Most businesses treat input VAT as a simple binary: you incurred it, you reclaim it. That works while everything you sell is taxable. The moment part of your income is exempt, a different and considerably more demanding regime applies, and it is one where errors compound quietly over years.
Who this applies to
You are partly exempt if you make both taxable supplies (standard, reduced or zero-rated) and exempt supplies. In practice that means:
- Financial services and insurance, where core intermediation is exempt but advisory, administration and consultancy fees are frequently standard-rated;
- Property businesses holding a mix of opted and unopted buildings;
- Education, health and welfare providers with commercial trading alongside exempt provision;
- Charities and membership bodies with mixed income streams.
The distinction that matters is exempt versus zero-rated, and it is the one most often confused. Both mean no VAT on the invoice. Zero-rated supplies are taxable at 0% and carry full input recovery. Exempt supplies sit outside the VAT system and carry none. A business that thinks it is zero-rated when it is exempt has been over-reclaiming, sometimes for years.
Three pots of input VAT
Every pound of input VAT has to be sorted into one of three categories:
- Directly attributable to taxable supplies, recover in full;
- Directly attributable to exempt supplies, recover nothing;
- Residual (overhead), rent, IT, professional fees, utilities, anything supporting the business as a whole, apportion.
Getting the direct attribution right is where the real money is. Time spent properly attributing costs to taxable work almost always beats arguing about the apportionment method.
The standard method
Residual input VAT is apportioned using the standard method: recover the proportion that taxable supplies bear to total supplies, based on values excluding VAT. If 70% of your supplies by value are taxable, you recover 70% of the residual pot. The resulting percentage is rounded up to the next whole number in most cases, though large businesses have tighter rules.
Where the standard method produces an unfair result, for example a business whose exempt income is high in value but consumes very little overhead, you can apply to HMRC for a special method based on floor space, headcount, transaction counts or another fairer driver. A special method needs HMRC approval before use.
The de minimis test: the escape route
Partial exemption comes with a genuine let-off. If your exempt input tax is small enough, you can recover all of it. You are de minimis where exempt input tax is:
- no more than £625 per month on average (£7,500 a year); and
- no more than 50% of your total input tax.
Both limbs must be satisfied, it is an all-or-nothing test, not an allowance. Fail either one and you recover none of your exempt input tax, not merely the excess. That cliff edge is precisely why the calculation needs monitoring during the year rather than being discovered at the end of it.
The annual adjustment
Partial exemption is calculated provisionally each VAT period and then trued up once a year through an annual adjustment, comparing the full year's figures against what you actually recovered quarter by quarter. Seasonal businesses and those with lumpy exempt income can look de minimis for three quarters and fail decisively across the year. The annual adjustment is not optional and is a standard HMRC check.
There is also the capital goods scheme, which stretches recovery on larger assets, most commonly land and buildings over £250,000, across a ten-year adjustment period. Buy or refurbish a substantial property in a partly exempt business and the recovery position is monitored for a decade.
The reverse charge sting
One interaction routinely missed: services bought from overseas are subject to the reverse charge, and a partly exempt business declares the output VAT but recovers only its recovery percentage of the corresponding input VAT. Every overseas software subscription therefore carries a real, irrecoverable VAT cost. For a firm running its systems on international platforms, that adds up quickly.
Worth reviewing properly
Partial exemption rewards attention. Better direct attribution, a special method that fits how the business actually consumes its overheads, or simply structuring so exempt input tax stays inside the de minimis limits can each be worth thousands a year. It is a recurring, compounding saving rather than a one-off. We handle partial exemption calculations, annual adjustments and special method applications through our VAT service, with particular experience in financial services. If you make any exempt supplies and have never had the calculation reviewed, book a recovery review.