Services of Abia IRS

Is Your Tax Indentification Number Valid?

For Companies:
To validate your ATIN, click on the button below:

Validate ATIN (Companies)

For Individuals:
To validate your ATIN, click on the button below:

Validate ATIN (Individuals)

What is an ATIN ?

ATIN stands for Abia State Tax identification Number. It is an Electronic Number that uniquely identifies a Tax paying entity (Individual or Company) to the Abia State Government and Abia State board of internal revenue Service. To access most online services of the Abia state internal revenue service; you would need your ATIN. Your ATIN is generated once for life. Register and get your ATIN online: