Invoice Finance vs Overdraft
The main difference between invoice finance and a business overdraft is scalability and availability. Invoice finance advances 70-95% of your unpaid invoices and grows automatically as your turnover increases. An overdraft provides a fixed credit limit (typically £5,000-£50,000 for SMEs) that does not change. UK banks have scaled back SME overdraft lending over the long term, and UK Finance's quarterly Business Finance Review has reported subdued overdraft utilisation since 2020, which is part of why invoice finance has become the more accessible option for many invoice-heavy businesses.
UK banks have cut back SME overdraft availability since 2020, according to UK Finance's Business Finance Review, making invoice finance the more accessible working capital option for many B2B businesses. Invoice finance scales with your turnover, while an overdraft has a fixed limit that can be recalled on demand. More detail + scope
Summary
Invoice finance advances 70-95% of unpaid invoices and grows with your business (5-15% effective annual rate). Overdrafts provide a fixed credit line at 3-8% EAR but are increasingly unavailable, have fixed limits, and can be called in at any time. UK invoice finance and asset-based lending advances reached £22.7 billion in 2025, per UK Finance member data.
This page covers
Full side-by-side comparison of invoice finance vs business overdraft covering scalability, cost, availability trends since 2020, security requirements, and why businesses are switching
Not covered here
Individual provider reviews, detailed cost calculators, other financing comparisons
Side-by-Side Comparison
| Feature | Invoice Finance | Business Overdraft |
|---|---|---|
| How it works | Advance against invoices | Credit line on your bank account |
| Typical limit | 70-95% of outstanding invoices | £5,000-£50,000 (fixed) |
| Grows with business? | Yes - automatically | No - must apply to increase |
| Typical cost | Typically 5-15% effective annual rate (varies with ledger size and facility type) | 3-8% EAR + arrangement fee |
| Can be recalled? | 12-month contract minimum | Yes - repayable on demand |
| Availability (2026) | Widely available | Increasingly restricted |
| Security | Your invoices | Often personal guarantee/debenture |
| Best for | Invoice-heavy B2B businesses | Small, short-term cash gaps |
Why Businesses Are Switching
Overdraft lending to SMEs has been in long-term decline, and UK Finance's Business Finance Review has reported subdued SME overdraft utilisation since 2020. In practice, many businesses that previously relied on an overdraft have seen limits cut or facilities withdrawn at review, because a business overdraft is repayable on demand. At the same time, invoice finance has become more accessible, with lower minimum turnover requirements and faster setup.
UK invoice finance and asset-based lending advances reached £22.7 billion in 2025, according to UK Finance member data; the full sourced series is on our statistics hub. For B2B businesses with regular invoicing, invoice finance now provides more funding, more reliably, than a traditional overdraft.
Founder & Managing Director, Muswell Rose, founder and PSC of Best Business Loans Ltd
Adam is the founder and managing director of Muswell Rose and a founder of Best Business Loans Ltd, the company behind Market Invoice. He spent over three years as managing director of Penny, a UK invoice finance business, and his career runs through insurance, mortgages, commercial finance and fintech lending. He writes the Market Invoice library.
Last reviewed: 15 July 2026