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OmniTools

Free Invoice Generator

Create professional PDF invoices instantly without signing up. Add custom items, taxes, discounts, and client details to export clean vector billing PDFs.

All business tools

In-Browser Vector PDF Invoice Generator

100% private client-side generation. Zero data is ever stored on any server.

Your Business (From)

Client (Bill To)

Payment Details & Notes

Line Items

Subtotal:$5250.00
Discount (5%):-$262.50
Tax / VAT (8%):+$399.00
Total Amount Due:$5386.50

This tool runs entirely in your browser. Nothing you enter is uploaded, stored, or logged.

Quick Answer

How do you calculate invoice subtotal, discount, and VAT/sales tax?

Subtract the discount from the subtotal first to find the net taxable amount, then multiply by the tax percentage and add it back to arrive at the final total.

Formula: Total = (Subtotal - Discount) × (1 + Tax Rate % ÷ 100)

For example, on a $4,000 subtotal with 5% discount ($200) and 8% VAT, taxable balance is $3,800, tax is $304, and total due is $4,104.

What this tool does

Billing corporate clients, agency accounts, or freelance contracts should never require paying recurring monthly SaaS subscriptions or handing proprietary client data over to third-party cloud servers. This free in-browser PDF invoice generator empowers contractors, consultants, freelancers, and small business owners to produce publication-grade, professional commercial invoices in seconds. It handles dynamic multi-currency line items, automated subtotal arithmetic, percentage discounts, and multi-tier VAT or GST sales tax rates, compiling crisp vector PDF documents directly inside your browser memory without storing or transmitting your sensitive client records anywhere.

How it works

Enter your business identity, legal trade name, contact address, official billing email, and corporate tax registration or GSTIN credentials into the sender section. Add your client's billing information, project name, custom sequential invoice reference number, date of issuance, and mandatory payment due date.

Add as many dynamic line items as needed to detail billable hours, software licenses, or tangible product shipments. The generator continuously computes quantity times unit rate for each entry, maintaining real-time mathematical precision across all line items without cumulative rounding drift.

Configure your applicable regional sales tax, VAT, or GST percentage alongside any promotional or negotiated commercial discount. The arithmetic engine automatically deducts discounts from taxable goods before computing tax, yielding a crystal-clear itemized financial breakdown ready for corporate auditing.

Include comprehensive wire transfer instructions, routing numbers, SWIFT/BIC codes, IBAN numbers, PayPal email links, or explicit Net-14 or Net-30 payment terms. Click 'Download PDF' to instantly invoke the client-side vector engine, which draws clean typography, structured tables, and divider lines onto standard A4 paper dimensions ready for immediate email dispatch.

Worked example

A freelance software engineer completes a 40-hour sprint at $85/hour plus $650 infrastructure setup for a UK client and needs to send a professional PDF invoice with 5% discount and 8% VAT.

  1. Fill in business name, contact info, and client details in the invoice editor
  2. Add two line items: 40 hours @ $85 and 1 setup @ $650, totaling $4,050
  3. Input 5% discount (-$202.50) and 8% VAT (+$307.80) to calculate the final total of $4,155.30
  4. Click 'Download PDF' to save the finished invoice directly to disk

A publication-ready A4 vector PDF invoice with clean table layout, payment instructions, and exact totals is generated and downloaded in less than 500 milliseconds.

Accuracy and limitations

  • Because all document generation executes strictly in your browser's local memory, reloading the page will reset unsaved form inputs. Always download your generated PDF before closing the browser tab.
  • Check your local jurisdiction's invoicing regulations for statutory requirements, such as mandatory sequential numbering or specific reverse-charge VAT disclaimers.
  • Multi-currency symbols ($, €, £, ₹, ৳, C$, A$) format the display correctly; ensure exchange rates are accounted for if billing foreign cross-border clients in other currencies.

Frequently asked questions

Is this invoice generator completely free to use?
Yes, 100% free with no monthly subscription, no account registration required, and no hidden watermarks stamped on your downloaded invoices.
Are my company financials or client details stored on your servers?
No. The invoice generator runs entirely client-side using JavaScript in your web browser. Neither your business details, client names, line items, nor totals are ever uploaded to any database.
Can I customize the currency for international clients?
Yes. You can select standard global currencies including US Dollars ($), Euros (€), British Pounds (£), Indian Rupees (₹), Bangladeshi Taka (৳), Canadian Dollars (C$), and Australian Dollars (A$).
How does the sales tax and discount calculation work?
Discounts are deducted from the subtotal first to establish the true taxable balance. The tax or VAT rate is then computed on the discounted balance to comply with international accounting standards.
Can I print the invoice directly or save it as a PDF?
Both options are supported. You can click 'Download PDF' for a clean vector PDF rendered by our built-in PDF engine, or use 'Print / Browser PDF' to print directly via your system printer dialog.
What information should every freelance invoice include?
A valid commercial invoice should include your business name and contact information, the client's name and address, a unique sequential invoice number, issue date, payment due date, an itemized list of deliverables with prices, total amount due, and bank payment instructions.