Tax on Fixed Income Investments in Nigeria

Most fixed income investments in Nigeria carry a 10% withholding tax, deducted automatically before the money reaches your account — the major exception is FGN Bonds (including savings bonds) and Sukuk, which are currently tax-exempt.

That distinction matters more than it sounds. On a ₦5,000,000 investment earning 15% annually, the tax-exempt investor keeps ₦750,000; the taxable investor keeps ₦675,000. Same return, same principal — ₦75,000 disappears each year, quietly and automatically, often without the investor noticing until the money arrives.

This guide breaks down exactly how fixed income tax works in Nigeria, instrument by instrument, with clear worked examples. If you’re new to fixed income generally, our complete beginner’s guide covers the broader landscape.

Quick Tax Table

Tax treatment reflects current Nigerian legislation as of this writing. Always verify with a licensed tax professional, as regulations can change.

How Withholding Tax Works

Withholding tax is deducted at source — you don’t file anything or send money to the government yourself; the bank, broker, or issuing institution deducts it before crediting your account.

Earn ₦100,000 in interest on a fixed deposit, and the bank deducts ₦10,000, crediting you with ₦90,000. That ₦10,000 goes directly to the Federal Inland Revenue Service (FIRS). You don’t need to report it again on a personal tax return unless other income sources require filing.

This makes compliance simple — but it also means you need to know an instrument’s tax status before investing, since the deduction happens automatically whether you were aware of it or not.

Tax Treatment by Investment Type

FGN Bonds — Tax-Exempt

Under current Nigerian law, interest on Federal Government of Nigeria bonds — both standard FGN bonds and FGN savings bonds — is fully exempt from withholding tax and income tax. Every kobo of interest paid stays with you; over a 10- or 20-year bond, the cumulative tax savings can amount to a meaningful sum. See our FGN Bonds guide for the full picture.

Sukuk Bonds — Tax-Exempt

Sukuk bonds carry the same 0% tax treatment as conventional FGN bonds, with returns structured as profit-sharing rather than interest. See our Sukuk Bonds guide for details.

Treasury Bills — 10% Taxable

Treasury bill returns carry a 10% withholding tax, applied regardless of purchase method. Earn ₦200,000 in profit on a 364-day T-bill, and the bank or broker deducts ₦20,000 before crediting you — this applies whether you buy through a bank, an app, or a stockbroker, with no exemption for small amounts or first-time investors. See our Treasury Bills guide.

Fixed Deposits — 10% Taxable

Fixed deposit interest is taxed identically to Treasury bills — 10% deducted at source — though since fixed deposit rates tend to run lower to begin with, the tax bite feels proportionally larger. Earn ₦60,000 on a ₦500,000 fixed deposit, and the bank deducts ₦6,000, crediting you ₦54,000. See our Treasury bills vs. fixed deposit vs. money market funds comparison for the fuller picture.

Corporate Bonds — 10% Taxable

Corporate bond interest is taxed at 10%, same as Treasury bills, with no exemption regardless of issuer size or reputation. See our Corporate Bonds guide.

Commercial Papers — 10% Taxable

Commercial paper returns are taxed at 10%, same as corporate bonds and Treasury bills. The generally higher headline yields on CPs partly offset this, but the tax still reduces the net return. See our Commercial Papers guide.

Which Instrument Gives the Best After-Tax Return?

On a ₦5,000,000 investment at a 15% annual return, here’s what different instruments actually leave you with:

The tax-exempt investor keeps ₦75,000 more per year on identical principal and headline return — over 10 years, that’s ₦750,000 from a single investment. Tax shouldn’t be an afterthought; it belongs in the decision from day one.

 Common Tax Mistakes

Frequently Asked Questions

In Summary: Ranked by Tax Efficiency

1. FGN Bonds — 0% tax

2. Sukuk — 0% tax

Everything else — Treasury bills, fixed deposits, corporate bonds, and commercial papers — currently carries a 10% withholding tax.

Key Takeaways

• Not all fixed income investments are taxed equally — FGN bonds and Sukuk are exempt; Treasury bills, fixed deposits, corporate bonds, and commercial papers are taxed at 10%
• Withholding tax is deducted at source — you receive the net amount directly, with nothing further to file
• The tax difference between instruments compounds meaningfully over time, especially for long-term holdings
• Comparing after-tax returns, not headline rates, is what actually determines which instrument leaves you better off

Your Next Step

Check your last fixed income statement — a Treasury bill certificate, fixed deposit confirmation, or bond coupon notice — for how much was deducted as withholding tax. If you’re holding taxable instruments, weigh whether a tax-exempt alternative like FGN bonds might serve you better over the long term. 

This content is for educational purposes only and does not constitute tax or financial advice. Tax legislation can change. Always verify current treatment with the Federal Inland Revenue Service (FIRS), your bank, or a licensed tax advisor before making investment decisions.