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Business finance for working capital

Working capital finance covers the short-term running costs of a UK business — payroll, supplier payments, rent, VAT bills and the day-to-day gap between money going out and money coming in. The route that fits usually depends on whether you take card sales, raise invoices on payment terms, or simply have steady monthly turnover. Healthy retail or hospitality operators with card receipts often suit a merchant cash advance, B2B businesses with unpaid invoices may use invoice finance, and stable trading SMEs with twelve months of accounts can apply for an unsecured business loan or revolving credit line. Lendrly maps these signals against published lender criteria so you can see which route is realistic before you apply.

Why this use case matters

Most UK SME funding decisions are really working capital decisions. A business that posts profits across the year can still run out of cash in a single bad month, and that is when payroll, HMRC liabilities, supplier discounts and rent come under pressure. Choosing the wrong finance type — a five-year asset loan to cover a one-month gap, for example — can cost more than the original shortfall.

Working capital products are typically smaller, faster and shorter-term than asset or property finance. Lenders look at recent revenue, bank statements, debtor quality and existing debt service rather than long-term affordability projections. That makes the eligibility signals very different to a term loan, and means an SME can sometimes qualify for a short revolving facility when a multi-year loan would be declined.

Finance types that usually fit

Based on how UK lenders typically underwrite this use case, the following finance categories are the most common fit:

UNS

Unsecured Business Loan

Term loan or credit line repaid through fixed instalments.

Eligibility map
MER

Merchant Cash Advance

Cash advance repaid as a share of card/POS/platform sales.

Eligibility map
INV

Invoice Finance

Funding advanced against unpaid B2B invoices.

Eligibility map

Finance types that usually don't fit

These categories are mentioned for completeness but typically aren't appropriate for this use case:

Eligibility questions UK lenders typically ask

  • Have you been trading for at least 6–12 months with a UK business bank account?
  • Can you show consistent monthly revenue across the last 3–6 months of statements?
  • Do you take card or platform sales, raise B2B invoices, or have steady direct-debit income?
  • Are you up to date on rent, VAT and any existing finance repayments?
  • Is the funding amount in line with one to three months of trading revenue?
  • Have you ruled out CCJs, recent defaults or unresolved insolvency events?

Documents to prepare

  • The last 3–6 months of business bank statements
  • Most recent filed accounts or year-to-date management accounts
  • VAT returns if VAT-registered
  • ID and proof of address for directors or signatories
  • A short summary of what the funds will cover and how repayments will be met
  • Card processor or platform statements if applying for an MCA

UK lenders that often look at this use case

The lenders below publish criteria consistent with this use case. Final approval is always subject to lender underwriting.

Frequently asked questions

How much working capital can a UK SME borrow?
Typical working capital facilities run from £5,000 to around £250,000 for SMEs without security, with larger amounts available where revenue, accounts and debtor quality support the case. Merchant cash advances are usually sized against one to two months of card sales, while invoice finance scales with the value of unpaid invoices.
Is working capital finance the same as a business loan?
Not quite. A business loan is one specific product — a fixed-term lump sum repaid in instalments. Working capital finance is a use case that can be met by several products, including unsecured loans, revolving credit lines, merchant cash advances and invoice finance, depending on which eligibility signals are strongest.
How quickly can working capital finance be in my account?
Speed varies by route. Merchant cash advances and revenue-linked facilities can fund within 24–72 hours once a partner integration is in place. Unsecured loans from digital lenders typically take 2–5 working days. Invoice finance setup can take 1–3 weeks the first time, then faster on each invoice drawdown.
Can I use working capital finance to pay HMRC?
Many lenders allow tax bills as an acceptable purpose, but some specifically exclude paying down tax arrears that are already in default. If HMRC pressure is the trigger, mention this early; some lenders will treat ongoing HMRC arrangements as a credit signal.
Will I need to give a personal guarantee?
For most unsecured working capital facilities under £250,000, lenders ask directors for a personal guarantee. Merchant cash advances sometimes price out the PG requirement, and invoice finance is secured against the invoices themselves, but a PG is still common.

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