I Inherited $150,000. In 20 Years, Smart Tax Planning Could Grow This to $580,000.

Your inheritance may lose value before you invest it. Taxes on inherited assets could reduce how much you get to keep, while careful planning may preserve more of it. The type of asset you receive and the decisions you make afterward can affect how much is available for long-term growth. Here’s how a $150,000 inheritance could grow to almost four times its original value.

Tax Missteps That Could Reduce Your Inheritance

What you inherit sets the tax rules for how much you may keep. Using the wrong cost basis, taking a large IRA withdrawal and missing a required distribution could increase your tax bill or trigger a penalty. The table breaks down three common asset types, their tax rules and potential costs.

Real estate, stocks and funds generally receive a stepped-up cost basis when inherited. This is the value used to calculate your gain or loss when you sell. For example, if you inherit stock worth $150,000 that the previous owner bought for $75,000, your basis generally resets to $150,000. Selling it for that amount typically would not create a taxable capital gain.

Traditional IRAs, by comparison, are generally funded with pretax money, so distributions are typically taxed as ordinary income. Taking a large amount in one year could push part of that withdrawal into higher tax brackets and leave you with less to invest. Most non-spouse beneficiaries must empty the account within 10 years, and required minimum distributions (RMDS) may also apply during that period.

A financial advisor can help you review inheritance tax rules and plan sales or withdrawals before investing the money.

How Much a $150,000 Inheritance Could Grow in 20 Years

If you invest the full $150,000 and earn an average annual return of 7%, your inheritance could grow to about $580,000 over 20 years without withdrawals. To calculate this, you would multiply the starting amount by 1.07 to the 20th power ($150,000 × 1.07²⁰ = $580,453).

Taxes could change that result by reducing how much you have available to invest. As an example, let’s assume you are single with $120,000 of taxable income and inherit a $150,000 traditional IRA. If you withdraw the entire account in one year, your taxable income would increase to $270,000.

The table breaks down how your income would be taxed in each federal bracket as a single filer. These calculations use the 2026 federal income tax brackets. ¹

Without the inherited IRA withdrawal, your federal income tax would be $21,398. Taking the full $150,000 in one year would add about $41,871 to that bill, leaving about $108,129 of the inheritance to invest.

At the same 7% average annual return, $108,129 could grow to approximately $418,000 over 20 years ($108,129 × 1.07²⁰ ≈ $418,000). That is roughly $162,000 less than the $580,000 projected from investing the full $150,000.

Changing Your Strategy Can Leave You More to Grow

IRA withdrawals create a tax bill before inherited funds are invested. One way to reduce that liability is to take smaller annual distributions, which could keep more of your income out of higher tax brackets. The amount you take each year may depend on your other taxable income and the room remaining before you reach the next bracket.

A financial advisor can help you determine the amount and timing of inherited IRA withdrawals with the goal of limiting taxes and leaving more of your inheritance available to invest.

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