Disclaimer

Educational estimates, not financial advice

Every calculator, number, and worked example on Marcus Runs the Math is an educational estimate based on the inputs you provide and the assumptions stated on each calculator page. Nothing on this site is personalized financial, investment, tax, or legal advice, and nothing here should be treated as a substitute for advice from a licensed professional who knows your full situation.

No guaranteed results

Where a calculator uses an assumed rate of return (for example, 7% average annual return for investing calculators), that rate is a common historical assumption, not a guarantee. Markets go up and down, and actual results will differ from any projection shown here.

Tax and benefit figures

Figures like 2026 federal tax brackets, the standard deduction, Social Security wage base, and 401(k) contribution limits are sourced from the IRS and Social Security Administration at the time each calculator was built and are cited on that page. Tax law and limits can change; always confirm current figures with the IRS, SSA, or a tax professional before making decisions.

Marcus is not a licensed advisor

Marcus is the on-camera host and brand face of this project. He is not a licensed financial advisor, CPA, tax preparer, or attorney, and nothing on this site claims otherwise.

Use at your own discretion

You are responsible for how you use the numbers this site produces. LDGMK Capital LLC is not liable for financial decisions made based on these calculators.