Fact-Checking

Verification approach

Fact-checking focuses on whether formulas, units, examples, explanations, and statements are supported by reliable sources or transparent, independently reproducible calculation logic. Important calculators identify their assumptions and limitations clearly rather than presenting a single number as if it were unconditionally precise.

Source hierarchy

• Primary sources first: official government publications, standards bodies, regulatory rate schedules, and peer-reviewed or widely accepted technical references.
• Secondary sources used to cross-check interpretation, not as the sole basis for a formula.
• Where authoritative figures change periodically (tax brackets, contribution limits, published rates), the specific reference year or "commonly cited" framing is noted so readers know to verify currentness.

Review priorities

• Formula correctness and dimensional consistency.
• Unit conversion accuracy and rounding behavior.
• Currentness of tax, finance, health, legal, or regulatory assumptions.
• Clear distinction between estimates, screening tools, and professional determinations.
• References to authoritative sources where practical.

Issue handling

If a possible error is reported, we review reproducibility, source quality, affected pages, user impact, and urgency. Confirmed issues are corrected with the smallest reliable change, and we prioritize corrections that affect financial, health, legal, or safety-related outputs.