Restructuring Inherited Portfolio: One-Time Tax-Free Rebalancing Opportunity
The step-up in basis gives you a one-time window to rebalance, simplify, or diversify inherited investments without capital gains tax. Selling inherited concentrated positions or restructuring an overly complex portfolio happens tax-efficiently only if done while basis is stepped up.
The opportunity: Inherited investments receive a stepped-up basis, meaning the tax system resets their value to the date of death. You can sell positions that appreciated over decades without owing capital gains on the pre-death growth. This is a rare window to rebalance or simplify a portfolio with minimal tax cost.
A common situation: Your spouse managed the investments and you're not comfortable with the current allocation, or you inherited a concentrated stock position that feels risky. Both are valid reasons to restructure.
What a CPA helps with: Identifying which positions to sell (those with minimal gain above the stepped-up basis), which to hold, and how to time sales across tax years to manage your brackets. This is tax planning, not investment advice, and the two need to work together.
The tradeoff: The step-up is a one-time reset. If you wait and the investments grow further, new gains above the stepped-up value become taxable. Selling soon after inheriting is often the most tax-efficient move, but the right timing depends on your full income picture.
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This guide cites 3 primary sources. All factual claims are traceable to the sources listed below.
- IRSIRS Publication 551: Basis of Assets — Property received from a decedent — stepped-up basis rules
- IRSIRS Topic 409: Capital Gains and Losses — Calculation of gain or loss on sale of inherited assets
- IRSIRS Publication 550: Investment Income and Expenses — Reporting sales of inherited securities and basis determination