What is the difference between a business loan and an overdraft?
- A business loan pays out a fixed lump sum upfront, which you repay in scheduled installments with interest, whether or not you use all of it.
- An overdraft is a flexible credit line attached to your current account, letting you spend below zero up to an agreed limit, and you only pay interest on what you actually use.
- Loans suit planned, one time spending like buying equipment or fitting out a shop. Overdrafts suit short, recurring cash gaps like paying suppliers before customer payments land.
- Overdraft interest rates from Nigerian banks are usually higher than term loan rates, but the total cost can still be lower if you clear the balance quickly.
- Banks review and can adjust or withdraw an overdraft facility yearly, so it is not a source of long term funding.
- Most Nigerian banks require a running current account history, sometimes six months to a year, before approving either facility for a small business.
Context
Every business owner in Nigeria eventually hits a moment where revenue and expenses stop lining up. A retailer in Alaba International Market pays a container of stock upfront, but customers trickle in with payments over weeks. A logistics company in Port Harcourt needs to fuel trucks today, but the client invoice clears in thirty days. These gaps are normal, but they are also where many businesses reach for the wrong financing tool and end up paying far more than they should.
Business loans and overdrafts both come from banks and both put cash in your hands, which is why the two get confused so often. But they work on completely different logic, and picking the wrong one can quietly drain your margins. Understanding the difference matters even more now, with commercial lending rates in Nigeria still elevated following the Central Bank of Nigeria's tight monetary policy stance through 2024 and into 2026.
How a business loan works
A business loan is a fixed amount of money a bank or lender gives you upfront, based on an agreed purpose, such as buying a delivery van, renovating a store, or expanding production capacity. You repay it over a set period, usually with a fixed monthly installment covering both principal and interest.
The key feature is commitment. Once disbursed, you owe interest on the full amount from day one, even if you have not spent it all yet. Nigerian banks like GTBank, Access Bank, and Zenith typically require collateral, audited or informal financial statements, and a clear business plan for loans above a few million naira. Development finance options through the Bank of Industry or NIRSAL Microfinance Bank sometimes offer more favourable terms for registered small businesses, particularly in manufacturing and agriculture.
Loans make sense when you know exactly how much you need and you are financing something with a clear return, like equipment that will pay for itself through added production.
How an overdraft works
An overdraft is different. It is a facility attached to your existing current account that allows your balance to go negative, up to a limit the bank approves, typically based on your average account turnover over the past six to twelve months. You do not receive a lump sum. Instead, you draw down as needed and repay whenever funds come in, with interest charged only on the amount and the days you were actually overdrawn.
This makes overdrafts far better suited to the rhythm of everyday trading. A distributor who needs to pay a supplier on Monday but expects retailer payments by Friday can use the overdraft to bridge those four days, paying interest for only that short window rather than carrying a full loan balance for months.
The tradeoff is that overdraft rates are usually a few percentage points higher than term loan rates, and banks review the facility annually. If your account turnover drops or the bank tightens its risk appetite, your limit can be reduced or the facility withdrawn, sometimes with short notice. An overdraft is a tool for managing timing gaps, not a stable, long term source of capital.
Which one should your business use
The honest answer is that most established businesses eventually use both, for different purposes. If you are financing a specific asset or project with a predictable payback period, a term loan almost always costs less overall. If your problem is the timing mismatch between paying costs and collecting revenue, an overdraft is the cheaper and more flexible fix, because you are not paying interest on money sitting idle in your account.
A useful rule many Nigerian finance managers apply: never use an overdraft to fund long term asset purchases, and never take a term loan just to cover a short cash gap you expect to close within weeks. Mixing the two up is one of the fastest ways a growing business ends up cash strapped despite healthy sales.
Before approaching a bank for either, get your bookkeeping in order. Lenders want to see consistent account turnover, and a business with clean, current records negotiates from a stronger position, whether the ask is a loan or an overdraft limit.
It also helps to ask your relationship manager to show you the full cost breakdown for both options, including management fees, insurance charges, and any commission on turnover that some Nigerian banks add to overdraft facilities. These extra charges rarely show up in the headline interest rate, but they can change which option is genuinely cheaper for your specific situation.
