About MD Salary Calculator

This site exists because Maryland paychecks are hard to read. Two state level taxes, a county tax that changes at every county line, and a state form most workers have never seen all land on one pay stub. Our Maryland salary calculator puts the full math in one place, in plain sight.

The site is built and run by Ian Welkins. Ian builds free calculator sites and maintains each one by hand. He is a developer, not a tax professional, and this site says so wherever it matters. The goal is a fast, honest estimate that shows its work.

How Ian Welkins works

Ian is based in Houston, Texas. He has spent years building small, focused calculator tools and checking them against official sources. You can find his other work through his public profiles:

• GitHub
• Dev.to
• About.me
• Gravatar

Editorial standards

Every rate on this site comes from an official source: the IRS, the Social Security Administration, or the Comptroller of Maryland. Rates are never copied from another calculator site. When a source document and a news story disagree, the source document wins. Each page names its sources, and our methodology page shows every formula the calculator uses, plus the cases it does not handle.

Update policy

Tax data is checked every January when new federal figures take effect, and again after each Maryland legislative session ends. County rate changes are added as counties publish them. Every change is logged on the methodology page with a date. If you spot a figure that looks wrong, tell us through the contact page. Reader reports get checked against the source first, and confirmed errors get fixed and logged.

Start with the paycheck calculator if you came for a number. Read the methodology if you want to see exactly where that number came from.