Editorial Policy

Financial content affects real decisions about real money, so every page on ToolGrym follows the same editorial process. This page describes it.

Who writes the content

Every page is published and maintained by the ToolGrym editorial team. We do not invent bylines or claim professional credentials we don't hold. Accuracy is supported by a repeatable process: formulas are implemented as tested code, numerical examples are checked against those functions, and factual claims are traced to cited primary sources. Automated tools may assist that work, but the editorial team remains responsible for what is published. If a credentialed reviewer joins the team in the future, reviewed pages will name them with their verified identity.

Math is tested against reference values

Every formula on this site is implemented as a pure function covered by automated tests pinned to known reference values (for example, the standard amortization formula's output for a $300,000, 30-year loan at 6.5%). These tests run before any change is deployed; a failing test blocks the release. Numerical examples are checked against the same functions used by the calculators. These checks reduce calculation and regression risk; they do not replace source review, professional judgment, or the terms of a specific financial product. See the calculator methodology for the shared timing, rounding, uncertainty, and privacy rules behind the tools.

Sources

Factual claims cite primary, authoritative sources — the Consumer Financial Protection Bureau, the Federal Reserve, the IRS, Investor.gov, and equivalent bodies. We do not cite other calculator sites, content farms, or unattributed statistics. Each article lists its sources at the bottom.

Review schedule and corrections

Every tool page displays a "last reviewed" date, tracked per page in the site's registry. Content is re-reviewed on a rolling schedule — sooner when the underlying rules change (tax brackets, contribution limits, regulatory thresholds). If you find an error, email [email protected]; confirmed errors are corrected promptly, a regression test is added where applicable, and the review date is updated.

Independence

ToolGrym is designed to be supported by advertising. When advertising is enabled, advertisers have no influence over which tools we build, what the articles say, or what any calculator returns. We do not publish sponsored content, participate in affiliate programs for financial products, or accept payment for recommendations. If that ever changes, affected pages will say so explicitly.

What our content is not

Nothing on this site is individualized financial advice. Calculators model simplified scenarios; articles explain general mechanics. For decisions with significant consequences, consult a qualified professional — see the financial disclaimer.