Skip to content
Augusta BhardwajSay hello
Work / 2025 · Accounting

ChaiBooks

GST accounting for Indian distributors

Full invoicing and accounting dashboard. Auto tax calculations, HSN codes, e-way bills, GSTR-3B.

Source on GitHub
ChaiBooks/overview1 of 4
ChaiBooks: Overview. Cash, what customers owe, the GST due and the month's sales, and who is late to pay.
3GST types handled
GeneratedE-way bills
GSTR-3BFiling report
MappedHSN codes

The problem

A small Indian distributor files GST every month, and the rules are complex (CGST, SGST, IGST, HSN codes, e-way bills). Mistakes mean penalties, and most accounting software is built for accountants rather than for the owner keeping the books.

How I built it

Built a full accounting dashboard specifically for Indian distributors. Auto tax calculations, HSN code mapping, e-way bill generation, and GSTR-3B filing reports.

ReactNode.jsMongoDBTailwind

The hard parts

  1. Implementing Indian GST correctly: inter-state vs intra-state, reverse charge, composition scheme
  2. E-Way bill generation above ₹50K threshold with proper format
  3. PDF export that matches government filing requirements
  4. State management for complex invoice line items with real-time tax calculation