Search “taxable accounts” right now. Every result you get was written for an American investor. You will find explanations of 401(k)s, Roth IRAs, and capital gains brackets that do not exist in Nigeria. None of it applies to your NGX brokerage account, your T-Bills, or your money market fund.
This piece delivers the Nigerian framework instead. By the time you finish reading, you will know exactly how each of your investment vehicles is taxed, what the Nigeria Tax Act 2025 changed, and whether you have any further obligation beyond the WHT already deducted at source.
The Concept Behind “Taxable Account” (And Why It Does Not Translate Directly to Nigeria)
A taxable account is simply any investment account where your earnings attract tax. That is the whole idea. The term comes from the US personal finance world, where it exists to distinguish ordinary brokerage accounts from tax-sheltered retirement accounts like IRAs.
Nigeria has no direct equivalent of that distinction. There is no IRA. There is no tax-sheltered retirement account for individual retail investors in the same structural sense. The locally applicable question is different: which of your investment vehicles attract tax in Nigeria, on what basis, and under what rules?
The answer runs through three mechanisms: withholding tax on income, capital gains tax on disposal profits, and exemption status. Each instrument you hold sits differently across those three.
How Each Major Nigerian Investment Vehicle Is Actually Taxed
The tax treatment of your investments depends entirely on which instruments you hold.
Here is how the four instruments Nigerian retail investors commonly hold are treated under the NTA 2025:
| Investment Vehicle | Interest / Income Tax | WHT Rate | CGT on Disposal |
| NGX Equities (brokerage account) | Dividends subject to WHT | 10% (final for individuals) | Yes — progressive PIT rates (0%–25%) |
| Treasury Bills | Interest subject to WHT | 10% (final for individuals) | Not typically applicable |
| Money Market Funds | Interest subject to WHT | 10% (final for individuals) | Not typically applicable |
| FGN Bonds (long-term) | Exempt from income tax and WHT | 0% | Exempt from CGT |
This table is the clearest summary of the information Nigerian retail investors need and cannot currently find in one place. Each row represents a structurally different tax position, not just a difference in rates.
You can review Lukefield’s investment products for more on the instruments available through a CBN-licensed company.
What the Nigeria Tax Act 2025 Changed for Individual Investors
The flat 10% CGT rate on equity gains no longer applies to individuals from January 1, 2026. This is the most significant change Nigerian individual investors need to understand, and it is still widely misquoted in personal finance communities online.
Under the NTA 2025, capital gains for individuals are now tied to the progressive Personal Income Tax rates of 0% to 25%, depending on total income. This matters because your tax bracket now determines what you owe on equity disposal gains, not a fixed rate.
However, there is a threshold that protects many retail investors entirely. If your total NGX equity sales for the year fall below ₦150 million, and your actual gains are below ₦10 million, you owe zero CGT. Most retail investors fall well within those limits.
There is also a transitional rule that is time-sensitive. If you held NGX equities before December 31, 2025, the law allows you to reset your cost base to the market price as of that date. This protects you from paying CGT on gains that accrued under the old regime. To benefit from this, you need to have documented your December 2025 share prices. If you have not done so yet, this is worth addressing before your next disposal.
WHT on Dividends and Interest: Is It Your Final Tax Obligation?
For most retail investors, the WHT already deducted from your investment income is your final obligation. You do not owe more.
When a listed Nigerian company pays you a dividend, it deducts 10% WHT at source. That deduction is the final tax on that income for individual investors. You do not include it in a further Personal Income Tax filing. You do not pay additional tax on top of it.
The same applies to Treasury Bill interest. The 10% WHT deducted when your T-Bill matures is your final obligation. No additional filing is required for that income.
For money market fund interest — whether through Cowrywise, PiggyVest, or a directly held fund — the same rule applies. WHT is deducted at source by the fund manager, and that is where your tax obligation ends.
The anxiety many investors carry about compliance is understandable. But for WHT-deducted income, the answer is simple: the deduction already made is sufficient. The separate obligation that does require documentation and filing is CGT on equity disposal gains, and only when the thresholds above are exceeded.
FGN Bonds: Why They Are a Structurally Different Category
FGN bonds are not just a lower-tax alternative to T-Bills. They are in a categorically different position under Nigerian tax law.
Interest income on long-term FGN bonds is exempt from both income tax and withholding tax. No deduction is made at source. Nothing is owed on receipt. This is not a reduced rate — it is a full exemption.
Capital gains on the disposal of FGN bonds are also exempt from CGT under current rules. So unlike NGX equities, where disposal gains are now subject to progressive PIT-linked rates, selling FGN bonds does not trigger a CGT liability.
This makes the choice between a T-Bill and an FGN bond a taxable versus tax-exempt decision, not just a yield comparison. An investor who holds T-Bills and pays 10% WHT on the interest while ignoring an equivalent FGN bond yield is paying more than they legally need to. That is a structuring opportunity, not a legal technicality.
What This Means for Your Investment Decisions Today
The practical implication of all of this is that asset allocation now carries direct tax consequences for Nigerian individual investors in a way it did not before January 2026.
Two things are worth acting on now, before your next investment decision.
First, if you hold NGX equities and have not documented your December 2025 share prices as the new cost base, do so before your next disposal. Waiting until the point of sale to address this means you may overpay CGT on gains that accrued before the new regime.
Second, if you are choosing between fixed-income instruments, understand that the after-tax return on an FGN bond and a T-Bill with similar headline yields is not the same. The bond’s interest arrives without any deduction. The T-Bill’s interest does not.
Individual circumstances vary. Portfolio size, instrument mix, and total income all affect your actual exposure. The framework here gives you the right questions. A licensed financial advisor can give you answers specific to your situation.
Frequently Asked Questions
Is my Cowrywise or PiggyVest account taxable?
Yes, in a limited sense. The money market funds these platforms hold on your behalf earn interest, and that interest is subject to 10% WHT deducted at source by the fund manager. You do not owe additional tax on top of it. The deduction is the final obligation for individual investors.
Do I need to file a tax return if WHT has already been deducted?
For dividend income and T-Bill interest, no. WHT on those sources is final for individuals, and no further filing is required on that income. CGT on NGX equity disposal gains is a separate matter. If your gains exceed the ₦10 million threshold on sales above ₦150 million, that requires documentation and reporting.
Does the 10% flat CGT rate still apply?
No. The flat 10% CGT rate on equity disposal gains no longer applies to individuals from January 1, 2026. Capital gains for individuals are now subject to progressive PIT rates of 0% to 25% under the NTA 2025. Any information you have seen citing the old flat rate reflects the pre-2026 rules.
What is the minimum gain threshold before CGT applies to NGX equity disposals?
If your total NGX equity sales in a year are below ₦150 million and your actual gains are below ₦10 million, you owe zero CGT on those disposals. Most retail investors fall under both thresholds and have no CGT liability on their equity activity.