VAT on commercial property

VAT on Mixed-Use Property

PropertyVAT Team · Updated 21 October 2026 · 3 min read

Mixed-use buildings are common — the shop with flats above, the office with a caretaker's dwelling, the pub with living accommodation. They are also where the clean rules about VAT on commercial property stop being clean.

Two treatments in one building

The fundamental point: an option to tax generally does not apply to residential parts of a property.

So on a shop with two flats above, where the seller has opted to tax:

One transaction, one price, two treatments. Which means the price has to be split.

Apportionment

The consideration must be apportioned between the elements on a basis that is fair and reasonable. This is not a formality:

• It determines how much VAT you pay. A higher commercial allocation means more VAT at completion.
• It determines how much you can recover. VAT charged on a residential element that should have been exempt is not recoverable merely because it appeared on an invoice.
• It should be agreed and documented between buyer and seller before completion, not improvised on the completion statement.

Common bases include floor area and relative market value. Floor area is simpler; value is often more defensible where the two elements are very different in quality or yield. Whichever is used, it should be recorded and supportable.

Where it goes wrong

VAT charged on the whole price. A seller treats the entire consideration as standard-rated. The buyer pays 20% on everything, then finds that the VAT attributable to the residential part was not properly chargeable — and therefore not recoverable.

No apportionment at all. The contract is silent, the completion statement shows one figure, and the position is unresolved when the reclaim is made.

An apportionment with nothing behind it. A round-number split with no methodology is the kind of thing that attracts questions on a repayment claim.

Assuming the flats make it residential. For SDLT, mixed use generally falls under the non-residential scale. For VAT, the two elements are treated separately. The classifications do not map onto each other.

The SDLT angle

Mixed-use property generally attracts the non-residential SDLT scale, which is often more favourable than the residential scale and avoids the residential surcharges.

That makes the mixed-use classification valuable — and sometimes contested, where the commercial element is marginal. It is worth establishing the basis for the classification rather than assuming it.

Note the interaction: SDLT is charged on the VAT-inclusive consideration, so whatever VAT is properly chargeable on the commercial element also increases the stamp duty.

What to establish before exchange

1. Is any part of the property residential? Including caretaker flats and ancillary accommodation.
2. Has the seller opted to tax, and over what? Ask for the notification and the extent of the land covered.
3. How is the consideration apportioned, and on what basis?
4. Is the apportionment recorded in the contract?
5. What VAT will actually be charged, and on which element?
6. Will you receive a VAT invoice reflecting the apportionment correctly?
7. Is the property mixed use for SDLT, and what supports that?

Why it matters for funding

Apportionment changes the amount of VAT due, so it changes the facility you need. A building where 70% of the value is commercial carries a materially different VAT bill from one where the split is 40/60.

Settle the apportionment before arranging funding. A facility sized against an assumed split is a facility that may be wrong on the day.

This guide is general information, not tax advice. Mixed-use VAT and apportionment are fact-specific — take specialist advice before exchange.