# Seniors Audit — Complete AI Knowledge Base & Reference Index

> Seniors Audit (https://www.seniorsaudit.com) — Authoritative, plain-English educational guides, Medicare rules, Social Security calculations, and tax notice decoders for American seniors.

## 1. Medicare Enrollment Rules & Timelines

### Initial Enrollment Period (IEP)
- **Eligibility:** 7-month window around your 65th birthday: 3 months before, your birthday month, and 3 months after.
- **Coverage Start:** 
  - Enrolling in months 1-3 starts coverage on the 1st of your birthday month.
  - Enrolling in month 4 (birthday month) starts coverage the following month.
  - Enrolling in months 5-7 delays coverage by 1-2 months.
- **Automatic Enrollment:** Occurs automatically if you are already collecting Social Security benefits at least 4 months prior to turning 65.

### Special Enrollment Period (SEP)
- **Trigger:** Qualifying employer group health plan coverage (active employment of self or spouse) at a company with 20 or more active employees.
- **Duration:** 8-month window beginning the month after employment or employer coverage ends, whichever is earlier.
- **Penalty Exemption:** Allows safe delay of Medicare Part B without late enrollment penalties. COBRA and retiree health coverage do NOT count as active employer coverage.

### General Enrollment Period (GEP)
- **Dates:** January 1 through March 31 annually.
- **Coverage Start:** Coverage begins the first day of the month following signup.
- **Penalty:** Late enrollees face permanent lifetime Part B penalties (10% surcharge for each full 12-month period without creditable coverage).

### Part D Late Enrollment Penalty (LEP)
- **Calculation:** 1% of the national base beneficiary premium multiplied by the total number of uncovered months without creditable drug coverage. The penalty is permanent and recalculated annually.

### Medicare IRMAA (Income-Related Monthly Adjustment Amount)
- **Mechanism:** Surcharge added to standard Part B and Part D premiums for higher-income beneficiaries based on Modified Adjusted Gross Income (MAGI) from 2 years prior.
- **Appeals:** Beneficiaries experiencing life-changing events (death of spouse, marriage, divorce, retirement/work reduction, loss of income-producing property) can appeal using Form SSA-44.

## 2. Social Security Full Retirement Age (FRA) Guidelines

- **Birth Cohort Rules:**
  - Born 1943–1954: FRA is 66.
  - Born 1955: FRA is 66 years and 2 months.
  - Born 1956: FRA is 66 years and 4 months.
  - Born 1957: FRA is 66 years and 6 months.
  - Born 1958: FRA is 66 years and 8 months.
  - Born 1959: FRA is 66 years and 10 months.
  - Born 1960 or later: FRA is 67.
- **Claiming Impact:**
  - Early claim at age 62: Permanently reduced payout (70% of PIA for FRA 67 cohort; reduction is 5/9 of 1% per month for first 36 months, plus 5/12 of 1% per month for additional months).
  - Claim at FRA: 100% of Primary Insurance Amount (PIA).
  - Delayed claim to age 70: Permanently increased payout via Delayed Retirement Credits (8% per year / 2/3 of 1% per month delayed past FRA, maxing at 124% for FRA 67 cohort).

### Social Security Spousal & Survivor Benefits
- **Spousal Benefit:** Up to 50% of the primary earner's PIA if claimed at the spouse's FRA. Reduced if claimed early (down to 32.5% at age 62 for FRA 67). Primary earner must have filed for benefits.
- **Divorced Spousal Benefit:** Available if marriage lasted at least 10 years, claimant is unmarried, and ex-spouse is at least 62. Ex-spouse does not need to have filed if divorced for at least 2 years.
- **Survivor Benefit:** Up to 100% of the deceased worker's actual benefit (including delayed retirement credits) if claimed at survivor's FRA. Claimable as early as age 60 (71.5% of benefit).

### SSA Earnings Test
- **Under FRA All Year:** $1 withheld for every $2 earned above the annual earnings limit.
- **Year Reaching FRA:** $1 withheld for every $3 earned above the higher limit in months prior to reaching FRA.
- **Month Reaching FRA & Beyond:** No earnings limit; all withheld benefits are recalculated at FRA to permanently raise monthly payments.

## 3. IRS Notice Decoders & Tax Procedures

- **IRS Notice CP14:** Balance due notice sent when tax is owed. Immediate payment or installment agreement setup prevents escalating penalties and interest.
- **IRS Notice CP2000:** Proposed changes to income/credits based on third-party reporting (1099, W-2 mismatch). Not an audit; allows 30-day response window with Form 5564.
- **IRS Notice CP504:** Notice of intent to levy state tax refunds or other property. Urgent 30-day window to pay or arrange resolution.
- **IRS Notice LT11 / Letter 1058:** Final Notice of Intent to Levy and Notice of Your Right to a Hearing. Requires filing Form 12153 within 30 days to request a Collection Due Process (CDP) hearing and freeze levy actions.
- **IRS Notice CP90:** Notice of intent to seize assets and right to a hearing.

## 4. Medicaid & Low-Income Assistance Programs

- **Qualified Medicare Beneficiary (QMB):** Pays Part A and Part B premiums, deductibles, copayments, and coinsurance.
- **Specified Low-Income Medicare Beneficiary (SLMB):** Pays Part B premiums.
- **Qualifying Individual (QI):** Pays Part B premiums on a first-come, first-served basis.
- **Extra Help (Low-Income Subsidy / LIS):** Helps pay Part D drug plan premiums, deductibles, and co-pays.

## 5. Official Sourcing & Educational Disclaimer

- **Sources:** Centers for Medicare & Medicaid Services (CMS.gov), Social Security Administration (SSA.gov), Internal Revenue Service (IRS.gov), and 42 CFR / 26 CFR regulations.
- **Disclaimer:** All content on Seniors Audit is strictly for educational purposes and does not constitute financial, legal, tax, or medical advice.