Educational purpose
Every article, calculator page, formula page, example page, and help article should explain a money concept, calculation, assumption, or workflow. Content may help readers compare scenarios, but it must not tell a reader what financial decision to make.
- Explain what the calculator does and does not include.
- Use examples with clearly illustrative numbers.
- State uncertainty and limitations before readers could mistake an estimate for a promise.
- Route personal, regulated, tax, legal, mortgage, pension, insurance, or investment advice questions to qualified professionals or official sources.
Who writes and reviews content
Calcs.finance is written and maintained by one named person: David Savanyu, founder of Savi Tech Limited. There is no anonymous editorial team. Each page still goes through distinct working stages before it is published, and the calculation content is additionally checked by an automated validation suite rather than by opinion.
- Research and scoping
- Identifies the reader need, formula scope, source requirements, assumptions, and likely misunderstandings before drafting starts.
- Drafting and revision
- Plain-English copy written against that brief, then revised to remove generic language, unsupported claims, weak examples, and missing caveats.
- Automated formula validation
- Every published worked example and output is pinned by deterministic fixtures, edge-case tests, and rounding-policy tests that run before each release.
- Compliance, trust, and publishing checks
- Advice risk, official-source needs, ad/editorial separation, canonical URLs, structured data, and internal links are checked before a page ships.
- About the authorWho writes the calculators, how they are validated, and how to report corrections.
Source standards
Generic math content should explain derivation, assumptions, implementation notes, and validation instead of inventing authority. Rule-based content must use current official or primary sources when the result depends on tax rules, regulatory rules, lending disclosures, retirement tables, or jurisdiction-specific thresholds.
- Use official sources for rule-based claims, such as IRS, GOV.UK, HMRC, FCA, CFPB, Bank of England, Federal Reserve, Federal Student Aid, tax authorities, or relevant regulators.
- Record comparator checks internally only; public content should describe them generically as independent comparator checks when the validation context is useful.
- Do not publish fake statistics, fake citations, fake quotes, unsupported superlatives, or date-sensitive claims that have not been checked.
- Do not name or link third-party calculator comparators in public source labels, formula notes, help pages, guide pages, or rewrite briefs.
- MethodologySee the source hierarchy, formula lifecycle, validation evidence, and correction workflow.
Originality and automation limits
Automation can help draft, audit, test, and maintain content queues, but production pages should be reviewed as original editorial work. Generated placeholder copy is not treated as final high-quality finance content until a reviewer has checked accuracy, originality, source needs, limitations, and internal links.
- Do not copy competitor explanations, calculator wording, examples, or source lists.
- Do not publish generated copy that has not been checked against the actual calculator inputs and formula.
- Content review rows should record scores, accuracy issues, originality issues, source needs, and rewrite acceptance criteria.
- A page may remain indexable only when it can justify unique user value and clear trust signals.
- Guide rewrite exampleShows how a guide can be aligned with the actual calculator and formula scope.
- Formula rewrite exampleShows original formula notes, variable definitions, limitations, and validation context.
Corrections and review triggers
Content should be corrected when a formula changes, a test exposes a mismatch, a source or rule changes, a user reports a reproducible issue, or a page makes a claim that is too broad for its evidence. Corrections should update the affected page, related formula notes, examples, internal links, and the content review queue where relevant.
- Reports should include the calculator or URL, entered numbers, result shown, expected result, and why the current explanation seems wrong.
- Rule-based pages need source-date checks when the relevant official rule changes.
- Calculator pages and guides need alignment checks when input fields are added, removed, or renamed.
- Material corrections should leave enough review evidence for future editors to understand what changed.
- Report an issueSend details that help reproduce a formula, source, or content problem.
Independence from advertising
Advertisements support free access, but they do not determine calculator formulas, assumptions, examples, editorial conclusions, content scores, internal links, or page rankings. Ads are not endorsements, recommendations, eligibility signals, or product suitability checks.
- Advertisers do not receive editorial control over calculator formulas or educational content.
- Ad placement must not obscure estimate limitations, disclaimers, or methodology links.
- External commercial links must not be framed as advice or endorsement.
Sensitive data firewall
Editorial, analytics, and advertising workflows must not use calculator inputs, outputs, saved scenarios, scenario names, notes, debts, income, balances, favourites, calculator usage details, account state, or local scenario data for ad targeting, remarketing, lookalike audiences, or custom ad segments.
- Privacy policyExplains the advertising data firewall and how calculator data is treated.
- Cookie policyExplains cookies, local storage, analytics, advertising, and consent choices.
- DisclaimerExplains why educational content and calculator results are not personalised advice.