TaxTech NG is currently in pre-launch development. This platform is not yet available for public tax filing. All features, designs, and content are subject to change before the official 2026 rollout.

Troubleshooting

Filing Submission Errors

If you encounter an error when trying to submit your tax filing, this guide will help you understand common issues and how to resolve them.

Common Filing Errors

Here are the most common errors and how to fix them:

Invalid BVN/TIN Error

The BVN or TIN you entered doesn't match government records. To fix:

  • Double-check that you've entered all 11 digits correctly
  • Verify your BVN with your bank or TIN with NRS
  • If you recently updated your information with NIMC or NRS, wait 48 hours and try again

Missing Required Information Error

You haven't filled out all mandatory fields. To fix:

  • Review your filing form and look for fields marked with a red asterisk (*)
  • Ensure all income sources and deductions are properly entered
  • Check that you've provided valid contact information

Connection Error or Request Timed Out

There's a network or server connectivity issue. To fix:

  1. Check your internet connection
  2. Try refreshing the page
  3. Clear your browser cache and cookies
  4. Try a different browser or device
  5. Wait 15 minutes and try again (server may be temporarily busy)

General Troubleshooting Steps

If errors persist, try these steps:

  1. Save your progress if the system allows
  2. Log out and log back in to refresh your session
  3. Try a different browser (Chrome, Firefox, Safari, or Edge)
  4. Disable browser extensions (ad blockers can interfere)
  5. Ensure you're using an updated browser version

Frequently Asked Questions

What if I get a 'Filing Already Submitted' error?

This means you've already filed for this tax year. Check your dashboard to confirm. If you need to amend your filing, contact support@taxtechng.com as you cannot submit multiple filings for the same tax year.

When should I contact support about an error?

Contact support@taxtechng.com if error messages persist after trying all troubleshooting steps, if you receive an error not listed here, or if your draft filing data appears corrupted. Include a screenshot of the error message when contacting support.

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