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Business finance for unpaid invoices

Invoice finance unlocks cash tied up in unpaid B2B invoices. Most UK SMEs use either invoice factoring (the lender manages collections too) or invoice discounting (you stay in control of customer relationships). Selective finance funds one invoice at a time without committing the whole ledger, which suits businesses with one or two large customers. Lenders look at debtor concentration, invoice quality, and whether customers actually pay close to their due dates. Lendrly maps the published criteria of UK invoice finance providers so you can shortlist the ones likely to look at your customer profile.

Why this use case matters

B2B businesses on 30–90 day payment terms routinely have a meaningful percentage of their turnover tied up in unpaid invoices. That money is yours in principle, but the working-capital squeeze is real — payroll, suppliers and overheads do not wait. Invoice finance lets you bring forward up to 80–95% of an invoice's value within 24–48 hours of raising it.

Underwriting weighs the debtor as much as the borrower. Big-name customers with strong credit scores unlock higher advance rates and better pricing. Concentrated debtor books (one customer over 30% of the ledger) or disputed invoices reduce advance rates. Lendrly explains how UK invoice finance lenders frame these decisions so you can prepare your debtor list before applying.

Finance types that usually fit

Based on how UK lenders typically underwrite this use case, the following finance categories are the most common fit:

Finance types that usually don't fit

These categories are mentioned for completeness but typically aren't appropriate for this use case:

Eligibility questions UK lenders typically ask

  • Are your customers other businesses paying on 30–90 day terms?
  • Are invoices raised after the work or goods have been delivered?
  • Is your debtor book diversified (no single customer dominating)?
  • Are most customers credit-checkable and paying broadly on time?
  • Are recent invoices free of disputes, credit notes or set-off?
  • Is the business UK-based with a UK business bank account?

Documents to prepare

  • Most recent aged debtor report
  • Sample invoices and terms of business
  • Business bank statements (3–6 months)
  • Latest filed accounts
  • Director ID and proof of address
  • Customer contracts where available

UK lenders that often look at this use case

The lenders below publish criteria consistent with this use case. Final approval is always subject to lender underwriting.

Frequently asked questions

Factoring or discounting — which is right for my business?
Factoring suits businesses that want the lender to manage credit control. The customer sees the invoice finance lender. Discounting keeps collections in-house and is invisible to customers, but lenders generally want stronger accounts and a larger ledger to offer it.
Can I finance just one invoice without committing the whole ledger?
Yes. Selective or single-invoice finance is available from providers like Kriya and several others. It is more flexible but unit cost is higher than whole-ledger facilities.
Will my customers know I'm using invoice finance?
Yes for factoring (the lender is named on the invoice). For confidential invoice discounting, no — collections continue under your name. Confidential facilities are typically reserved for businesses with stronger accounts.
What advance rate can I expect?
Most UK invoice finance lenders advance 80–90% of eligible invoices, with the balance released when the customer pays. Concentration limits, dispute history and debtor credit quality affect the rate.
Can I use invoice finance with a B2C business?
Generally no. Invoice finance is built for B2B trade. B2C businesses with card sales should look at merchant cash advance instead, and ecommerce platforms suit revenue-based finance.

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