Should a Terminally Ill Friend Sell Her Rental Property to Avoid Capital Gains Taxes?

MarketWatch•Published: Sep 26, 2026 05:00 AM IST

A reader is seeking financial guidance for a terminally ill friend who owns a rental condo currently occupied by her son, who intends to move out soon. The primary dilemma involves weighing the immediate tax burden of a $100,000 capital gains bill against the potential benefits of holding the asset until death to utilize a step-up in cost basis.

Capital Gains: Selling the property while the owner is alive would trigger significant tax liabilities, potentially reaching $100,000 depending on the original purchase price and appreciation.
Step-up Basis: Inheriting the property after the owner's death allows the heirs to receive a 'stepped-up' cost basis, which effectively eliminates capital gains tax on the appreciation accrued during the owner's lifetime.
Occupancy Status: The son's plan to vacate the condo removes the primary reason for keeping the property as a family residence, forcing a decision on whether to sell, rent to others, or hold as an estate asset.

The Context & Background

This situation highlights the complex intersection of estate planning and tax law for individuals facing terminal illness. Proper financial planning is essential to ensure that assets are passed to heirs in the most tax-efficient manner possible.

Why it matters:Understanding the step-up in cost basis is crucial for families managing end-of-life financial affairs. Failing to account for these tax rules can result in unnecessary, massive financial losses for heirs, underscoring the importance of consulting with tax professionals before liquidating significant real estate assets.

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