Invoice Factoring vs Invoice Discounting UK: Key Differences Explained

Invoice Factoring vs Invoice Discounting: What UK Credit Teams Need to Know

Invoice factoring and invoice discounting are two of the most widely used forms of receivables finance in the UK. Both products advance cash against unpaid invoices, helping businesses bridge the gap between raising an invoice and getting paid. But they work differently, attract different types of company, and carry different implications when you are assessing a customer or supplier for credit risk. This guide explains how each product works, what it costs, and what choosing one reveals about a company’s financial position.

How Invoice Factoring Works

Invoice factoring is an arrangement in which a business sells its unpaid invoices to a specialist funder — the factor. In return, the factor advances a proportion of the invoice value immediately, typically 80–90%, and remits the remaining balance minus fees once the end customer pays.

The defining feature of factoring is that the factor takes over the credit control function. It chases payment from your customers, manages the sales ledger, and contacts debtors directly. Because customers pay the factor rather than you, factoring is almost always a disclosed arrangement — your customers will know you are using it.

Worked example: A UK manufacturing SME raises a £50,000 invoice. The factor advances £42,500 (85%) within 48 hours. When the customer pays in full after 60 days, the factor remits the remaining £7,500 minus its service fee — leaving the SME with approximately £6,800 net. The business receives working capital in days rather than waiting two months.

How Invoice Discounting Works

Invoice discounting advances cash against invoices in the same way, but the credit control function remains entirely with the borrowing business. You continue to chase debtors yourself, collect payments into a designated trust account, and repay the drawdown when cash arrives. Because customers still pay you directly and may never know a funder is involved, invoice discounting is typically a confidential arrangement.

Advance rates and fee structures are broadly similar to factoring — typically 80–90% of invoice face value, plus a service fee and a discount charge on funds drawn. The key difference is operational: who runs the ledger.

Invoice discounting is generally available only to more established businesses with:

• Turnover of at least £250,000–£500,000 (provider thresholds vary)
• A robust internal credit control function the funder is satisfied with
• Reliable, well-maintained debtor records
• A track record of low bad debt

Smaller or newer businesses are typically directed towards factoring, where the funder manages the ledger and the associated credit risk.

Practical tip: Some providers offer hybrid facilities. A business may start on disclosed factoring and migrate to confidential discounting as its internal processes mature and the funder gains confidence in the underlying ledger quality.

Cost Structures: What to Expect

Both products carry two main charges:

Service fee — a percentage of turnover assigned to the facility, typically 0.5–3% depending on volume, sector, and debtor quality. Factoring attracts a higher service fee because it includes credit control as a managed service.

Discount charge — calculated on funds drawn, typically 1.5–4% above the Bank of England base rate. At a base rate of 4.25%, that places the effective interest rate on drawn funds at roughly 5.75–8.25% per annum.

For a business drawing £500,000 at any given time, the annual interest cost alone could reach £28,750–£41,250. This is why receivables finance is generally used where the cash flow benefit clearly outweighs the cost, or where conventional bank credit is restricted or unavailable.

Invoice finance providers operating regulated credit agreements in the UK must be authorised by the Financial Conduct Authority. Businesses considering a facility should review the terms carefully — in particular concentration limits (caps on how much of the ledger can come from a single debtor), minimum notice periods for termination, and whether the facility is full recourse (the funder can reclaim advances if a debtor fails to pay) or non-recourse (the funder absorbs the bad debt).

What Invoice Finance Reveals About a Counterparty

From a credit assessment perspective, knowing that a customer or supplier uses invoice finance is useful context — but it requires careful interpretation.

It does not automatically signal distress. Invoice finance is a rational working capital tool, particularly in sectors with long payment terms such as construction, manufacturing, and staffing. Many financially healthy UK SMEs use it as a matter of course.

It reveals where cash is tied up. When a company has assigned its invoices to a funder, the corresponding debtor balances on its balance sheet may be subject to a charge registered at Companies House. Reviewing the charges register should be part of every credit assessment: a debenture or fixed charge over book debts is a common indicator of a receivables finance arrangement. FinancialInsight AI surfaces registered charges automatically alongside financial ratios, so your team sees the full liability picture in one view rather than navigating the register case by case.

The type of product matters as a signal. Factoring tends to be used by smaller, younger businesses or those with weaker internal processes. Confidential invoice discounting is reserved for companies that have met stricter eligibility criteria. A business that has been on disclosed factoring for several years without progressing to discounting suggests either that its credit control has not improved, or that its track record has not given funders the confidence to offer a confidential facility. Either way, it is worth noting alongside the red flags visible in UK company accounts — deteriorating current ratios, rising creditor days, and shrinking cash balances.

Combining invoice finance with other short-term borrowing — such as asset finance, director loans, or HMRC time-to-pay arrangements — can indicate that a working capital gap is widening rather than being managed. Running a comprehensive company credit check should include a review of all registered charges, recent filed accounts, and any County Court Judgements, alongside the invoice finance picture.

Invoice Finance and VAT

The HMRC treatment of invoice finance is a common source of confusion. The advance from the funder is not revenue — it is a drawdown against a debt facility. VAT on assigned invoices is owed when the invoice is raised, not when cash is received from the funder. A business using factoring or discounting remains fully responsible for accounting for and paying VAT to HMRC in the normal way.

This matters for credit risk assessment because a business managing a large factored ledger can accumulate significant VAT liabilities that are invisible in the headline accounts until an HMRC demand arrives. The Finance Act 2020 restored HMRC’s status as a preferential creditor in insolvency, meaning large unpaid VAT and PAYE obligations rank ahead of unsecured trade creditors — and can rapidly erode any recoveries available to suppliers who have extended open credit terms.

Factoring vs Discounting: Making the Right Choice

For businesses that qualify for both products, the decision turns on four questions:

1. 1Confidentiality — does it matter whether customers know you are financing your ledger? If yes, only discounting preserves that.
2. 2Internal resource — do you have effective credit control in-house? If not, factoring provides that function and is probably the right fit.
3. 3Cost — factoring costs more because the service fee includes ledger management. If your own credit control is already strong, you may be paying for a service you do not need.
4. 4Control — invoice discounting typically offers more flexibility over which invoices to assign and when to draw down.

FinancialInsight AI helps credit teams understand where a counterparty sits in this picture — combining registered charges, director background signals, and financial ratios in a single dashboard so every credit decision is grounded in the full picture, not just last year’s filed accounts.

Key Takeaways

• Invoice factoring sells invoices to a funder who takes over credit control and chases debtors directly; invoice discounting advances cash against invoices while you keep credit control in-house
• Factoring is almost always a disclosed arrangement visible to your customers; invoice discounting is typically confidential — customers continue paying the business directly
• Advance rates are typically 80–90% of invoice face value; discount charges run at roughly 1.5–4% above the Bank of England base rate on funds drawn
• Invoice discounting is reserved for more established businesses and typically requires turnover of at least £250,000–£500,000 and a proven internal credit control function
• A fixed or floating charge over book debts registered at Companies House is a common indicator of invoice finance — always review the charges register as part of credit due diligence
• Invoice finance does not by itself signal financial distress, but when combined with rising creditor days, multiple secured creditors, or HMRC arrears, it warrants closer scrutiny
• VAT on assigned invoices remains the borrowing business’s liability regardless of when the funder advances cash; HMRC’s preferential creditor status in insolvency means large unpaid VAT can significantly erode trade creditor recoveries