Free GST invoicing and business tools for India
Invoice Mitra is a set of tools for the paperwork an Indian business actually has to produce — a GST tax invoice that survives a Rule 46 check, HSN and SAC codes that match the supply, TDS deducted at the right rate, a bill of supply where the scheme requires one, and the arithmetic that sits behind all of it. Everything runs in your browser, nothing is uploaded, there is no account and there is no watermark on the output. Start from the invoice builder if you need to send a bill today, or jump to whichever calculation you are stuck on.
Start with the document, not the template
The invoice generator is the tool most people need, and the template pages are for when you want a blank workbook to keep. A tax invoice needs a consecutive serial number unique for the financial year, the date, both parties with GSTINs where the recipient is registered, a description, the HSN or SAC code, quantity, rate, the taxable value, tax shown as CGST and SGST or as IGST depending on the place of supply, and the total. The builder asks for those fields in that order and produces a PDF, an image or an Excel sheet that already adds up.
The three documents are different documents
A quotation is an offer, a proforma invoice is a pre-supply request for payment that looks like the eventual bill, and a tax invoice is the only one of the three that supports input tax credit. Sending a proforma where a customer needs a tax invoice is the most common document mistake small businesses make, because the two look nearly identical. A bill of supply replaces the tax invoice entirely for a composition-scheme dealer, shows no tax, and must carry the declaration that the supplier is not eligible to collect tax.
Calculators here follow the law rather than a rule of thumb
The tax calculators distinguish intra-state from inter-state supplies, which changes the split rather than the total. The TDS calculator carries the section rates for contractors, professional fees, rent and commission, and the Section 206AA rate for payees without a PAN — the one that catches people out at 20%. The e-way bill calculator reads the consignment value threshold and the distance-based validity, including the shorter validity for over-dimensional cargo. Each of these has a rule behind it that the calculator cannot decide for you.
Getting paid is part of invoicing
An invoice that is correct and unpaid is still a problem, so the payment tools sit alongside the document tools rather than somewhere else. Generate a UPI QR code with your VPA and an optional amount so a customer can scan and pay in one step, scan a QR before you pay it to confirm the payee is who they claim to be, create a signature image to sign documents digitally, and generate payment reminders on a cadence that starts before the due date rather than after it.
Two things this site will not do for you
It will not choose your GST rate for you or file your returns. Classification depends on the specific supply and the rate on a code depends on conditions such as input tax credit eligibility, and both are your call to make and verify. And the generators run entirely in your browser, which means your invoice data stays on your device — there is no account storing a copy, so the record you keep is the record you have.
How to use this tool
- Create a GST tax invoice, or download a blank template in Excel, Word or PDF.
- Classify each line with the right HSN or SAC code and digit length.
- Check the place of supply so CGST and SGST or IGST is split correctly.
- Deduct TDS at the section rate before releasing a payment to a vendor.
- Take payment by UPI QR, and follow up on a cadence if the date passes.
Frequently asked questions
How do I create a free invoice without signing up?
Visit Invoice Mitra, enter your business and customer details, add line items with tax rates, and download your professional PDF invoice instantly. No signup, no email required.
What tax systems does Invoice Mitra support?
Invoice Mitra supports Indian GST (CGST/SGST/IGST with GSTIN & HSN/SAC). Tax rules are applied automatically for intra-state and inter-state billing.
Is Invoice Mitra really free?
Yes, Invoice Mitra is 100% free. You can create unlimited invoices, download PDFs, share via WhatsApp, and track payments at no cost. No credit card required.
Does Invoice Mitra support tax calculations?
Yes. Invoice Mitra automatically calculates CGST + SGST for intra-state transactions and IGST for interstate billing across India.
Can I download invoices as PDF without registration?
Yes. Every invoice created on Invoice Mitra can be downloaded as a professional PDF file instantly without any registration. You can also share it directly via WhatsApp or email.
Can I share invoices via WhatsApp?
Yes. After creating your invoice, you can share it directly via WhatsApp or email with one click. It is the fastest way to get paid.