The DateCompletion fixes the rate, and completion is rarely where you think it is
The date that governs a business disposal is the date it completes. Not the day you agreed a price with an acquirer, not the day heads of terms were signed, not the day your accountant first ran the figures. Completion is what places the disposal in one tax year rather than the next, and everything before it is preparation.
Business Asset Disposal Relief is 10% on qualifying gains up to a £1m lifetime limit for a disposal completing on or before 5 April 2025, and 14% for one completing on or after 6 April 2025. The rate steps again to 18% on 6 April 2026. All of that was set at the Autumn Budget on 30 October 2024, so nothing about it is a surprise; the only variable is which side of the line a completion lands on.
Anti-forestalling rules have applied since Budget day, which means a contract entered into before a rate change and completed afterwards is examined on its purpose rather than taken at its date. That is a conversation for your own tax adviser rather than something to design a deal around, and it is the reason the honest answer to "can we get it done before April" is usually no.
The RunwayA fire safety sale takes longer than a tax year end leaves you
A sale of an owner-managed fire safety business usually occupies six to nine months, and diligence here is heavier than in most trades because so much of what is being bought is documentary. An acquirer will want certification records, service contracts with renewal dates, engineer qualifications, commissioning certificates and the audit history behind the scheme registration. None of that is quick to assemble under pressure.
So if the tax year end is five weeks away and nothing has started, the useful question is not how to compress a sale. It is how to use the coming twelve months so that the following year end is a real option rather than a theoretical one.
There is one honest exception, and it is worth naming. Where a process is already well advanced, heads of terms signed, diligence under way, solicitors instructed on both sides, the tax year end is a legitimate thing to work towards, and a few weeks of concentrated effort genuinely can matter. That is a different situation from starting in March, and the owners it applies to already know who they are.
There is a second reason not to hurry. The things that move the price, contract documentation, certification currency, a named technical authority who is not the owner, customer spread, are all built over quarters. A rushed process tends to lose more on the headline number than the rate step costs, which makes urgency an expensive way to save tax.
So if the tax year end is five weeks away and nothing has started, the useful question is not how to compress a sale.
The Five WeeksWhat five weeks is genuinely long enough to achieve
Five weeks will not produce a completion, but it will produce most of a diligence pack, and that has value in every scenario including never selling. Start with the contract base: every service and maintenance agreement in one schedule, with the client, the site count, the renewal date, the annual value and whether it renews automatically or by re-tender.
Then the certification file. Confirm the BAFE registration scope is current, that the nominated individuals behind it are the people still doing the work, and that engineer qualifications and CPD records are filed rather than assumed. Anything out of date is quicker to fix in March than to explain in diligence.
Then the accounts. Three years of statutory accounts plus management figures split between contracted servicing income and project work, because that split is the first thing an acquirer models and the last thing most owners have to hand. An owner who does this in a quiet March spends the following autumn answering questions in days rather than weeks.
Do the employment file at the same time. Contracts of employment, the current engineer list with qualifications and start dates, holiday and pension records, and a note of anything unusual in anyone's terms. Staff transfer with the business when it changes hands, so a buyer reads that file closely, and it is the one owners most often find is incomplete when somebody finally asks for it.
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