2026 Social Security Wage Base
For 2026, the Social Security Wage Base is $184,500 (Wage base limit) and 6.2% (Employee social security tax rate).
Effective 2026-01-01Source: Topic no. 751, Social Security and Medicare withholding rates (IRS)Verified 2026-09-01
Compared with 2025
| Item | 2025 | 2026 | Change |
|---|---|---|---|
| Wage base limit | $176,100 | $184,500 | +$8,400 (+4.8%) |
| Employee social security tax rate | 6.2% | 6.2% | +0% (+0.0%) |
Who it applies to
Taxes under the Federal Insurance Contributions Act are composed of the old-age, survivors, and disability insurance taxes, also known as Social Security taxes, and the hospital insurance taxes, also known as Medicare taxes. Different rates apply to these taxes, and each is charged to the employer and to the employee. The wage base limit belongs to the Social Security part only, and for 2026 it caps at $184,500 the wages on which that tax is charged. Medicare tax has no wage base limit, so all covered wages are subject to it however high pay goes. Separately, an additional Medicare tax applies to an individual's Medicare wages above a threshold amount that depends on the taxpayer's filing status, and an employer withholds that tax on wages paid above the amount the IRS specifies without regard to filing status, with no employer match.
What changed this year, and why
For earnings in 2026, the Social Security wage base limit is $184,500. The wage base limit is the maximum wage that is subject to the tax for that year, and only the Social Security tax has one. Wages above $184,500 in 2026 are not subject to Social Security tax, while all covered wages remain subject to Medicare tax, which has no wage base limit at all. The limit is a per-year figure, so it starts again at the beginning of each calendar year rather than carrying a running total forward. The IRS also directs employers to the "What's New" section of Publication 15, Employer's Tax Guide, for the current wage limit for Social Security wages. The employee's share of the social security tax is 6.2% of wages up to that limit, and the employer is charged the same rate on the same wages.
Common questions
- What is the Social Security wage base for 2026?
- For earnings in 2026 the Social Security wage base limit is $184,500. The wage base limit is the maximum wage that is subject to the tax for that year, so earnings above $184,500 are not subject to Social Security tax. Only the Social Security tax has a wage base limit. The IRS also points employers to the "What's New" section of Publication 15 for the current wage limit.
- Is there a wage base limit for Medicare tax?
- No. There is no wage base limit for Medicare tax, and all covered wages are subject to it. That is the practical difference between the two halves of FICA: Social Security tax stops once wages for the year reach $184,500 in 2026, while Medicare tax carries on at every level of pay above that point, with no annual ceiling of its own.
- What taxes make up FICA?
- Taxes under the Federal Insurance Contributions Act are composed of the old-age, survivors, and disability insurance taxes, also known as Social Security taxes, and the hospital insurance taxes, also known as Medicare taxes. Different rates apply to these taxes, and each is charged to the employer and to the employee. Only the Social Security part is capped by a wage base limit.
- What happens once my wages pass the Social Security wage base limit?
- Social Security tax stops applying to your wages for the rest of the year once they reach $184,500 in 2026, because the wage base limit is the maximum wage subject to that tax for the year. Medicare tax does not stop, since it has no wage base limit and all covered wages are subject to it. The limit is set per year, so it applies again from the start of the next year.
- Does my employer stop paying Social Security tax above the limit too?
- Yes. The wage base limit caps the wages on which the tax is charged, and the employer and the employee each pay their own rate on those same capped wages, so neither pays Social Security tax above $184,500 for 2026. The employer's Medicare tax is not capped, because there is no wage base limit for Medicare tax and all covered wages are subject to it.
- What is the additional Medicare tax?
- It is a further tax on an individual's Medicare wages that exceed a threshold amount based on the taxpayer's filing status. The Social Security wage base limit does not touch it, because it belongs to the Medicare side rather than the Social Security side of FICA. There is no employer match for the additional Medicare tax. The Instructions for Form 8959 cover how it is reported.
- When does an employer start withholding the additional Medicare tax?
- In the pay period in which the employer pays wages above the amount the IRS specifies for withholding in a calendar year, and the employer continues to withhold it each pay period until the end of that calendar year. The withholding threshold takes no account of the employee's filing status, even though the tax itself is based on a threshold that does depend on filing status.
- Does the Social Security wage base change every year, and where is it published?
- It is stated for a given year of earnings, and the IRS gives $184,500 for earnings in 2026. Because it is tied to the year in which the earnings are paid, one year's figure does not carry into the next. The IRS publishes it in its tax topic on Social Security and Medicare withholding rates and refers employers to the "What's New" section of Publication 15, Employer's Tax Guide.
- What is the Social Security tax rate for 2026?
- The social security tax rate is 6.2% each for the employer and the employee, and for 2026 it is charged on wages up to the wage base limit of $184,500. Wages above that limit in the same year carry no further social security tax. Medicare tax is charged separately and has no wage base limit, so it keeps applying above $184,500.
Every amount on this page is a published figure rather than yours. The Social Security wage base headroom takes the number you enter and works it out against them, showing which published figure it used.
Only social security has a wage base
While both social security and Medicare taxes are payroll taxes, only social security has a cap on the wages subject to the tax. This cap is called the wage base limit, and it represents the maximum amount of an employee's wages that can be taxed for social security in a given year. Once an employee's cumulative wages for the year exceed this threshold, no further social security tax is owed on additional earnings. In contrast, Medicare tax applies to all covered wages without any upper limit, meaning every dollar of covered wages is subject to Medicare tax regardless of how much the employee earns. For 2026, the social security wage base limit is $184,500. Employers must determine the correct withholding amounts by multiplying each wage payment by the applicable employee tax rate until the limit is reached.
So- cial security and Medicare taxes have different rates and only the social security tax has a wage base limit. The wage base limit is the maximum wage subject to the tax for the year.
Publication 15 (2026), (Circular E), Employer's Tax Guide (IRS)
An acquisition does not restart the limit
When one business acquires another, the employees who came from the old employer may have already earned wages earlier in the same calendar year. Without a special rule, the new employer would start the social security wage base over at zero, causing the employee to pay social security tax on the first $184,500 of wages all over again. The successor employer rule prevents this double taxation by treating wages the predecessor paid as if the successor had paid them for the purpose of applying the annual wage base limit. In practice, the new employer only owes social security tax on the remaining balance up to $184,500 after subtracting what the employee already earned under the prior employer. The rule also applies to the $200,000 threshold for Additional Medicare Tax withholding. Employers in an acquisition should check whether they need to file Schedule D (Form 941) and should review Revenue Procedure 2004-53 for the specific conditions that must be met.
Successor employer. When corporate acquisitions meet certain requirements, wages paid by the predeces- sor are treated as if paid by the successor for purposes of applying the social security wage base limit and for apply- ing the Additional Medicare Tax withholding threshold (that is, $200,000 in a calendar year).
Publication 15 (2026), (Circular E), Employer's Tax Guide (IRS)
When the employer pays the employee's share
When an employer covers the employee's share of social security and Medicare taxes instead of withholding those amounts from wages, the IRS treats the tax payments as additional wages to the employee. That means the grossed-up amount — the tax payment itself — is subject to social security and Medicare taxes on top of the regular cash wages. In practice, each additional payment triggers more tax, which again increases wages and tax in a cascading effect, until the employee's total wages reach the annual wage base limit. For 2026, the social security wage base is $184,500, and the employee social security tax rate is 6.2%. The employer must account for this gross-up when computing withholding and payroll tax liability. Further guidance is available in Revenue Ruling 86-14 and IRS Publication 15-A.
Employee’s portion of taxes paid by employer. If you pay your employee’s social security and Medicare taxes without deducting them from the employee’s pay, you must include the amount of the payments in the employ- ee’s wages for social security and Medicare taxes. This in- crease in the employee’s wage payment for your payment of the employee’s social security and Medicare taxes is also subject to employee social security and Medicare taxes. This again increases the amount of the additional taxes that you must pay.
Publication 15 (2026), (Circular E), Employer's Tax Guide (IRS)
Household employers
An individual who performs household work in a private home, local college club, or local fraternity or sorority chapter is classified as a household employee. For social security and Medicare tax purposes, wages paid to household employees are subject to these taxes when the employer pays total cash wages of $3,000 or more during 2026. The household employee's wages are subject to the same annual wage base limit as other workers - $184,500 for 2026. This means social security tax applies only up to that limit during the calendar year, while Medicare tax continues to apply to all wages regardless of total amount. Income tax withholding for household employees is generally exempt unless both the employer and employee voluntarily agree to it. The household employer is responsible for withholding the employee's share and paying the employer's share of social security and Medicare taxes once the cash wage threshold is met.
Taxable if paid $3,000 or more in cash in 2026.
Publication 15 (2026), (Circular E), Employer's Tax Guide (IRS)
Who counts as an employee
The IRS determines whether someone who works for you is an employee based on common-law rules that focus on the degree of control and independence in the working relationship. Under these rules, anyone who meets the definition of a common-law employee is subject to social security and Medicare taxes, and their wages count toward the annual wage base limit of $184,500 for 2026. The classification depends on facts and circumstances rather than formal labels - even if a worker is called an independent contractor or agent, they may still be considered a common-law employee if the employer has the right to control what work is done and how it is done. Once the worker meets the common-law employee test, their wages are subject to social security tax up to the wage base limit and Medicare tax on all amounts. Employers must withhold the employee's share of these taxes and pay the employer's share on all wages paid to common-law employees.
If an employer-employee relationship exists, it doesn’t matter what it is called. The employee may be called an agent or independent contractor. It also doesn’t matter how payments are measured or paid, what they’re called, or if the employee works full or part time.
Publication 15 (2026), (Circular E), Employer's Tax Guide (IRS)
How each figure was verified
Each number below was read from a stored copy of the document named beside it, and checked to occur word for word in the quoted sentence. The digest is of that stored text.
Topic no. 751, Social Security and Medicare withholding rates (IRS)
- Wage base limit
For earnings in 2026, this base limit is $184,500.
- Employee social security tax rate
The current tax rate for Social Security is 6.2% for the employer and 6.2% for the employee, or 12.4% total.