Tax Liability Breakup

This tab is for those who are filing gstr1 containing bills of earlier months too, they have to show month wise break up of tax liability in gstr3B. so that portal can calculate interest liability to be shown in next gstr3b like late filing fee.

The GST portal introduced a mandatory "Tax Liability Breakup" confirmation step from February 2026. Even if your liability relates entirely to the current period, you still need to click Save on that tab before "Proceed to File" activates. Steps: go to your GSTR-3B payment page, click the "Tax Liability Breakup, As Applicable" tab, review the auto-filled CGST/SGST/IGST breakdown, click Save, then return to file. GSTN has acknowledged this is a bug (it should only be mandatory when prior-period supplies exist) and is working on a fix. For QRMP filers paying by ITC only, the same Save step applies even with zero cash outflow.