What Does OASDI Stand For?
OASDI stands for Old-Age, Survivors, and Disability Insurance. It is the official program name for Social Security — the federal insurance program established by the Social Security Act of 1935 and administered by the Social Security Administration (SSA). The three components of the name describe the three categories of people the program protects:
- Old-Age: Retirement benefits for workers who reach eligible ages (62 for early reduced benefits, 67 for full retirement age for those born after 1960, or 70 for maximized delayed credits)
- Survivors: Benefits paid to the spouse, children, and in some cases dependent parents of a worker who dies
- Disability: SSDI (Social Security Disability Insurance) benefits for workers who become severely disabled and are unable to work
On your paystub, OASDI may appear under several different labels depending on your employer's payroll system. Common variations include: OASDI, Soc Sec, Social Security, FICA-SS, Fed OASDI/EE, or SS Tax. All of these refer to the same deduction.
FICA vs. OASDI: FICA (Federal Insurance Contributions Act) is the law that authorizes both Social Security (OASDI) and Medicare taxes. When your paystub shows "FICA," it often means the combined Social Security + Medicare deduction. OASDI specifically refers only to the Social Security portion — not Medicare.
The 2026 OASDI Rate and Wage Base Cap
Employee Rate: 6.2%
The OASDI tax rate for employees is 6.2% of gross wages. This rate has been fixed at 6.2% since 1990 (it was temporarily reduced to 4.2% in 2011–2012 as a stimulus measure, but returned to 6.2% in 2013 and has remained there). Your employer matches your contribution dollar-for-dollar, paying an additional 6.2% on your behalf directly to the IRS — you never see this employer share on your paystub, but it is a real cost of employing you.
2026 Social Security Wage Base: $176,100
OASDI is not applied to your total annual earnings — it is only applied to wages up to the Social Security wage base, which is $176,100 for 2026. Once your cumulative wages for the calendar year reach $176,100, OASDI withholding stops for the rest of that year. This cap is adjusted annually by the SSA based on changes in the national average wage index.
| Annual Salary | Total Annual OASDI (Employee) | Month OASDI Stops | Effective Rate on Full Salary |
|---|---|---|---|
| $60,000 | $3,720 | Does not stop (below cap) | 6.20% |
| $100,000 | $6,200 | Does not stop (below cap) | 6.20% |
| $176,100 | $10,918.20 | Last paycheck of year | 6.20% |
| $200,000 | $10,918.20 | ~Early November | 5.46% |
| $300,000 | $10,918.20 | ~Early July | 3.64% |
| $500,000 | $10,918.20 | ~Mid-April | 2.18% |
For workers earning above the cap, the effective OASDI rate on total salary declines dramatically. A partner at a law firm or finance professional earning $500,000 pays the same dollar amount of OASDI as someone earning $200,000 — making it a regressive tax relative to total compensation at higher income levels.
When Does OASDI Stop Being Deducted?
Once your year-to-date wages from a single employer reach $176,100, your employer must stop withholding OASDI for the remainder of the calendar year. This is often described as workers "getting a raise" mid-year because their take-home pay increases by 6.2% on each paycheck once the cap is crossed.
If you work multiple jobs simultaneously, each employer withholds OASDI independently — they do not communicate with each other about your combined wages. This can result in over-withholding if your combined wages from multiple employers exceed $176,100 but no single employer reaches the cap on their own. The good news: if you overpay OASDI due to multiple employers, you can claim a credit for the excess withholding on your federal tax return (Form 1040, Schedule 3).
Multiple Jobs: If you hold two NYC jobs simultaneously and each pays $100,000 per year, your combined wages of $200,000 exceed the cap — but each employer withholds OASDI on the full $100,000, resulting in $12,400 total withholding instead of the correct $10,918.20. Claim the $1,481.80 overpayment as a credit when you file your federal return.
What Does OASDI Fund? What You're Actually Getting
Retirement Benefits
The "Old-Age" component of OASDI funds monthly retirement benefits for eligible workers. To qualify, you need at least 40 quarters of coverage (roughly 10 years of work in which you earned at least $1,810 per quarter in 2026). Your benefit amount is calculated using your highest 35 years of wage-indexed earnings — years with no earnings count as zeros, which is why working longer tends to increase benefits.
You can begin collecting Social Security retirement benefits as early as age 62, but at a permanently reduced rate. Full retirement age (FRA) is 67 for anyone born in 1960 or later. Delaying beyond FRA earns delayed retirement credits of 8% per year up to age 70. For a high-earning NYC professional, the difference between claiming at 62 versus 70 can amount to several hundred thousand dollars in lifetime benefits.
Survivor Benefits
If you die while insured (having paid sufficient OASDI), your surviving spouse, dependent children, and in some cases dependent parents may receive monthly survivor benefits. A surviving spouse can receive up to 100% of your benefit amount. Children under 18 (or up to 19 if still in high school) can each receive up to 75% of your benefit. This makes OASDI a form of life insurance in addition to retirement savings — often an underappreciated benefit for younger workers.
Disability Benefits (SSDI)
The "Disability" component funds SSDI — Social Security Disability Insurance. To qualify, you must have a severe medical condition expected to last at least 12 months or result in death, and you must be unable to perform any substantial gainful activity. SSDI is notoriously difficult to qualify for — roughly 65% of initial applications are denied — but it provides a critical income floor for workers who become permanently disabled.
How OASDI Builds Your Future Benefit: The Earnings Record
Every dollar of wages on which you pay OASDI is posted to your personal Social Security earnings record, maintained by the SSA. You can view your earnings record and estimated future benefits at ssa.gov by creating a my Social Security account. This is worth doing — errors on your earnings record (which do occur) can reduce your future benefit, and you have a limited window to correct them.
Your monthly retirement benefit is calculated using the Average Indexed Monthly Earnings (AIME) formula applied to your highest 35 years of indexed earnings. The AIME is then run through a progressive benefit formula that applies three "bend points" — percentages that replace a higher share of lower earnings than higher earnings. For 2026, the formula replaces 90% of the first $1,226 of AIME, 32% of AIME between $1,226 and $7,391, and 15% of AIME above $7,391. This means lower-income workers get a higher replacement rate, while higher-income workers get a lower percentage but still benefit from the program.
OASDI vs. Medicare: Understanding Both FICA Components
OASDI is one of two components of FICA (the Federal Insurance Contributions Act tax). The other is Medicare (formally called the Hospital Insurance tax, or HI). Together, they make up the total FICA burden on most employees:
| Tax | Employee Rate | Employer Rate | 2026 Wage Cap |
|---|---|---|---|
| OASDI (Social Security) | 6.2% | 6.2% | $176,100 |
| Medicare (HI) | 1.45% | 1.45% | No cap |
| Additional Medicare Tax | 0.9% | None | On wages above $200,000 |
| Total FICA (employee, below caps) | 7.65% | 7.65% | Varies |
Unlike OASDI, Medicare has no wage cap — it applies to all wages at 1.45%. Additionally, high-income earners pay an Additional Medicare Tax of 0.9% on wages above $200,000 (single filers) or $250,000 (married filing jointly). This additional tax is only on the employee side — there is no employer match.
NYC-Specific Considerations: How NY State and NYC Treat Social Security
Social Security Benefits Are Not Taxed by NY State or NYC
One of the most taxpayer-friendly features of New York State's tax code is that Social Security benefits are completely exempt from NY State income tax. This is a significant benefit for NYC retirees who collect Social Security — while they may owe federal income tax on up to 85% of their benefits (depending on combined income), New York State and New York City impose no tax on those same benefits.
This exemption is particularly valuable for retirees who remain in NYC after leaving the workforce. When planning retirement income, NYC residents should factor in that Social Security benefits will not be subject to the 3.876% NYC local tax or the NY State tax (up to 10.9% at high incomes) — potentially saving thousands of dollars annually compared to states that tax Social Security income.
OASDI Contributions Are Not Deductible
Unlike contributions to a 401(k) or HSA, your OASDI contributions are not tax-deductible. They are taken from your gross wages before federal income tax, but they are still subject to federal income tax — wait, actually the reverse: OASDI is collected on your gross wages, but those wages are still included in your federal taxable income. You do not get to deduct your OASDI contributions anywhere on your federal return. This is simply the cost of participation in the program.
OASDI for NYC Freelancers and Self-Employed Workers
If you work as a freelancer, independent contractor, or sole proprietor in New York City, OASDI works very differently from the employee experience. Instead of paying 6.2% with your employer covering another 6.2%, you pay both halves — a total of 12.4% in Social Security tax — as part of the self-employment (SE) tax calculated on Schedule SE of your federal return.
The Self-Employment Tax Burden
The combined SE tax rate is 15.3%: 12.4% for OASDI plus 2.9% for Medicare. (High-income self-employed workers also owe the Additional Medicare Tax of 0.9% on net earnings above $200,000.) For an NYC freelancer earning $100,000 in net self-employment income, the SE tax alone is $15,300 — before adding federal income tax, NY State income tax, and NYC local income tax.
The Deduction That Partially Offsets the Double Burden
To prevent self-employed workers from being fully taxed on the employer-equivalent half of SE tax, IRS rules allow you to deduct 50% of your total SE tax as an above-the-line deduction on your federal return (reported on Schedule 1, Line 15). This deduction reduces your federal adjusted gross income, which in turn reduces your NY State and NYC taxable income.
For a freelancer with $100,000 in net self-employment income: SE tax = $14,130 (calculated on 92.35% of net earnings per IRS rules). The above-the-line deduction is 50% × $14,130 = $7,065. This $7,065 deduction reduces federal AGI, saving roughly $1,555 in federal income tax (at 22%) and additional amounts in NY State and NYC tax.
Quarterly Estimated Taxes
Self-employed NYC workers must pay estimated taxes quarterly (due April 15, June 16, September 15, and January 15 of the following year) to cover both SE tax and income taxes. Failing to pay sufficient estimated taxes results in an underpayment penalty. Many NYC freelancers find it helpful to set aside 30%–40% of each payment received to cover the combined tax burden.
Social Security Wage Base History and Trends
The Social Security wage base has increased substantially over the decades as the SSA adjusts it annually for wage growth. Understanding the trend matters for financial planning, especially for workers near the cap:
| Year | SS Wage Base | Max Employee OASDI |
|---|---|---|
| 2020 | $137,700 | $8,537.40 |
| 2021 | $142,800 | $8,853.60 |
| 2022 | $147,000 | $9,114.00 |
| 2023 | $160,200 | $9,932.40 |
| 2024 | $168,600 | $10,453.20 |
| 2025 | $176,100 | $10,918.20 |
| 2026 | $176,100 | $10,918.20 |
The wage base has grown significantly — from $137,700 in 2020 to $176,100 in 2026, a 28% increase in six years. Workers who were comfortably above the cap several years ago may now find their entire salary subject to OASDI as the base has risen. For financial planning purposes, it is reasonable to expect the wage base to continue increasing each year alongside wage growth.
Frequently Asked Questions
What does OASDI stand for and what is the 2026 rate?
OASDI stands for Old-Age, Survivors, and Disability Insurance — the formal name for Social Security tax. The employee rate is 6.2% of gross wages. In 2026, it applies only to the first $176,100 of wages. Your employer also pays 6.2% on your behalf.
When does OASDI stop being deducted from my paycheck?
OASDI withholding stops once your year-to-date wages from a single employer reach $176,100 in 2026. For a $200,000 salary, this happens around early November. For $300,000, around early July. Once the cap is crossed, your take-home effectively increases by 6.2% for the rest of the year.
Are Social Security benefits taxed by New York State or NYC?
No — NY State does not tax Social Security benefits, and NYC follows the same rule. This is a meaningful advantage for NYC retirees. At the federal level, up to 85% of SS benefits can be taxable depending on your combined income.
How does OASDI work for NYC freelancers and self-employed workers?
Self-employed workers pay both the employee and employer shares of OASDI — 12.4% total — as part of self-employment tax. You can deduct the employer-equivalent half (6.2%) as an above-the-line federal deduction, which reduces your federal, NY State, and NYC taxable income.
Data Sources: OASDI rate and 2026 wage base per Social Security Administration. SE tax rules per IRS Publication 334. NY State SS benefit exemption per NY Department of Taxation and Finance. See full methodology →
Calculate Your NYC Take-Home Pay
See your OASDI, Medicare, federal, NY State, and NYC local tax calculated instantly based on your salary.
Use the Free Calculator →