Fixed-rate period

Definition

A fixed-rate period guarantees your interest rate for a set span — say two, three or five years — giving predictable payments regardless of what benchmarks do. When it ends, many facilities move to a reversion rate, usually a variable follow-on that can be higher.

In plain terms

It is a fixed-cost window. You trade the chance of falling rates for protection against rising ones, until the window closes.

Why it matters for your company

Diarise the end of any fixed period and review before you roll onto the reversion rate. See reversion rate and when fixing your rate makes sense.

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In practice

Picture a UK limited company that fixes its rate at drawdown to lock in a predictable monthly cost for budgeting. For the length of that fixed-rate period, the finance team can plan cash flow with confidence, because the interest element of each repayment does not move regardless of what happens in the wider market.

The point where this matters most is the transition. As the fixed-rate period nears its end, the facility is due to move onto a reversion rate, and the company's costs may change from that point. Directors who treat the end date as a fixed diary entry — reviewing terms before the switch rather than after — are better placed to decide whether to renegotiate, refinance, or simply accept the new rate.

Common pitfalls

The most frequent mistake is assuming the fixed-rate period lasts for the whole life of the loan. It covers only the stated span; everything after that reverts unless the facility is refixed or refinanced. A second pitfall is letting the end date pass unnoticed — without an internal reminder, the switch to a reversion rate can arrive as a surprise on a bank statement rather than a planned event.

Lenders generally read a company's approach to this transition as a signal of financial discipline: a business that reviews its facility ahead of the reversion date, and lines up options in good time, tends to be seen as better organised than one that lets the rate change happen by default. The guide on fixing your rate sets out how to weigh up the choice before that point is reached.