Free Business Tools for Indian MSMEs
All the calculators and generators your business needs — completely free, no signup required. Use them to save time, stay compliant, and make better decisions.
GST & Tax
GST Calculator
Calculate CGST, SGST, and IGST instantly for any invoice amount and GST slab.
GST & Tax
GST Rate Finder
Search HSN codes and find the correct GST rate for any product or service.
GST & Tax
GSTIN Lookup
Verify GST numbers, check state codes, PAN details, and entity types instantly.
GST & Tax
GST Due Date Calculator
Check GSTR-1, GSTR-3B, and GSTR-9 filing deadlines with days remaining.
Invoicing
GST Invoice Generator
Create GST-compliant invoices with auto tax calculation and PDF download.
Invoicing
Invoice Number Generator
Create sequential GST-compliant invoice numbers with custom formats.
GST & Tax
E-Way Bill Generator
Preview e-way bill format, check validity rules, and understand EWB requirements.
Business
Profit Margin Calculator
Calculate gross profit, profit margin, markup, and break-even price instantly.
Inventory
Inventory Turnover Calculator
Calculate how efficiently your business sells stock and identify dead inventory.
Need These Tools Automated?
InfiBis automates all of these calculations — GST, inventory, margins, and more — directly in your billing workflow. Stop doing it manually.
Try InfiBis Free