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Corrections

Corrections

How we handle errors and a transparent log of material corrections to the Coast FIRE Calculator and its content.
Jul 24, 2026

How We Handle Corrections

Accuracy matters more than looking infallible. When we find — or you report — a material error in a calculation, formula, or article, we fix it promptly and record it here so the change is transparent.

To report an error, email info@coastfirecalc.net with the page, the figure or statement in question, and what you believe is correct. Corrections to the calculator's math are prioritized.

What Counts as a Material Correction

  • A formula or calculation that produced an incorrect result.
  • A factual claim in an article that was wrong or misleading.
  • A number in an article that did not match the calculator's output.

Minor copy edits, typos, and formatting changes are not logged.

Correction Log

2026-07-24 — Barista FIRE model corrected

Our earlier Barista FIRE tool reduced the retirement target by permanently subtracting part-time income (target = (spending − income) × 25). That is only valid when the income lasts through retirement. For a temporary barista job, the portfolio must still reach the full retirement target. We replaced the model with two clearly separated cases — permanent income and temporary bridge — so temporary earnings are never over-counted. See the Methodology page.

2026-07-24 — Article figures aligned to the calculator

We standardized the worked examples in several articles so the headline Coast FIRE figure (age 30, $40,000/yr spending, 7% nominal, 3% inflation, 4% withdrawal) consistently reads $263,555, matching the live calculator's non-rounded computation.


Nothing to report before this date. This log begins with our 2026 accuracy review.