Acquisition finance UK – the funding stack used to buy a company – sits at the centre of every management buyout, bolt-on or trade purchase below the £25m mark. Few owner-managers can fund a deal of this size from cash, and few sellers will wait around while a buyer raises the money. The right structure decides whether the deal completes on time, completes at the right price, or never gets out of legals.
This guide walks through how acquisition finance works in the UK lower mid-market, what lenders look for, and the structures that come up most often. It is written for management teams, search funds and trade buyers looking at deals between £1m and £25m of enterprise value.
What Counts as Acquisition Finance?
Acquisition finance is any debt or quasi-debt raised to buy a business, a trading division, or a controlling shareholding. It covers four common transaction types in the UK lower mid-market:
- Management buyout (MBO) – the existing management team buys the company from the owner.
- Management buy-in (MBI) – an external team buys the company and steps in to run it.
- BIMBO – a hybrid where existing management is joined by an external partner.
- Bolt-on acquisition – an existing company buys a smaller competitor or complementary business to consolidate.
Each transaction looks different on paper but the funding logic is similar. The buyer combines senior debt, asset-based lending, mezzanine, vendor loan notes and equity into a stack that the target’s cash flow can service. Acquisition finance is not the same as working capital – it sits on a separate facility, with separate covenants and a separate amortisation profile.
How Lenders Underwrite Acquisition Finance Deals
Lenders back acquisition finance deals on the strength of the target’s cash flow, not the buyer’s balance sheet. A typical credit paper for an SME acquisition will focus on five tests:
- Adjusted EBITDA, normalised for owner add-backs and one-off items.
- Debt service coverage, usually 1.5x to 2.0x on senior debt.
- Quality of earnings, with a clean revenue base and customer concentration below 25%.
- Management capability, including time in sector and equity contribution.
- Sensitivity analysis on a downside case (revenue down 10-15%).
Most senior lenders will fund 2.5x to 3.5x adjusted EBITDA on a cash flow basis. Where the target carries strong receivables and stock, an asset-based lending facility can stretch the senior layer further by drawing against the borrowing base. The aim is to keep total leverage at a level the business can service even if performance dips in year one.
Common UK Acquisition Finance Structures
A typical UK lower mid-market deal layers three or four sources of capital. The table below shows how a £6m enterprise value transaction might be funded.
| Layer | Amount | Source | Indicative cost |
|---|---|---|---|
| Senior debt | £3.0m | Cash flow loan or ABL | 8-10% |
| Mezzanine | £1.0m | Debt fund or specialist lender | 12-15% |
| Vendor loan | £1.0m | Seller, deferred over 2-3 years | 5-7% |
| Equity | £1.0m | Management plus sponsor | n/a |
Senior debt sits at the top of the stack and is repaid first. Mezzanine sits behind senior, takes more risk and prices accordingly. Vendor loans are an attractive way to bridge a price gap and align the seller with the post-completion plan. Equity covers what debt cannot reach and signals that the buyer has skin in the game.
What Management Teams Need to Bring
The single biggest mistake first-time buyers make is underestimating how much hurt money lenders expect from management. As a rough rule, senior lenders want to see management equity equal to one year’s gross salary, with the team putting in personal cash that materially affects their position if the deal underperforms.
Beyond cash, lenders will want:
- A 100-day plan covering integration, retention and quick wins.
- Three years of monthly forecasts with covenant headroom modelled.
- Clear sector experience for each named member of the management team.
- A handover or earn-out structure if the seller is staying involved.
If management cannot fund their full equity ticket, sponsor equity or a search fund partner can cover the gap. That is a different conversation and one that should happen early, not the week before exchange.
How an Acquisition Finance Process Runs
A typical UK acquisition finance process takes 8 to 12 weeks from heads of terms to completion. The sequence is roughly: signed NDA and information memorandum, indicative offers from two or three lenders, lender selection and exclusivity, full credit submission, legal documentation in parallel with due diligence, and completion.
The points that derail deals tend to be predictable. Customer concentration, working capital adjustments, pension deficits and tax warranties show up late and can knock 10-20% off available debt if not flagged early. Running a competitive process with two or three credible lenders keeps pricing honest and gives the buyer optionality if one lender drops out at credit committee.
A specialist business loans broker will know which senior funds are open for new business this quarter, which mezzanine providers will stretch on a particular sector, and which deals each lender has just declined. That market intelligence is hard to replicate from cold calls.
Get in touch with Growth Business Finance for a free, no-obligation consultation. Call us on 020 3432 2341 or apply online at growthbusinessfinance.com today.