Estate And Gift Tax Guide

Estate and gift taxes represent one of the most complex areas of the federal tax code, affecting the transfer of wealth both during life and at death. While only a small percentage of Americans are directly subject to these taxes, the planning implications extend to a much broader population, particularly as exemption amounts face potential changes in the coming years. Understanding how these taxes work, what exemptions and exclusions are available, and where the common pitfalls lie is essential for anyone involved in wealth transfer planning. This guide covers the fundamental rules, current thresholds, practical strategies, and audit risks associated with the federal estate and gift tax system.

Understanding the Unified Estate and Gift Tax System

The federal estate tax and gift tax operate as a unified transfer tax system. This means that the same cumulative exemption amount applies to both taxable gifts made during a person’s lifetime and the value of assets transferred at death. The top federal tax rate for amounts exceeding the exemption is currently 40%, as outlined in IRS Instructions for Form 706.

When an individual makes a taxable gift (one that exceeds the annual exclusion amount), that gift is reported on IRS Form 709 (United States Gift and Generation-Skipping Transfer Tax Return). The cumulative total of lifetime taxable gifts is then factored into the estate tax calculation at death, reducing the remaining exemption available to shelter the estate from taxation.

How the Unified Credit Works

The unified credit is the tax credit that effectively shelters a certain amount of transfers from estate and gift tax. For 2024, the applicable exclusion amount is $13.61 million per individual. For 2025, this figure increases to $13.99 million per individual due to inflation adjustments, according to IRS Revenue Procedure 2024-40. For a married couple utilizing portability (discussed below), the combined exemption may reach approximately $27.98 million in 2025.

It is important to note that these elevated exemption levels were established by the Tax Cuts and Jobs Act (TCJA) of 2017. Under current law, the exemption is generally scheduled to revert to pre-TCJA levels (approximately $5 million, adjusted for inflation, which may translate to roughly $7 million or more) after December 31, 2025. Congress could, of course, extend or modify these provisions, but as of early 2025, no such legislation has been enacted.

The Annual Gift Tax Exclusion

Separate from the lifetime exemption, the annual gift tax exclusion allows individuals to make gifts up to a specified amount per recipient per year without any gift tax consequences and without reducing their lifetime exemption. For 2024, this amount is $18,000 per recipient. For 2025, it increases to $19,000 per recipient, per IRS Revenue Procedure 2024-40.

Practical Example: Annual Exclusion Gifting

Consider a married couple with three children and four grandchildren (seven recipients total). In 2025, each spouse may give $19,000 per recipient annually. Using “gift splitting” (where both spouses consent to treat gifts as made equally by each), the couple could transfer up to $38,000 per recipient per year without any gift tax filing requirement beyond the election to split gifts. Across all seven recipients, that totals $266,000 per year removed from the couple’s taxable estate, with no reduction in their lifetime exemption.

Over a decade, this strategy alone could transfer $2.66 million (assuming consistent exclusion amounts, which typically increase with inflation) without any transfer tax impact. However, gift splitting requires filing Form 709 even when no taxable gift results, and failure to file may create compliance issues.

The Federal Estate Tax: What Is Included

The gross estate for federal estate tax purposes generally includes the fair market value of all assets in which the decedent had an interest at the time of death. This typically encompasses:

• Real estate, including primary residences and investment properties
• Bank accounts, brokerage accounts, and retirement accounts
• Business interests, including closely held corporations, partnerships, and LLCs
• Life insurance proceeds on policies owned by the decedent
• Personal property such as vehicles, jewelry, art, and collectibles
• Certain trust assets over which the decedent retained control or beneficial interest
• Jointly held property (typically the decedent’s proportionate share)

After determining the gross estate, certain deductions are available, including debts owed by the decedent, funeral expenses, administrative expenses, and, notably, the unlimited marital deduction for assets passing to a surviving U.S. citizen spouse and the unlimited charitable deduction for assets passing to qualified charitable organizations, as described in IRS Publication 559.

Practical Example: Estate Tax Calculation

Suppose an unmarried individual dies in 2025 with a gross estate valued at $18 million. During their lifetime, they made $2 million in taxable gifts (above the annual exclusion). The calculation would generally proceed as follows:

Item	Amount
Gross estate at death	$18,000,000
Less: deductions (debts, expenses)	($500,000)
Taxable estate	$17,500,000
Plus: adjusted taxable gifts made during life	$2,000,000
Total taxable transfers	$19,500,000
Less: applicable exclusion amount (2025)	($13,990,000)
Amount subject to estate tax	$5,510,000
Estimated estate tax at 40%	$2,204,000

This simplified example illustrates how lifetime gifts and the estate are combined. The actual computation involves a tax rate schedule and credits, but the 40% top rate generally applies to amounts above the exemption threshold.

Portability of the Estate Tax Exemption

Since 2011, the estate tax system has included a portability provision, which allows a surviving spouse to use the deceased spouse’s unused exclusion amount (DSUE). This means that if the first spouse to die does not fully utilize their exemption, the remainder may be transferred to the surviving spouse, effectively increasing their available exemption.

To claim portability, the executor of the first spouse’s estate must file a timely Form 706 (United States Estate and Generation-Skipping Transfer Tax Return), even if no estate tax is owed. Failure to file Form 706 typically results in the forfeiture of the deceased spouse’s unused exemption, which is a commonly overlooked planning step. The IRS has provided some relief through Revenue Procedure 2022-32 for late portability elections, but relying on such relief introduces uncertainty and potential complications.

Generation-Skipping Transfer Tax (GSTT)

In addition to the estate and gift tax, the generation-skipping transfer tax imposes an additional layer of taxation on transfers that skip a generation (for example, transfers from grandparents directly to grandchildren). The GSTT is designed to prevent families from avoiding a layer of estate tax by skipping a generation.

The GSTT exemption mirrors the estate tax exemption: $13.61 million in 2024 and $13.99 million in 2025. The GSTT rate is a flat 40%, applied on top of any applicable estate or gift tax. Improper allocation of the GSTT exemption is a frequent source of errors on Form 709 and may result in significant unintended tax consequences, as noted in IRS instructions for Form 706 and Form 709.

Common Planning Strategies

Irrevocable Life Insurance Trusts (ILITs)

Life insurance proceeds are generally included in a decedent’s gross estate if the decedent owned the policy or retained any incidents of ownership. By transferring a life insurance policy to an irrevocable life insurance trust (ILIT), the proceeds may be excluded from the taxable estate. However, this strategy requires that the insured survive at least three years after transferring the policy to the trust (the “three-year rule” under IRC Section 2035). Transfers that fail this test result in full inclusion of the policy proceeds in the estate.

Grantor Retained Annuity Trusts (GRATs)

A GRAT allows a grantor to transfer assets into an irrevocable trust while retaining an annuity payment for a specified term. If the assets appreciate at a rate exceeding the IRS Section 7520 interest rate, the excess appreciation passes to beneficiaries free of gift and estate tax. GRATs are generally most effective in low-interest-rate environments and with assets expected to appreciate significantly. The risk is that if the grantor dies during the GRAT term, the assets are typically included in the estate, negating the tax benefit.

Valuation Discounts for Family Entities

Transfers of interests in family limited partnerships (FLPs) or family LLCs may qualify for valuation discounts based on lack of marketability and lack of control. These discounts can sometimes reduce the taxable value of transferred interests by 20% to 40% compared to the underlying asset values. However, the IRS closely scrutinizes these arrangements. Entities formed primarily for tax avoidance purposes, lacking legitimate business operations, or created shortly before death are frequently challenged on audit. The Tax Court has disallowed discounts in numerous cases where the entity lacked economic substance (see, for example, Estate of Powell v. Commissioner).

Charitable Giving Strategies

Charitable remainder trusts (CRTs), charitable lead trusts (CLTs), and direct charitable bequests may reduce the taxable estate through the unlimited charitable deduction. These tools can be particularly effective for individuals with highly appreciated assets, as they may also help avoid capital gains tax on the appreciation. However, the rules governing charitable split-interest trusts are technically demanding, and errors in drafting or administration may disqualify the charitable deduction entirely.

The Stepped-Up Basis at Death

One of the most significant tax benefits associated with estate transfers is the stepped-up basis provision under IRC Section 1014. Assets included in a decedent’s gross estate generally receive a new cost basis equal to their fair market value at the date of death (or the alternate valuation date, if elected). This eliminates any unrealized capital gains that accrued during the decedent’s lifetime.

For example, if a decedent purchased stock for $100,000 and it was worth $1,000,000 at death, the beneficiary’s basis in the stock would typically be $1,000,000. If the beneficiary subsequently sells the stock for $1,000,000, no capital gains tax is owed. This benefit is not available for assets transferred by gift during the donor’s lifetime, where the recipient generally takes the donor’s original basis (carryover basis). This distinction between gifting and bequeathing assets is a critical planning consideration.

Audit Risks and Common Pitfalls

The IRS has historically devoted significant resources to auditing estate tax returns, particularly those involving:

• Valuation disputes: Undervaluation of real estate, closely held business interests, art, and other hard-to-value assets is the single most common area of estate tax controversy.
• FLP and LLC discounts: As noted, the IRS frequently challenges valuation discounts that it considers excessive or unsupported by economic substance.
• Deathbed transfers: Gifts or entity formations made shortly before death may be scrutinized under IRC Sections 2035 through 2038, which can cause assets to be pulled back into the gross estate.
• Incomplete or late filings: Form 706 is due nine months after the date of death (with a six-month extension available). Late filings may result in penalties and interest, and missed portability elections can be costly.
• Improper GSTT allocation: Failure to properly allocate the generation-skipping transfer tax exemption on Form 709 is a frequent and sometimes irreversible error.

According to data from the IRS Data Book (2023), estate tax returns for larger estates face audit rates significantly higher than those for individual income tax returns, with some estimates suggesting audit rates above 20% for estates exceeding $10 million in gross value.

State Estate and Inheritance Taxes

In addition to federal taxes, many states impose their own estate or inheritance taxes, often with much lower exemption thresholds. As of 2025, approximately 12 states and the District of Columbia impose an estate tax, and 6 states impose an inheritance tax (with Maryland imposing both), according to the Tax Foundation’s analysis of state estate and inheritance taxes. State exemptions may be as low as $1 million in some jurisdictions, meaning that many estates that owe no federal tax may still face state-level liability. State tax rules vary considerably, and domicile planning (the state in which an individual is considered a legal resident) can have substantial financial implications.

The 2026 Sunset: Planning Under Uncertainty

The potential reduction of the federal exemption after 2025 creates a unique planning window. Individuals with estates between approximately $7 million and $14 million (roughly the projected post-sunset and current exemption levels) may wish to consider making large gifts before the exemption decreases. The IRS has confirmed in Treasury Regulation Section 20.2010-1(c) that individuals who take advantage of the higher exemption before it sunsets will not be penalized, meaning there will be no “clawback” of the additional exemption amount used for gifts made during the higher-exemption period.

However, making large gifts involves tradeoffs: the donor loses access to the gifted assets, the gifted assets do not receive a stepped-up basis at the donor’s death, and the gifts may trigger state gift tax consequences in certain jurisdictions. These factors mean that accelerated gifting is not universally advantageous, and the decision typically requires careful analysis of the individual’s financial needs, life expectancy, asset composition, and overall estate plan.

Data Sources

• IRS Revenue Procedure 2024-40: Annual inflation adjustments for estate, gift, and generation-skipping transfer tax exemptions and exclusions for 2025.
• IRS Revenue Procedure 2023-34: Inflation adjustments for 2024 tax year figures.
• IRS Publication 559: Survivors, Executors, and Administrators, covering estate tax filing requirements and deductions.
• IRS Instructions for Form 706: United States Estate (and Generation-Skipping Transfer) Tax Return, detailing computation of estate tax.
• IRS Instructions for Form 709: United States Gift (and Generation-Skipping Transfer) Tax Return, detailing gift tax reporting requirements.
• IRS Revenue Procedure 2022-32: Simplified method for obtaining an extension of time to make a portability election.
• Treasury Regulation Section 20.2010-1(c): Anti-clawback rule for gifts made during the period of increased exemption under the TCJA.
• IRC Sections 2035 through 2038: Rules governing transfers within three years of death and retained interests in transferred property.
• IRC Section 1014: Basis of property acquired from a decedent (stepped-up basis).
• IRS Data Book 2023: Statistics on audit rates and enforcement activities for estate tax returns.
• Tax Foundation, “Does Your State Have an Estate or Inheritance Tax?” (2024): Comprehensive overview of state-level estate and inheritance tax regimes.