Our editorial & corrections policy
Useful explanations, transparent assumptions and sources you can follow. Prepared and reviewed for this release on 3 November 2026.
Attribution and review
Content is attributed to RandMath editorial as a site label. It does not imply a named expert, professional qualification or independent human review. No earlier publication history is claimed. Publication and review dates reflect preparation in this build.
Source standards
Use primary sources for tax rules and official values. Every tax-year configuration includes its effective dates and references. Never substitute a proposed or future rate silently. An unverified tax configuration must be blocked from calculation.
Calculation checks
Keep formulas separate from display code. Tests should compare independent expected values, boundary conditions and accounting identities. A change to official rates must include tests and a review-date update.
Corrections
Investigate reports against the applicable source and reproduce the issue. Correct confirmed errors, add regression coverage and record material changes in the maintenance log. Use Contact & corrections to submit an issue for review.
Commercial independence
No partners, testimonials or rankings are invented. Any future affiliate links must carry a disclosure and sponsored link attributes. Commercial placements must remain separate from the calculator inputs and results.