Official Primary Data Sources & Statutory Citations

Complete directory of government statutes, Code of Federal Regulations citations, agency operating manuals, and economic data sources.

Last updated: August 2026 Verification Cycle

Official Data Verification: August 2026

Audited against Federal Reserve Holiday Calendar

Primary Authority: Social Security Administration (SSA)

Regulatory Basis: POMS GN 02401.000 & 20 CFR § 404.1807

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Primary Statutory Sources Directory

CheckPayDate.com maintains strict grounding in public government data. Below is the complete catalog of primary legal authorities, code sections, and statistical databases powering our calculators and schedules.

Social Security Administration (SSA)

Schedule of Social Security Benefit Payments (SSA Pub. No. 05-10031)

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Annual Agency Publication

The primary official reference for monthly payment dates, specifying the staggered Wednesday birth cohort schedule and SSI prior-business-day early shift rules.

SSA Program Operations Manual System (POMS) GN 02401.000

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POMS GN 02401.001 - Title II and Title XVI Payment Delivery

Internal operating instructions governing delivery day policies, holiday shifts, early direct deposit delivery procedures, and bank processing mandates.

Code of Federal Regulations: Title 20 CFR § 404.1807

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20 CFR § 404.1807 (Staggered Payment Days)

Federal statutory law mandating payment disbursement on the 2nd, 3rd, or 4th Wednesday of each month based on beneficiary day of birth.

Social Security Act: Title 42 U.S.C. § 415(i)

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42 U.S.C. 415(i) (Cost-of-Living Increases in Benefits)

Federal statute establishing automatic annual Cost-of-Living Adjustments (COLA) based on third-quarter CPI-W percentage increases.

Federal Reserve & Financial Services

Federal Reserve Board Financial Services Operating Holiday Schedule

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Title 5 U.S.C. § 6103 (Federal Holidays)

Official schedule of the 11 recognized federal holidays that govern FedACH bank settlement closures and automated rollback of benefit payments.

National Automated Clearing House Association (Nacha) Operating Rules

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Nacha Operating Guidelines

Rules governing electronic funds transfer (EFT) settlement windows and same-day ACH file processing.

Bureau of Labor Statistics & IRS

Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W)

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U.S. Bureau of Labor Statistics Series CWUR0000SA0

Monthly macroeconomic inflation data compiled by the Department of Labor, used as the legal benchmark for determining annual COLA percentage increases.

IRS Publication 915: Social Security and Equivalent Railroad Retirement Benefits

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26 U.S.C. § 86 (Taxation of Social Security Benefits)

Internal Revenue Service tax guidelines and worksheets for calculating provisional combined income and the 50% / 85% taxable benefit tiers.

Centers for Medicare & Medicaid Services (CMS) Part B Premium Notices

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CMS Annual Medicare Fact Sheets

Official determinations of standard monthly Part B premiums and Income-Related Monthly Adjustment Amount (IRMAA) brackets deducted from Social Security checks.

Source Independence Note:

All source documents cited above are public records of the United States Government. CheckPayDate.com is an independent publisher and has no official affiliation with these agencies.