How to File a Nil Tax Return Under the 2025 Act: A Guide for SMEs

As a small business owner in Nigeria, discovering that the Nigeria Tax Act (NTA) 2025 grants your business a 0% Corporate Income Tax (CIT) rate is a massive relief. If your annual turnover sits comfortably under ₦100 million and your fixed assets don't exceed ₦250 million, you are legally shielded from paying taxes on your corporate profits.

But there is a catch that catches thousands of entrepreneurs off guard: Exemption from tax payment does not mean exemption from tax filing.

Under the updated provisions of the Nigeria Tax Administration Act (NTAA), every single registered corporate entity in Nigeria is legally required to submit an annual tax return. If your business made zero profit, or if it is fully exempt as a small company, you must file what is known as a Nil Return. Failing to do so can invalidate your tax-exempt status, block your corporate bank accounts, and trigger heavy penalty structures.

Here is your step-by-step operational guide to preparing and filing a Nil Tax Return cleanly and legally.

Why Must an "Exempt" Company File a Nil Return?

Before diving into the technical steps, it is vital to understand the underlying law. The Nigeria Revenue Service (NRS) does not automatically know your annual turnover or asset base just because you are registered as an SME.

Filing your annual returns is the official mechanism where you present your financial position to prove that your business still sits below the ₦100 million threshold. Think of it as an annual validation of your 0% tax status.

Furthermore, a clean filing history is mandatory to maintain an active Tax Identification Number (TIN). Under current automated frameworks, commercial banks routinely audit TIN statuses. A failure to file means your business compliance profile drops into "Default," which can lead to your commercial corporate accounts being frozen or restricted.

Pre-Filing Checklist: What You Need Before You Start

Do not log into the tax portal unprepared. To file a seamless Nil Return, gather the following documents and access credentials beforehand:

Active Taxpromax Credentials: Ensure you have your company’s login details (email/TIN and password) for the NRS Taxpromax portal (taxpromax.firs.gov.ng).
Statement of Affairs / Basic Financials: Even for a Nil Return, you should have a basic Statement of Affairs, a simplified Balance Sheet, or a Profit & Loss statement showing your turnover is indeed zero or within the exempt threshold.
Approved TIN: Ensure your corporate TIN is fully linked and validated on the system.

Step-by-Step Guide to Filing a Nil Return on Taxpromax

The NRS has modernized its processes, meaning you no longer need to visit a physical tax office to process your Nil filings. Follow these digital steps:

Step 1: Log Into the Portal

Navigate to the official Taxpromax website and log into your corporate dashboard using your business TIN and password.

Step 2: Navigate to "Taxes Due"

Once on your dashboard, locate the "Returns" or "Taxes Due" tab. Here, you will see a list of pending tax obligations categorized by year and tax type. Select Company Income Tax (CIT) for the relevant year of assessment.

Step 3: Select the "Nil Return" Option

When you initiate the CIT return form, the system will ask you to input your financial metrics. In the fields requiring Gross Turnover, Assessable Profit, and Total Tax Payable, you will input 0 (Zero).

💡 Note: If your business is an operating small company with turnover (e.g., ₦30 million) but qualifies for the 0% CIT rate, you will input your actual turnover, but the portal's built-in tax engine will automatically compute your tax payable as 0 based on your asset and turnover thresholds.

Step 4: Complete the Mandatory Schedules

The system will guide you through basic electronic forms (Schedules) covering your fixed assets and share capital balance. Fill these fields out honestly using your simplified Statement of Affairs. For a pure Nil Return (no business operations at all during the calendar year), these asset movement fields will also read zero.

Step 5: Declaration and Electronic Signature

Review the summary page to verify that the "Total Tax Due" reads exactly ₦0.00. You will then check the box affirming that the information provided is accurate and true to the best of your knowledge.

Step 6: Submit and Download Your Receipt

Click Submit. The system will process your application instantly. Once successful, the portal will generate an official receipt and an acknowledgment slip indicating a completed, processed CIT filing for that assessment year. Download and archive these files securely.

Timelines and Penalties: Don't Miss the Window

For existing corporate entities, Company Income Tax returns must be filed within six (6) months from the end of your business's financial year (usually by June 30th if your financial year runs from January to December). For newly incorporated companies, your first return is due within eighteen (18) months of registration or six months after your first financial year ends, whichever comes first.

What Happens if You Fail to File?

Assuming that a 0% tax liability means you can ignore deadlines is a costly mistake. Late filing of a CIT return triggers an immediate administrative fine of ₦50,000 for the first month of default, followed by an incremental ₦25,000 penalty for every consecutive month the default continues.

Action Plan for Founders

Make tax compliance an integrated part of your annual business checklist. Work with an accountant or utilize your tax platform dashboard to file your Nil or Exempt returns within the first quarter of the year. It takes less than twenty minutes online, completely eliminates the threat of steep corporate penalties, and keeps your banking channels seamlessly open for growth.