Author
Every calculator and guide on compoundcoast is written and maintained under a real name, with a verifiable external profile.
Byline pending finalization
The operating author's real name and external profile are being finalized before launch and will replace this placeholder. The site stays noindex until that identity is set in site.json.
Background
compoundcoast is written by a long-term index investor who has spent years working through the same accumulation, financial-independence, and drawdown questions the calculators answer. The focus is practitioner-level: reading primary sources — IRS revenue procedures, SSA tables, the Shiller and French Data Library return series — and turning them into tools that show their work rather than hiding it.
Areas of focus
- Index investing and total-return backtesting across historical start dates.
- US investment taxation: qualified vs ordinary dividends, long-term gains, the net investment income tax.
- Financial-independence math — Coast, Barista, lean/fat — and the healthcare bridge before Medicare.
- Retirement drawdown: safe withdrawal rates, sequence-of-returns risk, and Roth conversion ladders.
How the math is checked
Correctness does not rest on authority. Every calculator ships with a regression test that checks its output against hand-computed values or a published standard, and every formula is printed on the result page so a reader can follow the derivation. The retirement-drawdown tool, where the stakes are highest, additionally carries a credentialed reviewer. The full standard is on the methodology page.
Corrections
Found an error or a stale figure? The correction policy and contact address are on the contact page. Corrections are made promptly and, when material, noted with a date.
See also
- About
What the site is and how it is funded.
- Reviewed by
The credentialed reviewer for the drawdown tool.