GST & Billing for MSMEs

What is GSTR-1 and why does it matter?

GSTR-1 is the GST return in which a registered business reports its outward supplies — the sales it made — including B2B invoices, B2C sales and an HSN summary of goods and services. Filing it accurately matters because your customers' input tax credit and your own compliance depend on matching records. Manually retyping sales into a return is slow and error-prone, which is why OpenBill Pro exports a GSTR-1 portal-ready CSV from your invoices. The CSV covers B2B, B2C and HSN data with CGST, SGST and IGST breakup, so your accountant can file without rebuilding your sales from paper bills.