What is invoice discounting and how does it work?

What Is Invoice Discounting?

Invoice discounting is a form of asset-based lending in which a finance company advances you a proportion of the value of your outstanding sales invoices. You continue to run your own credit control and collect payment from customers yourself — the finance company simply provides the cash flow acceleration.

It differs from invoice factoring (where the finance company takes over your credit control and collects from your customers directly) in one critical way: confidentiality. Under confidential invoice discounting (the most common arrangement in the UK), your customers pay into your own bank account as normal and never know a finance provider is involved.

How It Works — Step by Step

1. Raise an invoice You supply goods or services to a business customer and issue an invoice with standard payment terms (30, 60, or 90 days).

2. Upload the invoice You notify the invoice discounting provider — typically via an online portal or accounting software integration (most providers connect to Xero, Sage, and QuickBooks). The provider verifies the invoice is genuine and that the debtor is creditworthy.

3. Receive your advance The provider releases typically 80–90% of the invoice value within 24 hours. This cash can be used for payroll, stock, supplier payments, or any other business purpose.

4. Manage your own credit control You chase your customer for payment using your own processes. They pay into your business bank account as normal, with no indication that invoice finance is involved.

5. Notify the provider of payment When your customer pays, you notify the provider (or it’s automatically reconciled via your accounting software). The provider releases the remaining 10–20% — your reserve — minus their fees.

6. The cycle repeats As you continue to invoice customers, new invoices are added to the facility and new advances are released. The facility revolves continuously, scaling with your debtor book.

Confidential vs Disclosed Invoice Discounting

Confidential Invoice Discounting (CID)

The standard form. Your customers pay your bank account, see your company name on payment instructions, and have no visibility of the financing arrangement. Most appropriate for established businesses with strong customer relationships.

Disclosed Invoice Discounting

Less common. A notice on your invoices directs customers to pay into a designated trust account managed by the provider. Customers are aware of the arrangement. Used where the provider has concerns about control — for example, a newer business with less track record.

Costs

Invoice discounting costs have two components:

Service Fee (Admin Charge)

A fee for maintaining the facility, typically expressed as an annual percentage of total invoice turnover.

• Whole-ledger facilities: 0.1–0.5% of annual turnover
• Example: £2 million turnover facility at 0.3% = £6,000/year

Discount Charge (Interest)

Interest on the funds you’ve drawn, similar to a bank overdraft. Calculated daily on the outstanding advance balance.

• Typically: Bank of England base rate + 1.5–3.5%
• At current base rate of 4.5%: 6–8% per annum on drawn funds
• Example: £100,000 drawn for 45 days at 7%: £100,000 × 7% × (45/365) = £863

Combined Cost Example

Business: £3 million annual turnover, average debtor days of 55, 85% advance rate, service fee 0.25%, discount rate 6.5%

• Average debtors at any time: £3m × (55/365) = £452,055
• Average advance outstanding: £452,055 × 85% = £384,247
• Annual discount charge: £384,247 × 6.5% = £24,976
• Annual service fee: £3m × 0.25% = £7,500
• Total annual cost: £32,476 (1.08% of turnover)

This compares favourably to a £400,000 overdraft at 10% which would cost £40,000/year for a similar level of access.

Eligibility for Invoice Discounting

Most providers require:

Businesses invoicing the NHS, local authorities, or major corporates are generally viewed very favourably — the debtor quality is high and default rates low.

Who Uses Invoice Discounting?

Invoice discounting is most common in:

• Recruitment agencies — large volumes of invoices, long payment terms from corporate clients
• Wholesale and distribution — high-value invoices, predictable payment patterns
• Manufacturing — invoice values to justify whole-ledger setup costs
• Professional services — law firms, accountants, consultancies with corporate clients
• Staffing and outsourcing businesses — regular high-volume invoicing with reliable debtors

Setting Up a Facility

The setup process typically takes 1–4 weeks and involves:

1. Application — company accounts (2 years), aged debtors list, bank statements (3–6 months), schedule of existing funding
2. Due diligence — provider reviews debtor quality, any disputed invoices, existing charges on the book debts (existing lenders may hold a debenture)
3. Legal documentation — facility agreement, debenture, and assignment of book debts. Independent legal advice is strongly recommended.
4. Onboarding — accounting software integration, setting up the portal, processing first batch of invoices

Once live, most businesses find the facility largely transparent day-to-day — cash arrives in the account, customers pay as normal, and the bookkeeping is automated.