Most business owners pour years into building a company, then try to flog it in a few months. That almost never works out. But the ones who walk away with the best deals are usually the ones who’d already been getting ready long before anyone showed up with an offer.
Since April 2026, this has become even more obvious. The rate on Business Asset Disposal Relief (BADR) jumped from 14% to 18%, and trade acquirers alongside private equity firms are still circling well-run UK businesses with real intent. Founders who wait until the last minute will get caught out, because the margin for error on tax, deal structure, valuation and timing has shrunk considerably. So what does it actually look like when someone starts planning an exit three to five years ahead, and why does leaving it late cost so much money?

Photo by Antoni Shkraba: https://www.pexels.com/photo/a-man-using-a-laptop-6621020/The Tax Picture Has Changed
BADR used to take a massive chunk out of Capital Gains Tax. At 10%, it was genuinely generous, and even at 14% there was a decent gap between the relief rate and the standard 24% CGT rate. Now it sits at 18%, which means the maximum lifetime saving has fallen to roughly £60,000 on qualifying gains up to the £1 million cap.
That doesn’t make BADR pointless. But founders can’t lean on it as their main financial cushion any more. How a deal gets structured, when it completes, what form the consideration takes and the wider tax planning around it all carry far more weight than they did a couple of years ago. Leave this stuff to the final few months and you’ll find your options have already narrowed.
What Three to Five Years of Preparation Actually Looks Like
When founders engage exit planning services well before a sale, the business itself can start to change in ways that genuinely move the needle. Owner dependency drops, financial reporting tightens up, revenue becomes more predictable and key staff retention improves. These changes make the company worth more money, full stop.
Think about it from a buyer’s perspective. A business where one person closes every deal, owns every key relationship, holds all the supplier contacts and signs off on every decision is a risky purchase, and acquirers know that. They’ll either walk or push for a heavy discount. But if a founder spends two or three years building out a management team, putting processes on paper and spreading the client base across more accounts, that conversation changes completely.
Starting early also opens up more exit routes. A trade sale might be the first thing that comes to mind, but management buyouts, employee ownership trusts, partial private equity deals and hybrid structures all suit different situations. Each option comes with its own tax treatment, its own timeline and a different level of ongoing involvement from the founder. You won’t properly weigh any of that up if you’re already deep in talks with a buyer.
An employee ownership trust, for example, can mean zero CGT on the sale if it qualifies, which is a much bigger saving than even the best BADR outcome. But EOTs come with their own requirements around structure and governance that take time to put in place.
Due Diligence Catches Unprepared Sellers Off Guard
Due diligence is where rushed exits blow up. Buyers will go through financial records, contracts, employee arrangements, IP ownership and tax history with a fine-tooth comb. Gaps or inconsistencies don’t just slow things down, they chip away at trust, drag the offer price down, spook the buyer’s lawyers and can kill the deal entirely.
Founders who’ve spent years getting ready will have already spotted and sorted these problems. Clean accounts, up-to-date contracts, tidy cap tables and a clear picture of their tax position mean fewer surprises for everyone involved. That kind of preparation speeds up the whole transaction and puts the seller in a much stronger position when it comes to negotiations.
The Seller’s Market Won’t Wait Forever
UK deal activity has held up, with trade buyers and PE houses both competing for quality targets, though volumes have come down from the post-pandemic surge and buyers are pickier about what they’ll pay top multiples for. But none of that lasts forever. Interest rates move, regulations change, buyer appetite fluctuates and economic cycles turn, all of which affect how much a buyer will pay and how fast they’ll commit.
Founders who’ve done the groundwork can pick their moment. They aren’t forced into a sale because the business hit a rough patch or because something changed in their personal life. They can choose the window that works for them, on their own terms.
Don’t Sell Your Business in a Rush
The founders closing the best deals right now aren’t necessarily the ones with the most exciting growth stories. They’re the ones who spent years quietly sorting out the things that buyers actually care about: clean accounts, a team that doesn’t depend on one person, revenue that shows up whether the founder is in the building or not.
With BADR now at 18% and buyers running tighter due diligence than they did even two years ago, there’s less room to wing it. A founder who starts preparing in 2026 for a sale in 2029 or 2030 will have time to restructure, let the numbers settle into a pattern that buyers trust, and explore exit routes that a last-minute seller won’t even know exist. If stepping away from your business is on the cards at some point, the best thing you can do right now is give yourself the runway to do it properly.
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