Families Use Tax Loophole to Erase Decades of Capital Gains on Inherited Assets

A little-known provision in the US tax code allows families to erase decades of capital gains on inherited assets, but there's a narrow window to pull it off.

The 'stepped-up basis rule' resets an asset's value to its fair market price at the time of the owner's death, effectively wiping out all accumulated gains. By transferring highly appreciated stock to an older parent and waiting until after they've passed away, families can avoid paying capital gains tax on those gains.

This strategy is particularly useful for concentrated positions in assets like Microsoft (NASDAQ:MSFT | MSFT Price Prediction), where the embedded gain on a long-held lot can be enormous. For example, consider a position in Microsoft bought in the mid-1990s and held through two 2-for-1 splits. Shares closed at $499.70 on September 4, 2026, an adjusted 1,678.73% gain since November 1999 alone.

However, there are risks associated with this strategy, including the possibility of Medicaid becoming a bigger threat if the parent later needs long-term care. If the transfer sits inside the federal five-year lookback period, shares in the parent's name can count toward the asset limit for eligibility. Additionally, state estate tax is another landmine that families should be aware of.