How our calculators and guides are built
We use explicit formulas, documented assumptions, and cross-checked references so users can understand both outputs and limitations.
Calculator methodology
- Inputs and assumptions are visible and user-editable where practical.
- Tax and withholding logic is aligned to published federal/state rules.
- Scenario outputs focus on decision support, not definitive tax filing advice.
Content methodology
- Guides are organized around concrete use-cases tied to specific calculators.
- Long-tail posts target one narrow question and link to the relevant guide and tool.
- Trust metadata includes review owner, update date, and source references.