Social Security Calculator

The U.S. Social Security website provides calculators for various purposes. While they are all useful, there currently isn’t a way to help determine the ideal (financially speaking) age at which a person between the ages of 62-70 should apply for their Social Security retirement benefits. This tool is designed specifically for this purpose. Please note that this calculator is intended for U.S. Social Security purposes only.

Determine the Ideal Application Age

Use the following calculation to determine the ideal age to apply for Social Security retirement benefits based on age, life expectancy, and average investment performance. Click here to estimate life expectancy.


Compare Two Application Ages

Use the following calculation to compare the financial difference between two Social Security retirement benefit application ages. The U.S. Social Security website provides estimated benefit payment amounts of different claim ages.

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The term “Social Security” is used in the U.S. to refer to the system that provides monetary assistance to people with inadequate or no income. The term can be better understood by thinking of it as the “financial security of society.” Although they may not go by the same name, there are many similar government systems in place throughout the world. This calculator is specifically intended for U.S. Social Security purposes.

Social Security in the U.S.

Before Social Security (SS), care for the elderly or disabled in the U.S. wasn’t a federal responsibility; if they weren’t cared for by family, it fell into the hands of municipality or states. This changed in 1935 when the Social Security Act (originally named the Economic Security Act) was first established in the U.S. by President Franklin Roosevelt. The first taxes were collected starting in January 1937, which enabled monetary assistance to qualified Americans with inadequate or no income. Originally, SS was just a program that paid out retirement benefits, but a 1939 change added survivors benefits for a retiree’s spouse and children. In addition, in 1956, disability benefits were added.

Today, SS in the U.S. plays a very important role in keeping a lot of older Americans out of poverty. For most Americans in retirement, it is their major source of income, and for a significant percentage, it is their only source of income, even though SS was never intended to be a full replacement of income. On average, SS pays lower wage earners higher relative benefits than higher wage earners. In addition, lower wage earners tend to pay less tax and are more likely to receive social insurance disability income and survivor benefits. SS is sometimes referred to as Old Age, Survivors, and Disability Insurance (OASDI).

Social Security Facts

  • About 169 million Americans pay SS taxes
  • About 65 million Americans collect monthly benefits, which is about 1 in 5 Americans
  • About one out of four families receive benefits from SS
  • More than three out of five SS beneficiaries rely on their benefits for more than half of their income, while one third rely on it for all of their income
  • The administrative costs of SS add up to roughly 1% of total expenditure from the Old-Age & Survivors Insurance and Disability Insurance trust funds

Cost-of-Living Adjustment*

SS benefits increase slightly from year-to-year as a result of the cost-of-living adjustment (COLA), a measure applied in order to account for inflation. COLA’s purpose is to ensure that the purchasing power of SS and Supplemental Security Income (SSI) is equivalent to previous years, even if inflation rises.

COLA’s calculation is based on the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), from the third quarter of the last year a COLA was determined, to the third quarter of the current year. If there is no increase from year-to-year, there is no COLA.

Social Security Tax

The program is mainly operated on a pay-as-you-go system, which means that today’s workforce pays the SS taxes, and the monthly income is distributed to today’s beneficiaries. Most funds come from employee/employer contributions that are withheld from paychecks in the form of payroll taxes, which are collected under the authority of the Federal Insurance Contributions Act (FICA), hence why they are often called FICA taxes. The Social Security Administration (SSA), which is the federal organization in charge of SS, levies a 12.4% tax on earnings, which is usually split in half between employee and employer (self-employed taxpayers will pay the full amount in the form of a self-employment tax).

The amount of tax a person has to pay is capped above a certain income level; in 2018, the cap is $128,400. Earnings above this level of income are not subject to social security tax. This means that regardless how much money a person earns, anyone who earns at least $128,400 will pay a maximum of $7,960.80 in 2018. This limit is subject to annual change in order to stay up-to-date with inflation.

FICA taxes also include a separate welfare program called Medicare, which is a federal health program for people aged 65 or older. Although payroll taxes account for roughly 90% of SS income, it is not the only source; SS also receives contributions from income taxes on benefits paid to higher-income recipients, and interest earned on reserves, which are held in trusts and invested into U.S. treasury bonds. These sources of revenue are pooled together and are distributed to people who qualify for benefits.

Income Tax on Benefits

Another way that SS generates revenue is by taxing the benefits of select people, a practice that was introduced in 1983. Whether or not SS benefits are taxable depends on income. If a person has forms of income other than SS in retirement, such as a 401(k), self-employment income, investment income from interest, dividends, or capital gains, annuity income, rental property, or an IRA, then it is likely that SS benefits will be taxed because these additional sources of retirement income will result in an annual income over the limits set by the SSA for tax free benefits. Roth IRA withdrawals do not apply when considering a person’s combined income in retirement.

Federal income tax rate on SS benefits is capped at 85% of the value of their benefits. Combined income is measured as the sum of adjusted gross income, nontaxable interest, and half of SS benefits. A single filer with combined income less than $25,000 (married filers: $32,000) within a calendar year will not have their SS benefits taxed for that year. Any amount equal to or above the stated values will be subject to a tax on the portion of benefits above the limit, at rates up to a maximum of 85%. In 2016 alone, this tax generated almost $33 billion in revenue.

Below is a breakdown of how FICA taxes are typically spent. Roughly, for every dollar contributed towards SS:

  • 72 cents go into a trust fund that pays monthly benefits to retirees and their families
  • 16 cents go towards disability benefits
  • 9 cents go towards survivor’s benefits
  • Less than 1 cent is used for administrative costs

Any income from tax dollars or interest on investments that is not to paid out as benefits gets loaned to the U.S. treasury, which invests the funds in federal bonds.

People exempt from paying social security tax:

  • Those who are disabled, dead, or are members of a religious group opposed to receiving Social Security benefits during retirement.
  • Some state and local employees whose employers provide their own public pension systems that operate similarly to SS. This allows employees to fund their employer’s plans instead
  • Nonresident aliens, such as international employees working in the U.S. or international students in the U.S. temporarily.
  • Students employed at the same school in which they are enrolled whose employment is contingent on continued enrollment.

Social Security for Retirement

The biggest determinant of retirement benefit amount is lifetime earnings, since the benefit is based largely on the average of a person’s 35 highest-earning years. Because the SS tax is regressive, in retirement, lower income earners will have a higher portion of their SS retirement benefits paid out in relation to their lifetime earnings than higher income earners. Another important determinant of benefit amount is the age at which a person applies for retirement benefits.

SS is designed to replace about 40% of the average American worker’s pre-retirement income. This value is dependent on each individual’s work history; higher income earners will receive larger SS checks than lower income earners, but the check will be a smaller percentage (compared to lower income earners) of their pre-retirement income. In 2017, SS paid $1,360 per month on average to retired workers, or $16,320 per year. SS is not intended to be a sole source of retirement income, and as such, it is advisable to have other forms of income in retirement. This can take the form of anything from rental property income to annuities, mutual funds, or even tax-shielded retirement plans such as a 401(k) and/or IRAs.

Full Retirement Age

Full Retirement Age (FRA), sometimes called normal retirement age, is the minimum age at which a person is entitled to full or unreduced retirement benefits from SS. Click here to see the full table. A person can receive retirement benefits before their FRA as early as age 62. However, the benefits will be reduced based on when a person chooses to receive their benefits relative to their FRA. While a person choosing to receive benefits prior to their FRA results in reduced benefits, delaying retirement past FRA results in delayed retirement credits, which increases SS benefits by a certain percentage, up until the age of 70. After 70, further delaying retirement no longer increases benefits (though it does not reduce them either). FRA is different when calculating a survivor’s benefit; the earliest a widow or widower can receive a survivor’s benefit is 60, and benefits do not increase if delayed past FRA.

Retirement Benefits While Working

Receiving retirement benefits while working is possible, but there are key rules to take note of. Workers that are younger than their FRA that also make more than a yearly earnings limit set by the SSA will have their benefits reduced. For every $2 earned above an annual limit, $1 is deducted from retirement benefits. However, as soon as FRA is reached, reduction of benefits will stop, no matter how much is earned.

When to Apply for Social Security Retirement Benefits

It is possible to apply for SS retirement benefits as early as 61 years and 9 months old, even though the earliest possible age to receive benefits is 62. This is because the SSA will only process an application a maximum of four months before benefits begin. When determining the ideal age to apply for SS retirement benefits, there are multiple factors that should be considered:

  • The immediate need for cash
  • Life expectancy
  • Current earned income
  • Marital status
  • Relative age, income and health of spouse

Given these factors, each individual needs to evaluate their unique situations to determine the ideal age to apply for benefits. A 62-year-old with no income that is struggling to make ends meet will probably find it beneficial to claim SS. In addition, if they don’t expect to live long, receiving benefits sooner rather than later should theoretically provide more income before death. A marriage in which one spouse was the high-earner but the second spouse, who is expected to live longer, didn’t earn as much in their working years, may want to hold off on applying until as late as possible. Not all people can wait until age 70 for maximum benefit payout. However, in general, people with adequate amounts in their savings who are in good health and have high life expectancies may find it more financially desirable to apply for benefits later in life (just not past the age of 70). It is possible to withdraw an application within 12 months of starting benefits provided that all of the received distributions are repaid. However, SSA only allows this reconsideration once.

Social Security Credits

Each year, a worker earns credits to become eligible for benefits after retirement. It is possible to earn a maximum of four credits per year, and the total number of credits required to be eligible for benefits is typically 40, but this can depend on when the application was filed and the type of benefit. At earliest, a person can earn enough credits to be eligible for benefits in 10 years of work.

In 2018, each credit is earned by earning $1,320 in taxable income, meaning that earning $5,280 is sufficient to acquire all four credits for the year. This amount is based on average yearly wage and typically increases each year. It is not possible to lose credits once they have been earned. Also, certain jobs that don’t require the payment of Social Security taxes cannot earn credits. This applies to state and local government workers who can choose to contribute to a different type of retirement plan. Also, anyone born in or before 1929 may have different rules regarding SS credits.

Receiving Retirement Benefits Outside of the U.S.

It is possible to receive SS income while living outside of the U.S., given that a person is eligible for benefits. SS checks can be deposited in a U.S. bank account, or in some cases, sent to a foreign country. However, Medicare benefits are only available in the U.S. and filing tax returns (and state tax returns where appropriate) is still mandatory, even for retirees living abroad. Depending on the country, SS benefits may be affected by its tax laws. The information above only applies to U.S. citizens; there are different rules for resident aliens and undocumented immigrants.

Social Security for the Disabled

People who are disabled, are dependents of retired or disabled workers, or are surviving spouses/children may also receive benefits. Note that this is supplementary information and that the Social Security Calculator only provides calculations for retirement benefits.

The SSA’s definition of disability refers to total disability, so partial or short-term disabilities are not qualified for benefits. Under the SSA’s rules, a person is disabled only if they meet all of the following conditions:

  • They cannot do work they did before
  • The SSA decides that they cannot adjust to other work because of their medical condition
  • The disability has lasted or is expected to last at least one year or to result in death

Benefits usually continue until beneficiaries are able to work again. Disability beneficiaries that reach full retirement age will have their benefits converted into retirement benefits, with the amount remaining the same. It is against the law to receive both disability and retirement benefits at the same time.

Social Security Disability Insurance

Qualifying for SS disability insurance (SSDI) requires medical eligibility that meets the SSA’s definition of disability. In general, SSDI benefits are only available to Americans with disabilities that interfere with basic work-related activities that make them unable to perform substantial gainful activity for at least one year. Most applications for SSDI are denied, partly because they do not meet these requirements. Qualified applicants will have to endure a five-month waiting period (that starts on the date the SSA says the claimant became disabled) for the first payment of benefits. A compassionate allowance is an exception that expedites SSDI for people with severe medical conditions that will certainly be judged to meet the SSA’s definition of disability. Keep in mind that SSDI benefits still require work credits; the amount required depends on the age at which the applicant becomes disabled, with younger workers requiring fewer credits. Credit requirements range from 6 to 40, but generally, 40 credits are required, 20 of which must be earned within the last 10 years, ending in the year that the person becomes disabled.

Supplemental Security Income

There is another form of SS disability insurance called Supplemental Security Income (SSI). The main difference between SSI and SSDI is in regards to eligibility. While the former is aimed at those who have contributed to SS through taxable income (and thus earned credits), SSI is intended for those with limited means who may not qualify for SSDI. Also, while SSDI benefits are funded using FICA taxes, SSI is funded through general taxes. SSI does not require work credits, as it is based on whether or not a person meets general income restrictions (one of which is $2,000 or less in cash or combined bank accounts). SSI can also be expedited by a compassionate allowance. In most states, disabled workers who receive benefits from SSI are also automatically eligible for Medicaid.

In some situations, it is possible to receive both SSDI and SSI. This usually happens when a qualified application for SSDI is granted low enough an SSDI benefit (either because of low wages or because the beneficiary did not work for a sufficient period of time) to make the applicant also eligible for SSI.

Social Security for Spouses and Survivors

Spousal benefits are available to current or widowed spouses aged 62 or older. Applications for spousal benefits are not valid until the other spouse files for their own benefits. It is possible for a non-working spouse to be eligible for a spousal benefit based on their working spouse’s benefit. Based on the working spouse’s age of retirement, the spousal benefit can be up to half of the working spouse’s benefit.

A widow or widower can collect a survivor benefit as early as age 60 given that the marriage lasted more than nine months. This requirement is waived if the widow or widower has a child under the age of 16. In the case where both individuals in a married couple are receiving SS benefits and one dies, the widow or widower can continue receiving their own benefit or their spouse’s, but not both. It is also possible for a widow or widower to switch benefits in retirement. For instance, if the deceased spouse was scheduled to receive larger benefit amounts at age 70, the widow or widower can first file for their own benefits, then claim their former spouse’s benefits later in order to maximize payments.

A person who is divorced, who was married for more than 10 years and has not remarried, can receive benefits based on their ex-spouse’s work history as long as the divorced person meets all of the following conditions:

  • unmarried
  • age 62 or older
  • their ex-spouse is entitled to SS retirement or disability benefits
  • their benefit based on their own work is less than what they would receive based on their ex-spouse’s work

The ex-spouse’s benefits can also be claimed even if the ex-spouse has not filed for their own benefits, as long as both parties are above age 62.

Extra Social Security Trivia

  • SS does not contribute to the national debt because by law it cannot borrow money. As a matter of fact, it is currently sitting on a surplus of more than 2 trillion dollars.
  • Although SS is currently at a surplus, unless Congress enacts large-scale change, it is expected to be exhausted by 2034 due to the declining ratio of workers to beneficiaries. Factors such as the retirement of the large population of Baby Boomers, longer life expectancies on average, and Americans having fewer children all contribute to this. Increasing taxes, cutting benefits, removing the contribution cap, and increasing the age at which people can collect benefits are ways in which SS could be extended.
  • It is possible to change any individual’s SS number, as long as they are able to prove that certain numbers conflict with religious or cultural beliefs with clear documentation.
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