The Danger of Starting an Accountancy Practice from Scratch
Why buying an established client base still beats building one from nothing — updated for 2026
Every year a fresh crop of accountants weighs up the same decision: start a practice from nothing, or buy one that already works. It’s a decision we’ve watched play out many hundreds of times over more than five decades at A.P.M.A., and the maths hasn’t really changed, even though the market around it has. Buying an existing, profitable practice is still, in the overwhelming majority of cases, the lower-risk and lower-cost route into ownership — and in 2026 there are some new reasons why that’s true, alongside the old ones.
The two problems every cold start runs into
Building a client base from scratch means solving two hard problems at once: developing the service offering, and persuading clients to leave their existing accountant (or finding them cold). The most common way practitioners try to solve the second problem is by undercutting the fees the client is already paying — which feels like progress at the time, but stores up a much harder problem for later: getting those fees back up to a realistic level once the client is comfortable and the relationship is established.
The result is a familiar pattern: to reach a viable income, a new practitioner needs a lot of clients, but each one is only marginally profitable, so the hours climb faster than the revenue. Worse, the profit generated often isn’t enough to justify bringing on a junior member of staff to share the load — so the new owner hits what we’ve always called the pain barrier: too little time to take on more clients, and too little profit to hire anyone who could help.
Buying resets the arithmetic
An existing, profitable practice doesn’t just hand you clients — it hands you a working infrastructure: active clients with an established relationship, staff who already know the systems and each other, suppliers, equipment, and a reputation you don’t have to build from a standing start. That lets a new owner focus on running and growing the practice rather than assembling one from raw materials.
It’s also worth dispelling a common assumption: buying doesn’t automatically mean spending more. Consideration for a practice is almost always paid in tranches — typically a portion on completion with the balance staged across the following one to three years, depending on the size of the deal — which means the up-front cash requirement is often far lower than people expect, and considerably lower than the working capital drain of running at a loss for two or three years while a cold start finds its feet.
What’s actually changed since we last wrote about this
MTD is now a day-one cost either way. Making Tax Digital for Income Tax Self Assessment became mandatory from April 2026 for sole traders and landlords above £50,000 income, with the £30,000 threshold following in April 2027 (Tax Adviser, 24 Mar 2025). A cold-start practice has to build MTD-compliant systems and processes from a blank sheet; a purchased practice usually already has them, or at least an established client base that’s already been through the transition once.
AML registration is also changing hands. HM Treasury confirmed in late 2025 that the FCA will become the single AML/CTF supervisor for accountancy, legal and trust and company service providers, replacing the current patchwork of professional-body supervisors; the consultation on the detail closed in December 2025 and the transition is expected to take several years once legislation is in place. For a brand-new practice, this means an additional layer of regulatory registration to navigate at exactly the point it can least spare the time; an established practice has generally already cleared this hurdle once.
AI is narrowing the catch-up gap a little, but not the trust gap. Cloud accounting and AI-assisted bookkeeping tools mean a new practitioner can get compliance work done faster than five or ten years ago — but they don’t solve the core problem of persuading a stranger to move their accountant, which is still built on relationships and word of mouth rather than software.
Consolidation is, paradoxically, creating more buying opportunities. With a growing share of the top UK firms now backed by private equity, and those groups focused on scale and integration, smaller or less strategically-fitting blocks of clients are increasingly being released back into the market by firms tidying up their portfolios — which means there is, if anything, more choice for a first-time buyer today than there was a decade ago, not less.
The five-year comparison
It’s often said that a meaningful share of accountancy start-ups take several years to match the income the practitioner could have earned as an employee at an established firm over the same period. We can’t stand behind a precise percentage for 2026 — we haven’t found a figure recent enough to trust — but the underlying pattern is one we still see consistently in practice: a cold start’s income curve is slow and back-loaded, while a purchased practice generates revenue from day one, because the clients, and the billing relationship with them, already exist.
What buying still requires you to check
None of this means buying is risk-free — it simply moves the risk somewhere more manageable: due diligence, rather than blind faith in your own client-development skills.
- Client concentration — is a large share of the fee income sitting with one or two clients who could walk on completion?
- Age and stickiness of the client bank — an ageing client base with no natural successors will shrink under you, however good a job you do.
- Staff terms and restrictive covenants — TUPE will carry existing staff across on their current terms, so it pays to know what those terms are before you commit.
- Systems and compliance history — has the practice kept up with MTD, AML file-keeping and PI renewals, or are you inheriting a backlog along with the clients?
A good broker will help you work through all of this before you sign anything, rather than leaving you to find out the hard way after completion.
Where a cold start still makes sense
We’d be overstating the case if we said a from-scratch practice never makes sense. For a practitioner with a strong existing referral network — from a former employer’s client contacts who follow them ethically, from a niche specialism nobody local currently serves, or from a professional network built over many years — starting cold can work, and some of our most interesting conversations are with people in exactly that position. What we’d caution against is starting from scratch simply because buying feels like the harder, more complicated option; in our experience it’s usually the other way round.
If the goal is a sustainable income at the earliest possible point, with the least amount of risk along the way, buying an established, profitable practice remains the far more reliable route in — and once you’ve bought the foundation, you have something real to build on.