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DayUtils

Invoice Generator – Create Professional PDF Invoices for Free

Fill in your details, your client’s details and the items you’re billing for, and download a clean PDF invoice. Works in any currency, handles VAT, GST or sales tax at different rates per line, discounts and shipping, and saves your draft in your browser for next time.

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How to create an invoice

  1. Choose your currency.
  2. Set the title (Invoice, Tax invoice, Quote or Receipt), the invoice number and the dates.
  3. Enter your details in From and your client’s details in Bill to.
  4. List the items, one per line: description | quantity | unit price | tax %.
  5. Set the tax name, any discount and shipping.
  6. Add notes such as payment terms and bank details.
  7. Choose A4 or US Letter and an accent colour, then Download PDF.

How the totals are worked out

Line amount = Quantity × Unit price
Tax = (Line amount × (1 − Discount %)) × Tax rate
Total = Subtotal − Discount + Tax + Shipping

Tax is calculated after the discount, and grouped by rate.

Example

ItemQtyPriceTax
Website design11,200.0020%
Hosting (12 months)1215.0020%
Consultation (hours)380.000%

Subtotal = 1,620.00. VAT at 20% on 1,380.00 = 276.00. Total = 1,896.00.

What to include on an invoice

  • The word Invoice and a unique number.
  • The issue date and due date or payment terms.
  • Your business name and address, and your tax number if you’re registered.
  • The customer’s name and address.
  • A description, quantity and price for each item.
  • Tax amounts and rates, and the total due.
  • How to pay — bank details or a payment link.

Invoicing tips

  • Number invoices in sequence (INV-0001, INV-0002…) and never reuse a number.
  • State clear terms, such as “Payment due within 14 days”.
  • Send promptly after finishing the work.
  • Keep copies of every invoice for your tax records.
  • Follow up politely on overdue invoices.

Quotes, receipts and credit notes

The same tool works for other documents: change the title to Quote or Estimate before a job starts, Receipt after payment, or Credit note when you refund part of an invoice (enter the amounts as positive numbers and explain the credit in the notes). Keep a separate numbering sequence for each type of document so your records stay clear.

Getting paid faster

Invoices with clear due dates, several ways to pay and a polite reminder before the due date tend to be paid sooner. Some businesses offer a small discount for early payment or state a late-payment fee in their terms — check what is allowed in your country.

Privacy

Your business and client details stay in your browser. Use Start over to clear the saved draft on shared computers.

Work out tax with the VAT calculator, sales tax calculator or GST calculator, and add product codes with the barcode generator.

Frequently asked questions

Is the invoice generator free?

Yes, with no sign-up, no watermark and no limit on invoices. The PDF is made in your browser.

How do I add line items?

One item per line in the format description | quantity | unit price | tax %. For example: Website design | 1 | 1200 | 20. The summary updates as you type.

Can I use different tax rates?

Yes. Each line has its own tax rate, and the totals show the tax for each rate separately — useful when some items are zero-rated or exempt. Rename the tax to VAT, GST or Sales tax.

Which currencies are supported?

Any currency in the currency list, including the dollar, euro, pound, naira, shilling, rand and rupee. Symbols that the standard PDF fonts can’t show, such as ₹ and ₦, are written as currency codes (INR, NGN) in the PDF.

Is my invoice saved?

Your draft is saved in this browser so you can come back, change the invoice number and make the next one. Nothing is uploaded. Download each PDF to keep a permanent copy.

Is this a legally valid invoice?

It includes the details most invoices need, but rules differ by country. VAT-registered businesses often must show their VAT number, the customer’s address and the tax amount per rate. Add any required details to the From and Notes boxes, and check your tax authority’s guidance.

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