The amount you receive depends on your work history, not your diagnosis

Social Security does not pay a set amount for epilepsy. Instead, your monthly check is based on how much you earned before you stopped working. Two people with the same seizure disorder can receive very different amounts—one might get $800 a month, another $2,200—because their prior earnings were different.

The Social Security Administration (SSA) calculates your benefit by taking your average earnings over your working years and applying a formula. The more you earned and paid into Social Security, the higher your benefit. If you never worked or worked very little, your payment will be lower. If you worked full-time for decades at higher wages, your payment will be higher.

The only exception is Supplemental Security Income (SSI), a separate program for people with very low income and assets. SSI pays a federal base amount that is the same for everyone who receives it—currently around $943 per month for an individual, though this amount changes yearly and varies by state. But SSI is not about your work history; it is about your current financial need.

Key Takeaways

  • Your Social Security Disability Insurance (SSDI) payment is based on your earnings record, not your diagnosis, so the amount varies widely from person to person.
  • You can find your estimated benefit amount by creating an account on ssa.gov and viewing your earnings record before you file.
  • If you have never worked or worked very little, you may be able to receive Supplemental Security Income (SSI) instead, which has a federal base rate that is the same for all recipients.
  • Your payment does not change based on how severe your seizures are; once you are approved, the amount stays the same unless your earnings record is corrected or you return to work.

How the Social Security Administration calculates your SSDI amount

The SSA uses your Social Security earnings record—the wages you reported over your entire working life—to calculate what is called your Primary Insurance Amount (PIA). This is the base number that determines your monthly check.

The calculation involves taking your highest 35 years of earnings, adjusting them for inflation, and then applying a formula with three "bend points." The bend points are dollar thresholds that change yearly. Earnings below the first bend point are replaced at a higher percentage; earnings between the first and second bend point at a lower percentage; and earnings above the second bend point at an even lower percentage. This means the formula replaces a larger share of lower earnings and a smaller share of higher earnings.

You do not need to understand the exact math. What matters is that you can see your own estimated benefit before you file. Go to ssa.gov, create a my Social Security account, and view your earnings record and benefit estimate. This shows you roughly what you would receive if you were approved today. The estimate updates yearly.

What happens if you have not worked much or at all

If you have worked but not enough to may have access to for SSDI—or if you have never worked—you may be able to receive Supplemental Security Income (SSI) instead. SSI is a needs-based program, not an earnings-based one. To receive it, your monthly income must be below a certain threshold (usually around $1,150 for an individual) and your countable assets must be below $2,000.

The federal SSI payment is currently around $943 per month for an individual living independently, though some states add extra money on top of the federal amount. A few states pay significantly more; others pay very little or nothing extra. You would need to check with your state's SSI program to know the exact amount you would receive.

SSI also covers Medicare or Medicaid depending on your state, which is often more valuable than the cash payment itself. If you are approved for SSDI, you become may be able to access for Medicare after two years. If you receive SSI, you usually get Medicaid right away.

When your payment amount changes

Once you are approved for SSDI, your monthly amount does not change because your seizures got worse or better. The SSA does not adjust payments based on severity. Your payment is locked to your earnings record.

Your payment does change in a few specific situations. Every year in January, all SSDI and SSI payments increase by a cost-of-living adjustment (COLA), a percentage that reflects inflation. In 2024, for example, the COLA was 3.2 percent, so all checks went up by that amount. The COLA is announced in October for the following year.

Your payment can also change if you return to work and earn above the Substantial Gainful Activity (SGA) threshold—currently $1,550 per month for non-blind individuals. If you earn more than that, you may lose your benefits. However, there are work incentives like the Trial Work Period that let you test returning to work without immediately losing your check.

The difference between SSDI and SSI payments

SSDI is based on your work history and your contributions to Social Security. There is no income or asset limit; you can have a million dollars in the bank and still receive SSDI if you are approved. Your family members may also be able to receive benefits on your record if they are your spouse, ex-spouse, or dependent children.

SSI is based on financial need. You must have low income and low assets to receive it. Your family members cannot receive benefits on your SSI record. But SSI can be easier to get approved for if you have not worked much, because it does not require a strong work history.

Some people receive both SSDI and SSI at the same time. This happens when your SSDI payment is very low—lower than the SSI federal base rate—and you meet SSI's income and asset limits. The SSI program then "tops up" your SSDI to bring you to the SSI level.

How to find out your specific amount before you file

The most accurate way to learn what you might receive is to check your own Social Security statement. Visit ssa.gov and create a my Social Security account using your Social Security number, email, and identity verification. Once you are logged in, you can see your earnings record and your estimated benefit amount at different ages.

The estimate assumes you stop working today and file at the age shown. If you file earlier, your payment will be lower. If you file later, your payment will be higher. The estimate also assumes you live to average life expectancy, so it is not a promise—it is a projection based on your current record.

If you do not have online access or prefer to speak with someone, you can call Social Security at 1-800-772-1213 (TTY 1-800-325-0778) and ask for a benefit estimate. You will need your Social Security number and date of birth. Wait times are often long, especially early in the week.

What to expect after you are approved

Once the SSA approves your claim, you will receive a notice showing your monthly benefit amount and your payment start date. Your first check usually arrives within a few weeks. Payments are deposited directly to your bank account or sent to a debit card if you do not have a bank account.

You will also receive information about Medicare (if you are on SSDI) or Medicaid (if you are on SSI or low-income SSDI). Make sure you enroll in Medicare Part B when you become may be able to access, even if you do not think you need it yet. There is a penalty for late enrollment that can follow you for life.

Every year, the SSA sends a notice showing your current benefit amount and any changes. Keep these notices. If you return to work, report your earnings to Social Security so they can calculate whether you are still within the work incentive limits.

Frequently Asked Questions

Can I get a higher disability check if my seizures are severe?

No. Once you are approved, your payment amount is based on your earnings record, not on how often you seize or how disabling your condition is. The SSA determines whether you are disabled or not (yes or no), but the amount you receive depends only on what you earned before you stopped working.

What if I worked part-time or had gaps in my work history?

The SSA uses your highest 35 years of earnings, so gaps do not disqualify you. If you worked part-time, those lower earnings are included in the calculation, which will lower your benefit compared to someone who worked full-time. You can see your own earnings record on ssa.gov to understand how much each year of work counts toward your benefit.

Does my state affect how much I receive?

For SSDI, no—the federal government pays the same amount regardless of where you live. For SSI, yes—some states add money on top of the federal base rate, and a few states add nothing. You would need to contact your state's SSI program to learn the exact amount you would receive.

What happens to my check if I get married or have a child?

Your own SSDI payment does not change. However, your spouse or dependent children may be able to receive benefits on your record. They would each get a percentage of your Primary Insurance Amount. Contact Social Security to report the change and ask whether family members are now may be able to access.

Can I work part-time and still receive my full disability check?

You can earn up to a certain amount without losing benefits. The limit is currently $1,550 per month for non-blind individuals. If you earn more than that, you may lose your benefits. However, there are work incentive programs like the Trial Work Period that let you test working without immediately losing your check. Contact Social Security before you start working to understand the rules.