Navigating the NTAA 2026 digital-first framework is definitely intimidating at first, but your first step is logging into your respective state portal using your NIN as your primary identifier, which now links your federal and state tax profiles automatically. To calculate your tax, take your gross annual income, subtract the 800,000 naira threshold and your 20 percent rent relief as defined by your lease agreement, and apply the progressive tax brackets to the remaining balance. When managing freelance side hustle income alongside your salary, you must report these as independent professional earnings under the self-assessment section to ensure they are taxed correctly, as your employer will only have accounted for your base salary PAYE. Before you hit submit, ensure you have your digitized Bank Verification Number validated bank statements and the new electronic Certificate of Income from your employer ready to upload, as these are the mandatory proof points for your filing. Do not wait until the April deadline, as the system tends to experience significant downtime during the final week, and the new penalties for late submission are strictly enforced by automated triggers in the portal.