What Types of Invoices Can Be Factored?
Invoices must be for completed work or delivered goods to creditworthy B2B customers on credit terms. Cannot factor: pro-forma invoices, deposits, invoices to consumers (B2C), retentions (usually), disputed invoices, intercompany invoices, or invoices for future work not yet completed.
Why This Matters
Invoice factoring providers advance cash against unpaid invoices, typically releasing 70-90% of the face value within 24 hours. But they only buy genuine trade debt from solvent UK companies with documented delivery. Understanding what qualifies prevents wasted applications and embarrassing declines.
A London IT contractor who invoices a Fortune 500 client for three months' consultancy delivered in January will sail through underwriting. A Birmingham builder invoicing a homeowner for an extension, or a Sheffield manufacturer invoicing its own Irish subsidiary, will be rejected immediately.
The distinction is critical because most UK SMEs hold a mix of invoice types on their sales ledger, and only the 'clean' B2B trade receivables unlock working capital. Providers have clear criteria because their risk models depend on the debtor's creditworthiness and the invoice representing completed, arms-length commercial supply.
Key Points
- Invoices must evidence completed delivery of goods or services before the advance is made. Work-in-progress, stage payments for uncompleted projects, or pro-forma invoices requesting deposits do not qualify.
- The debtor must be a UK limited company, public body, or substantial overseas corporation with verifiable credit history. Sole traders, partnerships without company structure, and consumers (B2C invoices) are excluded from most facilities.
- Credit terms typically must be between 7 and 120 days. Same-day payment invoices and those beyond four months are generally ineligible because they fall outside standard working capital cycles.
- Disputed invoices, those subject to retentions (common in construction), or invoices with extensive contra arrangements cannot be factored until disputes resolve and retentions release.
- Intercompany invoices between connected entities (parent-subsidiary, sister companies under common ownership) are rejected because the debtor and client are effectively the same economic unit, eliminating independent credit risk.
- Invoices to high-street consumers, even for substantial amounts, are ineligible. A £15,000 invoice to a homeowner for a conservatory cannot be factored, but the same value invoiced to a property developer for identical work on a commercial site can.
- Some sectors face additional scrutiny: recruitment agencies invoicing umbrella companies, hauliers with high fuel rebate elements, or businesses with significant service warranties may find certain invoice types excluded from advances.
Illustrative Example
Hypothetical: a Leeds-based design agency with £800,000 turnover completes a website project for a national retailer, invoicing £22,000 on 30-day terms. They also invoice a local startup founder £3,500 for brand work (sole trader client) and raise a £12,000 pro-forma to a manufacturer for an upcoming campaign starting next month.
The £22,000 corporate invoice qualifies immediately. At an 85% advance, a factor would release £18,700, typically within a day or two once delivery evidence (signed-off project, email acceptance) is verified. The £3,500 sole trader invoice is rejected outright. The £12,000 pro-forma is ineligible until the work completes and converts to a final tax invoice showing delivery.
Common Pitfalls
- Factoring stage payment invoices in construction before practical completion. Retention clauses (a percentage of each payment held back until after completion) mean you cannot access the full invoice value, and many funders exclude retention invoices entirely until final release.
- Assuming high-value B2C invoices qualify because the amount is substantial. A £50,000 invoice to a wealthy individual for bespoke joinery is still consumer credit, outside the scope of commercial invoice finance, regardless of size.
- Submitting invoices to connected parties. A holding company invoicing its trading subsidiary for management charges will be declined, even if both entities have separate bank accounts and the arrangement appears commercial.
- Factoring disputed invoices or those with quality complaints outstanding. Providers perform debtor verification calls. If the debtor flags any issue with goods, services, or pricing, the advance will be blocked until resolution.
What to Do Next
- Audit your sales ledger by debtor type. Separate corporate B2B invoices on defined credit terms from consumer sales, intercompany charges, and pro-forma requests. Only the first category will unlock funding.
- Check your standard terms and conditions confirm delivery precedes invoicing. If your contract allows invoicing before dispatch or go-live, you may need to adjust invoicing procedures to evidence completion for factoring purposes.
- Request a ledger review from providers like Close Brothers or Skipton Business Finance. They will analyse a sample of your invoices, identify eligible receivables, and estimate concentration risk if one or two debtors dominate your sales.
- If you issue retentions or stage payments, explore selective invoice finance or spot factoring on final invoices only, rather than whole-turnover facilities that require every qualifying invoice to be factored.
Related Questions
Can I factor invoices raised to government bodies or the NHS?
Yes, invoices to UK central government departments, local authorities, NHS trusts, and schools are highly desirable. Public sector debtors are considered ultra-low risk. Providers generally welcome these receivables and may offer a higher advance or lower fees against them because default risk is low.
What happens if an invoice becomes disputed after I have received the advance?
You remain liable to repay the advance immediately if the debtor withholds payment due to a legitimate dispute. The funder will deduct the advance from your reserve account or require direct repayment. This is why factoring agreements include indemnities and why you must only factor invoices for work you are certain has been accepted without issue.
Can I factor international invoices to overseas customers?
Many providers will factor invoices to creditworthy debtors in Western Europe, North America, and Australia. Emerging market debtors require specialist export factoring arrangements. Currency risk, jurisdiction for legal recovery, and debtor verification complexity mean overseas invoices usually attract lower advance rates and higher fees than domestic UK invoices.
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.
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