Guide

How a variable loan rate is built: reference rate plus margin

Your variable rate has two parts, and only one of them moves. A variable business loan is priced as a benchmark reference rate plus a fixed credit margin. The reference rate tracks the wider cost of money; the margin reflects your company’s risk and stays put. Knowing which is which tells you what you can negotiate and what you cannot.

2 min read

Reference rateMoves with the market
+ marginFixed, risk-priced
= your rateThe all-in cost

Illustrative only. Assumes a fixed rate and equal monthly repayments (annuity). Your actual offer depends on Credicorp’s assessment of your company.

The two building blocks

A variable rate is a reference rate — usually compounded SONIA or the Bank of England base rate — plus a credit margin. On “base + 4%”, the base rate is the moving part and the 4% is fixed for the life of the loan.

What sets the margin

The margin is set by risk-based pricing: your credit score, trading history, security and interest cover. A stronger application earns a thinner margin — and that is the part you can influence.

What you can and cannot negotiate

You cannot move the reference rate — it is the market’s cost of money. You can move the margin by presenting a stronger case. That is why preparing your accounts and credit file before applying pays for itself. See how to lower the APR you are offered.

Stress-test the moving part

Because the reference rate can rise, model a higher rate before you commit. Use the calculator to see how a base-rate rise of 1–2% would change your payment.

Where Credicorp fits

Credicorp lends to your company, not to you personally, and takes no personal guarantee. See indicative terms on business loans, or apply online in minutes.

See rate pass-through and how SONIA-linked pricing works.

Frequently asked questions

Can I negotiate the reference rate?

No. It tracks the wider cost of money and is the same for everyone. You negotiate the margin on top of it.

Is a fixed rate the reference rate plus margin too?

A fixed rate is priced from the same building blocks but then locked for a period, so the reference part cannot move until the fixed period ends.

How do I lower my margin?

Improve what the lender sees: clean credit file, up-to-date accounts, strong cash position and cover. A better risk profile earns a thinner margin.

Funding for UK limited companies

Credicorp lends to your company, not to you personally — short-term working capital with no personal guarantee. See what your business could access.