4 min read | Published 16/03/2026
A business loan can be a useful way for limited companies to fund growth. But it’s essential to understand the full cost of borrowing before signing on the dotted line.
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Business loans can help companies grow, invest in equipment, or manage cash flow during quieter periods. But the advertised interest rate doesn’t always tell the whole story.
Depending on the lender, there may be extra costs attached to the loan that increase the total amount you’ll need to pay back, and getting to grips with these costs before you borrow can mean fewer surprises later on.
Here’s what’s worth keeping an eye on.
Some lenders charge a setup fee to arrange the loan, which is often a percentage of the amount you’re borrowing.
For example: if you borrow £50,000 and the lender charges a 3% setup fee, that’s £1,500.
In some cases, this fee will be taken from the loan itself, meaning you’ll receive less money than you perhaps expected, while still having to repay the full amount.
If your business performs well, you might think about paying off the loan early: it feels like a sensible, pragmatic move, so why not? Well, some lenders will charge early repayment fees if you do this. These fees exist because lenders expect to earn a certain amount in interest over the life of the loan, and they don’t want to miss out on income they’ve budgeted for.
Before taking out a loan, it’s worth checking:
Whether you can repay early
If there are charges for doing it
Whether a minimum amount of interest has to be paid
If your company’s income fluctuates, this flexibility could be important
At the other end of the spectrum, it’s also worth knowing that paying late can add to the cost of borrowing.
Depending on the lender, you could face:
Late payment charges
Extra interest on overdue payments
Damage to your company’s credit profile
That’s why it’s important to make sure the repayments comfortably fit within your cash flow.
Spreading a loan over a longer period usually means lower monthly repayments. But the trade-off is that you’ll often pay more interest overall.
It’s important to look beyond the monthly payment and focus on the total amount your business will repay over the full term.
Here’s a simple example to show how the total cost of a loan can grow.
Imagine your company takes out a £50,000 loan at 8% interest over five years. Your monthly repayments might be around £1,015, meaning you’d repay roughly £60,900 in total. That’s about £10,900 in interest on top of the original loan. If the lender also charges a 3% setup fee (£1,500), the overall cost of borrowing rises to around £12,400.
Before taking out a business loan, look at the full breakdown of costs. Make sure you understand:
The total repayment amount
Setup or arrangement fees
Whether early repayment charges apply
Late payment penalties
Whether the interest rate is fixed or variable
A business loan can be a valuable tool for funding growth, but it’s not until you understand the full cost of borrowing that you’ll be able to choose a loan that works, and will ensure you avoid unexpected expenses later on.
Alex joined in 2019, bringing his expertise to a range of roles working in both the analytics and commercial teams. Then he stepped across to focus on the product team, where he’s been focusing on scaling up the teams’ SME offering.