Social Security Benefit Estimator (Simplified) implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t7-111

Effect

Computation or source lookup only

Input and validation requirements

The specification does not provide a year for the bend points or claiming-age factors, so the estimator cannot produce a uniquely reproducible numeric result without additional table inputs. It also must reject claiming ages outside 62–70 and explicitly disambiguate monthly AIME from annual earnings; otherwise it can return undefined or materially incorrect benefits.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "AIME_usd_per_month": 1226,
    "claiming_age_years": 67,
    "full_retirement_age_years": 67,
    "benefit_year": 2025
  },
  "expected_outputs": {
    "PIA_before_claiming_adjustment_usd_per_month": 1103.4,
    "claiming_adjustment_factor": 1,
    "estimated_monthly_benefit_usd": 1103.4
  },
  "reference_data": {
    "bend_point_1_usd_per_month": 1226,
    "bend_point_2_usd_per_month": 7391,
    "first_segment_rate": 0.9,
    "second_segment_rate": 0.32,
    "third_segment_rate": 0.15,
    "claiming_factor_at_age_67_for_FRA_67": 1,
    "source_convention": "SSA 2025 indexed PIA bend-point table and SSA statutory claiming-age adjustment schedule"
  },
  "working": "AIME is exactly the first 2025 bend point: $1,226.00. First segment = 0.90 × 1,226 = 1,103.40. No AIME remains for the second or third segments. PIA = 1,103.40 + 0.00 + 0.00 = $1,103.40. At FRA 67, factor = 1.00. Estimated benefit = 1,103.40 × 1.00 = $1,103.40 per month."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche7/tranche7-results.json