A deposit invoice bills an agreed advance payment — an amount your customer pays before the final invoice for the delivered goods or services is issued. This lets you collect money up front while keeping the advance payment cleanly documented as its own billing document.

Where to find deposit invoices

To see all finalized deposit invoices, navigate to: Billing > Documents > Deposit Invoices.

How deposit invoices are created

On the platform: deposits are agreed on the line items of an order — see Manage deposits. Whether and how deposit invoices are created is configured per billing group via the Deposit invoice creation setting.

Via Document API: if you have already billed the advance payment in your own system, you submit the billing data including tax details, and instellix creates the compliant deposit invoice.

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To adjust a finalized deposit invoice, create a deposit invoice correction — the original document itself remains unchanged.

Via API

Create a deposit invoice with POST /v2/documents/deposit-invoices. Read documents via query documents or get a single document.