However, under New York State estate law, you may have just about any person or entity serving as the beneficiary of your retirement account. Usually, you fill out the required paperwork and submit it to the plan administrator, who then can tell you what your benefits will be and when they will start.IRA beneficiaries can include spouses, children, parents, trusts, or charities. In the NYSNA Pension Plan. Funded arrangement to provide health benefits to employees covering the corporation and all of its subsidiaries constitute a MEWA? You can specify all or a percentage of the assets you want each beneficiary to receive. Often, it's as easy as filling out a form. If you are married, federal law says your spouse is automatically the beneficiary of a 401k or other pension plan.