Gumbiner Savett Inc.There’s no law that says you can’t prepare your own estate plan. But unless your estate is small and your plan is exceedingly simple, the pitfalls of do-it-yourself estate planning can be many.

The following discussion applies equally for those who already have an estate plan put into place by a qualified estate and trust attorney. It is highly recommended that your will and trust documents be reviewed by a qualified tax professional at least every 2 to 3 years, particularly in light of the significant changes in the tax laws that have occurred in recent years and that are expected to occur in the future.

Dotting the i’s and crossing the t’s

A common mistake people make with estate planning is to neglect the formalities associated with the execution of wills and other documents. Rules vary from state to state regarding the number and type of witnesses who must attest to a will and what, specifically, they must attest to.

Also, states have different rules about interested parties (that is, beneficiaries) serving as witnesses to a will or trust. In many states, interested parties are ineligible to serve as witnesses. In others, an interested-party witness triggers an increase in the required number of witnesses (from two to three, for example).

Keeping abreast of tax law changes

Legislative developments during the last several years demonstrate how changes in the tax laws from one year to the next can have a dramatic impact on your estate planning strategies. Do-it-yourself service providers don’t offer legal or tax advice — and provide lengthy disclaimers to prove it. Thus, they cannot be expected to warn users that tax law changes may adversely affect their plans.

Consider this example: In 2003, Dave used an online service to generate estate planning documents. At the time, his estate was worth $2 million and the federal estate tax exemption was $1 million.

Dave’s plan provided for the creation of a trust for the benefit of his children, funded with the maximum amount that could be transferred free of federal estate tax, with the remainder going to his wife, Ann. If Dave died in 2003, for example, $1 million would have gone into the trust and the remaining $1 million would have gone to Ann.

Suppose, however, that Dave dies in 2011, when the federal estate tax exemption has increased to $5 million and his estate has grown to $4 million. Under the terms of his plan, the entire $4 million — all of which can be transferred free of federal estate tax — will pass to the trust, leaving nothing for Ann.

The outcome might be even worse if Dave lives in a state that has “decoupled” from the federal exemption. If, for example, the applicable state exemption is $2 million, half of the money transferred to the trust will be subject to state estate tax.

While even a qualified professional couldn’t have predicted in 2003 what the estate tax exemption would be at Dave’s death, he or she could have structured a plan that would provide the flexibility needed to respond to tax law changes.

Don’t try this at home

These are just a few examples of the many pitfalls associated with do-it-yourself estate planning. To ensure that you achieve your estate planning objectives, it’s important to have your documents prepared by a qualified attorney. Then, have your accounting professionals review your plan periodically to be sure it’s up to date.