Editorial Policy

How calculators are built

Every calculator is individually coded — we do not embed third-party widgets. Each one starts from the standard published formula (e.g., the amortized loan payment formula, IRS tax brackets, FICA rates) and is implemented as a pure deterministic function.

Accuracy standards

All inputs are range-clamped so impossible values (negative balances, 1,000% rates) cannot produce misleading output. Each calculator page documents its formula, a worked example with real numbers, its assumptions, and its limitations — what the model simplifies or leaves out is stated, not hidden.

Update cadence

Figures tied to law or published data — federal tax brackets, standard deductions, FICA wage caps, contribution limits, state tax rates — are reviewed at least annually and after major legislative changes.

Corrections

If you find an error, email us via the contact page with the calculator name, your inputs, and the result you expected. Confirmed calculation errors are prioritized over all other work.

Advertising independence

KalkWise plans to fund the site with display advertising (Google AdSense); it is not yet approved and earns no advertising revenue today. Advertisers have no influence over calculator logic, results, rankings, or editorial content. We do not accept sponsored results, paid placements in calculators, or compensation to recommend products.

What we do not do

We do not provide personalized advice, sell financial products, collect your inputs (all calculations run locally in your browser), or keep pages that do not add something useful of their own. In October 2026 we removed 295 pages that did not meet that bar, most of them state template pages. Pages are researched and drafted with the help of AI tools. Every proposed change to a page runs through automated build tests and a separate automated review before it can be merged, and a new or changed figure that comes from a law or an agency must come with a quoted official source.