This report provides an overview of the potential effects of marriage on Supplemental Security Income (SSI) eligibility and benefits. It includes an overview of the SSI program, information on the SSI resource limits, and a discussion of how the marriage of an SSI beneficiary to either another beneficiary or an ineligible person can affect his or her eligibility for benefits or monthly benefit level. In some cases, marriage may result in a person being denied SSI benefits or having his or her monthly SSI benefit level reduced. This situation has been called a "marriage penalty" by the National Council on Disability. Under the provisions of Title XVI of the Social Security Act, disabled individuals and persons who are 65 or older are entitled to benefits from the SSI program if they have income and assets that fall below program guidelines. SSI benefits are paid out of the general revenue of the United States and all participants receive the same basic monthly federal benefit. In most states, adults who collect SSI are automatically entitled to coverage under the Medicaid health insurance program. The basic monthly federal benefit amount for 2009 is $674 for a single person and $1,011 for a couple. This amount is supplemented by 44 states and the District of Columbia. Arkansas, Kansas, Mississippi, North Dakota, Tennessee, West Virginia, and the Commonwealth of the Northern Mariana Islands do not offer a state supplement. A participant in the SSI program receives the federal benefit amount, plus any state supplement, minus any countable income. At the end of December 2008, over 7.5 million people received SSI benefits. In that month, these SSI beneficiaries each received an average cash benefit of $477.80 and the program paid out a total of just under $3.9 billion in SSI benefits. The average monthly benefit is lower than the federal benefit amount because a person's total monthly benefit may be lowered based on earnings and other income. Individuals and couples must have limited assets or resources in order to qualify for SSI benefits. Resources are defined by regulation as "cash or other liquid assets or any real or personal property that an individual (or spouse, if any) owns and could convert to cash to be used for his or her support and maintenance." When a couple marries and pools their assets, they may find themselves with resources that render them ineligible for continued SSI benefits. The countable resource limit for SSI eligibility is $2,000 for individuals and $3,000 for couples. These limits are set by law, are not indexed for inflation and have been at their current levels since 1989. Not all resources are counted for SSI purposes. Excluded resources include an individual's home, a single car used for essential transportation and other assets specified by law and regulation. Federal regulations establish the definition of marriage for the purposes of determining SSI eligibility and calculating SSI benefits. Two people are considered married for the purposes of the SSI program if one of the following conditions is present: The couple is legally married under the laws of the state in which they make their permanent home; The SSA has determined that either person is entitled to Social Security benefits as the spouse of the other person; or The couple is living together in the same household and is leading people to believe that they are married. Under the terms of the Defense of Marriage Act, P.L. 104-199 , a married couple must consist of one man and one woman for the purposes of the SSI program. When two SSI beneficiaries marry, they are considered a beneficiary couple. As a result, they are entitled to a federal benefit of up to $1,011 per month and may have countable resources valued at up to $3,000. Their combined countable income is used to reduce their monthly benefit. The marriage of two SSI beneficiaries can have a negative effect on their eligibility for benefits and their total amount of benefits. As a married couple, both beneficiaries are presumed to have access to the couple's shared income and resources. Compared with two single beneficiaries as single persons, a married couple has a lower resource limit, a lower maximum federal benefit, and a lower amount of excluded income as shown in Table 1 . Single SSI beneficiaries can have countable resources valued at up to $2,000. Combined, two such single beneficiaries can have a total of up to $4,000 in countable resources and can exclude from their countable resources two cars and two houses. However, as a married couple, their maximum amount of resources is $3,000 and they may exclude from their countable resources one car and one house. The maximum federal SSI benefit for 2008 is $674 per month for a single beneficiary and $1,011 per month for a married couple. Two unmarried beneficiaries could each receive up to $674 per month in benefits or a combined monthly benefit of up to $1,348. However, as a married couple, these beneficiaries can receive a maximum benefit of $1,011 per month. A single SSI beneficiary is allowed to exclude $85 of income (the first $20 in monthly earnings and $65 in earned income on top of the first $20) as well as one-half of all earned income above $65 from the income used to reduce the monthly SSI benefit. Two single beneficiaries can each exclude the basic $85 for a combined exclusion of $170. However, a married couple is entitled to exclude only the basic $85 and one-half of their combined earnings over $65. The marriage of an SSI beneficiary to a person who does not receive SSI benefits can have a negative effect on the SSI beneficiary's eligibility and amount of benefits if the ineligible spouse brings significant income or assets to the family. Generally, the income and assets of both persons in a marriage are considered shared and equally available to either person, which can result in an increase in the beneficiary's countable income or resources after marriage. When an SSI beneficiary marries a person who does not receive SSI benefits, a portion of the ineligible spouse's income is assigned, or deemed, to the SSI beneficiary and is counted as income for the purposes of determining benefit eligibility and the amount of monthly benefits. The procedure used to deem income from an ineligible person to his or her spouse who receives SSI benefits consists of several steps set by regulation and takes into account the overall size of the family. The four steps in the income deeming process are included below and two examples of income deeming are provided in Table 2 at the end of this report. The first step in the deeming process is to determine the countable monthly income of the ineligible spouse by taking his or her total earned and unearned income and reducing it by a special limited set of income exclusions. Generally, most income other than federal social service benefits is counted. Once the countable income of the ineligible spouse has been established, this amount is further reduced to account for any ineligible children living in the household or any aliens that the ineligible spouse may be sponsoring. For each child or sponsored alien, the countable income of the ineligible spouse is reduced by an amount equal to the difference between the monthly federal SSI benefit rate for a couple and the monthly federal SSI benefit rate for an individual. For 2009, this amount is $337, the difference between the federal SSI benefit rate for a couple of $1,011 and the rate for an individual of $674. The final countable monthly income of the ineligible spouse is used to determine the continued SSI eligibility of the beneficiary. If the final countable income of the ineligible spouse is less than or equal to the difference between the monthly federal SSI benefit rate for a couple and the monthly federal SSI benefit rate for an individual ($337 for 2009), then no income is deemed to the beneficiary and the beneficiary is eligible to continue receiving SSI benefits as an individual. If, however, the final countable income of the ineligible spouse is greater than the difference between the monthly federal SSI benefit rate for a couple and the monthly federal SSI benefit rate for an individual, then the beneficiary and his or her spouse are considered a couple and eligible to receive SSI benefits at the level for a couple. If a married beneficiary is considered an individual after Step 3, then his or her monthly SSI benefit is equal to the federal benefit rate for an individual minus any of his or her countable income. The income of the ineligible spouse is not considered when determining the benefit amount in this case. If, however, the married beneficiary and his or her spouse are considered a couple after Step 3, then their benefit is reduced by their combined countable income. The final countable income of the ineligible spouse is added to the total income of the beneficiary. This amount is then reduced by the standard income exclusions and the couple's monthly benefit is reduced by this final income amount. Unlike the rules governing the deeming of income from an ineligible spouse to an SSI beneficiary, the resource deeming rules are straightforward. Any resources owned by the ineligible spouse are deemed to the beneficiary. All of the resources of a married couple are considered to be available to the SSI beneficiary and are subject to the regular SSI resource limitations. If the beneficiary is considered a single beneficiary, then he or she may have countable resources valued at up to $2,000. If, after the deeming of income, he or she is considered part of a beneficiary couple, then the countable resource limit is $3,000. The only exception to this rule is that the pension plan of an ineligible spouse is not deemed to a beneficiary.