🧾 Tax Terms

TIN

(Tax Identification Number)

What is TIN?

A Tax Identification Number (TIN) is a unique number issued by FIRS to every taxpayer in Nigeria. It's required for tax filing, opening business bank accounts, government contracts, and various official transactions.

Related Terms

Want Erin to handle this automatically?

Stop doing tax math manually. Erin tracks your income, calculates in real time, and shows you exactly what matters.

Get Started