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Finance Act 2025

Company Income Tax Calculator

Calculate CIT for Small (0%), Medium (20%), and Large (30%) companies based on the Nigeria Tax Act 2025.

Company Details

Calculate CIT

Enter your company's turnover and profit to see the tax breakdown.

Nigeria Company Income Tax (CIT) Guide 2025

Company Income Tax (CIT) is imposed on the profits of companies operating in Nigeria. The Finance Act 2025 maintains a tiered rate structure based on company turnover, with small businesses enjoying full exemption.

CIT Rates by Company Size

  • Small Companies (0%): Annual turnover below ₦50 million. Fully exempt from CIT and TET.
  • Medium Companies (20%): Annual turnover between ₦50 million and ₦100 million.
  • Large Companies (30%): Annual turnover above ₦100 million.

Additional Taxes

  • Tertiary Education Tax (TET): 3% of assessable profit for companies liable to CIT.
  • Development Levy: Applicable to specific sectors like construction and mining.

Need to calculate personal income tax? Try our PAYE Calculator or explore the Tax Glossary.

Frequently Asked Questions

Companies are classified by turnover: Small companies (below ₦50m) pay 0% CIT, Medium companies (₦50m-₦100m) pay 20%, and Large companies (above ₦100m) pay 30%.
TET is a 3% tax on assessable profit paid by all companies liable to CIT. It funds tertiary education in Nigeria.
Capital Allowances are deductions for wear and tear on qualifying capital expenditure like machinery, equipment, and buildings.
Yes, tax losses can be carried forward indefinitely and offset against future taxable profits.
CIT returns must be filed within 6 months after the end of the company's financial year. Payment is due with the filing.
For companies with no taxable profit, minimum tax of 0.5% of gross turnover may apply for large companies.
Disclaimer:This calculator provides estimates based on the Finance Act 2025. Please consult a qualified tax professional or the NRS (formerly FIRS) for official tax advice.
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