
Spousal Lifetime Access Trusts
Preserving access while planning for future generations.
A Spousal Lifetime Access Trust (SLAT) is an irrevocable trust created by one spouse for the benefit of the other spouse and, potentially, other family members. The strategy allows married couples to transfer assets for the benefit of future generations while preserving the beneficiary spouse’s ability to receive trust distributions during their lifetime.
By balancing spousal access with long-term wealth transfer, a SLAT can support estate tax planning and asset protection while helping preserve family wealth across generations.
Planning Overview
How a Spousal Lifetime Access Trust Works
The spouse establishing the SLAT—often referred to as the donor or funding spouse—transfers assets to an irrevocable trust for the benefit of the other spouse. An independent trustee administers the trust and may make distributions to the beneficiary spouse in accordance with the trust agreement.
Following the beneficiary spouse’s death, the remaining trust assets may continue for children, grandchildren, or other beneficiaries.
Gift Tax Treatment
Completed Gift and Incomplete Gift SLATs
SLATs may be structured as completed or incomplete gifts for federal gift tax purposes. Both types of SLATs are irrevocable and may allow the beneficiary spouse to receive distributions of income and, under certain conditions, principal. However, their tax treatment and planning objectives differ.
Completed Gift SLAT
A transfer to a Completed Gift SLAT is treated as a completed gift and generally uses a portion of the funding spouse’s available lifetime gift and estate tax exemption. Properly structured, the transferred assets and their future appreciation are removed from the funding spouse’s taxable estate.
Incomplete Gift SLAT
A transfer to an Incomplete Gift SLAT is not treated as a completed gift and does not use the funding spouse’s lifetime gift tax exemption. The assets generally remain part of the funding spouse’s taxable estate, but the structure may offer asset protection and other planning benefits.
Jurisdiction Selection
Why South Dakota for a SLAT?
Selecting the best trust jurisdiction is an important consideration when establishing a SLAT. South Dakota’s modern trust laws provide a sophisticated framework for both Completed Gift and Incomplete Gift SLATs, offering flexibility, privacy, and long-term planning capabilities.
Questions About Spousal Lifetime Access Trusts?
If you would like to learn more about Spousal Lifetime Access Trusts or explore planning opportunities available under South Dakota trust law, reach out to us through our contact form or call us at (605) 224-9189.




