The Proof of Submission of Return (PSR) is a formal acknowledgment slip or certificate issued by the NBR that serves as concrete evidence that a taxpayer has successfully filed their annual income tax return. Under the current Income Tax Act, merely having an e-TIN is no longer sufficient for accessing many essential civic and financial services; you must actively present your PSR.

The NBR has made the presentation of the PSR mandatory for more than forty different types of services across the country. These include fundamental financial actions like applying for or renewing a bank loan exceeding a certain amount, opening or maintaining a credit card, and opening a letter of credit (LC) for import businesses. It is also strictly required for real estate transactions, registering a motor vehicle, participating in government tenders, obtaining or renewing a trade license, and even getting child admissions into English medium schools. The strict implementation of the PSR mandate is designed to ensure widespread tax compliance and prevent tax evasion among higher-income demographics.