Payment Plan Calculator

Build a structured payment plan for an amount owed. Specify the total amount, number of installments, payment frequency, and optional interest rate. The calculator generates a full schedule with due dates and amounts, shareable via URL and downloadable as CSV.

$

Payment Summary

Amount Owed

$5,000.00

Installments

12

Frequency

Monthly

Total Due

$5,000.00

Payment Schedule

InstallmentDue DateAmountCumulative
12026-07-03$416.67$416.67
22026-08-02$416.67$833.34
32026-09-01$416.67$1,250.01
42026-10-01$416.67$1,666.68
52026-10-31$416.67$2,083.35
62026-11-30$416.67$2,500.02
72026-12-30$416.67$2,916.69
82027-01-29$416.67$3,333.36
92027-02-28$416.67$3,750.03
102027-03-30$416.67$4,166.70
112027-04-29$416.67$4,583.37
122027-05-29$416.63$5,000.00

Best Practices

Put it in writing

Always document the payment plan in a formal agreement. Use a template (like our Payment Plan Agreement) covering total amount, schedule, interest, default terms, and signatures.

Start with a down payment

Require 10–25% upfront to demonstrate commitment and reduce risk. This also covers your administrative cost of setting up the plan.

Define default terms

State clearly what happens if payments are missed (e.g., two late payments trigger immediate acceleration of the full balance). Enforce consistently.

Monitor and document

Track every payment and send reminders before each due date. Keep records of all communications for enforcement later if needed.

Questions

What is a payment plan?

A payment plan is a written agreement allowing a debtor to pay an amount owed in installments over time, rather than a lump sum. Payment plans help improve cash flow predictability and reduce the need for collection escalation.

Should I include interest in a payment plan?

Only if your original contract allows it and local law permits. Interest compensates for the time value of money and the risk of default. Always state the interest rate clearly in the payment plan agreement.

How do I choose the right frequency?

Match the frequency to your customer's cash cycle. Weekly works for high-frequency businesses; monthly suits most B2B terms; quarterly for larger amounts or slower-paying customers.

What if a customer misses a payment?

Define default terms in your payment plan agreement (e.g., two missed payments trigger acceleration of the full remaining balance). Document all missed payments and send a formal default notice before escalating.

Can I adjust a payment plan after it starts?

Yes, if both parties agree. Get written consent and issue a revised payment plan agreement. Unilateral changes can undermine enforceability.

Should I require a down payment?

A down payment (typically 10–25%) demonstrates commitment and reduces your risk. It is often effective for larger amounts or less creditworthy customers.

Related resources

Overdue Invoice Reminder Emails4-stage escalating email sequence with copy-paste templates.Demand LetterFormal payment demand letter with guidance and downloadable formats.Payment Plan AgreementInstallment agreement covering schedule, default, and signatures.Collection Call ScriptFirst call, broken-promise follow-up, and objection-handling scripts.Late Fee CalculatorCalculate accrued interest on overdue invoices with statutory rates.DSO CalculatorDays sales outstanding: measure how quickly you collect.Aging ReportTrack invoices by age buckets and generate aging templates.How to Collect Overdue InvoicesFull escalation ladder from reminders through agency referral.When to Send an Invoice to CollectionsCollections costs, recovery rates, and referral preparation.Payment Terms That Get You PaidNet 30, late fees, retention of title, and personal guarantees.
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