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Working Capital Loans

Sam GriffinSam GriffinPublished 7 August 2026 | Last reviewed 8 August 20267 min read
Working Capital Loans

Working capital is the money a business needs to fund its day-to-day operations. That means paying suppliers, covering payroll, maintaining stock levels, and meeting the routine costs of trading. When working capital runs short, the business has two broad options. It can borrow to cover the gap through a working capital loan, or it can accelerate the cash it is already owed through invoice finance. Both solve a cash flow problem. They solve different causes of that problem, and confusing the two leads businesses to borrow more expensively than they need to.

What Working Capital Actually Is

Working capital is calculated as current assets minus current liabilities. Current assets include cash, stock, and money owed by customers. Current liabilities include money owed to suppliers, tax obligations falling due, and any short-term debt. Positive working capital means the business has more short-term resources than short-term obligations. Negative working capital means the opposite.

A working capital gap is not always a sign of a struggling business. Fast-growing businesses frequently experience working capital pressure precisely because they are growing. They are paying for stock and labour now, while the revenue from those inputs arrives weeks or months later. The gap between outgoings and receipts widens as the business scales. Managing it is a normal part of commercial life, not a red flag.

The cause of the gap matters more than its size. A gap caused by slow-paying customers has a different solution to a gap caused by seasonal revenue patterns, and both are different from a gap caused by a permanent mismatch between the cost structure of the business and the revenues it generates. The right solution depends on an honest diagnosis of the cause.

What a Working Capital Loan Is

A working capital loan is an unsecured or lightly secured loan taken out to fund operational needs rather than capital investment. It is typically short to medium term, from three months to three years, and repaid from the general cash flow of the business as revenues come in.

The amount available depends on the business's size, trading history, and financial health. Most working capital loans do not require a specific asset as security, though many lenders ask for a personal guarantee from the director. The interest rate reflects the unsecured nature of the lending and the short to medium term, typically ranging from 15% to 35% APR for established businesses with clean credit histories.

Working capital loans are funded in a lump sum at the outset. This means you are paying interest from day one on the full amount, even if you do not need all of it immediately. For businesses with a specific, defined need, this is fine. For businesses with a more fluid cash flow requirement, a revolving credit facility or an overdraft may be more efficient, since you only pay for what you have drawn.

When a Working Capital Loan Is the Right Answer

A working capital loan makes most sense when the cash flow gap is caused by something other than customers paying slowly.

Seasonal trading creates predictable working capital gaps. A business that does the majority of its revenue in the second half of the year needs capital to fund operations during the first half. The repayment comes from the seasonal peak, and the term of the loan can be structured around the business's seasonal cycle. A working capital loan matches this need well, because the gap is not caused by outstanding invoices but by the timing of revenue within the year.

A one-off cost, such as a major repair, an unexpected tax bill, or the upfront cost of a new contract before revenues start to arrive, is also a legitimate working capital loan use case. The need is specific and near-term, and the repayment comes from normal trading cash flow once the temporary disruption is resolved.

A business that is growing faster than its cash conversion cycle allows can also benefit from a working capital facility. As orders increase, the business pays out more before it receives more. A loan bridges the gap while growth catches up with its own cash generation.

When Invoice Finance Does the Job Better

If the working capital gap is caused primarily by customers taking a long time to pay, invoice finance is usually the more appropriate solution than a working capital loan.

Invoice finance advances a percentage of outstanding invoices, typically 80% to 90%, within 24 hours of the invoice being raised. The finance is repaid when the customer pays. The key difference from a working capital loan is that invoice finance is not borrowing against the business's future cash flow in a general sense. It is specifically advancing cash from invoices that already exist and represent confirmed, receivable income.

This has two practical advantages. First, the cost is lower than an unsecured working capital loan in most cases, because the security is the invoice book rather than the business's covenant alone. Second, the facility scales automatically with the business. As invoicing grows, the amount of finance available grows with it, without needing to renegotiate a loan facility.

Invoice finance also removes the exposure to customer payment delays as a recurring cash flow problem. Rather than managing a rolling gap between when customers invoice and when they pay, the gap is permanently bridged. Working capital loans solve the symptom periodically; invoice finance addresses the underlying structure.

If you invoice other businesses on payment terms and find that your working capital gap is consistently driven by the time between invoicing and payment, getting an invoice finance quote through HowMuch is worth doing alongside any loan comparison.

How to Decide Between Them

The simplest diagnostic is to ask what is causing the working capital gap.

If the answer is "customers are slow to pay and I have a significant ledger of outstanding invoices," invoice finance addresses that directly and is likely cheaper than a working capital loan for the same effect.

If the answer is "my cash flow is seasonal," "I have a specific upcoming cost," or "I am growing faster than my cash cycle allows," a working capital loan or overdraft is the more natural solution, because there is no specific invoice ledger to advance against.

If the answer is "we are consistently spending more than we earn and I am not sure exactly why," neither product is the solution. Borrowing to fund a structural imbalance between costs and revenues does not fix the imbalance; it delays the reckoning while adding interest. Understanding the cash flow dynamics of the business comes first, and the financing solution follows from that understanding.


Frequently asked questions

What is the difference between a working capital loan and a revolving credit facility?

A working capital loan provides a lump sum that is repaid in instalments over a defined term. A revolving credit facility provides a credit limit that you can draw down and repay repeatedly, paying interest only on what you have drawn. For businesses with variable working capital needs, a revolving facility is usually more cost-effective because you are not paying interest on unused capacity. For businesses with a specific, one-off need, a term loan is often simpler.

How much can I borrow for working capital?

It depends on the lender and your business's financial profile. Most specialist online lenders offer working capital loans from £5,000 to £500,000. The amount available to your specific business depends on your turnover, trading history, and credit profile. A business turning over £500,000 a year with clean accounts and a good credit history can typically access more than a business of the same size with a shorter trading history or adverse credit.

Is invoice finance suitable for all B2B businesses?

Invoice finance works for businesses that invoice other businesses on payment terms of 30 days or more. It is not suitable for retail businesses, cash businesses, or businesses that invoice consumers. The debtor also needs to be a creditworthy commercial entity. Lenders will assess the quality of the invoice book, not just the business applying. If your customers are large, creditworthy organisations, invoice finance is likely to be accessible and competitively priced.

Can I use both a working capital loan and invoice finance at the same time?

In principle yes, though some lenders may require a debenture over the business as security for a working capital loan, which can conflict with an invoice finance facility that also requires a charge over the debtor book. Lenders will want to understand existing facilities when assessing any new borrowing. Being transparent about existing arrangements and checking for any conflicts before applying is important.

This article is for informational purposes only and does not constitute financial advice. Always seek independent advice before making financial decisions.

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