Last updated: August 21, 2026. This page explains how we research, write, and maintain the calculators and articles on AssetCalculus.
Our Goal
We build free calculators and plain-English explainers so everyday investors can work with clear numbers instead of guesswork. Every calculator states the formula and assumptions behind it directly on its page, so you can see exactly how a result was reached rather than treating it as a black box.
No Sponsored Content
We don’t accept payment to recommend a specific stock, ETF, broker, or financial product, and we don’t publish sponsored posts disguised as independent articles. If that ever changes for a specific piece of content, we’ll label it clearly.
How We Write and Check Our Content
Calculator formulas are built and tested against known examples before publishing, and each calculator’s page documents the assumptions it makes (like constant annual returns or monthly compounding) so you can judge whether it fits your situation. Articles are written to explain concepts in plain language, and we link to a calculator directly where it helps illustrate the math.
Corrections
If you spot an error in a calculator’s math or an article’s explanation, we want to know. We correct mistakes as soon as we can verify them and, for significant corrections, note the update date on the affected page.
Not Financial Advice
Our content is educational, not personalized financial, investment, tax, or legal advice. See our Disclaimer for details.
Contact Us
Questions, corrections, or feedback on our content are welcome at contact@assetcalculus.com.
Primary Sources
For financial definitions, tax treatment, fees, inflation, and investor-protection topics, we prioritize primary and authoritative sources. These may include the U.S. Securities and Exchange Commission, Investor.gov, the Internal Revenue Service, the Bureau of Labor Statistics, fund prospectuses, and issuer filings. Sources are linked on the relevant page when they materially support a formula, factual claim, or limitation.
Calculator Testing Standard
Before publication and after material revisions, calculator inputs and formulas are reviewed using representative normal, zero, decimal, and boundary values. We also check for invalid-output conditions such as NaN, Infinity, division by zero, and misleading rounding. A calculator result remains an educational estimate and does not replace broker, tax, or professional records.
Updates and Material Changes
Pages are reviewed when formulas, source guidance, or material assumptions change. Substantive corrections are made promptly after verification. Readers may submit a correction through our Contact page.
Policy last reviewed: August 21, 2026.