Two installments
USD 5,000 less USD 2,000 and USD 1,500 leaves USD 1,500 open. A further promised USD 1,500 does not reduce the balance until confirmed.
Payment reconciliation
Free Partial Payment Balance Calculator
Check the balance to mention in your next follow-up after a client pays in installments. Enter received payments in the invoice currency and keep promised payments outside the calculation.
What you can do here
Subtract up to three confirmed receipts from an invoice total and identify the remaining balance or overpayment.
Built for real invoice workflows
Reconcile the payment first, then update the invoice status and follow-up workflow.
Preparing your calculator with today’s date…
Calculation notes
How the result is calculated
Confirmed receipts are added, then subtracted from the original invoice total. Remaining balance and overpayment are shown separately and never negative. Use amounts allocated to this invoice, not the gross value of a bank transfer covering several invoices. Fees, exchange differences, and approved credits require separate reconciliation.
Formulas and examples reviewed October 2, 2026. Illustrative figures; no tax or contractual determination.
Extra money received
USD 800 less a confirmed USD 850 receipt leaves zero open and a USD 50 overpayment to investigate. Check whether the extra belongs to another invoice before issuing a refund.
Questions about this calculation
Where do I enter a credit note?
This tool takes receipts only. Reconcile approved credits separately and adjust the starting balance only with a documented explanation. Never label a credit note as cash received.
Does the result mark an invoice paid?
No. This calculator does not change your invoices, receive money, or send reminders. Update the relevant billing record after checking the evidence.
How to use it
1
Enter the original invoice total, including its existing tax.
2
Enter up to three confirmed receipts; use zero for unused rows.
3
Check any overpayment separately before deciding on a refund or credit.
Why it helps
Avoid chasing the original total after a partial payment.
Distinguish an open balance from an overpayment.
Keep the reconciliation independent of reminder wording.
Next step
From free tool to live invoice workflow.
Use the result when creating your invoice in InvoiceAgent. Planner setup links carry the settings they describe into a draft. Review your dates, amounts, PDF, and reminder settings before scheduling.
Related workflows
Move from the quick answer into the rest of the invoice system.
Allocate received payments
Allocate received payments
Keep invoice IDs, bank references, and confirmation evidence together.
Apply an earlier deposit
Apply an earlier deposit
Separate advances from payments already applied to an invoice.
Invoice templates
Invoice templates
Use the result inside invoice formats that are ready for clients and easier to automate.
Knowledge base
Knowledge base
Review the billing concepts behind the numbers before they go onto a live invoice.
Profession pages
Profession pages
See how freelancers, consultants, and agencies apply the same calculator output in different workflows.