• VAT returns: Filed monthly or quarterly, depending on turnover, by the 15th of the subsequent month/quarter.
• Corporate tax return: Annual CIT declaration due by 30 June, accompanied by audited financial statements prepared under OHADA accounting standards.
• Withholding-tax certificates: Issue to every non-resident payee and submit proof of remittance to the DGI by the 15th of the following month.
• Advance tax payments: Two instalments (each 40 % of the prior year’s tax) due in September and December, credited against the final tax due.

Maintain complete documentation for at least five years to withstand audits.