The federal marital deduction allows property passing to a surviving spouse who is a US citizen to move without federal estate or gift tax at that transfer. Its logic is that the government does not tax a married couple's wealth twice; it defers, treating the couple as a single economic unit until the second death.
Deferral is the essential word. The deduction removes tax at the first spouse's death, but assets remaining in the survivor's estate are measured at their death. A plan that relies wholly on the marital deduction can move a problem forward in time rather than resolving it, particularly for estates that grow afterward.
There is a condition attached: the property must generally pass in a qualifying form. An outright gift qualifies. Certain trust arrangements qualify by design, letting a first spouse provide for a survivor while still controlling where the property goes afterward — the standard answer for second marriages with children from a prior relationship.
One significant limitation is worth naming: the unlimited deduction is available for transfers to a spouse who is a US citizen. Transfers to a non-citizen spouse are treated differently and typically require a specific type of trust to obtain comparable deferral. Federal thresholds and rules change over time, so confirm current figures with a tax professional rather than any general article.
Frequently asked
- Does the marital deduction mean my spouse never pays estate tax?
- It means no federal estate tax is due on qualifying transfers at your death. It does not eliminate the tax permanently. Whatever the survivor still holds is measured against the rules in force at their death, and their estate may then be exposed, including on growth that occurred in between. Couples with substantial assets often use trust structures alongside the deduction rather than relying on it alone.
- What if my spouse is not a US citizen?
- The unlimited deduction does not apply in the ordinary way. Federal law treats transfers to a non-citizen spouse differently, generally requiring a qualified domestic trust to achieve comparable deferral, with annual gifting during life subject to its own separate limit. The applicable amounts and requirements are set federally and change over time, so this is a situation to review with a tax professional rather than plan from a general reference.
- Do state estate taxes work the same way?
- Not necessarily. The marital deduction described here is a federal provision, and states that impose their own estate or inheritance tax set their own rules, thresholds, and treatment of spousal transfers. Some track the federal approach closely, some diverge, and most states have no such tax at all. Since your exposure depends on where you live and sometimes where your property is located, check your state specifically.