Invoice Finance vs Supply Chain Finance: A Complete Guide for UK SMEs

Invoice finance lets you unlock cash tied up in your own unpaid invoices. Supply chain finance lets your buyers offer early payment to their suppliers, funded by a lender. Both improve working capital but from opposite ends of the transaction. This guide explains how each works, who qualifies, what each costs, and how to choose the right option for your UK business.

What is invoice finance and how does it work?

Invoice finance is an umbrella term covering invoice factoring and invoice discounting. In both cases, you raise an invoice to a customer, assign it to a lender, and receive an immediate advance, typically 80 to 90 per cent of the invoice face value. The remaining balance, less fees, is released once your customer pays.

With factoring, the lender manages your sales ledger and chases payment on your behalf. With discounting, you retain control of credit control and the arrangement is usually confidential. Both products are regulated in part by the FCA where credit broking is involved, and the industry trade body UK Finance publishes quarterly statistics on volumes.

Invoice finance is available to businesses with annual turnover broadly from around £100,000 upwards, though some specialist lenders will consider smaller firms. The key eligibility test is the quality and value of your debtor book, not the size of your balance sheet. Most facilities are governed by a debenture registered at Companies House.

What is supply chain finance and how does it work?

Supply chain finance, also called reverse factoring or approved payables finance, works in the opposite direction. A large buyer, often a retailer, manufacturer or public sector body, sets up a programme with a lender. Suppliers who sell to that buyer can then request early payment of approved invoices through the programme's online platform.

Because the lender is advancing money against the buyer's obligation to pay, the credit risk is assessed on the buyer's credit rating rather than the supplier's. This means the discount rate applied to early payments is typically lower than what a small supplier could obtain independently through invoice finance.

The buyer benefits because their payment terms to the lender remain unchanged, often 60 to 90 days, while suppliers receive cash within a few days of invoice approval. Prominent UK providers include Taulia, Greensill's successors, and several high street banks including Lloyds and HSBC. The product is largely off the supplier's balance sheet, though accounting treatment should be confirmed with your auditor under IFRS 7 disclosure rules.

How do the costs compare?

Cost structures differ significantly between the two products, and understanding this is essential before committing to either.

Invoice finance carries a service charge, typically 0.5 to 2.5 per cent of invoice value for factoring, and a discount charge on the funds drawn, usually priced at the Bank of England base rate (currently 4.50 per cent as of 18 March 2026) plus a margin of 1.5 to 4 per cent depending on your risk profile. There may also be minimum monthly fees, audit fees and CHAPS charges.

Supply chain finance is cheaper in most cases because the rate is anchored to the buyer's credit rating. A large investment-grade buyer might enable their suppliers to access early payment at base rate plus 0.5 to 1.5 per cent. For a small supplier who might otherwise pay base rate plus 3 per cent on their own invoice finance facility, the saving is material.

However, supply chain finance only applies to invoices approved by the buyer. If a buyer disputes or withholds approval, the supplier cannot draw early payment. Invoice finance gives you more autonomy because you control which invoices you raise and when you fund them.

Eligibility: who qualifies for each product?

Invoice finance eligibility is assessed primarily on your debtor book. Lenders look at the spread of debtors, average invoice values, payment history, and the proportion of invoices that are overdue or disputed. Businesses with one or two dominant customers, very small invoice values, or a high level of contra trading may find eligibility restricted or pricing elevated.

You will also need to pass standard KYC checks: Companies House registration, confirmation of beneficial ownership under the Money Laundering Regulations 2017, and satisfactory personal credit checks on directors. Most lenders will want at least six months of trading history, though some specialist providers will consider start-ups with strong order books.

Supply chain finance eligibility, from the supplier's perspective, is simpler. If your buyer runs a programme and your invoice has been approved in their system, you can request early payment. There is typically no credit assessment of the supplier beyond basic KYC. The barrier is whether your buyer operates a programme at all. Most do not. Supply chain finance programmes are almost entirely the domain of large corporates with significant buying power and the operational capacity to manage a multi-supplier platform.

Practical scenarios: which product fits which situation?

Consider a Yorkshire-based engineering subcontractor turning over £4 million, invoicing three large manufacturers on 60-day terms. They need working capital to pay wages and buy materials. Invoice discounting fits well: they have a solid debtor book, want to retain credit control, and can draw funds against invoices as soon as they are raised. They are not dependent on any buyer running a programme.

Now consider a Sheffield food producer supplying a national supermarket chain. The supermarket runs a supply chain finance programme through its bank. The food producer's own credit rating is modest, but the supermarket is investment-grade. By joining the programme, the food producer can access early payment at a rate anchored to the supermarket's credit quality, potentially saving 1 to 2 percentage points compared with its own invoice finance facility.

In practice, many businesses end up using both. A company supplying one large buyer through their supply chain finance programme may still use invoice finance for the remainder of their ledger. The two products are not mutually exclusive, but you should check with your invoice finance lender whether invoices covered by a supply chain finance programme are excluded from your facility, as some debentures will conflict.

Key risks and things to watch

Invoice finance carries concentration risk. If one large customer accounts for more than 25 to 30 per cent of your ledger, most lenders will apply a concentration limit, meaning you cannot draw the full advance rate against that debtor. If that customer pays slowly or disputes invoices, your available funding drops sharply.

Supply chain finance carries programme dependency. If your buyer withdraws the programme, is acquired, or changes lender, your access to cheap early payment disappears at short notice. The collapse of Greensill Capital in 2021 illustrated this risk vividly, leaving some UK suppliers without expected liquidity overnight. Always maintain an alternative working capital facility as a backstop.

Both products require careful attention to your debenture and any fixed and floating charge registered at Companies House. An existing charge in favour of a high street bank may prevent you from assigning your receivables to an invoice finance lender without the bank's consent. Take legal advice if you are unsure whether your existing banking documents restrict your ability to use either product.

How to choose and what to do next

Start by mapping your debtor book. If you invoice multiple customers across different sectors and need flexible, ongoing working capital, invoice discounting or factoring is likely to be the better fit. If you supply one or two large buyers who already operate supply chain finance programmes, enquire directly with their procurement or treasury teams about joining.

Get at least two or three quotes for any invoice finance facility and compare them line by line, looking at the advance rate, discount charge margin, service charge, minimum fees and any additional charges. Ask each lender to confirm whether participation in a buyer's supply chain finance programme would affect your facility eligibility.

If you are a finance director weighing up both options simultaneously, model the annual cost of each against your average debtor days and turnover. The arithmetic is usually straightforward and the difference in annualised cost can be significant. A broker regulated by the FCA can help you access the market and compare terms without approaching lenders individually. Always confirm whether the broker charges a fee or is remunerated by the lender, as both models exist in the UK market.

Checklist

• ☐Map your debtor book: number of customers, average invoice value, payment terms and any concentration above 25 per cent
• ☐Confirm whether any existing bank debenture restricts assignment of receivables before approaching any new lender
• ☐Ask your largest buyers whether they operate a supply chain finance programme and on what terms suppliers can join
• ☐Obtain at least three invoice finance quotes and compare advance rate, discount margin, service charge and minimum fees side by side
• ☐Model the annualised cost of each option against your average debtor days to identify the cheaper source of working capital
• ☐Take legal or accountancy advice on balance sheet treatment and IFRS 7 disclosure obligations if considering supply chain finance

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