Guide • FIRS Submission

Using TaxPro Max with TaxBook.pro

Until direct FIRS filing is available, follow these steps to submit your prepared filings via the official TaxPro Max portal.

1. Prepare your filing

Use TaxBook.pro to calculate your tax liability and generate a report. You can also export the filing in ATRS JSON format using the Export → ATRS JSON button.

2. Log in to TaxPro Max

TaxPro Max is the FIRS-supported portal for official submissions. Create or sign in to your account at taxpromax.firs.gov.ng and navigate to the filing section.

3. Submit the prepared data

In TaxPro Max, you can either manually enter the values from your TaxBook.pro report or upload the JSON/PDF export where supported. Use the breakdown figures exactly as calculated.

4. Payment and confirmation

Complete payment via the recommended channels (Remita or bank transfer) and keep your acknowledgement/UID from ATRS for your records.

5. Save records

Keep a copy of the JSON export and PDF report from TaxBook.pro. We will add direct submission to ATRS when sandbox credentials are available.

Coming Soon: Direct Filing

We're working on integrating directly with FIRS ATRS APIs. Once sandbox credentials are configured, you'll be able to submit filings directly from TaxBook.pro without leaving the platform.