Invoicing a deposit without losing the thread

Choose a billing structure before work starts

For a simple job with one agreed price, one invoice with separate payment records makes the running balance easy to follow. Some businesses use separate stage invoices under their own billing or accounting process. This guide describes the single-invoice workflow; it is not a rule for every contract or tax situation.

Keep the total and each payment distinct

1. One invoice for the whole job, showing the full amount
2. Record each payment against that invoice as it arrives
3. Prepare an appropriate receipt for money received, with the invoice reference and a clear description of the payment

One invoice number, one running balance, one place to look when the customer asks what is outstanding.

What it looks like in practice

Date	Document	Amount	Balance
5 Jan	INV-0182 — full job	RM1,175.94	RM1,175.94
5 Jan	RCP-0091 — deposit	RM500.00	RM675.94
2 Feb	RCP-0104 — final	RM675.94	RM0.00

This fictional example uses standalone receipts for the individual payments. Enter the invoice reference and remaining balance in the receipt notes, and reconcile them with the invoice payment records. InvoisLaju does not automatically generate linked receipts for individual instalments.

Agree the deposit with the customer

Discuss the actual amount, when it is due, what work starts after payment and what happens if the scope changes or the job is cancelled. Put the agreement in writing before taking payment. A template percentage is not a substitute for agreeing the terms of this particular job.

Stage payments on longer jobs

For work that runs over weeks, tie each stage to something the customer can see:

Stage	Trigger	Payment stage
1	On acceptance of quotation	Deposit
2	Materials delivered to site	Progress
3	Work complete, before handover	Balance

Define how both sides will confirm that a milestone is complete and when the related payment is due. Keep the wording consistent with the accepted quotation.

Put the terms on the quotation, not the invoice

By the time you send an invoice, the payment structure should already be agreed. State it on the quotation — deposit amount, what triggers each stage, and what happens if the job is cancelled. Then the invoice simply follows what was accepted.

Three things to avoid

• Taking a deposit with no document at all. Cash in hand and nothing written is how the argument starts.
• Issuing the receipt before the money clears. A cheque that bounces after you have issued a receipt is a difficult conversation.
• Letting the balance go unrecorded. If the second payment never gets logged, your own records say the job is still owing — and eventually you will chase a customer who already paid.

Read next: Chasing a late invoice · Invoice vs quotation · All guides