Living trusts are a common estate planning device that can shield a person’s assets from the probate process. For married couples in California holding substantial assets, a more complex form of trust planning is available. Known as survivor and exemption trusts, or sometimes as A/B trusts, these special trusts can reduce the potential impact of federal estate taxes.
As of 2013, the federal estate tax exempts the first $5.25 million of a person’s estate. The law also provides an unlimited marital deduction for assets transferred from a deceased spouse to a surviving spouse. This means that when the first spouse dies, his or her entire estate-including any share of community property-may be transferred to the second spouse and no estate tax will be due, as the first spouse’s estate is considered empty. When the second spouse dies, his or her estate can then claim the $5.25 million exemption, owing federal estate tax on the surplus.
The A/B trust, however, provides a mechanism so that both spouses estates may benefit from the $5.25 million exemption. A couple initially creates a living trust to hold their assets. When the first spouse dies, this trust is then subdivided into a survivor’s trust and an exemption trust. The survivor’s (or “A”) trust represents the surviving spouse’s half of the property initially placed in trust. The surviving spouse can still modify or revoke this trust at any time. The exemption (or “B”) trust contains the deceased spouse’s share. The surviving spouse still has access to assets in the B trust, but title to the property remains with the exemption trust. This allows the exemption trust to claim the $5.25 million exemption for the deceased spouse, while allowing the surviving spouse’s future estate to keep its own exemption, thus effectively doubling the exemption on the couple’s assets to $10.5 million.