Free Calculator

CBN Treasury Bills
Returns Calculator

Calculate exact returns on CBN T-Bills for any tenor from 1 to 366 days. Primary and secondary market. WHT exempt.

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CBN Treasury Bills Calculator

Enter any number of days from 1 to 366. Common tenors: 30, 60, 91, 182, 364 days.
% p.a.
Adjust to match your quoted rate. Secondary market rates vary daily.
Face Value
You Pay Today
Discount Earned
Tenor
Effective Annual Yield
Real Return vs Inflation

How Nigerian Treasury Bills Work

📋 Flexible Tenor

T-Bills are issued for 91, 182, and 364 days at primary auction. On the secondary market you can buy and sell any remaining tenor — from 1 day to 364 days.

💶 The Discount Mechanism

You buy at a discount to face value. If a ₦1M T-Bill costs ₦838,000 today, your ₦162,000 discount is your return at maturity.

📈 Secondary Market

You can buy and sell T-Bills before maturity through licensed dealers and stockbrokers. The price and effective yield adjust based on days remaining.

✅ WHT Exempt

Treasury Bill returns are exempt from Withholding Tax in Nigeria — unlike Fixed Deposits which attract 10% WHT on interest earned.

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