What this page covers
This page covers
All major working capital options compared side by side including invoice finance, overdrafts, revolving credit, merchant cash advances, business loans, and trade credit
Not covered here
Individual provider reviews, detailed cost calculators, sector-specific guides
Working Capital Options Compared
| Option | Best For | Typical Cost | Speed | Security Needed |
|---|---|---|---|---|
| Invoice Finance | B2B businesses with unpaid invoices | 0.5-3% of invoices | 3-10 days setup | Your invoices only |
| Business Overdraft | Small, short-term gaps | 3-8% EAR | Days-weeks | Personal guarantee |
| Revolving Credit Facility | Flexible drawdown needs | 8-20% on drawn amount | 1-4 weeks | Varies |
| Merchant Cash Advance | Card payment businesses | Factor rate 1.1-1.5x | 1-3 days | Future card revenue |
| Business Loan | One-off capital needs | 4-15% APR | 1-4 weeks | Property/assets often |
| Trade Credit | Extending supplier payment terms | 0-2% early pay discount lost | Immediate | Supplier relationship |
Not sure how much working capital you actually have? Our free working capital calculator takes seven balance-sheet figures and returns your working capital, current ratio and how much cash your debtor book could release.
Why Invoice Finance Dominates
UK Finance says its invoice finance and asset-based lending members provide well over £20 billion at any one time. Invoice finance is that widely used because it solves the single most common cash flow problem: you've done the work, raised the invoice, and you're waiting to get paid. It converts that wait into immediate cash.
Unlike an overdraft (fixed limit, can be recalled), invoice finance scales automatically. More invoices = more available cash. It's secured against your invoices, not your house. And it doesn't require good credit - the provider assesses your customers, not you.
Tens of thousands of UK businesses use invoice finance and asset-based lending (UK Finance). Recruitment, manufacturing, transport, construction and wholesale are among the main users. See our industry guides for how it works in your specific sector.
Working Capital by the Numbers
The UK working capital market is substantial. According to UK Finance, the current landscape looks like this:
£20bn+
Invoice finance and ABL at any one time (UK Finance)
Tens of thousands
UK client businesses supported at any one time (UK Finance)
£315bn+
Combined 2024 turnover of the businesses supported (UK Finance)
How to Choose the Right Working Capital Product
The right product depends on three things: what type of business you run, how quickly you need the money, and what security you can offer. Here is a decision framework:
- You invoice other businesses (B2B): Invoice finance is almost certainly your best option. It scales with your sales, requires no property security, and most providers can set you up within a week. Start with our free comparison.
- You take card payments (retail, hospitality, e-commerce): A merchant cash advance gives you a lump sum repaid as a percentage of daily card sales. No fixed monthly payment - if sales dip, repayments dip automatically.
- You need a general credit buffer: A business overdraft or revolving credit facility provides a flexible credit line you can draw on as needed. However, overdrafts are increasingly difficult to obtain - if your bank has declined you, invoice finance is the most common alternative.
- You need a one-off sum for a specific purchase: A term loan gives you a fixed amount with fixed repayments. Cheaper than invoice finance for one-off needs, but less flexible for ongoing working capital.
- You want to extend supplier payment terms: Trade credit or supply chain finance lets you pay suppliers later while they get paid sooner. Works well alongside invoice finance to optimise your entire cash conversion cycle.
Many businesses use a combination - invoice finance for day-to-day working capital plus a term loan for equipment or a merchant cash advance for seasonal peaks. The key is matching the product to the specific cash flow gap you are trying to bridge.
Cash Flow Gaps: The Root Problem
Every working capital need boils down to a timing gap: money goes out before money comes in. The question is which gap you have:
"My customers pay late"
→ Invoice finance bridges the gap between invoicing and payment.
"I need to buy stock before I can sell it"
→ Stock finance or purchase order finance funds the purchase. Invoice finance then takes over once you invoice.
"I need to pay staff before clients pay me"
→ Recruitment factoring - submit timesheets Monday, fund payroll Friday.
"My bank cut my overdraft"
"I won a big contract but can't afford to deliver it"
→ Contract finance - get funded from your first invoice on the new contract.
Working Capital Guides
Cash Flow Problems
The 7 most common causes and how to fix each one.
Late Payment UK
Your legal rights, the Late Payment Act, and practical solutions.
Funding Business Growth
Working capital options for growing businesses - from invoice finance to equity.
Seasonal Cash Flow
Managing peaks and troughs in seasonal businesses.
VAT and Tax Bills
Funding VAT payments, corporation tax, and HMRC time-to-pay arrangements.
Purchase Order Finance
Fund large orders before you deliver - how PO finance works alongside invoice finance.
Trade Credit Guide
How to negotiate better supplier payment terms and optimise your cash conversion cycle.
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.
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