You add up your income, work out what you owe and file your return.

But Nigeria’s new tax administration rules are giving tax authorities more ways to verify the information taxpayers provide.

Banks and other financial institutions have reporting obligations to the tax authority when customers cross certain transaction thresholds. For individuals, the threshold is ₦25 million in cumulative monthly transactions, while the threshold for corporate bodies is ₦100 million.

That does not mean every naira that passes through your account is automatically taxable.

Take a freelancer who receives payments from international clients.

During the year, they might also receive money from a personal savings account, borrow money from a friend or move funds between their own accounts.

A bank statement may show all of these as money coming in.

But they are not all income.

The important question is whether you can explain what the money represents.

That is where proper records become useful.

Invoices can show what a client paid you for. Contracts can support the nature of the work. Payment confirmations can help establish when and how you were paid. Other records can explain transactions that have nothing to do with your business income.

So if questions come up, you are not trying to reconstruct your finances from memory.

The bigger change

Nigeria’s 2026 tax framework is becoming more information driven.

The tax authority can obtain information from third parties and use it alongside the information taxpayers provide in their returns.

For freelancers and small businesses, this doesn’t mean you should panic about every transaction in your account.

It means you should know the difference between money that came into your account and income you actually earned.

And you should have the records to prove it.

Your bank statement shows the money. Your records should tell the story behind it.