Our Editorial Process & Methodology
CalcLeap exists to help readers make better financial, health, and everyday decisions with free, accurate calculators and clear guides. This page explains how we research, write, fact-check, and maintain everything you read here.
What we publish
CalcLeap publishes two kinds of content:
- Calculators and tools — interactive utilities that run entirely in your browser. We do not collect or transmit the data you enter.
- Educational guides — long-form articles that explain the concepts behind a calculator, the math, the trade-offs, and how to act on the answer.
We do not publish opinion pieces, market predictions, "best stock to buy" lists, or anything that pretends to be personalized financial advice. Our guides describe how decisions can be reasoned about, not which decision you should make.
Our research standard
Every numeric claim in a CalcLeap guide is traced to a primary source. We prefer, in this order:
- Government data — Federal Reserve (FOMC statements, H.15 release, G.19 release), U.S. Treasury (TreasuryDirect), Internal Revenue Service, Bureau of Labor Statistics, FDIC, CFPB, SSA, CDC, NIH.
- Academic and research data — university research databases (e.g., NYU Stern's Damodaran datasets for long-run equity returns), peer-reviewed journals, OECD.
- Industry data with clear methodology — Bankrate rate surveys, NerdWallet research, S&P Dow Jones Indices methodology documents.
We do not cite forums, anonymous blogs, or social-media posts as primary sources. We do not cite AI-generated content as a source.
How calculations are built
Every calculator on CalcLeap starts with the canonical formula for the quantity being calculated — looked up in a textbook, an actuarial reference, an IRS publication, or the relevant regulator's documentation. We then:
- Implement the formula in plain JavaScript that runs in your browser.
- Test it against at least three canonical input/output pairs (for example: a mortgage calculator is checked against the official amortization schedule for a known $300,000, 30-year, 7% loan).
- Document the test cases as HTML comments in the page source so any reviewer can re-verify the math.
- Re-verify when underlying tax brackets, FICA caps, or other inputs change — typically every January for tax-year items.
If you find a math error
Email us at the address on our contact page with the calculator URL, the inputs you used, the result we returned, and the result you believe is correct. We fix verified math errors within 48 hours and document the correction in the page source.
How guides are written and reviewed
Each long-form guide goes through the following workflow:
- Topic selection. Guides are written to accompany the calculators we offer, with priority given to topics that have high search-result demand and where existing online coverage is shallow, outdated, or inaccurate.
- Source-first drafting. We assemble the primary-source citations before writing the article, then write the explanation around verified facts. We do not write first and look for citations later.
- Numeric review. Every number that appears in the article is cross-checked against the cited source on the day of publication.
- Editorial review. Each draft is reviewed for clarity, hedging language, accidental advice (we do not give personalized advice), reading-level accessibility, and broken links.
- Update schedule. Articles with time-sensitive numbers (interest rates, tax brackets, contribution limits) are reviewed quarterly; evergreen articles are reviewed at least annually. The last updated date at the top of every article is accurate.
Use of AI
We use AI tools, including Anthropic's Claude, to assist with drafting, fact-checking, and code review. Every published article is reviewed by a human editor for factual accuracy, citation integrity, and editorial voice before it is committed to the live site. AI is a productivity tool here; it does not bypass our research standard or our review workflow.
We disclose this because we believe readers deserve to know how the content they read is produced.
Corrections policy
When we discover or are told about an error, we:
- Fix the error immediately.
- Update the last modified date.
- For substantive corrections (math, factual claims), add a note at the bottom of the article describing what was changed and when.
We do not silently rewrite articles after publication except for typo fixes, broken-link repair, and routine refreshing of time-sensitive numbers.
Editorial independence
CalcLeap is supported by display advertising (Google AdSense) and, on a small number of pages, affiliate links to financial products. Where affiliate links appear, they are disclosed inline with the FTC's required language. Advertising and affiliate relationships do not influence which products we cover, which calculators we build, or which sources we cite. We do not accept payment in exchange for favorable coverage.
What we are not
CalcLeap is an educational resource. We are not a financial advisor, broker, insurance agent, attorney, tax professional, or medical provider. For decisions that depend on your individual circumstances, please consult a licensed professional in the relevant field — a fee-only fiduciary advisor for investment decisions, a CPA or enrolled agent for tax questions, your physician for medical questions, a licensed attorney for legal questions.
The primary sources we cite most often
- Federal Reserve Board — interest rates, monetary policy, consumer credit (G.19), selected interest rates (H.15)
- U.S. Treasury / TreasuryDirect — Treasury bills, notes, bonds, I Bonds, EE Bonds
- Internal Revenue Service — tax brackets, IRA/401(k) contribution limits, mileage rates
- Bureau of Labor Statistics — inflation (CPI), employment data, wages
- FDIC — deposit insurance, bank data
- Consumer Financial Protection Bureau — Truth in Lending, Truth in Savings, complaint data
- Social Security Administration — Social Security benefits, COLA
- CDC and NIH — health guidelines, BMI ranges, nutritional standards
- NYU Stern (Damodaran datasets) — long-run market returns, risk premia
- S&P Dow Jones Indices — index methodology and historical data
Contact
Questions about this process, suggested corrections, or a guide you wish we had? Reach us via the contact page. We read every message and reply to substantive ones, typically within two business days.