This Nigeria capital gains tax calculator estimates the CGT due when you dispose of a chargeable asset — listed or unlisted shares, land, or buildings — under Nigeria’s Capital Gains Tax Act, which charges a flat 10% on the gain.
How it works
The tax is charged on the chargeable gain, not the full proceeds:
Chargeable gain = Proceeds − (Acquisition cost + Allowable expenses)
Allowable expenses include the cost of acquiring, improving, and disposing of the asset. The chargeable gain is then taxed at the single CGT rate:
CGT = Chargeable gain × 10%
If proceeds are less than the cost base, there is a loss and no tax is due. For share disposals, the Finance Act exemption applies where annual proceeds are at or below ₦100 million, or where the proceeds are reinvested into Nigerian company shares within the same year.
Example
You bought land for ₦15,000,000 and sell it for ₦25,000,000 with ₦1,000,000 of selling costs. The chargeable gain is ₦25,000,000 − ₦16,000,000 = ₦9,000,000, and CGT at 10% is ₦900,000.
Tips
- Mark a qualifying primary residence as exempt — its gain falls outside CGT.
- For listed or unlisted shares, you only pay CGT if total disposal proceeds for the year exceed ₦100 million and you do not reinvest.
- Keep records of improvement costs; they raise your cost base and reduce the taxable gain.