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Unsecured Business Loan Rates: Interest & Fees | Promise

Business Finance•Pillar 3: Rates & Costs

Business Loan Rates & Costs: 2026 Commercial Guide

Welcome to our specialist guide on unsecured business loan rates in the UK. Complete transparency on UK business loan interest rates and fees. Compare APR tiers versus factor rates, calculate arrangement fees, discover penalty-free early settlement terms, and claim 100% Corporation Tax relief on finance costs.

What are typical interest rates and APRs for unsecured business loans in 2026?

TL;DR: Interest rates for prime UK businesses range from 7.9% to 14.9% APR, while standard trading firms typically see 15% to 28% APR. High-risk or adverse credit profiles may exceed 29% APR, determined by balance sheet strength and trading consistency.

Unsecured Business Loan Rates: Commercial Pricing Tiers and Annual Percentage Rates

Interest rates on unsecured commercial borrowing reflect the lender’s risk exposure without physical collateral. For prime trading businesses with strong profitability and clean credit histories, rates start from 7.9% APR. Furthermore, fixed interest rates ensure predictable monthly outgoings.

In contrast, newer companies or businesses operating in volatile sectors fall into standard commercial pricing tiers. Crucially, interest is calculated on reducing principal balances for true amortising facilities. Therefore, partnering with a specialist broker ensures access to lowest available institutional rate brackets.

How do factor rates work compared to Annual Percentage Rate (APR)?

TL;DR: A factor rate expresses borrowing cost as a simple decimal multiplier applied to the initial principal. For example, borrowing £100,000 at a 1.20 factor rate requires repaying £120,000 in total. Unlike APR, total interest does not reduce if paid early.

Understanding Factor Rates and Total Borrowing Costs

Many short-term commercial lenders quote pricing as a factor rate rather than an annual percentage rate. For instance, a £50,000 loan with a 1.18 factor rate results in a fixed total repayment of £59,000. Consequently, calculating total interest is straightforward.

However, factor rates do not adjust based on declining balances during the loan term. As a result, shorter loan terms with factor rates can translate to higher effective APRs. Therefore, comparing total repayable sums alongside APR metrics provides accurate cost evaluation.

What arrangement fees and lender charges apply to unsecured business finance?

TL;DR: Lenders typically charge an arrangement fee of 1.5% to 4% of the loan amount, deducted from the gross advance. Promise Money charges no upfront broker fees, ensuring you only pay transparent, disclosed lender facility fees upon completion.

Facility Fee Structures and Transparent Charges

When evaluating commercial loan offers, borrowers must inspect additional facility fees beyond headline interest rates. Specifically, most institutional lenders levy an arrangement fee to cover underwriting, compliance, and administration. In practice, this fee is deducted directly from gross loan proceeds.

Additionally, some lenders apply monthly account management or documentation fees. Crucially, reputable commercial brokers maintain transparent zero upfront fee policies. Therefore, businesses retain 100% of their cash until a competitive facility is formally completed and funded.

Can I repay an unsecured business loan early and are there settlement penalties?

TL;DR: Many modern commercial lenders offer penalty-free early settlement or early repayment discounts, reducing total interest owed. However, loans based on fixed factor rates may require full repayment of pre-calculated interest regardless of early settlement.

Early Settlement Terms and Interest Rebates

Flexibility to clear debt ahead of schedule is a crucial consideration for growing companies. Notably, modern fintech lenders frequently offer penalty-free early settlement options. Consequently, businesses with surplus seasonal cashflow can redeem loans early to minimise interest expense.

Conversely, contracts structured around fixed factor rates or minimum interest terms may charge the full contractual interest upon redemption. Therefore, borrowers must verify settlement terms before signing agreements. Crucially, specialist brokers negotiate flexible redemption clauses that maximise borrower cost savings.

Is business loan interest tax-deductible against UK Corporation Tax?

TL;DR: Yes. Loan interest, arrangement fees, and finance charges incurred for legitimate commercial purposes are 100% allowable business expenses. These costs reduce net taxable profits, lowering your company Corporation Tax bill by 19% to 25%.

HMRC Tax Deductions and Corporation Tax Relief

Borrowing capital to finance commercial activities delivers significant corporation tax advantages. Specifically, HMRC guidelines classify commercial loan interest and associated facility fees as legitimate revenue expenses. As a result, interest charges are fully deductible against company gross profits.

For example, a business paying £10,000 in loan interest at the 25% Corporation Tax rate saves £2,500 in corporate tax liability. Crucially, while interest is tax-deductible, capital repayments represent balance sheet liabilities rather than deductible expenses. Therefore, effective tax planning maximises net borrowing efficiency. Crucially, understanding these rules is essential when reviewing your unsecured business loan rates options.

Commercial Lending Desk

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