Editorial Standards

MyTaxCalcs exists to make tax math transparent, so the trustworthiness of what we publish matters as much as the calculators themselves. These are the standards every calculator, reference page, and blog post on this site is held to. They explain who is responsible for our content, how we decide what a number should be, and what we do when something needs fixing.

Who Creates and Reviews Our Content

MyTaxCalcs is built and maintained by its founder, De Van Do, whose background is in technology rather than tax law. We are transparent about that: this site is not a CPA firm and does not employ licensed tax professionals. What we do instead is build every calculator directly from published IRS formulas, Revenue Procedures, and official state tax tables, and cite those sources on the page — so the accuracy of a result rests on documented government math you can check, not on a claim of professional authority.

Accuracy and Sourcing

We hold our figures to a few firm rules:

• Primary sources only. Tax figures come from the IRS, the Social Security Administration, or a state’s Department of Revenue — never from another calculator or an unverified summary.
• Cite on the page. Where practical, we name the specific publication or Revenue Procedure behind a number and link to it, so you can confirm it at the source.
• No black-box math. Our formulas follow standard, publicly documented methods. If you want to reproduce a result by hand using the relevant IRS instructions, you can.
• Clear labeling. Projected figures are marked as projected until the official numbers are released, and each page is tied to a specific tax year.

The full detail of the formulas and data sources behind each tool lives on our methodology page.

Review and Update Cycle

Tax rules change every year, and sometimes mid-year. We refresh calculators and reference pages each fall when the IRS publishes new inflation-adjusted figures, and again whenever legislation changes the rules before the normal cycle. Updated pages carry a “Last updated” date so you can judge how current the information is. Older tax-year pages are kept available and cross-linked rather than deleted, so a figure that was correct for a past year stays accessible for anyone filing or amending a return for that year.

Corrections

We take accuracy seriously, and we would rather hear about a mistake than leave it live. If you spot a figure or calculation you believe is wrong, tell us through our contact page. We review reported issues, verify against the primary source, and correct confirmed errors promptly — updating the “Last updated” date when we do. Corrections to the underlying data or formulas are treated as a priority over any other change.

Independence and How We Fund the Site

MyTaxCalcs is free to use and supported by advertising. We display ads through Google AdSense to cover the cost of building and maintaining the calculators. Advertising never influences our tax figures, our formulas, or which tools and sources we recommend — there are no sponsored rankings, and no advertiser can pay to change a result or a recommendation. MyTaxCalcs is part of a small family of independently built financial calculator sites (covering insurance, loans, mortgages, and everyday percentage math) and is not affiliated with any financial institution, insurance company, or tax preparation service. You can see the full network on our About page.

Clarity and Plain Language

A correct number is only useful if you understand it. We prioritize plain language over jargon, show the steps behind a result rather than just the total, and explain the difference between concepts that are easy to confuse — like marginal versus effective rates, or gross versus taxable income. When we use a technical term, we try to define it in context.

Estimates, Not Advice

Everything on MyTaxCalcs is educational and for estimation only. Our tools do not file returns and do not replace personalized guidance from a qualified professional. Every taxpayer’s situation is different, and the right answer for you may depend on factors a general calculator cannot see.

Last updated: July 2026 · Maintained by De Van Do, Founder