Selling S&P 500 Fund Pushes Retiree into Higher Medicare Premiums

A 68-year-old sells his 1996 S&P 500 fund for $310,000 gain, triggering higher Medicare premiums in 2028.

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Nov 5, 2026

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Selling S&P 500 Fund Pushes Retiree into Higher Medicare Premiums

A 68-year-old sells his 1996 S&P 500 fund for $310,000 gain, triggering higher Medicare premiums in 2028.

In brief

A 68-year-old sells his 1996 S&P 500 fund for $310,000 gain, triggering higher Medicare premiums in 2028. A retiree selling an S&P 500 fund he bought in 1996 faces higher Medicare premiums in 2028 due to a $310,000 capital gain. Originally reported by 24/7 Wall St..

Selling S&P 500 Fund

A 68-year-old sells an S&P 500 index fund he bought in 1996 to move into bonds.

Capital Gains Windfall

The sale locks in a $310,000 gain that pushes him into a higher Medicare premium bracket in 2028.

Medicare Income Surcharge

Medicare Income Surcharge

IRMAA reaches about 8% of Part B enrollees, with single filers under $109,000 paying $202.90 monthly.

MAGI Impact

The gain raises his MAGI to $390,000, landing in the single bracket over $205,000 up to $500,000.

Premium Increase

Part B premiums jump to $649.20 monthly, including a $446.30 surcharge, with Part D adding $83.30.

Tax Implications

Selling in stages can backfire, with single filers above $200,000 owing a 3.8% net investment income tax.

Selling Strategy

Rebalance inside retirement accounts first, pull every tax lot, and pick the tax year on purpose.

The bottom line

A retiree selling an S&P 500 fund he bought in 1996 faces higher Medicare premiums in 2028 due to a $310,000 capital gain.

Read the original on 24/7 Wall St.

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