How to Close Out a Client Retainer Without Duplicate Billing

BLANK WORKSHEET
RETAINER CLOSEOUT CHECK
Client / agreement / notice reference: [details]
Final service dates: [dates]
Final billing basis / approval: [details]
Approved extras / pending exclusions: [details]
Received advances / prior allocations: [amounts / references]
Open invoices / balance / disputes: [details]
[ ] Recurring rule reviewed
[ ] Next planned invoice and unsent drafts reviewed
[ ] Future send state verified
[ ] Final invoice and payment records reconciled
Handover owner / unresolved next action / review date: [details]

FILLED EXAMPLE (fictional)
Fictional October retainer: USD 3,100 full period, agreed final service Oct 1–15. Calendar-day subtotal USD 1,500 before tax. Review the November rule and separate drafts; keep an earlier unpaid invoice assigned to the billing owner.

BEFORE USE
Replace every bracketed field. Examples are illustrative. Confirm your agreement, local invoice requirements, and applicable tax treatment separately. This download does not send an invoice or update a billing record.

Source page: https://www.getinvoiceagent.com/guides/close-out-client-retainer
Reviewed: 2026-10-02