Register with FIRS: Get a Tax Identification Number (TIN) by registering with the Federal Inland Revenue Service (FIRS).
File Your Tax Returns: Ensure all tax returns are filed accurately and completely.
Pay Outstanding Taxes: Pay any due taxes. Confirm outstanding amounts with FIRS if necessary.
Apply for the TCC: Apply online through the FIRS website or at any FIRS office. Provide your TIN, completed application form, proof of tax payment, and other relevant documents.
Processing Your Application: FIRS will review your application and verify compliance. Ensure all information is accurate to avoid delays.
Collect Your TCC: Once approved, FIRS will issue your TCC, usually within two weeks. You can collect it in person or receive it via email.

Read more: https://blog.taxpal.africa/tax-clearance-certificate-in-nigeria/