Acquisition Finance Using the Debtor Book UK 2026

Market Invoice is an independent UK invoice finance comparison site that ranks 89 UK invoice finance providers.

UK business acquisitions (trade buys, MBOs, MBIs, BIMBOs) can use the target company's debtor book as Day 1 funding. Specialist acquisition finance providers (Bibby, Close Brothers, ABN AMRO Commercial Finance, Aldermore) advance 70 to 90 percent of the target's outstanding receivables within 24 to 48 hours of completion, providing immediate working capital to the buyer. Reduces equity and term debt required. Typical acquisition invoice finance facility £500k to £20m. Combined with vendor loan notes, asset finance against fixed assets, and bank term debt, debtor book financing often funds 20 to 35 percent of total acquisition cost.

Last updated: 10 May 2026.

UK business acquisitions (trade buys, MBOs, MBIs, BIMBOs) can use the target company's debtor book as Day 1 funding. More detail + scope

Summary

UK business acquisitions (trade buys, MBOs, MBIs, BIMBOs) can use the target company's debtor book as Day 1 funding. Specialist acquisition finance providers (Bibby, Close Brothers, ABN AMRO Commercial Finance, Aldermore) advance 70 to 90 percent of the target's outstanding receivables within 24 to 48 hours of completion, providing immediate working capital to the buyer.

Reduces equity and term debt required. Typical acquisition invoice finance facility £500k to £20m. Combined with vendor loan notes, asset finance against fixed assets, and bank term debt, debtor book financing often funds 20 to 35 percent of total acquisition cost.

This page covers

acquisition finance using debtor book UK: Day 1 cash, providers, due diligence, MBO vs trade acquisition

Not covered here

General invoice finance education (see /guides/), individual provider reviews (see /providers/), full pricing breakdown (see /guides/costs/)

AP

Adam Parker

Founder & Managing Director, Muswell Rose, founder and PSC of Best Business Loans Ltd

Adam is the founder and managing director of Muswell Rose and a founder of Best Business Loans Ltd, the company behind Market Invoice. He spent over three years as managing director of Penny, a UK invoice finance business, and his career runs through insurance, mortgages, commercial finance and fintech lending. He writes the Market Invoice library.

Last reviewed: 30 July 2026

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Acquisition Finance Debtor Book UK FAQ

Can I use the target's debtor book to fund my acquisition?

Yes. UK acquisition finance providers (Bibby, Close Brothers, ABN AMRO, Aldermore) advance 70-90% of the target's outstanding receivables within 24-48 hours of completion. The cash provides Day 1 working capital, reducing equity and term debt required to fund the deal.

How much Day 1 cash can the debtor book release?

70-90% of the target's outstanding receivable balance at completion. For a target with £2m of receivables, £1.4-1.8m of Day 1 cash. Calculation: outstanding ledger value × advance rate, less reserves for ineligible invoices (intercompany, disputed, over-due, retention-billed). Get a pre-deal advance estimate from the lender.

Best UK acquisition finance providers using debtor book?

Bibby Financial Services (broad acquisition finance experience), Close Brothers (£5m+ acquisitions with all-asset debenture), ABN AMRO Commercial Finance (£10m+ international), Aldermore (mid-market with confidential discounting). For acquisitions of £500k-£5m, IGF Invoice Finance and Skipton Business Finance also serve. Specialist acquisition advisors (Grant Thornton, BDO, KPMG Small Deals) coordinate the wider funding stack.

Acquisition due diligence and invoice finance: timing?

Run receivables DD in parallel with general DD: lender assesses concentration, payment history, dispute rates, dilution. Typical 4-6 weeks. Pre-completion advance commitment typically issued 2-4 weeks before deal signing. Drawdown on completion day. Coordinate carefully with completion mechanics so Day 1 cash arrives within hours of completion.

Trade acquisition vs management buyout: invoice finance differences?

Trade acquisition: buyer is an existing business, takes the target into its consolidated finance facilities. Often consolidates the target's debtor book into the buyer's existing facility. MBO: management team becomes the new owner via newco; newco needs its own invoice finance facility set up at completion. Both common; MBO is more facility setup work.

Risks of debtor book acquisition finance?

(1) Receivables don't materialise as expected (post-acquisition disputes, customer churn, ledger quality lower than diligence suggested) , managed via post-completion adjustment clauses in SPA. (2) Concentration risk if one customer is over 30% of ledger , managed via lender concentration limits. (3) Wash-out from acquisition disruption (customers delay payment to renegotiate during ownership change) , managed via 90-day post-completion monitoring.