Sources Registry

Government sources

Five agencies and office groups supply the bulk of SalaryLabs data. Each is reviewed on the cadence noted below.

Internal Revenue Service

Federal income tax brackets, standard deductions, withholding references, and selected contribution limits.

Last reviewed: 2026

Canonical ID: https://salarylabs.site/sources/#irs

Bureau of Labor Statistics

Occupational wage estimates, wage percentiles, and inflation adjustments (CPI-U).

Last reviewed: 2026

Canonical ID: https://salarylabs.site/sources/#bls

Social Security Administration

Social Security wage base limits, contribution rates, and benefit calculations.

Last reviewed: 2026

Canonical ID: https://salarylabs.site/sources/#ssa

Department of Labor

Federal overtime rules and minimum wage standards.

Last reviewed: 2026

Canonical ID: https://salarylabs.site/sources/#dol

State Revenue and Tax Agencies

State income tax schedules, state-specific credits and deductions, and regional purchasing power adjustments.

Last reviewed: 2026

Canonical ID: https://salarylabs.site/sources/#states

What is a Sources Registry?

A canonical list of every primary source SalaryLabs references. Each source has a stable identifier (a @id) that other pages and future citation links can reference without drift.

The Sources Registry is not a marketing or partnership page. It is infrastructure: the place where SalaryLabs declares, in public and in machine-readable form, which organizations supply the numbers behind its calculators and research.

How sources are reviewed

Federal tax and FICA figures are reviewed annually when the IRS and SSA publish new tax-year guidance. Bureau of Labor Statistics releases are reviewed when the OEWS or CPI-U programs publish new data. State tax schedules are reviewed annually and updated when a state enacts significant rate changes.

Each review is logged on the relevant tool or guide page. The Methodology page documents the formulas; the Editorial policy documents sourcing standards.