One named author, accountable for everything
Every guide on this site is researched and written by Luiz Torres, the software developer who also built the calculators. There is no anonymous "editorial team," no ghostwriters, and no outsourced content. If something here is wrong, there is exactly one person responsible for fixing it, and you can read more about him on the about page or on GitHub.
Numbers are computed, not copied
The worked examples in the guides are not lifted from other websites. Each one is recalculated with the same formulas that power the calculators on this site. When a guide says $3,000 at 6.5% grows to about $4,965 in eight years, that figure came out of the same code path you can test yourself on the calculator — and if the two ever disagree, that is a bug worth reporting.
Facts beyond the math come from official sources
Formulas can be verified by anyone; facts about the financial system cannot, so those are sourced from the institutions that define them. The guides link to the SEC's Investor.gov for investing fundamentals, the FDIC for deposit insurance rules and rate benchmarks, the Consumer Financial Protection Bureau for consumer protection topics, and the Bureau of Labor Statistics for inflation data. Claims that cannot be tied to a formula or an official source get cut.
How the site makes money
CalcInterest is supported by Google AdSense advertising and nothing else. There are no affiliate links, no sponsored posts, and no paid placements. No bank, broker, or fund company has ever paid to be mentioned — or could. Ads are visually separate from content and have no influence on what gets written.
The honest limits of these guides
These guides are written by a developer who is careful with arithmetic and sources — not by a licensed financial professional. They explain how compound interest works in general; they do not evaluate your personal situation, and they are not financial, investment, or tax advice. Use them to understand the mechanics, then take decisions to a qualified advisor.
Dates, updates, and corrections
The published and updated dates on each guide reflect when the content actually went live or changed — they are not staged for appearances. When an error is found, the article is corrected in place and its updated date changes. To report a mistake, use the contact page or email contact@calcinterest.com; corrections are typically reviewed within a few business days.