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  1. Home
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  3. Business & Writing
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  5. Invoice Generator

Invoice Generator

Free invoice generator: build clean PDF invoices with logo, GST, tax & totals. Works offline in your browser, no sign-up needed.

Part of our Business & Writing collection — Explore more Business & Writing tools · See also: Resume Builder, Commission Calculator.

Also available in: versión en español → · version française →

Quick answer: Invoice Generator — Free PDF with GST & logo Free, no signup, runs in your browser. See below for the interactive tool, 4-step guide and FAQs.

Invoice details

USD
Currency
From
Bill to
Invoice #
Issue date
Due date
Need guidance on formats or terms? See our invoice numbering guide and payment terms guide.
Description
Qty
Rate
Notes
Tax %

INVOICE

Your Company 123 Main St you@example.com

#INV-001
Issued: 2026-10-29

Bill to

Client Name Client Address client@example.com

DescriptionQtyRateAmount
Service1$100.00$100.00
Subtotal$100.00
Tax (0%)$0.00

Total$100.00

Thank you for your business!

GST invoice details

Supplier
Bill to (client)
GSTIN
Invoice #
Invoice date
Karnataka
Place of supply
18%
GST rate
Template only, not tax advice. Confirm GSTIN, SAC and rates with your CA.
Description
Qty
Rate (INR)

TAX INVOICE

Your Name Your Address you@example.com

GSTIN: —

#INV-001
Date: 2026-10-29
Place of supply: Karnataka

Bill to

Client Name Client Address

DescriptionQtyRateAmount
Consulting services1₹5,000.00₹5,000.00
Subtotal₹5,000.00
CGST (9%)₹450.00
SGST (9%)₹450.00

Total₹5,900.00

More Business & Writing

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View all Business & Writing tools →

Learn: guides & tutorials

Deep dives from the Tool4SaaS blog — tested workflows, print sizes and fixes.

  • Free Invoice Generator Guide (pillar)
  • How to create an invoice online in 5 steps
  • 12 invoice mistakes that delay payment
  • Invoice numbering: GST-compliant formats & sequences
  • Free invoice templates: Word, Excel & PDF formats
  • GST invoice format India: fields, HSN & sample
  • Freelancer invoice guide: get paid on time

About the author

Reviewed by the Tool4SaaS Editorial Team — In-house reviewers who build and test every tool locally for accuracy across current Chrome, Edge, Firefox, and Safari. Last updated: October 23, 2026. See our authors, methodology or contact us.

Frequently asked questions

Yes, completely free with no sign-up. Everything runs in your browser; e.g. a 10-line $550 invoice with logo stays on-device, works offline, and Print to PDF is unlimited. No account, watermark or upload is required.

Yes. Use browser Print with Ctrl or Cmd+P and choose Save as PDF; the layout is print-formatted. Example: INV-2026-001 dated Sept 14, 2026 saves as invoice-acme-001.pdf with logo, $500 subtotal, $50 tax and $550 total crisp on A4.

You can add up to 50 line items with qty, rate and tax, e.g. 3 design tasks at $250 each, with auto subtotal, tax and grand total. For instance, that trio totals $750 subtotal and 10% tax ($75) for $825 due, recalculated live in the preview. Logo, invoice number and Print to PDF stay offline on-device. See /terms.

Apply 9% CGST and 9% SGST for intrastate supply and 18% IGST for interstate supply. For example, Rs 20,000 services in Maharashtra split Rs 1,800 and Rs 1,800, while Karnataka to Delhi levies Rs 3,600 IGST. Mention GSTIN, HSN codes and place-of-supply, then confirm slabs with your accountant. See /terms.

Choose Net15 for freelancers needing faster cashflow and Net30 for corporate clients requiring procurement approval. For example, Sept 14 invoice on Net15 falls due Sept 29 with 1.5% late fee, while Net30 reaches Oct 14. Add early-bird 2/10 discount, define penalties, and track remittance diligently. See /terms.

How to use Invoice Generator

  1. Enter sender details: Add business name, logo, address, invoice number INV-2026-001, issue date Sept 14 2026, due date, client email and currency before adding rows.
  2. Add line items: Add rows like Logo design quantity 2 at $250 each, consulting 6 hours at $120, set 10% tax, discount, HSN codes and notes per line.
  3. Review totals: Review subtotal $500, tax $50, grand total $550, balance due, Net15 terms, late fee clause and rounding in the live preview pane carefully.
  4. Download or print: Choose Print, select Save as PDF, name file invoice-acme-001.pdf, pick A4 margins, enable backgrounds, then email client and archive copy offline.

In-depth guide

What a professional invoice is

A professional invoice is a payment request listing seller identity, buyer billing address, sequential number, issue date, line items, taxes and balance due with stated terms. Freelancers billing 3 branding tasks at $250 each show $750 subtotal and 10% sales tax ($75) for $825 due, while workshops selling 20 ceramic mugs at $40 each show $800 subtotal before tax. Our invoice generator assembles this layout locally with your logo, 50-line capacity, automatic arithmetic and print-ready styling that exports crisp A4. Indian sellers add GSTIN, HSN codes and place-of-supply; the split below decides CGST/SGST versus IGST: | Shipment | Tax regime | Levy on Rs 20,000 | Maharashtra intrastate | 9% CGST + 9% SGST | Rs 1,800 + Rs 1,800 | Karnataka to Delhi interstate | 18% IGST | Rs 3,600 |. Sequential numbering like INV-2026-001 prevents duplicates and simplifies auditor reconciliation. Edge case: credit notes need negative quantities rather than deleting originals. Limitation: formatting only, not bookkeeping or legal advice. Draft a proforma quote first with /invoice-generator. See /terms.

How invoice totals are calculated

Totals use subtotal as quantity times rate per line, then tax equals subtotal times tax percent in one pass, then grand total adds subtotal and tax minus discounts and shipping. For example, 2 logo concepts at $250 each give a $500 subtotal; 10% tax adds $50 for a $550 total on INV-2026-001. Add a $60 rush surcharge and $25 courier fee to reach $585 subtotal, $58.50 tax and $643.50 payable, recalculated instantly in preview. Payment windows change cashflow dramatically: | Terms | Due date on Sept 14 invoice | Overdue penalty | Net15 boutique | Sept 29 | 1.5% monthly late fee | Net30 enterprise | Oct 14 | 2% monthly and collections |. Offer 2/10 net 30 early-bird discount (2% off if paid within 10 days) to accelerate remittance via UPI, wire or cards. Edge case: rounding penny differences need a tolerance ledger line. Limitation: excludes payroll withholding and jurisdictional filing. Log receipts after payment with /receipt-generator. See /terms.

Invoice worked example: $500 subtotal to $550 total

Build INV-2026-001 dated Sept 14, 2026 for Acme Retail: line one Logo design quantity 2 at $250, line two brand guidelines 6 hours at $120, subtotal $1,220, less $50 loyalty coupon and 10% tax $117, grand total $1,287 due Oct 14 on Net30. Confirm $500 baseline variant (2 x $250 and $50 tax equals $550) in preview, then choose Print, Save as invoice-acme-001.pdf on A4 with backgrounds enabled. Numbering rules keep audits clean: use prefix INV and fiscal year and zero-padded sequence (INV-2026-001, INV-2026-002), never reuse gaps, and restart annually with an index log. Compare Net15 versus Net30 before sending; freelancers chasing rent prefer Net15 with late fees, agencies serving corporates accept Net30. Edge case: partial deposits need balance-forward footnotes. Limitation: no recurring dunning or Tally sync. This is document help only, not accounting advice. Verify with your accountant. See /terms.