How can I calculate my Social Security disability benefits?
Use this interactive calculator to estimate your monthly SSDI benefit using the standard Primary Insurance Amount formula, then apply a workers’ compensation offset, project a family maximum, and compare your work income against the annual Substantial Gainful Activity guideline.
Disability Benefits Calculator
Expert guide: how can I calculate my Social Security disability benefits?
If you are asking, “how can I calculate my Social Security disability benefits,” the short answer is that Social Security Disability Insurance, or SSDI, is generally based on your work history and your covered earnings, not on the severity label of your medical condition alone. The Social Security Administration first decides whether you qualify medically and vocationally. If you do, your monthly benefit is usually derived from the same core formula used for retirement benefits: your lifetime covered wages are indexed, your highest earning years are used to build your Average Indexed Monthly Earnings, and then a formula with annual bend points converts that figure into your Primary Insurance Amount, often called your PIA.
That sounds technical, but the process becomes much easier when you break it into steps. The calculator above focuses on the most practical planning questions: What is your estimated monthly SSDI benefit, how much might a workers’ compensation offset reduce it, and what could your household receive if dependents are entitled on your record? Understanding those moving parts can help you set a more realistic budget while waiting for a claim decision, reconsideration, hearing, or continuing disability review.
The key idea: SSDI is insurance based on your taxable Social Security earnings. In most cases, your estimated benefit starts with your AIME, then the SSA formula applies percentage factors to slices of that AIME. For 2024 and 2025, the bend points changed, which means the same worker could see a slightly different estimate depending on the year of entitlement and annual indexing rules.
Step 1: Confirm that you are looking at SSDI, not SSI
Many people mix up SSDI and Supplemental Security Income, or SSI. That matters because the benefit calculations are very different. SSDI is based on your own earnings record and work credits. SSI is a need-based program with strict income and asset rules. If you have enough recent work credits and paid Social Security taxes, you may be eligible for SSDI. If your work history is limited and your resources are low, SSI may be the program that applies instead, or you could receive a concurrent benefit in some cases.
- SSDI: based on insured status and your past covered earnings.
- SSI: based on financial need, not your wage history.
- Concurrent cases: sometimes both programs interact, which can change the final monthly amount.
Step 2: Find your earnings record and estimate your AIME
The most important number in an SSDI estimate is your AIME, or Average Indexed Monthly Earnings. Social Security takes your covered earnings over time, adjusts many of those past wages for wage growth in the national economy, and then averages the highest years under its rules. The result is turned into a monthly average. That number is what the disability formula uses.
For most people, the easiest way to get close is to review your earnings history in your Social Security account and look at your covered earnings year by year. If you already know your AIME from an SSA notice, use that number. If you do not, an estimate based on your record can still be useful for planning, especially when you want a rough monthly benefit range.
- Log in to your Social Security account and review your earnings record.
- Verify that all years of work appear correctly.
- Identify whether your jobs were covered by Social Security taxes.
- Estimate your AIME or use a prior SSA statement if you have one.
- Enter the AIME into the calculator above.
Step 3: Apply the bend point formula to calculate your PIA
Once you have your AIME, SSDI calculations become more mechanical. Social Security applies percentage rates to portions of your AIME. The first slice gets the highest percentage, the second slice gets a lower percentage, and earnings above the second bend point get the lowest percentage. This design replaces a larger share of earnings for lower wage workers and a smaller share of very high earnings.
The calculator above uses this standard framework:
- 90% of the first bend-point segment of AIME
- 32% of the AIME amount between the first and second bend points
- 15% of the AIME amount above the second bend point
That total becomes your estimated Primary Insurance Amount. In plain English, your PIA is the baseline monthly SSDI benefit before many deductions or offsets. If you have no workers’ compensation offset and no other special issue applies, your payable monthly SSDI often ends up close to that PIA.
| Formula element | 2024 estimate | 2025 estimate | Why it matters |
|---|---|---|---|
| First bend point | $1,174 | $1,226 | The first portion of AIME receives the 90% replacement rate. |
| Second bend point | $7,078 | $7,391 | The middle portion of AIME receives the 32% rate up to this level. |
| Above second bend point | 15% | 15% | Higher AIME amounts still count, but at a lower replacement percentage. |
Step 4: Check whether a workers’ compensation offset applies
Some claimants receive SSDI and also receive workers’ compensation or another public disability benefit. In many situations, the combined total cannot exceed 80% of what SSA considers your average current earnings. If the combined amount is too high, Social Security may reduce the SSDI portion. That is why the calculator includes fields for your monthly workers’ compensation amount and your Average Current Earnings, or ACE.
Here is the practical logic:
- Estimate your PIA from your AIME.
- Add your monthly workers’ compensation or public disability benefit.
- Calculate 80% of your ACE.
- If the combined total is greater than 80% of ACE, the excess is an estimated offset.
- Subtract that offset from the SSDI estimate to get a payable amount.
This step matters because many people calculate a promising SSDI estimate and then feel blindsided when the payable number is lower. The reduction is not random. It usually comes from an offset rule that limits overlapping public disability payments.
Step 5: Understand family maximum benefits
Your own SSDI check is not automatically larger because you have children or a spouse. However, certain dependents may qualify for auxiliary benefits on your work record. Total family benefits are usually limited by a family maximum. For SSDI, the full household amount commonly falls somewhere around 150% to 180% of the disabled worker’s benefit, although exact cases vary. The calculator above lets you choose an estimated family maximum factor so you can plan for the possibility of dependent benefits without treating the estimate as an official award amount.
If you have one or more eligible dependents, the calculator estimates:
- Your payable SSDI after any offset
- An estimated family maximum for the record
- The approximate amount that may be available for auxiliaries in total
That can be especially useful if you are trying to evaluate a household budget after a long claim process.
Step 6: Compare your earned income with SGA
Another common question is whether working will affect disability benefits. The answer depends on your claim stage and the type of work activity involved, but the Substantial Gainful Activity guideline is one of the most important screening benchmarks. The calculator above compares your entered monthly earned income with the annual non-blind SGA amount for the selected year. This does not decide your case by itself, but it is a useful warning indicator.
| SSA benchmark | 2024 figure | 2025 figure | Planning use |
|---|---|---|---|
| Non-blind SGA | $1,550 per month | $1,620 per month | General work activity screen for disability claims and continuing eligibility issues. |
| Trial Work Period month | $1,110 per month | $1,160 per month | Helps identify a Trial Work Period service month for many beneficiaries already on SSDI. |
| Maximum SSDI benefit | $3,822 per month | About $4,018 per month | Shows that even very high earners face a program maximum. |
| Average disabled worker benefit | About $1,537 per month | Varies with COLA and current SSA data | Useful for context when comparing your estimate with a national average. |
How the calculator above works in plain language
The calculator uses a straightforward method that mirrors the core SSDI benefit formula. First, it takes your AIME and breaks it into three portions based on the selected year’s bend points. Second, it multiplies each portion by the applicable replacement percentage. Third, it adds those portions together to estimate your PIA. Fourth, if you entered workers’ compensation or a public disability benefit, it compares your combined total with 80% of your ACE and reduces your SSDI estimate if needed. Finally, it shows an annualized benefit, a household estimate, and an earnings note tied to SGA.
The chart visualizes the result so you can see where your benefit is coming from. Many users find it easier to understand SSDI when they can see how much of their estimated monthly amount comes from the 90% tier, the 32% tier, the 15% tier, and any offset.
Common mistakes people make when estimating SSDI
- Using gross salary instead of AIME: the formula uses indexed covered earnings, not just current pay.
- Ignoring missing earnings years: an incorrect earnings record can materially change your estimate.
- Confusing eligibility with payment amount: proving disability and calculating the payment are separate issues.
- Forgetting offset rules: workers’ compensation and some public disability benefits can reduce SSDI.
- Assuming dependents increase the worker’s own check: dependent benefits are separate and subject to family maximum rules.
- Relying on outdated thresholds: bend points, SGA, and other benchmarks can change each year.
What documents help you calculate more accurately?
The closer your inputs are to SSA’s own records, the better your estimate will be. Before using any calculator, gather the following:
- Your Social Security earnings statement or online account summary
- Any prior SSA disability estimate or award notice
- Information about workers’ compensation or public disability benefits
- Your current work income, if any
- Household details if you may have eligible dependents
If you are not sure about your AIME, you can still use the calculator in a planning mode. Try entering a few possible AIME amounts, such as a low, medium, and high case. That will give you a benefit range rather than a single point estimate.
Where to verify official SSDI rules and figures
For official details, always check current Social Security sources. These pages are especially useful:
- Social Security Administration disability benefits overview
- SSA bend points and formula factors
- SSA annual statistical report on the disability insurance program
Final takeaway
So, how can you calculate your Social Security disability benefits? Start by confirming that you are dealing with SSDI, gather your earnings record, estimate your AIME, apply the bend-point formula to arrive at your PIA, and then adjust for any workers’ compensation or public disability offset. After that, review dependent benefit possibilities and compare any current earnings against the year’s SGA benchmark. That sequence gives you a much more realistic estimate than guessing from your current salary or using an average national benefit figure.
The calculator on this page is designed to make that process practical. It will not replace an official Social Security determination, but it can help you understand the structure of SSDI and build a more informed monthly budget. If your case includes unusual facts, such as a government pension, concurrent SSI, non-covered earnings, or a complicated onset date, consider using the calculator as a starting point and then confirming the details with SSA or a qualified representative.