The Windfall Elimination Provision, or WEP, reduces but does not eliminate some worker’s Social Security benefits. As of 2022, the maximum amount that a person might see their Social Security benefits reduced by because of the WEP is $512 per month.

Social Security Benefit Rules

Calculating the size of the WEP reduction for any specific person requires an understanding of how the government calculates a worker’s monthly Social Security retirement benefit. Generally speaking, Social Security benefits were designed to provide retirement income that replaces some, but not all, of a person’s earnings from their working years.

By design, the Social Security Administration’s formula is progressive: it replaces a higher share of earnings for low-income workers and a lower share of earnings for high-income workers. Social Security applies a formula to a worker’s average monthly “covered earnings.” This formula separates those covered earnings into three groups: a minimum level, a middle level, and a high-end level.[1] (These groups change annually based on growth in the cost of living.) The objective of this formula is to replace a different percentage of the workers average earnings from each of the three groups.

The standard formula for most workers is:

It relatively easy to apply this formula. For a hypothetical worker with average monthly covered earnings of $3,000, the monthly benefit is:[1]

  • 90% of the first $1,024 in earnings, which is $921.60, plus
  • 32% of the remaining $1,976 in earnings, which is $632.32

That totals a $1,553.92 monthly Social Security benefit.

The worker’s actual benefit would be lower if they retired before the normal retirement age (based on their birth year), and the benefit would be higher if they delayed retirement past the age that they can technically start claiming benefits.


WEP Benefit

The WEP modifies the Social Security benefit formula for workers who meet the pension and covered earnings criteria. It reduces the initial 90% replacement rate for the first “earnings group,” (i.e., the minimum level of earnings, which in 2022 is up to $1,024). The reduction amount ranges depending on the years an individual has worked, changing the replacement rate factor in that first earnings group to as much as 85% or as little as 40%.

Specifically, the exact replacement rate for the minimum level of earnings under the WEP depends on how many years of “substantial earnings” the worker received from covered employment. The more years the worker has accumulated while in covered employment with wages above that substantial earnings threshold, the less the replacement rate will be reduced.

If a worker has 30 or more years, there is no reduction, and the standard Social Security benefit formula applies. For other workers, there is a sliding scale, shown in Table 1.

The formula for workers affected by the WEP is:

Again, the specific replacement rate number included in the first earnings group ranges between 40% and 85% and is dependent on how many years a work has earned substantial earnings (see Table 1).

The reason that Congress has taken this approach to adjusting benefits is based on the idea that the more a worker has contributed into Social Security through their tax contributions and the more time they have spent in a job with a participating employer, the less those benefits should be reduced.


WEP Benefit Reduction Examples

To understand how the WEP alters Social Security benefits, consider a hypothetical public school teacher.

Example 1: A teacher earned a pension from a school district that did not participate in Social Security. Thus, she meets the pension criteria. This teacher also worked in the private sector for twelve years, with some years before and after her teaching career. The average monthly “covered earnings” from her private sector work is $2,000. Thus, the teacher qualifies for Social Security and meets the covered earnings criteria. The WEP applies to her Social Security benefits.

Example 2: A worker starts her career teaching at a school district that did not participate in Social Security but leaves the classroom after four years, before vesting in any pension benefit. Thus, she does not meet the first criteria and the WEP will not apply. She spends the rest of her career in the private sector (not necessarily always related to the education field) and the average monthly “covered earnings” from that work is $2,000.

The “worker” in Example 2 has $512 more per month than the “teacher,” even though they had the same average monthly covered earnings.

  • The argument for this WEP policy is that the teacher will also have their pension benefit, so they don’t need as much from the Social Security program. The worker will also have spent more years contributing money into Social Security than the teacher.
  • The argument against the WEP policy is that the teacher paid into Social Security and earned their benefit. The pension benefit may or may not be large enough to cover the $512 per month reduction in Social Security checks.

As a practical matter, a teacher who spends their full career in education and earns a pension with 30 years or more of service, will almost certainly have a larger pension benefit than $512.[1] But the Social Security WEP formula does not take into account the actual amount that a pension benefit provides, so the specifics on whether the WEP’s logic are unreasonable will vary from person to person.

Learn more about the Windfall Elimination Provision here.


[1] A typical pension benefit has a 2% multiplier. If a teacher had a final average salary of $65,000 after 30 years of service, they’d earn a $39,000 a year benefit, or $3,250 a month.
[1] Note: these earnings levels are determined on a pre-tax basis.
[1] Formally, the three earnings groups are separated by what Social Security calls “bend points.”