The Complete Guide to Business Loans UK (2025)

In this article

• UK business loans range from short-term unsecured facilities to long-term secured lending against property
• Lenders assess trading history, revenue, credit profile and sector, not just credit score
• Rates vary from under 5% for secured lending to 30%+ for short-term unsecured products
• A broker compares 100+ lenders simultaneously, often securing better terms than direct applications
• Most unsecured business loans can be funded within 24 to 72 hours of agreement

Types of business loan available in the UK

The UK business lending market offers a wide range of products, each suited to different purposes and business profiles. Unsecured term loans are the most common: a fixed sum advanced for a set term, repaid in equal monthly instalments. They require no collateral, relying instead on the business's trading history and cash flow. Amounts typically range from £5,000 to £500,000 with terms of 3 to 60 months.

Secured business loans use property or other assets as collateral, which allows lenders to offer higher amounts (£50,000 to several million), longer terms (up to 25 years), and lower interest rates. They are slower to arrange but significantly cheaper for the right transaction. Revolving credit facilities work like an overdraft: you draw and repay up to an agreed limit, paying interest only on what you use.

Specialist products include invoice finance (releasing cash tied up in outstanding invoices), asset finance (spreading the cost of equipment or vehicles), merchant cash advances (repaid as a percentage of card takings), and trade finance (funding import and export transactions). A good broker will match your business need to the right product rather than defaulting to a generic term loan.

How lenders assess your application

Lenders evaluate business loan applications across several dimensions. Trading history is usually the first filter: most mainstream lenders want to see at least 12 months of trading, with 24 months preferred. Specialist lenders and fintech platforms may consider businesses from six months old, and some will look at pre-revenue startups with strong director backgrounds.

Revenue and cash flow are assessed from bank statements, typically the last three to six months. Lenders look for consistent deposits, a positive average balance, and manageable outgoings relative to income. They are also looking for signs of financial distress: returned direct debits, use of informal lending, or deteriorating balances. Filed accounts and management accounts add context for larger facilities.

Credit profile covers both the business (via Experian, Equifax or similar) and the directors personally. County Court Judgements, defaults, and previous insolvencies are considered but do not automatically disqualify you. Many specialist lenders focus on current trading performance over historical credit events, particularly where the adverse information is more than two or three years old.

Business loan interest rates in the UK

Business loan rates vary enormously based on the product type, borrower profile, amount, and term. Unsecured business loans from fintech lenders typically range from 6% to 30% per annum representative APR. The best-rate unsecured products are reserved for established businesses with strong turnover and clean credit, while rates above 20% tend to apply to higher-risk borrowers or very short-term facilities.

Secured business loans against commercial or residential property typically range from 4% to 12% per annum, depending on loan-to-value, the quality of the security, and the lender's risk appetite. Invoice finance service charges run from 0.5% to 3% of the ledger per month, while asset finance rates are typically quoted as a flat rate of 3% to 8% per annum on the financed amount.

Total cost of borrowing matters as much as the headline rate. Arrangement fees of 1% to 3%, early repayment charges, broker fees, and documentation charges all affect the true cost. Always ask lenders to confirm the total amount repayable over the full term so you can compare on a like-for-like basis. Spark Finance presents offers showing total cost of credit, not just the monthly payment.

The business loan application process

A typical unsecured business loan application takes between one and five working days from submission to funded. The process starts with an initial eligibility check, which most brokers and lenders conduct via a soft credit search that does not affect your credit score. Once indicative terms are agreed, you provide supporting documents: six months of bank statements, your most recent filed accounts or management accounts, and basic company information.

The lender underwrites the application, which may involve a call with a relationship manager or, for fintech lenders, a fully automated process. Once approved, you receive a formal offer with the full terms. Signing the agreement triggers the funding process. For unsecured loans, funds are typically released within 24 hours of signing. Secured lending takes longer because of the legal charge process, usually two to six weeks.

Working through a broker like Spark Finance streamlines this process significantly. Rather than applying to lenders one at a time and accepting multiple hard credit searches, a single application reaches multiple lenders simultaneously. The broker presents competing offers so you can choose based on rate, term, and total cost rather than accepting whatever comes back first.

Using a broker vs applying direct

Applying directly to a single lender is the intuitive starting point for most business owners, but it has real limitations. Each lender only offers its own products, which means you get a single perspective on what your business can borrow and at what rate. If you are declined or offered unfavourable terms, you then approach another lender and repeat the process, accumulating hard credit searches along the way.

A whole-of-market broker has access to 100 or more lenders across every product category. They know which lenders are currently accepting applications in your sector, at your business size, and with your credit profile. They package applications professionally and manage the relationship with the lender through to completion. This typically results in higher approval rates, better terms, and significantly faster funding.

Spark Finance charges no upfront fees. We are paid a commission by the lender on completion, which is disclosed in full before you proceed. This means there is no cost to using our service unless and until you receive funding you choose to accept. For most UK businesses, using a broker is the most efficient route to the best available terms.