By Michael K. Elson, Attorney at Law.
Many couples have executed an A-B "credit shelter" or "bypass" trust in order to preserve estate tax exemptions for both spouses. This can potentially benefit the heirs by saving hundreds of thousands — or millions — of dollars in inheritance taxes. The consequence of the credit shelter trust, however, is that estate assets are necessarily sheltered from the surviving spouse.
The hidden capital gains problem
Assets transferred to the credit shelter trust (also known as the "B" trust) will not receive a stepped-up basis upon the death of the surviving spouse, to which they may otherwise be entitled. Of course there is a step-up in tax basis on this property when the first spouse passes away, but if the surviving spouse lives long enough for the assets to significantly appreciate further, this loss of a second step-up could create an unfavorable and unnecessary capital gains liability on the heirs.
Because language in many trusts calls for the credit shelter trust to be funded with an amount equal to the federal exclusion amount in effect at the time of death, the sheltered amount can be quite large and leave the surviving spouse with too little in the way of assets. Even more concerning is the potential loss of the full step-up in tax basis without any corresponding estate tax benefit.
Fortunately, proper planning can fix this
Fortunately, proper estate planning — including the use of a "disclaimer A-B trust" — can relieve this problem.
Use of a qualified disclaimer provision (I.R.C. § 2046; I.R.C. § 2518) is a method that has gained a great deal of favor due to its flexibility. The disclaimer allows provisions for federal estate tax planning to be included in trust drafting, while providing the surviving spouse the right to make a decision as to whether the transfer of the decedent spouse's share will actually take place — via disclaimer to the credit shelter trust, or outright, as provided in the estate plan.
With federal estate tax exemption amounts drastically changing, there is more potential that, as of the date of a spouse's death, it may not be necessary for the surviving spouse to relinquish control of assets in order to eliminate federal estate tax. Taking into account his or her own needs and the prevailing tax environment, the surviving spouse will be able to fund the credit-shelter trust with an amount that makes sense. In many ways, this is preferable to locking in a fixed amount far in advance.
Decisions can be made as of the date of death (and must be made within nine months), when applicable tax law and asset values can be ascertained and the best choices can be made based on current facts and your goals.
When the portability election is the better tool
On the other hand, many estates are currently large enough, or have the potential to be large enough, that federal estate tax certainly could be an issue. If the tax has been phased out — or if the exclusion amounts have increased enough that the value of the surviving spouse's estate (after inheriting from the decedent spouse) will not exceed the applicable exclusion amount — then there is no need to relinquish control.
Another option is to utilize a portability election, essentially porting the unused exemption from the first spouse to die to the surviving spouse. This method can allow both spouses' estate tax exemption to be used, and at the same time allow all of the assets to receive a fully stepped-up basis upon the death of the surviving spouse. For many, this is a good approach — but there can be pitfalls, particularly in the event a surviving spouse remarries.
The disclaimer trust as "best of both worlds"
Use of the disclaimer trust provides the greatest flexibility in overall planning, the greatest opportunity to apply current goals, tax law, and financial situation to make sound choices at the time decisions must be made, and retains the greatest degree of control for you. When reviewing your estate plan, changes in the law and your estate should be taken into account to avoid unintended consequences which may have been unforeseeable at the time the plan was initially executed.
If your trust was signed before 2018 and has not been reviewed since, there is a real chance the mandatory A-B funding provision is now working against you rather than for you. A trust review is $500 — we will tell you if a change is warranted.