Every dividend remittance, royalty payment, technical service fee, intercompany service charge, or interest payment from an Indian entity to a non-resident triggers a tax-deduction question and an AD-Bank documentation requirement. Form 15CA (self-declaration of tax compliance, filed on the Income Tax e-filing portal) and Form 15CB (CA certificate evidencing chargeability and tax withheld) are the standard mechanism for satisfying both. This page covers when each form is required, how DTAA benefits flow into the certification, and the AD-Bank workflow.