Visit the official tax authority website or portal for your country
Log in to your registered account
Go to the TPIN registration or taxpayer registration section
Fill in the required personal or business details
Submit the application
Complete any required identity verification
Receive your TPIN by email, SMS, or on the portal
If you do not have an online account, visit the nearest tax office with your ID and required documents
Request TPIN registration from a tax officer
Collect your TPIN after processing is completed