How much does it cost to buy a business in the UK?
A clear budget for UK business buyers covering purchase price, professional fees, tax, stock and the working capital you need on day one.
Last updated August 2026. 6 min read.
Budget the full cash need
The asking price is only part of what you need to buy a UK business. A complete budget includes your deposit or equity cheque, professional fees, any stamp duty or tax on shares or assets, stock and WIP at completion, and enough working capital to run payroll and suppliers in the first months.
Buyers who only raise funds against the headline price often scramble late in the process. Lenders and solicitors will ask for a sources and uses statement. Build one early, even if numbers are indicative.
- Purchase price for shares or assets
- Deposit or equity contribution required by the lender
- Legal fees for you and any bank counsel costs you must cover
- Accountancy or quality of earnings work
- Stamp taxes and filing fees where they apply
- Stock, deposits, and day-one working capital
Professional fees
On SME deals between £250k and £2m, buyer-side legal fees commonly land in the low-to-mid thousands for a straightforward share sale, and higher where leases, licences, TUPE or complex warranties appear. Asset purchases can look simpler on paper, yet still need careful contract and property work.
Accountancy diligence ranges from a focused desktop review to a fuller quality of earnings exercise. For a first acquisition, budgeting several thousand pounds for financial due diligence is normal. Spending less than that can be false economy if the profit figure is soft.
Broker fees are usually paid by the seller on UK SME mandates. Confirm that in writing. Some introductions or sell-side success fees can still affect negotiations indirectly if the seller is protecting net proceeds.
Tax and deal structure
Share purchases and asset purchases have different tax and risk profiles. Share deals typically transfer the company as a going concern, including historic liabilities, which is why warranties and disclosure matter. Asset deals can leave unwanted liabilities behind, but may trigger different tax treatments and transfer costs on property, vehicles or intellectual property.
Stamp duty on shares and stamp duty land tax on property can change the cash need. Rules depend on the structure and the assets involved, so take advice for your specific deal rather than copying a forum answer. Build a contingency line in your budget until your accountant confirms the position.
If you buy through a new holding company, also budget formation costs, banking setup and any initial group VAT or PAYE administration. These are small compared with the purchase price, yet they delay completion when ignored.
Stock and working capital
Retail, hospitality, distribution and product businesses often require stock to be purchased at completion on top of goodwill. Agree the valuation method early: cost, counted stock at completion, or a normalised working capital target. Ambiguity here creates last-week arguments.
Service businesses still need working capital. Think about rent deposits, PAYE timing, VAT cycles, retainer billing lags and supplier terms. A deal can be solvent on paper and still leave you short of cash in month one if customers pay slowly and staff are paid weekly.
As a planning habit, model the first 90 days of cash separately from the acquisition funding. If that model only works when everything goes right, raise more headroom before you exchange.
Illustrative buyer budgets
Every deal differs, but these sketches show why the headline price understates cash required.
- £400k share purchase: equity deposit plus fees and working capital can push immediate cash need well above £150k even with bank support
- £900k hospitality deal with stock: budget stock, rent deposits and a fee pack on top of the price
- £1.5m services acquisition: higher legal and diligence spend, often with deferred consideration reducing day-one cash
Use live listings to estimate purchase price, then add a fee and working capital overlay before you decide whether the deal fits your capital. Dealdoor's finance guide explains how deposits, lending and vendor finance usually combine on UK SME purchases.
Buyer cost checklist
- Agree whether you are buying shares or assets
- List every fee quote with a 10-20% contingency
- Confirm tax advice in writing for your structure
- Set a stock and working capital completion mechanism
- Check lender fees, valuation fees and brokered product costs
- Keep a reserve for surprises found in diligence
The buyers who complete calmly are rarely the ones who found the lowest asking price. They are the ones who funded the whole journey to completion day.
Costs buyers underestimate
Beyond the obvious fee lines, watch for landlord consent costs, licence transfer fees, key-man insurance, systems migrations, rebranding, and retention bonuses for staff you cannot afford to lose. Regulated sectors can add inspection readiness and compliance upgrades that do not appear in the seller's historic profit.
There is also the cost of your own time. A first acquisition can absorb evenings and weekends for months. If you are leaving employment, model the gap between resignation and first drawings carefully. Personal cash flow stress is a deal risk even when the company itself is healthy.
Finally, budget for post-completion surprises that diligence did not fully remove: slower debtors, higher waste, seasonal dips, or a supplier price rise. A modest reserve is not pessimism. It is how buyers stay solvent while they learn the business.
- Landlord, local authority or regulator consent fees
- IT, POS, website and domain transfers
- Initial repairs deferred by the seller
- Training and handover support beyond the promised period
- Personal living costs during the transition
Practical budgeting rule
A useful working rule for many £250k to £2m purchases is to assume professional fees and day-one operating cash will add a meaningful percentage on top of equity already required for the price. The exact figure depends on sector and structure, but buyers who plan only for the asking price are the ones who renegotiate in week twelve.
Build the budget, share it with your accountant, and update it as diligence reveals stock levels and genuine working capital need. Then look at Dealdoor listings with that full cash number in mind, not just the headline price on the card.
Read the buyer finance guide
See how deposits, lender expectations and vendor finance usually fit together on UK SME deals.