# AI Stock Gains Boost Social Security Taxes

> A 64-year-old's $200,000 AI stock profit won't reduce Social Security checks but could make 85% of benefits taxable.
- Title: AI Stock Gains Boost Social Security Taxes · 24/7 Wall St.
- Summary: A 64-year-old's $200,000 AI stock profit won't reduce Social Security checks but could make 85% of benefits taxable. A single stock sale of $200,000 gains in…
- Keywords: ai stock gains, social security, taxable benefits, retirement income, s&p 500, ira, earnings test, provisional income, Stock, Gains, Boost, Social
- Source: 24/7 Wall St. — https://247wallst.com/personal-finance/social-security/2026/10/19/the-ai-bull-market-has-gained-117-in-four-years-and-his-200000-stock-profit-wont-cut-social-security-but-could-make-85-of-his-benefits-taxable
- Author: Gerelyn Terzo
- Published: 2026-10-19T18:00:15+00:00
- Read time: 1 min
- Topics: ai stock gains, social security, taxable benefits, retirement income, s&p 500, ira, earnings test, provisional income
## AI Bull Market Gains
The S&P 500 gained 117% over four years ending October 2026.
## Retiree's Stock Sale
A 64-year-old sells $200,000 in stocks from a taxable account.
## Social Security Checks Unaffected
His Social Security checks remain full despite the stock gain.
## Taxable Benefits Increase
85% of his Social Security benefits become taxable after the sale.
## Earnings Test Details
Social Security withholds $1 for every $2 earned above $24,480 in 2026.
## Combined Income Calculation
Combined income exceeds $34,000, triggering 85% of benefits as taxable.
## Tax Impact
The stock sale creates $16,900 extra taxable income from Social Security benefits.
## Key takeaway

A single stock sale of $200,000 gains in retirement increases taxable Social Security benefits by $16,900 without affecting checks.