Methodology
How we calculate
Every number on InjuryMath comes from a formula you can read and a rule you can check.
Our principles
- Rules, not guesses. Calculators apply published rules — regulations, statutes, court rules and official benefit rates. Where a result depends on something we can’t know, such as a negotiation, you enter it.
- Ranges where reality is uncertain. We avoid presenting a single precise figure when the honest answer is a range.
- Sources on the page. Each calculator and guide lists its sources and the date it was last reviewed.
- Private by design. Calculations run in your browser. We don’t receive or store the numbers you enter.
Settlement take-home calculator
The take-home calculator works through a settlement in the order money is typically paid out of an attorney’s trust account:
- Attorney fee = fee percentage × settlement (or × settlement minus costs, if your agreement says costs are repaid first).
- Case costs as entered.
- Medicare: when Medicare’s payments are less than the settlement, its recovery = payments − payments × (fees + costs) ÷ settlement. When payments equal or exceed the settlement, recovery = settlement − fees − costs. This follows 42 CFR § 411.37.
- Other liens (Medicaid, health plans, hospitals and providers) as entered, less any negotiated reduction you enter.
- Other payoffs such as a lawsuit funding balance, as entered.
- Take-home = settlement − all of the above.
Limitations: the calculator does not model state-specific lien rules, Medicaid allocation, or plan-specific ERISA terms; it treats those as amounts you enter. It does not estimate taxes.
Keeping things current
We review calculators and state tables when the underlying rules change and at least once a year. If you find something out of date, tell us at the address on our contact page.