Invoice finance unlocks cash tied up in unpaid invoices, giving UK businesses fast working capital without new debt.
Updated: 10th March 2026
Written by Michelle Dymond
Reviewed by Andrew Parry
Invoice finance enables UK businesses to improve their cash flow by releasing funds from unpaid invoices, providing faster access to working capital without waiting for customers to pay.
It addresses one of the biggest challenges for SMEs: lengthy payment terms that strain cash flow and restrict growth. Yet, while it offers liquidity and flexibility, the real cost of invoice finance is often misunderstood.
The majority of UK finance providers advertise a low headline invoice finance rate; however, in practice, total costs vary widely depending on turnover, industry, and facility type. Beneath that rate are multiple layers of charges that can add significantly to the overall cost.
This guide explains the different components of invoice finance pricing, highlights hidden fees, and helps you calculate your actual cost with our invoice finance calculator below.
This invoice finance calculator models your total cost by combining the service fee, discount charge, and optional add-ons. It reflects the structure explained in this guide.
Invoice finance fees typically consist of two elements: the service fee (sometimes called the factoring fee) and the discount charge (which represents interest on the funds advanced). These combine to form your total borrowing cost.
The service fee (sometimes referred to as the factoring fee or administration fee) covers the administration and management of your facility. It pays for ledger management (if using factoring), credit control, and account servicing. Most lenders calculate this as a percentage of your total invoice value.
Typical ranges:
This fee is usually charged monthly and may include a minimum usage requirement. Smaller firms or businesses with less predictable invoice volumes may face higher rates.
Example:
A construction firm factoring £200,000 per month at 1.5% pays £3,000 in service fees, excluding interest.
The discount charge is the interest you pay on the funds drawn against invoices. It covers the cost of borrowing the money for the period the funds are outstanding.
The fee is calculated as an annual percentage rate (APR) on the advanced funds, typically calculated on a daily basis but paid monthly. Therefore, the longer your customer takes to pay the invoice, the greater the discount charge you will accrue.
Most lenders calculate this fee using the Bank of England base rate or SONIA (Sterling Overnight Index Average).
For lower-risk, well-established businesses, discount margins are often around 2% – 3.5% over the Bank of England base. For smaller or higher-risk firms, margins can rise to around 4% – 6% above the base.
The primary difference in cost between invoice factoring and invoice discounting lies in the level of service provided.
| Feature | Invoice Factoring | Invoice Discounting |
|---|---|---|
| Visibility to customers | Your customers pay the factor directly | You retain control of collections |
| Service Fee range | Higher: 0.75% to 3% | Lower: 0.5% to 2.0% |
| Discount Rate range | Higher: 3% to 6% above base | Lower: 0.2% to 0.5% above base |
| Credit control | Handled by the finance provider (included in the higher Service Fee) | Handled by your business |
| Typical users | SMEs and fast-growing firms or those needing outsourced credit control. | Established businesses with higher turnover and solid in-house credit control. |
Established businesses with higher turnover and solid in-house credit control.
Factoring can work out more expensive because it includes debtor management and collections. Discounting is cheaper but requires robust internal finance processes.
Hidden fees can substantially affect your overall cost of using invoice financing. Some are unavoidable; others can be negotiated or waived.
Arrangement fees are a one-off charge to cover the initial administrative and legal work required to set up the facility, including audits and document preparation.
The fees are most often charged as a percentage of the total funding facility, typically within 1% – 2%. Approximately 20% of invoice providers charge these fees as a fixed fee instead which can range from a few hundred to several thousand pounds.
Some lenders offset or waive this fee for high-value clients.
Some contracts require you to finance a minimum value of invoices per month, quarter, or year.
If your monthly invoice volume drops below an agreed level, the provider charges you a “top-up” fee to meet the service charge target, even if you haven’t utilised the full facility. The minimum volume fee can cost several hundred pounds monthly.
For example:
Be aware that a small number of invoice finance providers quote a minimum monthly fee that exceeds the fee expected to be earned if the expected invoice totals are achieved. This means you would still be subject to a monthly minimum charge even if you met your minimum monthly invoice amount. In the example above, they may charge a minimum fee of £1,100.
You need to be wary of this when comparing quotes to ensure that a low service charge percentage is not superseded by a higher minimum charge that will be due.
Reconciliation fees are small administrative charges for resolving discrepancies, processing manual requests, or handling specific non-standard transactions in your account. Examples include processing a misallocated customer payment, resolving a complex credit note, or correcting errors made in submitting the ledger.
Reconciliation fees are charged only when a specific event requires extra effort to reconcile your accounts, and they are usually listed separately as a “disbursement” or “ancillary” fee. It is usually a fixed charge per incident or per hour of work (e.g., £25 per misposted payment).
A maintenance fee, also known as a management fee, is an alternative or supplemental charge for administration. It is usually a fixed monthly or annual charge, or a percentage of your overall facility limit.
It covers the minimum cost of keeping your account open and the facility available, even if you have a low usage month.
Note: the maintenance fee (fixed /base administrative cost), which is charged monthly, differs from the service fee (the primary administrative cost), which is charged every time you submit an invoice (or against total monthly turnover).
Ending an invoice finance facility early often requires 3-6 months’ notice or a flat termination charge.
The termination fee can be severe, sometimes amounting to a percentage of your remaining projected service fees or a fixed lump sum. Review the exit clause before signing the contract.
Bad Debt Protection (BDP), also known as Non-Recourse, is a financial product, often an add-on to invoice finance, that provides a safety net against a customer failing to pay due to insolvency or default.
It is a popular alternative to taking out a credit insurance policy, which can be more expensive.
The cost of the bad-debt protection/non-recourse option starts at around 0.35% of the invoice total funded and can be as high as 1%. The level you are quoted will depend on the type of facility that you require and the nature of your business. It can be worthwhile for sectors with high concentrations of debtors.
Scenario 1: Small Trader
Factoring – outsourced credit control
Scenario 2: Large Recruiter
Discounting – Confidential
| Provider type | Typical advance rate on invoices | Typical service fee range | Typical discount margin over base | Best for |
|---|---|---|---|---|
| High street banks | Around 75% to 90% | Often toward the lower end for larger firms | Around 2% to 4% above base for stronger firms | Established businesses with solid balance sheets and stable turnover |
| Specialist invoice finance providers | Around 80% to 95% | Roughly 0.5% to 3% of the invoice value or turnover | Around 2.5% to 5% above base, depending on risk | SMEs and growing firms that want flexible funding and sector expertise |
| Selective or spot factoring platforms | Up to around 80% to 90% on chosen invoices | Higher per-invoice fee for one-off use | Often priced as a single blended percentage per 30 to 90 days | Businesses that only want to fund occasional invoices or specific debtors |
| Financing Alternative | Cost Structure | Typical UK Rate | Key Drawback vs. Invoice Finance |
|---|---|---|---|
| Unsecured Business Loan | Fixed interest rate (APR) on the full amount borrowed | 4% – 15% APR (Simple Interest) | Requires strong credit history; Fixed repayment schedule regardless of sales/cash flow. |
| Bank Overdraft | Annual arrangement fee + interest on the amount overdrawn | 6% – 11% APR | Flexible but has a fixed limit; can often be withdrawn by the bank without warning; not all businesses qualify. |
| Selective/Spot Factoring | Higher service fee for single invoices; No long-term contract | 3% – 5% of invoice value (Per-invoice fee structure) | More expensive than “whole-book” finance for ongoing use; administrative effort to select invoices. |
| Merchant Cash Advance | Factor rate (fixed fee) + repayment as % of future card sales | Factor Rate 1.2 – 1.5 (Repaying £1.20 – £1.50 for every £1 borrowed) | Very expensive; Repayment accelerates with good sales, potentially straining cash flow unexpectedly. |