The average SSDI payment in 2018 was $1,182 per month

In 2018, the average Social Security Disability Insurance (SSDI) payment was $1,182 monthly. This figure represents the middle point across all beneficiaries receiving SSDI that year — some received less, some more, depending on their work history and the age at which they became disabled. The amount you would have received in 2018 depended entirely on your own earnings record, not on a fixed schedule or category.

SSDI payments are calculated using a formula based on your Primary Insurance Amount (PIA), which itself is based on your average indexed monthly earnings from your work history. The Social Security Administration (SSA) applies a benefit formula that replaces a higher percentage of lower earnings and a lower percentage of higher earnings — this is why two people with the same disability can receive very different monthly amounts.

Key Takeaways

  • The 2018 average SSDI payment of $1,182 per month was a middle point; individual payments ranged from under $800 to over $3,000 depending on work history.
  • Your 2018 SSDI payment amount was determined by your Primary Insurance Amount, which is calculated from your lifetime earnings record, not by your disability type.
  • SSDI payments increased by 2 percent in 2018 due to a cost-of-living adjustment (COLA), the first increase since 2016.
  • Workers who became disabled at younger ages typically received lower payments because they had fewer years of earnings to average into their calculation.
  • The maximum SSDI payment in 2018 was $2,788 per month for workers at or near the earnings cap throughout their careers.

How the 2018 payment was calculated from your work record

Your SSDI payment in 2018 was not based on how disabled you were or what your medical condition was. Instead, SSA looked at your Social Security earnings record — the wages you had paid Social Security taxes on throughout your working years. The agency indexed your highest 35 years of earnings to account for wage growth over time, then averaged them to produce your Primary Insurance Amount.

If you had fewer than 35 years of earnings, SSA counted zeros for the missing years, which lowered your average. This is why someone who worked for 20 years before becoming disabled would receive a lower payment than someone with 35 years of work history at similar wage levels. The formula itself was progressive: it replaced about 90 percent of the first $885 of your average monthly earnings, 32 percent of earnings between $885 and $5,336, and 15 percent of earnings above $5,336 (these bend points were specific to 2018).

The 2018 cost-of-living adjustment and why it mattered

In December 2017, SSA announced a 2 percent cost-of-living adjustment (COLA) for 2018. This meant that every SSDI beneficiary's payment increased by 2 percent starting in January 2018. For someone receiving $1,000 per month in 2017, that meant a $20 increase to $1,020 in 2018. The 2 percent COLA was significant because there had been no COLA in 2016 or 2017 — the first time since the 1980s that beneficiaries had gone two consecutive years without an increase.

The COLA is tied to the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W), which measures inflation. When inflation is low or negative, the COLA can be zero or very small. In 2018, inflation had recovered enough to produce a 2 percent adjustment, which was modest but welcomed after the freeze years.

Variation by age and work history in 2018

A worker who became disabled at age 25 in 2018 would have received a much lower payment than a worker who became disabled at age 55, even if both had worked steadily. The younger worker had fewer years of earnings to average, and the formula counts zeros for years before you entered the workforce. Additionally, if you had taken time out of the workforce — for caregiving, unemployment, or other reasons — those years also counted as zeros in the average, reducing your payment.

Workers who had earned at or near the Social Security wage base throughout their careers (the wage base was $128,400 in 2018) received the highest payments. In 2018, the maximum SSDI payment was $2,788 per month. This applied only to workers with very high lifetime earnings who became disabled at or near full retirement age. A worker with the same high earnings who became disabled at 35 would receive less, because the formula applies a reduction factor for early disability.

How 2018 payments compared to other years

The 2018 average of $1,182 was slightly higher than 2017 due to the 2 percent COLA. In 2019, the average rose to $1,234 following a 1.6 percent COLA. Looking backward, the 2018 average was higher than 2015 ($1,165) and 2016 ($1,166), the years with no COLA. The year-to-year changes were small because they were driven entirely by the annual COLA, not by changes in who was receiving SSDI or how the formula worked.

The word "average" masks real variation. In 2018, some beneficiaries received under $800 per month — typically younger workers or those with interrupted work histories — while others received close to the maximum. The median payment (the point where half received more and half less) was lower than the average, suggesting that the distribution was skewed toward lower payments, with a smaller number of higher payments pulling the average up.

Why your individual 2018 payment differed from the average

If you were receiving SSDI in 2018, your actual payment depended on your specific earnings record. You could find your own 2018 payment amount on your Social Security Statement, which you could request from SSA or view online through your my Social Security account. Your payment was not affected by your diagnosis, your age when you became disabled (except through the formula's reduction factors), or how many other people were receiving benefits.

The only way to know what you received in 2018 is to look at your own record. SSA's online records show your payment history month by month, and you can compare your 2018 payments to other years to see how the COLA affected your benefit.

Frequently Asked Questions

Why was the average SSDI payment in 2018 only $1,182 when the maximum was $2,788?

The average is pulled down by the large number of beneficiaries with lower payments due to shorter work histories, lower lifetime earnings, or both. Most SSDI beneficiaries became disabled before reaching peak earning years, so their average indexed monthly earnings were lower than someone who worked until full retirement age at high wages.

Did everyone receiving SSDI in 2018 get the 2 percent increase?

Yes. Every SSDI beneficiary on the rolls in January 2018 received the 2 percent COLA increase automatically. You did not have to do anything or reapply. The increase appeared in your January 2018 payment.

How was the 2018 average different from today's average?

The average SSDI payment has increased each year since 2018 due to annual COLAs. The 2024 average is significantly higher, though the exact figure varies by source and timing. You can find the current average on the Social Security Administration's website or in their annual statistical reports.

If I became disabled in 2018, would my payment have been close to the average?

Probably not. The average includes people who had been working and paying into Social Security for 30 or 40 years. If you became disabled in 2018, you likely had fewer years of earnings, so your payment would have been below the average unless you had very high lifetime earnings.

Can I see what my actual 2018 SSDI payment was?

Yes. Log into your my Social Security account at ssa.gov, or call Social Security at 1-800-772-1213 to request a detailed payment history. Your Social Security Statement also shows your benefit amount for any year you received SSDI.