Asking for a deposit is one of the simplest ways to protect your cash flow. It covers your upfront costs, confirms the client is serious, and reduces the risk of doing work you never get paid for. But the paperwork needs to be clear: the client should see exactly what they paid upfront, and the final invoice should show how that deposit was applied. This guide covers how to do both.
When to ask for a deposit
Deposits make sense whenever you take on cost or risk before the job is finished. Common examples:
- You need to buy materials or book subcontractors before starting, as in construction or landscaping
- You are reserving a date and turning other work away, as with weddings, events, and catering
- The project is long, so you want payment spread across milestones
- You are working with a new client and have no payment history with them
Typical deposits range from 25 to 50 percent of the total, though some event businesses take more. There is no single right number; choose one that covers your upfront costs and that clients in your field will accept.
How to write a deposit invoice
A deposit invoice is a normal invoice with its own number. It just bills for part of the total rather than the whole job. Include:
- A clear label. Use a title like "Deposit Invoice" or a line description that says "Deposit".
- A regular invoice number from your main sequence. See our guide to invoice numbering.
- The project and its total value. For example, "Deposit (40%) for kitchen remodel, total project value $12,500.00."
- The deposit amount as the line total.
- A due date, usually before work starts or before a booking is confirmed.
- Deposit terms, stating whether the deposit is refundable and under what conditions.
Here is how the line items might look:
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Deposit (40%) for kitchen remodel per quote Q-0091, total project value $12,500.00 | 1 | $5,000.00 | $5,000.00 |
| Total due | $5,000.00 |
Tax treatment of deposits differs between countries. In some places tax is due when the deposit is received, in others only when the work is delivered. Check with your accountant whether to charge tax on the deposit invoice or only on the final one.
How to show the deposit on the final invoice
When the job is done, issue a final invoice for the full project, then subtract the deposit as its own line. This makes the math transparent and gives your client a complete record of the project in one place.
| Description | Amount |
|---|---|
| Kitchen remodel, labor and materials per quote Q-0091 | $12,500.00 |
| Additional under-cabinet lighting, approved Oct 14 | $420.00 |
| Subtotal | $12,920.00 |
| Less deposit paid, invoice INV-0215 (received Sep 3) | -$5,000.00 |
| Balance due | $7,920.00 |
A few points to get right:
- Reference the deposit invoice number and the date you received the payment.
- Show the full project value first, then the deduction. Do not just bill the remaining amount as if it were the whole job, because that makes your records harder to reconcile.
- Apply tax consistently. If you charged tax on the deposit, make sure you do not charge it twice on the final invoice. Your accountant or invoicing tool can help you get this right.
- Use a negative line or a "Less deposit" label. Our free invoice generator lets you add a negative line item so the balance calculates automatically.
Refundable vs non-refundable deposits
Clients often ask what happens to their deposit if plans change. Spell it out on the invoice and in your contract so there is no argument later.
A refundable deposit is returned if the client cancels within certain conditions, for example more than 30 days before the start date.
A non-refundable deposit (sometimes called a retainer or booking fee) is kept if the client cancels, because it compensates you for holding the date or for costs already incurred.
Whether a non-refundable deposit is enforceable depends on local consumer law and on whether the amount is reasonable compared to your actual losses. If you rely heavily on non-refundable deposits, ask a lawyer to review your wording.
Example wording
A deposit of 40% ($5,000.00) is required to schedule work and order materials. The deposit is fully refundable if you cancel in writing at least 14 days before the scheduled start date. Cancellations within 14 days of the start date will be refunded less the cost of any materials already ordered. The deposit will be deducted from the final invoice.
A non-refundable booking deposit of $1,500.00 is required to reserve your event date. This deposit secures the date and covers planning work that begins immediately, and it is not refundable if the event is cancelled. If the event is rescheduled with at least 60 days' notice, the deposit will be transferred to the new date once. The deposit will be credited against the final invoice.
Tip: Ask for the deposit before you buy materials or block out the date, not after. A deposit that arrives after you have already committed resources does not protect you.
Deposits, milestones, and balance payments
For larger projects, a single deposit and a final invoice may leave too long a gap. Consider milestone billing instead: a deposit to start, one or two progress invoices, and a final invoice for the remainder. Each invoice gets its own number, and the final one lists all previous payments as deductions.
Whatever structure you choose, agree it in writing before work starts, and set clear payment terms for the balance. If a balance payment runs late, our guide on how to chase late payments has reminder templates you can use.
Frequently asked questions
Is a deposit invoice a real invoice?
Yes. A deposit invoice is a normal invoice that bills part of the total upfront. It should have its own number from your main sequence, a due date, and a clear description showing it is a deposit.
How much deposit should I ask for?
Many small businesses ask for 25 to 50 percent, depending on upfront costs and industry norms. Aim for an amount that covers your materials and the risk of holding the time. Larger or longer projects often split payments into milestones as well.
Do I charge sales tax on a deposit?
It depends on where you operate. Some tax systems treat the deposit as taxable when received, while others tax only the final supply. Check with your accountant so that tax is charged once and at the right time.
What is the difference between a deposit and a retainer?
A deposit is usually a partial payment toward a specific project and is deducted from the final bill. A retainer can mean either an upfront payment held against future work or an ongoing monthly fee for availability. Spell out which you mean in your terms.
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