Patient Payment Plan Calculator
Lump sums go unpaid; plans get paid. Convert any patient balance into a monthly payment with a full amortization table the patient can sign.
A balance a patient cannot pay in one lump sum is not a lost balance — it is a payment plan waiting to be written down. Enter the balance, any down payment, the number of months, and an APR (many practices charge none, so the default is 0%), and this calculator produces the fixed monthly payment and the full month-by-month amortization table you can print for the patient to sign.
Build the payment plan
Running plans that actually get paid
The arithmetic is the easy part — collection is a design problem. Plans that complete share four features. A down payment, even a small one: it proves the card or account works and converts a vague promise into a started plan. Automatic payments on a card or bank account kept on file, scheduled a few days after the patient’s payday rather than on the 1st by default. A short term: plans beyond about 12 months fail at much higher rates in most practices’ experience, so for large balances consider a bigger down payment instead of a longer term. And a written agreement the patient signs — the amortization table above is the natural attachment — stating the payment date, the missed-payment process, and that new services are not added to the plan automatically. Two compliance notes: interest and late fees on patient balances are restricted in some states and by some payer contracts, which is why this calculator defaults to 0% APR; and statements must keep running alongside the plan so the patient always sees the remaining balance. Structured patient balances are a core part of the patient billing work our team runs for practices.
Frequently asked questions
Why does the last payment differ slightly from the others?
Cent-rounding. A balance divided into equal payments rarely divides evenly, so each month is rounded to the cent and the final payment absorbs the few cents of difference, ending the plan at exactly $0.00. With interest-bearing plans the same adjustment applies after the last month’s interest is calculated.
Should a practice charge interest on patient payment plans?
Many do not — this calculator defaults to 0% APR for that reason. Whether you may charge interest or late fees depends on state law and, for insured balances, sometimes on payer contract terms. Decide the policy once, document it, and apply it uniformly; do not improvise terms per patient.
What term should we offer for a large balance?
Shorter is safer: completion drops as terms stretch, and most practices cap in-house plans around 6–12 months, using a larger down payment rather than a longer term for big balances. The right cap is the one your own completion data supports — track plans by term length and see where yours stop finishing.
Disclaimer: This tool is provided for educational and planning purposes only. It is not billing, coding, legal, or financial advice, and it does not replace the rules of any specific payer. Requirements and figures change over time — always verify against current CMS guidance and your own payer contracts before acting on a result.