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Methodology & Editorial Standards

This page explains how SalaryBrain calculates results and how we maintain content quality. We publish this so readers can understand what our tools include, what they do not include, and how to interpret outputs.

1. Calculator methodology

Each calculator is based on deterministic formulas in code. For salary tools, we combine gross income with tax brackets, payroll contributions, and selected deductions configured for each country or region. For planning tools (mortgage, savings, debt payoff), we use standard time-value-of-money and amortization formulas.

2. Data sources

We prioritize official and publicly documented references: government tax authorities, statistical agencies, and reputable data providers for cost-of-living indicators. Where third-party benchmarks are used, sources are disclosed on relevant pages.

3. What estimates include

  • Published tax brackets and rates encoded in our tax data.
  • Core payroll deductions (when applicable by jurisdiction).
  • User-provided inputs such as bonuses and pension contribution rates.
  • Cost-of-living context on pages that include regional comfort scores.

4. What estimates may not include

  • Every local tax, levy, surcharge, credit, or exemption.
  • Household-specific details such as dependents or complex filing scenarios.
  • Frequent policy changes before they are encoded in a site update.
  • Individual contractual items (equity, benefits, bonuses with special treatment).

5. Review and update process

We periodically review calculator logic and region content. When tax rules or major assumptions change, we update affected pages and formulas. Region pages include a visible review date when practical to help readers judge freshness.

6. Editorial independence

Ads and affiliate links are clearly labeled and do not determine calculator outcomes. Monetization components are separated from formula logic and from the factual basis of explanatory content.

7. Feedback

If you identify an error or outdated assumption, please report it and include the page URL, jurisdiction, and source reference. We use reader feedback to prioritize fixes.

Last reviewed: April 12, 2026.