Two things soften it. Under the de minimis limits, if your exempt-related VAT is no more than £625 a month on average and no more than half your total VAT, you can recover all of it. And if the standard split does not fairly reflect how you use your costs, you can apply for a special method. On large overheads, and over the ten-year Capital Goods Scheme, these choices are worth serious money.
Partial exemption is where careful VAT work turns straight into recovered cash. Most partly-exempt businesses run the standard calculation, pass or fail de minimis, and never ask whether a different method would put more VAT back. On any real scale, that unasked question is often the most valuable one in the business. Here is how the mechanism works, and where the money hides.
Common mistakes & confusionsWhere partial exemption trips businesses up
- Not realising you are partly exempt at all. A trading company with a rented flat, a clinic with a retail line, a training provider with some exempt courses: all can be partly exempt without thinking of it that way. The moment there is exempt income and shared costs, the rules apply.
- Reclaiming all your VAT anyway. Recovering input tax on costs behind exempt income, without a de minimis test or a method, is a common error that surfaces on inspection, with the over-claimed VAT assessed back plus interest.
- Treating the de minimis limits as a sliding scale. They are a cliff edge. Stay under both £625 a month and 50% and you recover everything; go over either, even slightly, and the exempt slice is lost in full.
- Forgetting the annual adjustment. Quarterly figures are only provisional. A run of quarters can look fine and still produce a clawback once the year is recalculated, and missing the adjustment is a common compliance slip.
- Living with a standard method that does not fit. If turnover does not reflect how you use your costs, the standard method can quietly under-recover, year after year. A special method often recovers more, but only if you apply for it.
- Ignoring the Capital Goods Scheme on big property. Spend £600,000 or more on a building and recovery is reviewed for ten years. Recover on today's mix, shift towards exempt use, and part of it is clawed back later.
What partial exemption is, and who it hits
Partial exemption is the rule for businesses that make both taxable and exempt supplies. If everything you sell is taxable, you reclaim all the VAT on your costs. If you also make exempt supplies, insurance, most finance, residential letting, health, education, some fundraising, you cannot reclaim the VAT on the costs behind that exempt income. You are partly exempt, and the question stops being whether you can reclaim your VAT and becomes how much.
That catches more businesses than expect it. A trading company with a rental flat, a training provider with some exempt courses, a health clinic with a taxable retail line, a charity with mixed income: all can be partly exempt without ever describing themselves that way. The moment there is exempt income and shared costs, partial exemption is in play, and getting the recovery right is worth real money.
Step one: attribute your VAT to what it is really for
The method starts by sorting the VAT on your costs into three buckets. First, VAT on costs used only to make taxable supplies, which is recoverable in full. Second, VAT on costs used only to make exempt supplies, which is not recoverable at all. Third, VAT on costs that serve both sides, your overheads: rent, professional fees, software, the things that do not belong to one activity or the other.
The first two buckets are straightforward once you have done the work of attributing carefully. The action is all in the third bucket, the residual or overhead VAT, because that is the part the rules have to apportion between your taxable and exempt activities. How you split it is what decides how much you get back.
Step two: the standard method and the taxable-turnover percentage
Most businesses use the standard method to split that residual VAT. It apportions the overhead VAT by the value of your taxable supplies as a percentage of your total supplies, rounded up to the next whole number, and you recover that percentage of your residual VAT. HMRC's Notice 706 sets this out. So if 80% of your supplies by value are taxable, you recover 80% of your overhead VAT, on top of all the VAT attributable directly to taxable supplies.
It is simple, which is both its strength and its weakness. The taxable-turnover percentage is easy to calculate, but it assumes your overheads are used in the same proportion as your income earns it, and that is not always true. When it is not, the standard method can hand you either too little or too much, and that is where the sharper options come in.
De minimis: when you can reclaim the lot anyway
There is a relief that rescues many smaller partly-exempt businesses entirely: the de minimis limits. If the VAT relating to your exempt supplies, the directly-attributable exempt VAT plus the exempt share of your overheads, is no more than £625 a month on average and no more than half of your total input tax, you can recover all of your VAT, including the exempt part that would otherwise be blocked.
It is a genuine cliff edge, not a sliding scale. Stay under both limits and everything comes back. Go over either one, even slightly, and you lose the exempt slice in full. That is why partly-exempt businesses near the threshold watch the figure closely, and why bringing a large exempt-related cost into the right period can be the difference between recovering it and not.
Because it passes both de minimis tests, £625 a month and 50%, you recover the whole £48,000, including the £6,000 that would otherwise be blocked. Let that exempt VAT drift up to £640 a month and you lose all £6,000-plus of it, not just the excess. Businesses close to the line track it every period.
The annual adjustment: your quarterly figures are only provisional
Partial exemption is not settled quarter by quarter. Each VAT return uses a provisional calculation, and then once a year you carry out an annual adjustment, recalculating recovery across the whole year and correcting the difference. A run of quarters can look fine and still produce a clawback, or a repayment in your favour, once the year is viewed as a whole.
This matters for two reasons. A seasonal or lumpy business can pass de minimis in most quarters and fail across the year, or the other way round, so the annual figure is the one that really counts. And the adjustment is a compliance obligation in its own right: missing it, or getting it wrong, is a common reason partly-exempt businesses end up having to correct past returns.
When the standard method is unfair: a special method
When the taxable-turnover percentage does not fairly reflect how you actually use your costs, you do not have to live with it. You can apply to HMRC for a partial exemption special method, a bespoke basis that apportions your overhead VAT by something more representative, floor area, staff numbers, transaction counts, or a combination, rather than by turnover.
A special method needs HMRC's written approval before you use it, and it has to give a fair and reasonable result. For a business where a special method meaningfully increases recovery, a finance business with high-value but low-volume exempt deals, or a property business with uneven turnover, the extra VAT recovered year after year can dwarf the cost of setting it up. It is the single biggest lever in partial exemption, and the most underused.
A VAT Expert Call checks whether your partial exemption method is costing you recovery, and whether a special method would put more VAT back.
The Capital Goods Scheme: recovery that moves for ten years
For larger assets, recovery is not even settled at the end of the year. Where you spend £600,000 or more, excluding VAT, on land or a building, that expenditure falls into the Capital Goods Scheme, and your recovery on it is reviewed over ten years. The threshold rose from its long-standing £250,000 on 29 July 2026, so fewer assets are caught, but the large ones still are.
Under the scheme, if the proportion of taxable and exempt use of that asset changes over the ten years, your original recovery is adjusted up or down, interval by interval. For a partly-exempt business that ties the Capital Goods Scheme directly to your partial exemption percentage: as the business becomes more or less exempt, the recovery on a major building follows it, long after the invoice was paid and the year closed.
Where the money is, and why it is worth getting right
Partial exemption looks like a compliance chore, but at any real scale it is a recovery opportunity. The percentage you recover, whether you pass de minimis, whether a special method fits you better, and how the Capital Goods Scheme plays out, each moves the amount of VAT you keep, and on large overheads a few percentage points is a serious sum every year.
It also compounds. A method that quietly under-recovers costs you the same amount every year until it is fixed, and an error can run across each annual adjustment and reach back over several years. That is why partial exemption rewards a proper look rather than a rough estimate: the gap between an adequate calculation and the right one is often the most recoverable VAT in the business.
When you might need expert VAT advisory
Partial exemption is where careful VAT work turns directly into recovered cash, and where the standard approach often leaves money on the table. In practice, the situations below are where a senior specialist's read meaningfully improves the outcome:
- You make both taxable and exempt supplies and want to know whether you are recovering as much VAT as you are entitled to
- The standard method does not seem to reflect how your business actually uses its costs, and a special method might recover more
- You are close to the de minimis limits and want the calculation, and the timing of costs, handled properly
- Your annual adjustment is due and you want it done correctly rather than estimated
- You have spent, or are about to spend, £600,000 or more on property and need the Capital Goods Scheme position mapped over ten years
- You are an accountant with a partly-exempt client and want the method and adjustments sense-checked
Whether you're a partly-exempt business trying to recover more, or an accountant refining a client's method, we focus on the VAT questions where extra expertise pays off, and we work in plain English.