If you already have an eTSC account, you can perform

• User maintenance (add, update or delete users)
• Assign or update your Power of Attorney
• Update your ACH Direct Debit bank account information

Perform User Maintenance (PDF)

Assign or Update Power of Attorney

Update ACH Direct Debit Bank Account Information (PDF)

The completed form(s), with required documentation, can be returned to OTR:

• Fax all documents to (202) 442-6388
• Email all documents to [email protected]
• Mail all documents to:
  Office of Tax and Revenue
  Returns Processing Administration, 4th Floor
  1101 4th Street, SW
  Washington, DC 20024