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floating interest rate

Floating Interest Rate is a loan rate that moves up or down over time, tracking a benchmark, instead of staying fixed for the life of the loan.

Why did your loan repayment suddenly jump from ₦38,000 a month to ₦45,000, when nothing about the loan agreement seems to have changed on paper?

The answer is usually one phrase hiding in the fine print, floating interest rate, and it is worth understanding before you sign anything else.

A floating rate, sometimes called a variable rate, is not fixed for the whole loan term. It is tied to a benchmark, often the Central Bank of Nigeria's Monetary Policy Rate or a bank's own base lending rate, and when that benchmark moves, your rate moves with it.

Say a Lagos small business owner takes a working capital loan at a floating rate of MPR plus 5%. When the MPR was 18%, she paid 23%. When the Central Bank raised the MPR to 27% to fight inflation, her loan rate calmly climbed to 32%, and her monthly repayment grew without her doing anything wrong.

In the United Kingdom, this shows up most in mortgages, where a tracker mortgage follows the Bank of England base rate, so homeowners felt every single base rate rise directly in their monthly payment.

For someone abroad sending money home to service a relative's floating rate loan in Nigeria, this matters too, because the naira amount you need to send can rise even if the exchange rate stays exactly the same, simply because the rate itself has climbed.

A ₦2,000,000 loan at a floating rate of MPR plus 6% starts at 24% when MPR is 18%, costing about ₦40,000 monthly interest. If MPR rises to 24%, the rate becomes 30%, and monthly interest rises to around ₦50,000, with no change to the loan amount itself.

Questions people ask

Is a floating interest rate always worse than a fixed rate?

Not always. Floating rates often start lower than fixed rates, and if the benchmark falls, you benefit directly. The risk is that it can also rise without warning, so it suits people with steady income and a comfortable buffer more than those on a tight budget.

How do I know if my loan has a floating rate?

Check your loan agreement for wording like variable rate, floating rate, or a formula such as MPR plus a percentage. If the document only states one fixed percentage for the entire term, it is likely a fixed rate loan instead.

Can I switch from a floating rate to a fixed rate midway through a loan?

Sometimes, but it usually requires renegotiating with your lender, and there may be a fee involved. It is worth asking your bank directly whether this option exists before you assume you are stuck with the original arrangement.

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