A kind of trust which allows a wedded investor when passing assets on to heirs, in order to avoid estate taxes. The trust is structured so that upon the departure of the investor, the assets stipulated in the trust arrangement (up to your predetermined maximum dollar value) are transferred to the beneficiaries named in the trust (usually the couple"s kids). Nevertheless, a vital advantage to such a trust is that rights are maintained by the partner to the trust assets as well as the income they produce through the rest of her or his life. This form of trust can also be called an AB Trust"."