Editorial policy
Published by Financial Calculator. Updated November 9, 2026.
Who publishes these tools
Financial Calculator is the publisher named on this site. A publisher byline does not mean a named accountant, financial planner or tax professional reviewed the page. We do not claim professional credentials or independent review without identifying the person and the scope of that review.
Sources and assumptions
For statutory tax and benefit figures, our standard is to use the responsible government agency or the underlying law. Rates from banks and other providers should link to that provider. A third-party feed or estimate is not an official verification. Where figures are unverified, the page should say so or withhold them.
Dates and corrections
An update date describes a page change. A source-check date describes the figures checked, within the scope stated on the page. Neither guarantees that all rules remain current. To report a problem, send the calculator URL, the input and result, and the official source through our contact page.
Planning estimates, not advice
Check assumptions and confirm results with the relevant agency or a qualified adviser before a financial decision. Our tools cannot cover every filing situation, benefit plan or local tax.