Understanding Social Security and SSI Programs

What Are Social Security and SSI Programs?

Social Security and Supplemental Security Income (SSI) are two separate federal programs that provide monthly payments to millions of Americans. Many people assume these programs are the same, but they have different rules, funding sources, and purposes. Understanding the distinctions between them is important because the requirements to receive benefits and the amounts paid differ significantly.

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Social Security is a federal insurance program that has existed since 1935. It is funded through payroll taxes that workers and employers contribute during a person's working years. The program currently serves about 67 million people in the United States, including retired workers, disabled workers, and survivors of deceased workers. When someone pays into Social Security through their paychecks, they earn "credits" that count toward future benefits. These credits are based on earnings, and most people need 40 credits to be eligible for retirement benefits.

SSI is a separate needs-based program created in 1972. Unlike Social Security, SSI is funded through general federal tax revenue rather than payroll taxes. SSI provides monthly payments to people who have limited income and resources, regardless of their work history. The program serves about 8 million people, including children and adults who are blind, disabled, or age 65 and older. A person does not need to have worked or paid taxes to receive SSI benefits.

As of 2024, the average Social Security retirement benefit is about $1,907 per month. The average SSI payment is lower—around $943 per month for individuals. These amounts change each year based on cost-of-living adjustments. The maximum SSI benefit in 2024 is $943 per month for an individual living alone, though this can vary by state since some states add extra payments on top of the federal amount.

Practical takeaway: Social Security is an earned-benefits program based on work history and payroll taxes, while SSI is a needs-based program for people with low income and limited resources. These are different programs with different rules, even though they are both administered by the Social Security Administration (SSA).

How Social Security Works: Retirement, Disability, and Survivor Benefits

Social Security provides three main types of benefits: retirement benefits, disability benefits (SSDI), and survivor benefits. Each type serves a different purpose and has different requirements. Understanding which type of benefit you or a family member might receive helps you prepare and know what to expect.

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Retirement benefits are the most common type of Social Security benefit. Workers who have earned at least 40 credits can receive retirement benefits starting at age 62. However, the amount of the monthly benefit depends on the age when someone begins receiving payments. A person who starts benefits at age 62 receives less per month than someone who waits until their full retirement age (which ranges from age 66 to age 67, depending on birth year). If someone waits until age 70, they receive the maximum amount. For example, a worker born in 1960 with a full retirement age of 67 might receive 70% of their full benefit at age 62, 100% at age 67, or 124% at age 70. This means someone who waits longer receives significantly more money over time, though they receive fewer total payments.

Social Security Disability Insurance (SSDI) provides benefits to workers who have a serious medical condition expected to last at least 12 months or result in death. The person must also have earned enough work credits—typically 40 credits, though younger workers may need fewer. Workers who are deaf, blind, or have chronic conditions like heart disease, cancer, arthritis, or mental health conditions may receive SSDI. The amount of the monthly benefit is based on the worker's earnings history, similar to retirement benefits. A family member of a disabled worker—such as a spouse or child—may also receive benefits based on that worker's earnings record.

Survivor benefits are paid to family members of a worker who has died. These benefits can be paid to a spouse age 60 or older, a surviving spouse caring for a child under age 16, unmarried children under age 18 (or up to age 19 if in high school full-time), or a parent age 62 or older who depended on the worker for support. Each family member typically receives a percentage of the worker's benefit amount. If a worker had $2,000 in monthly retirement benefits, the family might share about $4,000 per month total, divided among eligible family members.

Practical takeaway: Social Security provides income based on work history through retirement benefits, disability benefits, or survivor benefits. The amount you receive depends on your age, earnings record, and which type of benefit you receive. Planning when to start benefits can significantly affect how much money you receive over your lifetime.

Understanding SSI: Rules, Income Limits, and Resource Limits

SSI is a needs-based program, which means the program focuses on financial need rather than work history. To understand whether someone might receive SSI, it is important to learn about income limits and resource limits. These limits determine who can receive benefits.

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Income is money received from any source, including wages from work, Social Security benefits, pensions, rent payments, unemployment benefits, and cash gifts. The SSA counts most income to determine SSI eligibility. However, some income is not counted. For example, the first $65 of earned income per month is not counted, and half of earnings above $65 are not counted (up to a limit). Certain in-kind support—such as food or shelter given to someone without charge—is also counted as income, though the rules are complex. As of 2024, the SSI income limit for an individual is approximately $943 per month. This means if someone receives more than about $943 per month in countable income, they cannot receive SSI. For a couple, the limit is about $1,415 per month.

Resources are things of value that someone owns, such as money in bank accounts, vehicles, or property. The SSA counts resources to determine SSI eligibility. The resource limit for an individual is $2,000, and for a couple, it is $3,000. This means someone can own up to $2,000 in countable resources and still receive SSI. A home that someone lives in and one vehicle used for transportation are not counted as resources. Some other items, like household items, clothing, and life insurance with a low face value, are also not counted. However, money in savings accounts, stocks, bonds, and extra vehicles do count toward the resource limit.

SSI recipients must report changes in income and resources to the SSA. If someone's income or resources exceed the limits, SSI benefits may be reduced or stop. Additionally, SSI is only available to U.S. citizens and certain non-citizens. The SSA has specific rules about who qualifies as a non-citizen and can receive SSI.

Practical takeaway: SSI has strict income and resource limits. If you have more than about $943 per month in countable income or more than $2,000 in countable resources as an individual, you likely will not receive SSI. Changes in income or resources must be reported to the SSA.

The Difference Between SSDI and SSI for Disabled People

People with disabilities may receive either SSDI, SSI, or both programs together. These programs have very different rules, and understanding the differences is essential for disabled individuals and their families. Many people confuse these programs because they both serve people with disabilities, but they operate on completely different principles.

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SSDI (Social Security Disability Insurance) is based on a work history. To receive SSDI, a person must have worked and paid Social Security taxes for enough quarters to earn the required 40 work credits. The amount of the monthly benefit depends on how much the person earned during their working years. Younger workers who become disabled may need fewer than 40 credits. For example, a worker age 24 who becomes disabled might need only 12 credits. Once SSDI benefits begin, there is no income limit or resource limit—a person can earn as much as they want from work and still receive SSDI (with some restrictions on earnings that trigger continuing disability reviews). There is also no limit on how many resources someone can own.

SSI is needs-based and does not require a work history. As discussed in the previous section, SSI has strict income and resource limits. Someone receiving SSI must have low income and limited resources. A person can be disabled but not receive SSI if their income or resources are above the limits. However, SSI can serve as a temporary safety