A living trust — also called a revocable living trust — is a legal arrangement where a person, called the grantor, transfers ownership of assets into a trust during their lifetime. The grantor typically also serves as the initial trustee, meaning they continue to manage those assets day-to-day. When the grantor dies, assets in the trust pass to named beneficiaries without going through probate — the court process for settling certain assets after death.
Because the grantor keeps full control over the trust during their lifetime, the IRS treats a standard revocable living trust as a “grantor trust” for federal income tax purposes. That classification shapes how the trust is taxed at every stage, and it is the starting point for understanding the tax picture. For a broader overview of how a revocable living trust is structured and what it covers, see our page on revocable living trusts in California.
Income Taxes During Your Lifetime
As long as the grantor is alive and the trust remains revocable, there is no separate federal income tax return for the trust itself.
The IRS treats the grantor and the revocable trust as a single taxpayer for income tax purposes. Any income earned inside the trust — interest, dividends, rental income, or capital gains — flows directly to the grantor’s personal federal return (Form 1040). The trust does not file its own return or pay its own income taxes.
From a practical standpoint, this means:
- Income from trust assets is reported on the grantor’s personal tax return using their Social Security number.
- There is no separate tax identification number required for a revocable trust while the grantor is alive and acting as trustee.
- Transferring assets into a revocable trust is not a taxable event — it is not treated as a sale and does not reset the asset’s tax basis.
California follows the same framework. The California Franchise Tax Board (FTB) accepts the federal optional reporting method for grantor trusts, which means the grantor reports trust income on their personal California income tax return rather than filing a separate California fiduciary return.
For income tax purposes, running a revocable living trust during your lifetime looks much the same as holding assets in your own name.
What Changes at Death: The Trust Becomes Irrevocable
When the grantor dies, the trust automatically becomes irrevocable. It can no longer be changed or revoked. That shift changes the tax picture in several important ways.
The trust becomes a separate taxpayer. An irrevocable trust that earns income generally needs its own federal Employer Identification Number (EIN) and will need to file a federal Form 1041, U.S. Income Tax Return for Estates and Trusts. The successor trustee — the person named to manage the trust after the grantor’s death — is responsible for this filing.
California has a parallel requirement. After the grantor’s death, the trust will typically need to file California Form 541, the California Fiduciary Income Tax Return, for income earned by the trust in California.
Trust income is taxed at compressed rates. Federal income tax brackets for trusts reach the highest rate at a much lower income level than the brackets for individual taxpayers. Income retained inside an irrevocable trust can be taxed at higher rates than the same income would be if distributed directly to an individual beneficiary. This is something successor trustees often consider when deciding the timing and amount of distributions.
Distributed income passes to beneficiaries. When the trust distributes income to a beneficiary, that income generally moves out of the trust’s tax picture. The beneficiary reports it on their own personal tax return. The trust issues a Schedule K-1 to each beneficiary reflecting what they received.
The successor trustee’s responsibilities — including tax filings, accounting, and distributions — are a meaningful part of trust administration. For more on what those responsibilities involve, see our overview of trust administration in California.
Step-Up in Basis: A Key Tax Concept for Inherited Trust Assets
One of the most significant tax benefits associated with a revocable living trust involves what is called a “step-up in basis.”
The basis of an asset is generally what the original owner paid for it. When someone sells an asset, capital gains tax applies to the difference between the sale price and the basis. The higher the basis, the smaller the potential gain.
When a grantor dies with assets held in a revocable living trust, those assets may receive a step-up in basis under federal tax law (IRC §1014). This means the asset’s tax basis is adjusted to its fair market value as of the date of the grantor’s death. Because the trust’s assets were included in the grantor’s taxable estate, they qualify for this adjustment.
For a beneficiary who later sells an inherited asset, the gain is measured from the stepped-up value — not from what the grantor originally paid decades earlier. In families with long-held appreciated property or investments, this can significantly reduce the capital gains tax that would otherwise be due on a sale.
This benefit does not apply to assets given away during the grantor’s lifetime. A lifetime gift carries over the original basis to the recipient. Retaining appreciated property in a revocable trust until death — rather than gifting it — is one reason some families choose that approach.
In California, community property held in a revocable trust may also receive favorable basis treatment at the death of the first spouse, though the specifics depend on how the property is titled and structured.
Estate Taxes and the Living Trust
A standard revocable living trust does not reduce or eliminate the federal estate tax on its own.
Because the grantor retains full control over the trust’s assets during their lifetime, those assets are included in the grantor’s taxable estate for federal estate tax purposes. Moving assets into a revocable trust does not remove them from the estate.
The federal government imposes an estate tax only on estates above a certain threshold. Under current federal law, that threshold is substantial — most California families will not owe federal estate tax. The threshold is subject to future legislative adjustment, and families with larger estates may want to consider how this affects their planning.
California does not have a state estate tax or inheritance tax. There is no California-level estate tax layered on top of the federal system. For California families, the federal estate tax is the only estate tax that may apply.
For families whose estates may approach or exceed the federal threshold, certain irrevocable trust structures can play a role in a broader estate tax planning strategy. That type of planning is separate from how a standard revocable trust works and involves more complex arrangements. Our estate tax and asset protection page provides an overview of those options, and our page on the A/B trust covers one structure commonly used in estate tax planning.
Irrevocable Trusts and Tax Treatment
Not every trust is revocable. Some trusts are intentionally structured as irrevocable from the outset — often as part of an estate tax planning or asset protection strategy.
Because the grantor gives up control over an irrevocable trust’s assets, those assets may be excluded from the grantor’s taxable estate, which can reduce federal estate tax exposure. The trade-off is that the grantor generally cannot take the assets back or change the terms of the trust.
The income tax treatment of an irrevocable trust varies depending on how it is structured. Some irrevocable trusts are still classified as grantor trusts for income tax purposes, meaning the grantor continues to report the trust’s income on their personal return even though they no longer control the assets. Others are treated as separate taxpayers from the start. The rules depend on the specific powers retained or excluded in the trust document.
A life insurance trust — often called an irrevocable life insurance trust, or ILIT — is one example of an irrevocable trust structure used in estate planning. It is designed to keep life insurance proceeds out of the taxable estate. For more on how that structure works, see our page on life insurance trusts.
Whether a revocable or irrevocable trust is the right fit depends on the family’s goals, the assets involved, and the applicable tax rules. An attorney familiar with California estate planning can help a family think through which structure makes sense for their situation.
California Income Taxes on Trust Income
During the grantor’s lifetime, California income tax on trust earnings follows the federal grantor trust approach — the income is reported on the grantor’s personal California return using the FTB’s accepted optional reporting method.
After the grantor’s death, the trust becomes subject to California’s fiduciary income tax framework. The successor trustee will typically need to file California Form 541 — the California Fiduciary Income Tax Return — for income the trust earns after the grantor’s death. California issues a Schedule K-1 (541) to beneficiaries who receive distributions, which they report on their own California income tax returns.
California’s rules on which trusts owe California income tax — and on what income — can depend on factors such as where the trustee and beneficiaries are located, where assets are held, and whether income has a California source. These rules are detailed and fact-specific. Families navigating post-death trust administration in California often work with both an estate planning attorney and a CPA familiar with California fiduciary income tax.
What a Trustee and Beneficiaries Typically Need to Know
For families settling a trust after the grantor’s death, several tax-related steps often come up in the administration process:
- The successor trustee will generally need to obtain a federal EIN for the trust from the IRS.
- If the trust earns income, the trustee may need to file a federal Form 1041 and a California Form 541.
- Beneficiaries who receive income distributions will receive a Schedule K-1 and should report that income on their personal returns.
- Appreciated assets in the trust may receive a step-up in basis, which can reduce capital gains if a beneficiary later sells those assets.
- Documentation of asset values as of the grantor’s date of death is typically important for establishing the stepped-up basis.
Successor trustees are not expected to be tax professionals, but working with a CPA or tax advisor experienced in trust and estate matters is common practice during the administration period.
How VK Law Can Help
VK Law works with California families on estate planning questions, including how trusts are structured for tax and non-tax purposes, what successor trustees need to do after the grantor’s death, and how to think through trust design in light of a family’s specific goals and assets.
If you have questions about a living trust you already have, a trust you are considering, or what happens to trust assets after a loved one passes away, our team is available to discuss your situation. To talk with VK Law about your planning options, call 877-780-4727.
Frequently asked questions How Do Taxes Work In a Living Trust?
In most cases, no. A standard revocable living trust is treated as a grantor trust for federal income tax purposes while the grantor is alive and serving as trustee. Income earned by the trust is reported on the grantor’s personal federal and California state income tax returns — not on a separate trust return. California follows the federal optional reporting method for grantor trusts.
For federal income tax purposes, transferring property into a revocable living trust is not a taxable event. It is not treated as a sale and does not reset the property’s tax basis. California property tax reassessment is a separate question — California’s Proposition 19 rules govern when real property changes ownership for property tax purposes, and those rules apply to trust transfers in certain circumstances. Families with California real estate held in a trust may want to confirm how their specific transfer is treated under Prop 19.
When the grantor dies, the trust becomes irrevocable and is treated as a separate taxpayer. The successor trustee will need to obtain a federal EIN and may need to file a federal Form 1041. In California, the trustee may also need to file California Form 541. Beneficiaries who receive income distributions will report that income on their own returns and receive a Schedule K-1.
A standard revocable living trust does not reduce federal estate taxes on its own. Because the grantor retains control over the assets, they remain part of the taxable estate. The federal estate tax applies only to estates above a substantial threshold, and most California families will not owe it. For families with larger estates, certain irrevocable trust structures may be used as part of a broader estate tax planning strategy — but that involves a different type of trust and a more involved planning process.
A step-up in basis is an adjustment to the tax basis of an inherited asset — the amount used to calculate capital gains — to the asset’s fair market value at the date of the owner’s death. Under federal tax law (IRC §1014), assets held in a revocable living trust that pass to beneficiaries at the grantor’s death generally qualify for this adjustment. This can reduce or eliminate capital gains taxes for beneficiaries who later sell those assets.
It depends on what is being distributed. When the trust distributes income — such as dividends or interest earned after the grantor’s death — that income is generally taxable to the beneficiary and reported using the Schedule K-1 they receive from the trust. Distributions of principal — the original assets placed into the trust, not investment earnings — are generally not separately taxable as income to the beneficiary.
No. California does not have a state estate tax or inheritance tax. California’s estate tax was eliminated in 2005 when the federal credit it relied on was repealed. California residents are subject to the federal estate tax framework, but there is no separate California estate tax layered on top of it.
