NTA 2025 CIT computation engine
Submit your company's financial figures and Numens runs the 6-step CIT computation under the Nigeria Tax Act 2025: Profit Before Tax (PBT) → add disallowable expenses → less allowable deductions → Assessable Profit → less losses carried forward and capital allowances → Total Profit chargeable to CIT. Tax is then applied at 0% (small company: revenue ≤ ₦100m and fixed assets ≤ ₦250m) or 30% (standard company), plus Development Levy at 4% of Assessable Profit, plus an ETR top-up for companies with revenue ≥ ₦50bn, less WHT credits.
POST https://api.taxstreem.com/v1/numens/cit/compute
| Field | Type | Description |
|---|---|---|
| tenant_id* | string | Your TaxStreem tenant ID. |
| business_id* | string | The company being assessed. |
| tax_year* | integer | Assessment year e.g. 2025. |
| revenue_ngn* | float | Total gross revenue. |
| profit_before_tax_ngn* | float | Accounting profit before tax. |
| wht_credits_ngn | float | WHT credits to offset CIT payable. |