Invoice & Receipt Generator

How to use

Choose invoice (a request for payment) or receipt (proof of payment), add your details and a line per item, and the totals update as you type. Tax, discount, shipping, amount already paid, logo, signature and payment terms are all optional. The PDF is built in your browser — no watermark, no sign-up, nothing uploaded — and Save draft keeps a copy in this browser for repeat clients.

What an Australian tax invoice must include

If you're registered for GST and a customer asks for a tax invoice, you must give them one within 28 days — unless the sale is $82.50 or less including GST (ATO). For sales under $1,000 it must make clear seven things:

1. that the document is intended to be a tax invoice;
2. the seller's identity;
3. the seller's ABN;
4. the date it was issued;
5. a brief description of what was sold, with quantity (if applicable) and price;
6. the GST amount — shown separately, or, if it's exactly one-eleventh of the total, the statement “Total price includes GST”;
7. the extent to which each sale on the invoice is taxable.

For sales of $1,000 or more, add the buyer's identity or ABN. A PDF emailed to the customer counts, as long as it contains everything above. Registration for GST is required once your GST turnover reaches $75,000 in GST turnover — gross business income minus GST — whether current or projected for the year, and you then have 21 days to register.

Keep the copies. The ATO requires you to keep most business records for 5 years, and a record should show at least the date, amount, description and GST details of the transaction and its purpose. Records must be stored so they can't be altered — electronic sales suppression tools are specifically ruled out (ATO). Save every PDF you issue from here; browser drafts aren't a record.

How the totals are calculated

balance due = (subtotal − discount) + tax + shipping − amount paid. Each line is quantity × unit price, rounded to the cent; the discount comes off before tax; shipping is added after tax and isn't taxed. In per-line tax mode the discount is spread across lines in proportion to their amounts, so each line is taxed on what it actually cost.

Worked example

Say you bill a client for 10 hours of design at $50.00 and a one-off $120.00 hosting setup. The two lines come to $500.00 and $120.00, a subtotal of $620.00. Apply a 10% loyalty discount (−$62.00) and the taxable amount is $558.00. At a 10% GST rate, tax is $55.80, so the total due is $613.80. If the client already paid a $200.00 deposit, enter it as the amount paid and the invoice shows a balance due of $413.80. Switch the document type to Receipt once they settle the rest, keep the same numbers, and you have a matching proof-of-payment PDF.

Tips and common mistakes

• Title it “Tax invoice”. Choose Invoice above and add “Tax invoice” to the notes so the intent is unmistakable.
• Over $1,000? Add the buyer's ABN. Put it in the Bill To block — without it your customer can't rely on the invoice to claim GST credits.
• Number every invoice sequentially. Gaps or duplicates cause reconciliation headaches at tax time.
• Keep the PDF. Saved drafts live in this browser only — the downloaded PDF is your permanent record.
• The total isn't what you keep. Tax on your profits comes out later— run expected billings through the income tax & take-home pay calculator so the bill isn't a surprise.

Because the calculation logic is the same code that renders the PDF, the figures you see on screen always match the downloaded document — there's no separate export path to drift out of sync.