Most business sales do not fall over because the business is bad. They fall over because the numbers do not stand up to scrutiny, the paperwork is messy, or the seller cannot answer basic questions quickly.
If you want a smooth sale and a strong price, your goal is simple: make it easy for a buyer to trust what they are seeing. That means clean financials, clear evidence, and no surprises.
I have spent more than 15 years supporting business sales across the UK. The sellers who get the best outcomes usually do the same things early. They tidy up the accounts, prove sustainable profit, and present the business in a way that a buyer can understand in one sitting.
This guide focuses on practical financial steps you can take before you go to market, plus a checklist you can use to stay organised.
Start with the buyer’s mindset
Buyers are trying to answer three questions:
- How much profit does this business really make?
- How reliable is that profit over the next two to three years?
- What could go wrong, and what would it cost to fix?
Everything you prepare should help them answer those questions with confidence.
1) Get your accounts and management figures in order
Buyers will always ask for annual accounts, but many deals are won or lost on the quality of your recent management figures.
Aim to have:
- The last three years of full accounts
- Year to date management figures for the current year
- Monthly breakdowns of revenue, gross margin, and key costs
- A clear explanation of any unusual movements
If your bookkeeping is behind, or your management figures are inconsistent, fix that first. A buyer will assume gaps mean risk. Risk reduces price.
If you run a limited company, keep on top of Companies House filing requirements. GOV.UK sets out that private limited companies generally have 9 months after the financial year end to file annual accounts, and that late filing can lead to penalties.
2) Normalise your profit in a way a buyer will accept
Most sellers want buyers to look at “underlying profit”. That is fair, but it needs to be credible.
Common adjustments include:
- One-off legal disputes or exceptional costs
- Owner benefits that will not continue, such as private vehicle costs
- A one-time marketing push that will not repeat
What buyers dislike is a long list of add-backs that feel like optimism.
A good rule is this: if you cannot evidence it quickly, do not expect a buyer to accept it. Keep a simple schedule of adjustments and supporting evidence.
3) Prove revenue quality, not just revenue size
A buyer is not only paying for turnover. They are paying for the reliability of future earnings.
To show quality, prepare:
- Customer concentration analysis
- Repeat client percentage or contract retention, where relevant
- Average order size and frequency trends
- Any major customer wins or losses, with explanation
If one customer represents a large percentage of revenue, be upfront. It is not always a deal breaker. It does change deal structure and buyer confidence, so it needs handling properly.
4) Understand your working capital, it affects price and deal terms
Working capital is one of the most misunderstood parts of selling a business.
A buyer may be happy with your profit, but still negotiate on:
- Stock levels
- Debtors and creditor days
- Cash float requirements
- Seasonality impacts
If your business needs cash tied up in stock or debtor balances to operate, a buyer will factor that into the effective price.
Before you sell, work out:
- Typical stock level needed to trade
- Average debtor days and overdue balances
- Any creditor terms that keep the business afloat
If you can improve debtor collection and reduce aged stock before going to market, you often make the business more attractive and easier to finance.
5) Keep tax compliance clean and current
Tax issues are a common source of delays and renegotiation.
For limited companies, there are clear deadlines for Corporation Tax returns and payments. GOV.UK explains that the Company Tax Return deadline is generally 12 months after the end of the accounting period, and Corporation Tax is usually due 9 months and 1 day after the period ends.
For VAT registered businesses, keep records properly and ensure filings are up to date. HMRC’s VAT record keeping notice explains that you generally must keep VAT records for at least 6 years.
Buyers do not expect you to be perfect. They do expect you to be compliant and organised.
Practical steps that help:
- Reconcile VAT accounts and keep filing history ready
- Make sure PAYE and pension obligations are up to date
- Address any overdue Corporation Tax or late filings before marketing
If there are historic issues, disclose them early and show the resolution plan. Surprises late in the deal destroy trust.
6) Build a simple financial pack that answers buyer questions
A strong seller pack reduces “back and forth” and keeps momentum.
Include:
- Three years accounts and current year management figures
- Monthly revenue and margin trend for at least 24 months
- Schedule of adjustments to profit, with evidence
- Customer concentration breakdown
- Stock valuation method and typical stock level
- Summary of key contracts and recurring revenue
- Debt schedule and any finance agreements
- Capex summary, what has been bought and what needs replacing
If you prepare this early, you shorten diligence and improve negotiation position.
7) Forecasts should be realistic, not sales pitch
Forecasts can help a buyer, especially in growing businesses, but only if they are grounded.
A good forecast includes:
- Assumptions in plain English
- Evidence for growth drivers, such as pipeline or contracts
- Clear cost assumptions, especially wages and materials
- A downside scenario, what happens if sales dip
Buyers do not expect certainty. They want realism and thoughtful planning.
8) Get your “owner dependency” costed properly
One of the biggest hidden financial issues in sales is the owner who does too much.
If you are the main salesperson, operations lead, or delivery person, buyers will ask:
- What happens if you leave?
- What would it cost to replace you?
Before you sell, estimate the cost of replacing your role, even if you do not intend to hire before sale. It helps you price the business correctly and avoid disputes when buyers model the same thing.
A practical pre-sale finance checklist
Use this as your working list before you go to market.
Accounts and reporting
- Last 3 years annual accounts ready
- Year to date management figures prepared
- Monthly revenue and gross margin for 24 months
- Clear explanation for any unusual movements
Profit and adjustments
- Schedule of one-off costs and owner add-backs
- Evidence for each adjustment
- Updated view of underlying profit after adjustments
Working capital
- Typical stock level documented
- Stock valuation method confirmed
- Debtors list and aged balances reviewed
- Creditor terms and key supplier arrangements noted
Tax and compliance
- Corporation Tax filings and payments up to date
- VAT returns and payments up to date
- PAYE and pension obligations current
- VAT record keeping in order and retained correctly
Buyer readiness
- Customer concentration summary
- List of key contracts and renewal dates
- Debt and finance agreements listed
- Basic forecast with assumptions prepared
- Summary of capex and asset condition
If you can tick most of this off before marketing, you usually reduce negotiation friction and protect value.
John Gaskell
The strongest sales are not always the ones with the biggest profits. They are the ones where the seller can evidence performance quickly, explain the numbers calmly, and remove uncertainty before a buyer has a chance to worry. If you want a better deal, make it easier for the buyer to trust what they are buying.
Sources
UK Government, Accounts and tax returns for private limited companies (Companies House filing and Corporation Tax deadlines): https://www.gov.uk/prepare-file-annual-accounts-for-limited-company
UK Government, Company Tax Returns (12 month filing deadline and Corporation Tax payment timing): https://www.gov.uk/company-tax-returns
UK Government, Running a limited company, company and accounting records (how long to keep company records): https://www.gov.uk/running-a-limited-company/company-and-accounting-records
HMRC, Record keeping for VAT (VAT Notice 700/21, keep VAT records for at least 6 years): https://www.gov.uk/guidance/record-keeping-for-vat-notice-70021
UK Government, Self-employed records, how long to keep your records (5 years after the 31 January deadline): https://www.gov.uk/self-employed-records/how-long-to-keep-your-records
