<h1>GST Portal Introduces Interest Calculator in GSTR-3B for Accurate Self-Assessment and Simplified Tax Return Filing Process.</h1> A new interest calculator functionality is being introduced in GSTR-3B to assist taxpayers in accurate self-assessment under the Goods and Services Tax (GST). This tool will compute interest based on declared tax liabilities and auto-populate these values in the subsequent tax period's GSTR-3B. It mirrors the late fee collection process for delayed filings. The user-friendly interface will guide taxpayers in understanding interest computations for each tax head, aiding in accurate interest calculations for past liabilities. This enhancement aims to simplify the GST return filing process and reduce compliance burdens. Availability on the GST Portal will be announced soon.