claims clean.
The conditions for a valid claim
To reclaim input VAT, a few things generally need to be true at once: the cost was for your taxable business activity, you hold a valid tax invoice showing the VAT, you have paid or intend to pay the supplier, and the expense is not in a blocked category. Miss any one and the claim is at risk. The most common failure is simply not holding a proper tax invoice, which turns a legitimate cost into an unrecoverable one.
| Condition | What it means in practice |
|---|---|
| Business purpose | The cost relates to your taxable activity, not private use |
| Valid tax invoice | You hold an invoice with the supplier's TRN and VAT shown |
| Intention to pay | The supplier has been or will be paid |
| Not blocked | The expense is not in a disallowed category |
What is blocked
Certain costs cannot have their VAT reclaimed even when they are genuine business expenses. Entertainment provided to customers or others outside the business, and certain motor vehicles available for private use along with their running costs, are the classic blocked categories. Claiming VAT on these is a common error precisely because they feel like ordinary business spending. Knowing the blocked list, and coding those costs so they are excluded from your claim automatically, prevents the mistake.
No valid tax invoice, no claim. It is the single most common reason a legitimate cost becomes unrecoverable VAT, and it is entirely within your control.
When a cost is partly recoverable
Some businesses make both taxable and exempt supplies, and some costs serve both. In those cases the input VAT is not fully recoverable; it is apportioned, so only the part relating to taxable activity can be reclaimed. This is easy to overlook, and getting it wrong in either direction, over-claiming on mixed costs or failing to reclaim the recoverable share, is a frequent source of adjustments. A business with any exempt activity needs a method for splitting its shared input VAT.
What to do about it
Only reclaim input VAT you can support with a valid tax invoice, and chase suppliers for a proper invoice rather than accepting a receipt that lacks the required detail. Code blocked categories, entertainment and private-use vehicles, so they never enter your claim. If you have any exempt supplies, apportion shared costs correctly. And keep the invoices, because they are the evidence a claim rests on. Input VAT recovery is worth real money, and the discipline that protects it, holding the right document for every claim, is neither difficult nor expensive.
This article is general information and is not tax advice. Recovery and blocked categories depend on your specific supplies. We would be glad to review your input VAT recovery.