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Invoice Finance Cost Calculator

Last updated: April 2026

Invoice Finance Details

Finance type

Enter your typical single invoice value for this calculation.

£

The percentage of invoice value your lender will advance upfront. Typical range is 80%-90%.

%

You receive £8,500 upfront. £1,500 is held in reserve.

The annual interest rate charged on the advanced amount. Currently typically base rate + 1.5%-3%.

%

Charged on total invoice value. Covers the lender's credit control service.

%

How long your customers typically take to pay. The longer the terms, the higher the finance cost.

days

Your total monthly invoiced revenue. Used to calculate your monthly finance cost.

£

Per Invoice Breakdown

Invoice value£10,000
Advance upfront (85%)£8,500
Reserve on payment£1,500
Discount fee (30 days)£27.95
Service fee (1%)£100.00
Total cost£127.95 (1.28% of invoice)
Net received on payment£1,372.05
Effective APR4.00%

Monthly Cost

Monthly invoice volume£100,000
Estimated monthly cost£1,279.45
Annual cost estimate£15,353

Advance And Reserve Visual

Advance: £8,500Reserve: £1,500Cost: £127.95

Factoring vs Discounting

FactoringDiscounting
Credit controlLenderYou
Advance rate80-90%80-95%
Service feeYesNo
Typical APR4.00%4.00%
Best forSMEs with limited resourceLarger, established businesses

Cash Flow Timeline

Day 0

Invoice raised, £8,500 received.

Day 30

Invoice paid, £1,372.05 received.

Total received: £9,872.05. Cost deducted: £127.95.

What is invoice finance?

Invoice finance allows businesses to release cash tied up in unpaid invoices rather than waiting 30, 60, or 90 days for customers to pay. The lender advances a percentage of the invoice value upfront, then releases the remainder minus fees when your customer pays.

What is the difference between factoring and discounting?

With invoice factoring, the lender takes over credit control and collects payment from your customers directly. Your customers will know you are using a finance provider. With invoice discounting, you retain credit control and collect payment yourself. Your customers need not know you are using finance. Discounting typically carries lower fees but is usually only available to more established businesses.

What is a discount fee?

The discount fee is the interest charged on the amount advanced against each invoice. It is calculated daily on the outstanding advance from the date of funding until the invoice is paid. It is typically expressed as an annual percentage rate applied to the drawn balance.

Is invoice finance right for my business?

Invoice finance works best for B2B businesses with regular invoicing, good quality debtors, and payment terms of 30-90 days. It is less suitable for businesses with very small invoice values, consumer-facing businesses, or those with a small number of large customers due to concentration risk. Most providers require a minimum annual turnover of £100,000-£500,000.

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