Capital Gains Tax Calculator

So you sold an asset for more than you bought it for. That is a Capital Gain, which is great, but tax follows profit like gala hawkers follows vehicles inside Lagos traffic. This calculator simplifies the Nigerian tax liability when you sell something big.

The major benefit: it combines your profit with your other annual income to give you a true picture of the tax you owe. (Yes, that is exactly how it works here.)

Capital Gains Tax Calculator | Nigeria 2025

Capital Gains Tax Calculator

Nigeria Tax Act 2025 • Asset Disposal

💡 How It Works Capital gains are taxed as part of your total income using progressive tax rates (0% to 25%). The gain is calculated as disposal proceeds minus acquisition cost and expenses.
🏠 Property
📊 Shares/Stocks
💎 Other Assets
The total amount received from selling the asset
What you originally paid for the asset
Costs incurred in selling the asset (legal fees, agent commissions)
Your other taxable income for the year (to calculate total tax)
⚠️ Exemptions Personal chattels under ₦5M are exempt. Principal private residences may qualify for exemption. Motor vehicles are exempt from capital gains tax.
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Disposal Proceeds ₦0
Less: Acquisition Cost ₦0
Less: Disposal Expenses ₦0
Capital Gain
₦0
Tax on Capital Gain
₦0
Tax Calculation Breakdown
Total Income (Other + Gain) ₦0
Total Tax Payable ₦0
Tax on Other Income ₦0
Attributable to Capital Gain ₦0
Net Gain After Tax
₦0

How To Calculate Your Capital Gains Tax

This tool calculates the difference between your sale price and your original cost, then applies the progressive income tax rate (up to 25%) to that profit.

Step 1: Tell the Tool What You Sold

Before entering numbers, select the asset type.

  • Click the relevant button: 🏠 Property, 📊 Shares/Stocks, or 💎 Other Assets.
  • This choice mainly helps categorize your transaction. Note that the tax rate remains the same (tax is based on your total income bracket).

Step 2: Input the Money Figures

You need four core numbers for the tool to work its magic.

  1. Disposal/Sale Price: Enter the final amount you received from the buyer. (This is the big win number.)
  2. Original Acquisition Cost: Enter the amount you paid to buy the asset initially.
  3. Disposal Expenses: Enter any costs you paid just to complete the sale: agent fees, legal fees, or stamp duties. (These costs reduce your taxable profit.)
  4. Other Annual Income: Enter your total income from salary, business, or other sources for the year. (This is crucial: your capital gain is added to this amount to determine your final tax bracket.)
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Step 3: Get Your Results

Click Calculate Gains & Tax 🚀. The results break down immediately:

  • Capital Gain: This is the straight profit (Sale Price minus Cost and Expenses).
  • Tax on Capital Gain: This is the actual tax amount you owe, calculated using your total income (Other Income + Capital Gain) and Nigeria's tax brackets.
  • Net Gain After Tax: This shows your true pocket profit after the taxman takes his share.

💡 Quick Tax Reality Check

If the calculator shows a Capital Loss (you sold for less than you paid), you owe ₦0 in tax on that transaction. The tool highlights this loss in red, confirming you have no tax liability there. (A loss is still a loss, but at least there is no tax.)

You have all the steps. Which asset sale are you calculating today: property, crypto, shares, or another asset?