How to invoice for a deposit, and what goes on the final invoice
How to structure a deposit invoice correctly, and exactly what the final invoice should show once that deposit's been paid, with a worked example.
Plenty of small businesses are comfortable asking for a deposit but less sure what to actually put on the paperwork — both the deposit invoice itself, and the final one that follows it. Get this part wrong and you end up with mismatched numbers, a client who's confused about what they still owe, or a set of books that don't reconcile cleanly at tax time. Get it right and the whole thing takes about two extra minutes per job.
A deposit invoice is a real invoice, not a placeholder
Some businesses send a deposit request as a quick email — "can you pay $500 to get started?" — without ever turning it into a proper invoice. That works until there's a dispute, a late payment, or a reconciliation at year end, at which point you want a dated, numbered document showing exactly what was agreed and what's been paid against it.
Treat the deposit the same way you'd treat any invoice:
- Give it its own invoice number, in your normal sequence.
- Label the line item clearly — "Deposit — 40% of quoted total" rather than just a dollar figure.
- Reference the quote or job number it relates to, so anyone looking at it later can see what it was for.
- Apply tax the same way you would on the final invoice, if you charge it. Whether GST, VAT or sales tax applies to a deposit — and how much — depends on your country's rules and sometimes on whether the deposit is refundable, so check the specifics with your accountant rather than guessing.
If you want the wording and psychology of actually asking for a deposit, that's covered in how to ask for a deposit before starting work — this one picks up from the moment the deposit's been paid and focuses purely on the paperwork.
What goes on the final invoice
This is the part people most often get wrong: once the job is done, the final invoice should not ask the client to pay the full amount again. It should show the full value of the work, with the deposit already paid subtracted as a credit, leaving only the balance owed.
A clean final invoice includes:
- The full line-item breakdown of the completed work or goods, as if no deposit had been paid at all.
- The subtotal and any tax, calculated on the full amount.
- A clearly labelled deduction — "Less: deposit paid (Invoice #INV-0180, 12 March) — $720" — showing the exact amount and which earlier invoice it came from.
- The remaining balance due, in bold or otherwise highlighted, since that's the only number the client actually needs to act on.
Skipping the breakdown and just invoicing "balance owed: $1,080" technically works, but it makes the job harder to query later — for you, for the client, and for whoever does your books. Showing the full value and the deduction keeps a complete record of what the job was actually worth, which matters if you ever need to reference it for a reference, a warranty claim, or a tax query.
A worked example
Say you quote a kitchen renovation at $9,000 including GST, and ask for a 30% deposit upfront to cover materials.
Deposit invoice (sent at booking):
- Deposit — 30% of quoted job total ($9,000)
- Amount due: $2,700
- Reference: Quote #Q-0094
Once that's paid, the job goes ahead. When it's finished, the final invoice looks like this:
Final invoice (sent on completion):
- Kitchen renovation — full scope as quoted: $9,000
- Less: deposit paid (Invoice #INV-0211, 2 September): –$2,700
- Balance due: $6,300
Nothing about the original $9,000 figure disappears — it's still there, visible, just with the deposit clearly netted off. Anyone glancing at either invoice on its own can tell exactly what's happened.
If the job changes after the deposit is paid
Two situations come up often enough to plan for:
The final price changes. If the scope grows or shrinks between the quote and completion, the final invoice should reflect the new total, with the same deposit deducted from that updated figure — not the original quoted amount. Note the change briefly on the invoice ("final price adjusted for additional materials, see updated scope") so it isn't a surprise.
The job is cancelled after the deposit is paid. If you're keeping some or all of the deposit as a cancellation fee (common for bookings and event work), that's usually fine as long as it was stated upfront — but you don't just delete the deposit invoice. If any portion needs to be refunded, issue a credit note against the original deposit invoice for the refunded amount, rather than editing or voiding it. That keeps a clean trail of what was charged, what was kept, and what went back.
A simple deposit-to-final checklist
- Deposit invoiced separately, with its own number, referencing the quote or job.
- Tax treatment on the deposit decided with your accountant, not guessed at.
- Final invoice shows the full job value, not just the remaining balance in isolation.
- Deposit deducted as a clearly labelled line, referencing the original deposit invoice number.
- Balance due highlighted so it's the one number the client can't miss.
- Any price change between quote and completion noted plainly on the final invoice.
Keeping the numbers lined up automatically
The error that causes the most confusion is manual: typing the deposit amount into the final invoice by hand, and getting the subtraction wrong, or forgetting which invoice number it came from. InvoiceCharlie links a deposit invoice to the job it belongs to, so when you raise the final invoice it pulls the deposit in automatically as a deduction — full value, deposit referenced, correct balance, every time. If you just need to send a one-off deposit or final invoice right now without setting anything up, the free invoice generator will put one together in your browser in a couple of minutes.