Stop losing 2% to payment gateways. VyaparStack generates consecutive alphanumeric invoices, embeds NPCI UPI QR codes for instant 0% settlement, and exports GSTR-1 Table 4A JSON.
Zero login required. Verify counterparty GSTINs, calculate pre-tax invoices from gross budgets, find statutory SAC codes, generate direct UPI QR codes, and compute MSME late payment interest.
Instantly validates 15-character Indian GSTINs, decodes state jurisdiction code, extracts PAN characters, and computes the 15th statutory check digit.
Calculate the exact pre-tax taxable base from client all-inclusive gross fees. Automatically splits 50/50 CGST & SGST or 100% IGST with paise precision.
Searchable statutory Services Accounting Code (SAC) database for software developers, IT consultants, designers, legal advisors, and marketing agencies.
Generate standard NPCI OC-97 / OC-103 compliant dynamic UPI QR codes and 1-tap mobile intent links (`upi://pay`) with pre-filled amounts and invoice reference.
Calculate statutory delayed payment compound interest under Section 16 of the MSMED Act (3x RBI Bank Rate) and Section 50 CGST tax interest (18% p.a.).
How Indian GST and Income Tax statutes govern billing and commercial receivables.
Rule 46 stipulates 16 mandatory particulars on a tax invoice, including consecutive alphanumeric serial numbering unique for each financial year, client GSTIN/UIN, SAC code, state code, and tax split.
Enforces payment to registered Micro and Small enterprises within 15 days (or up to 45 days with written agreement). Failure disallows the buyer from claiming tax deduction on the expense in that fiscal year.
Exempts service providers making inter-state taxable supplies from compulsory GST registration if their aggregate annual turnover does not exceed ₹20 Lakhs (or ₹10 Lakhs in Special Category States).
Permits Indian service exporters to supply services without payment of integrated tax by furnishing a Letter of Undertaking (LUT) in Form GST RFD-11 valid for the entire financial year.