Commission Chargeback Calculator

When a tenant defaults or terminates early, the LL often gets to chargeback part of the leasing commission paid to brokers. This calculator sizes the chargeback.

Total commission paid

Original lease term (months)

Months actually occupied

Commission chargeback

$52,500

Commission earned (prorated)

$22,500

Unearned months

How the math works

Chargeback = commission × (unearned months ÷ original term). Simple prorated formula.

Broker agreement must include this language in writing. Common practice: commission earned in full on lease execution, with chargeback if tenant defaults within first 12-24 months.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.

Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.

Learn more about our review process on the EveryCalc methodology page.

How this calculator works

What this page estimates

This Commission Chargeback Calculator is built to give a quick, browser-based estimate for commission chargeback. When a tenant defaults or terminates early, the LL often gets to chargeback part of the leasing commission paid to brokers. This calculator sizes the chargeback. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.

Calculation approach

The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.

Example workflow

For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.

Practical checks

Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
Run a low, base, and high case when the inputs are estimates.
Check the related calculators below when the next decision depends on a different assumption.

How to interpret the commission chargeback result

Best use

Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.

Cross-check

Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.

Watch for

Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.

This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.

Before relying on this commission chargeback estimate

Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.

Confirm source numbers

Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.

Separate cash flow from total cost

A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.

Run conservative cases

Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.

Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.

How to Use

Enter total commission paid.
Enter original lease term (months).
Enter months actually occupied.
Read commission chargeback.

Frequently Asked Questions

When does chargeback apply?

Tenant defaults before full term. Commission is usually earned on full lease value; early exit = partial refund. Agreement terms vary.

Is it enforceable?

Yes if written in broker agreement. Include specific chargeback formula — prorate by month, days, or custom schedule. Without written clause, chargeback is nearly impossible to collect.

What if broker refuses?

File breach of contract claim; most settle. Courts enforce chargeback clauses routinely. Key is having the written agreement before paying commission.

What does competitive benchmarking look like?

Pull 3-5 comparable properties or units in your submarket from CoStar, Yardi, CIM, or your local broker. Normalize by unit type, class, and age. Your outputs should fall within one standard deviation of the comp-set mean. Outliers are either opportunities or warning signs — dig into why. Monthly benchmarking keeps your portfolio on-market and pricing sharp.