Six stages, and how long each one really takes
The first stage is the baseline: an honest view of what the business is worth as it stands, which takes days rather than weeks and costs nothing. The second is preparation, which is where the time actually goes. Depending on the state of the contract register, the records and the dependency on you, it runs from two months of tidying to two years of genuine change, and skipping it is the most expensive decision available.
The third stage is the approach to the market, and for an electrical business worth talking about it takes four to eight weeks to reach the right buyers discreetly and get their initial views back. The fourth is offers and heads of terms, the short document setting out the main points of the deal, usually another four to six weeks, and it is the stage owners find most enjoyable and least decisive, because an offer is a statement of intent rather than an agreement.
The fifth stage is due diligence, the buyer's detailed check of the business, which is the longest and least predictable. Six to twelve weeks is normal, and the pace is set by the state of your filing rather than by anybody's enthusiasm. The sixth is legal completion, four to six weeks in parallel with the end of diligence. Allowing for the gaps between stages, that is six to nine months from serious start to money arriving, with preparation in front of it.
What the April 2026 change means for timing
A process beginning now will not complete inside three months. That is arithmetic rather than pessimism: the fastest realistic path from a standing start takes longer than that, and any deal that did complete inside three months would be one where the buyer was already known, the paperwork was already assembled and the price was agreed before anybody started.
The rate is worth stating plainly. Business Asset Disposal Relief, which lowers the tax on your gain if you own and work in the business, was 14% from April 2025 on qualifying gains up to a £1m lifetime limit, and has been 18% since Apr 2026. Which rate applies depends on the date the sale contract is made (for a conditional contract, the date its conditions are met), not the completion date, so a sale that starts now is planned on the 18% figure. The rise from 14% cost at most £40,000 on a full lifetime allowance, which is real money and smaller than the difference between a prepared business and an unprepared one.
That is the whole point and it is worth being blunt about it. Compressing a sale to beat a date hands the buyer the one piece of information you would rather they did not have, which is that you are in a hurry, and that knowledge is worth more to them than the difference in rate is to you. Plan for the rate that will apply, and spend the time on the parts that are within your control.
What to do in the month before anything begins
Assemble four documents and the rest follows more easily than you expect. Three years of statutory accounts with current management figures. A contract register showing every recurring arrangement, its terms, renewal date, value and margin. A workforce schedule with grades, cards, qualifications and length of service. A one-page note of everything that runs through you personally, written honestly.
Then decide two things before anybody else is involved. What you want the outcome to look like, including how long you are willing to stay afterwards, how much of the price you are prepared to take over time rather than at completion, and what would make you walk away from an otherwise good offer. And who, inside the business, needs to know and when, which is a decision rather than something to be settled by whoever guesses first. Owners who settle those two questions in January spend the rest of the process making decisions instead of reacting to them.
Diligence is paced by the state of your filing, not by anybody's enthusiasm.
Begin With Stage One
The baseline valuation is confidential and runs on your own figures. It is the only one of the six stages that costs nothing to start.
Try the free calculatorWhen you decide to sell, here is how Simon Read runs the sale, from the first conversation to completion.