What is Step-Up in Basis?

Step-up in basis is a tax term that refers to the readjustment of the value (or "basis") of an asset, typically inherited, for tax purposes upon the death of its owner. The "basis" in this context is the original value of an asset for tax purposes, generally the purchase price. A step-up in basis means that when a person inherits an asset, its value is reset to its fair market value (FMV) at the time of the previous owner's death, rather than being based on what the original owner paid for it.

How Step-Up in Basis Works

The concept of basis is crucial in determining the amount of capital gains tax an individual may owe when they sell an asset. The capital gain (or loss) is calculated as the difference between the sale price of the asset and its basis. If an asset appreciates in value over time, the original owner would have to pay capital gains tax on the increase in value from the time of purchase to the time of sale.

However, under the step-up in basis rule, when an heir inherits an asset, the basis is "stepped up" to its current FMV. This can significantly reduce or even eliminate the capital gains tax liability for the heir, because the asset's appreciation during the original owner's lifetime is not taxed upon inheritance. Instead, the heir would only owe tax on any gains from the new FMV when they sell the asset.

Example

Imagine an individual purchased a home for $100,000, and by the time of their death, the home had appreciated to a value of $500,000. If the property is inherited, the heir’s basis for tax purposes is adjusted to the FMV of $500,000. If the heir later sells the property for $550,000, they would only owe capital gains tax on the $50,000 increase in value that occurred after they inherited the asset. The appreciation during the original owner's life (from $100,000 to $500,000) is not taxed.

Assets Eligible for Step-Up in Basis

Assets eligible for step-up in basis typically include:

• Real Estate: Properties, including personal residences, investment properties, and land, are eligible for step-up in basis.
• Stocks and Bonds: Financial securities held in a taxable investment account are eligible for step-up in basis.
• Personal Property: In some cases, personal property such as art, jewelry, or valuable collectibles may also be eligible.
• Business Interests: Ownership stakes in private businesses may receive a step-up in basis, depending on the structure of the business.

However, not all assets receive a step-up in basis. For example, tax-deferred retirement accounts such as 401(k)s or traditional IRAs do not receive a step-up in basis upon inheritance. Distributions from these accounts are taxed as ordinary income to the beneficiary, not as capital gains.

Double Step-Up in Basis for Married Couples

A notable variation of this rule is the "double step-up in basis," which can apply to married couples in community property states. In such states, when one spouse dies, both the deceased spouse’s and the surviving spouse’s shares of jointly owned assets receive a step-up in basis to their FMV at the time of death. This means the surviving spouse’s share of the asset, which they already owned, is also adjusted to the new FMV. This can be an important tax-saving strategy for surviving spouses, as it significantly reduces their potential capital gains liability when they later sell the asset.

In states that follow common law property rules (as opposed to community property rules), only the deceased spouse’s share of the asset receives a step-up in basis.

The Tax Implications of Step-Up in Basis

The primary tax implication of the step-up in basis rule is the reduction or elimination of capital gains tax liability on inherited assets. By resetting the asset's basis to its FMV at the time of the original owner's death, the appreciation in value during the original owner's lifetime effectively goes untaxed. This is a significant benefit for heirs.

However, there are still tax considerations for heirs:

1. Estate Taxes: Although the step-up in basis reduces capital gains tax, estate taxes may still apply to the value of the estate if it exceeds the federal estate tax exemption. As of 2023, the estate tax exemption is $12.92 million per individual, meaning estates valued below this threshold are not subject to federal estate taxes.
2. State Taxes: Some states also impose their own estate or inheritance taxes, which may have lower exemption thresholds than the federal level. Heirs should be aware of these potential obligations.
3. Future Capital Gains: Once the heir inherits the asset with its stepped-up basis, any future appreciation in the asset's value will be subject to capital gains tax when the heir sells the asset. The step-up in basis only applies once, at the time of inheritance.

Arguments for and Against the Step-Up in Basis Rule

In Favor

Proponents of the step-up in basis argue that it prevents heirs from being taxed on "phantom gains" — appreciation in value that occurred during the original owner's life, which the heir did not personally benefit from. They also point out that eliminating the step-up in basis could create liquidity problems for heirs. For example, if someone inherits a valuable piece of property, they may not have the cash on hand to pay a large capital gains tax bill, potentially forcing them to sell the asset to cover the tax liability.

In addition, the step-up in basis rule is viewed as a way to preserve family wealth across generations, enabling heirs to retain assets like family homes or businesses without being burdened by large tax liabilities.

Against

Critics of the step-up in basis rule argue that it allows for significant amounts of wealth to go untaxed, particularly benefiting wealthy families who pass on large estates. They suggest that the rule creates an imbalance in the tax system, where income from work is taxed at higher rates than capital gains that can go untaxed through inheritance. Some argue that the step-up in basis encourages the concentration of wealth across generations and undermines efforts to reduce income inequality.

Legislative Changes and Proposals

Over the years, there have been various legislative proposals to eliminate or modify the step-up in basis rule. For example, some lawmakers have proposed taxing unrealized capital gains at death, meaning that heirs would owe capital gains taxes on the appreciation in value even if they did not sell the inherited assets. These proposals often arise in discussions about tax reform and efforts to increase tax revenue from high-net-worth individuals.

However, eliminating or modifying the step-up in basis is politically contentious, as it affects many middle-class families as well as wealthy individuals. Legislative changes have been proposed but have yet to pass, and any changes to the step-up in basis rule would likely have significant implications for estate planning strategies.

Step-Up in Basis and Estate Planning

The step-up in basis rule plays a central role in estate planning, particularly for individuals with significant appreciated assets. Many estate planning strategies are designed to maximize the benefit of the step-up in basis to reduce tax liabilities for heirs.

Common strategies include:

• Holding Appreciated Assets Until Death: By holding onto appreciated assets, rather than selling them during their lifetime, individuals can ensure their heirs receive the benefit of a stepped-up basis. Selling the assets before death would trigger capital gains taxes on the appreciation.
• Transferring Assets Through a Will or Trust: Structuring the transfer of assets through a will or trust can ensure that heirs receive the benefit of the step-up in basis.
• Gifting Strategies: While gifts of appreciated assets do not receive a step-up in basis, gifting strategies can still be an important part of estate planning, especially for individuals looking to reduce the value of their estate for estate tax purposes.

The Bottom Line

The step-up in basis is a powerful tax rule that can provide significant savings for heirs by resetting the value of inherited assets to their fair market value at the time of the original owner's death. It allows for a reduction or elimination of capital gains tax liability on inherited assets, which can make a substantial difference in preserving family wealth. However, it is important to consider the broader implications, as the rule is subject to potential legislative changes and affects overall estate planning strategies. While it offers clear tax benefits, it also raises debates about fairness and tax policy, particularly when it comes to addressing wealth inequality.