Disability Amount Calculator
Short-term disability insurance pays a slice of your paycheck while you recover, but the benefit letter rarely shows its math. Most plans pay a percentage of your weekly wage, cap the weekly check at a policy maximum, and stop after a set number of weeks. Knowing those three numbers lets you estimate the check before it arrives.
The calculator below reproduces that exact wage-replacement math. Enter your wage (weekly, monthly, or annual), the benefit percentage, your plan’s weekly maximum if it has one, how many weeks benefits run, and any waiting period. You get your weekly payment, your total payout, and your effective replacement rate. It estimates private and state short-term disability style plans only; Social Security disability (SSDI and SSI) uses a different government formula based on your lifetime earnings record, and this tool does not compute it.
Estimates a wage-replacement style benefit (private or state short-term disability). It does not compute Social Security (SSDI/SSI) or tax-credit amounts, which use different government formulas.
Quick Answer
How the calculation works
Benefits are quoted weekly even when your pay is not, so the tool converts first: a monthly wage is multiplied by 12 and divided by 52, and an annual wage is divided by 52. The three rows below all describe the same pay, and all three produce the same $720 weekly benefit at 60 percent with no cap.
| How you enter it | Wage entered | Weekly wage used | Weekly benefit at 60% |
|---|---|---|---|
| Weekly | $1,200 | $1,200.00 | $720.00 |
| Monthly | $5,200 | $1,200.00 | $720.00 |
| Annual | $62,400 | $1,200.00 | $720.00 |
Three behaviors of the tool are worth knowing before you rely on the output. First, a benefit percent above 100 is treated as 100, because no wage-replacement plan pays more than the wage. Second, duration and waiting period are whole weeks: if you type 26.9 weeks, the tool uses 26. Third, if the waiting period is longer than the duration, paid weeks floor at zero and the total is $0.00, which is the tool telling you the plan would end before it ever paid. If your wage is normally discussed as an annual salary and you want it broken down the other way, the annual income to hourly calculator converts the same salary into hourly and weekly figures you can cross-check against the wage you enter here.
Worked example: $1,000 a week on a 60% plan
The calculator is pre-filled with the most common short-term disability setup found in employer plans: a $1,000 weekly wage, 60 percent replacement, an $800 weekly maximum, 26 weeks of benefits, and a 1 week waiting period.
The raw percentage math gives $1,000 × 60 / 100 = $600, which sits under the $800 cap, so the check is the full $600. The waiting week is unpaid, leaving 25 paid weeks, and $600 × 25 = $15,000. While you are out, your weekly income looks like this:
That $400 weekly gap is the number to plan around with savings, sick days, or a partner’s income. It also helps to compare the $600 benefit against what usually lands in your bank account, since benefits and wages are taxed differently depending on who paid the premium; the daily net pay calculator shows the take-home side of a normal paycheck for that comparison.
Where estimates go wrong: the cap and the waiting period
Two plan features do almost all the damage to naive estimates, and both are easy to miss in a benefits booklet. The first is the weekly maximum. A percentage sounds generous until the cap converts it into a flat amount, and the cap bites sooner than most people expect: at 60 percent, any weekly wage above $1,333.33 already exceeds an $800 cap.
| Weekly wage | 60% of wage | Weekly check after $800 cap | Total over 25 paid weeks | True replacement rate |
|---|---|---|---|---|
| $1,000 | $600 | $600.00 | $15,000.00 | 60.0% |
| $1,500 | $900 | $800.00 | $20,000.00 | 53.3% |
| $2,000 | $1,200 | $800.00 | $20,000.00 | 40.0% |
| $3,000 | $1,800 | $800.00 | $20,000.00 | 26.7% |
Read the last two rows together: tripling the wage from $1,000 to $3,000 raises the total payout only from $15,000 to $20,000, because the cap, not the percentage, is in charge. The result badge in the calculator turns amber whenever this happens, so a capped estimate never looks like a full-percentage one. The second trap is quieter: the waiting period. Benefits do not start on day one. A 1 week wait on a 26 week plan is a 4 percent cut to the total before anything else happens, and a 2 week wait doubles that. Plans describe the same idea as an elimination period, sometimes in days (7 or 14 days is common) rather than weeks; divide days by 7 and round to whole weeks to match this tool.
What this calculator does not estimate
The name “disability amount” covers several different programs, and they do not share one formula. This tool computes exactly one of them: the wage-replacement math used by private short-term disability policies and, in simplified form, by state temporary disability plans. Being clear about the boundary matters more than false precision.
Private and state wage-replacement plans: estimated here
A percentage of your current wage, a weekly cap, a fixed duration, and a waiting period. That is the math above. State programs add their own twists: California SDI, for 2026 claims, pays 70 to 90 percent of weekly wages from your highest-paid base-period quarter, up to $1,765 per week for up to 52 weeks, after a 7 day wait. Because it uses past earnings rather than your current wage, treat this tool as a close approximation for a state claim, not the official figure.
SSDI and SSI: not estimated here
Social Security Disability Insurance pays a monthly amount built from your lifetime earnings record, averaged and indexed (the AIME) and run through a tiered formula (the PIA), not a percentage of your current paycheck. Supplemental Security Income is needs-based instead. Neither has a benefit percent, a weekly cap, or a waiting period you can type into this form, so any tool that estimates SSDI from your current salary and a percentage is guessing. People moving between benefit systems also meet a separate counting concept, deemed income, which decides how much of another household member’s income counts against a claim.
Two more real-world adjustments sit outside the tool. Many policies reduce benefits by other income you receive during the claim, such as workers’ compensation or a state benefit, which is called an offset; the tool does not subtract offsets because they vary policy by policy. And the estimate is pre-tax: as the IRS rules on disability payments are usually summarized, benefits are taxable income when your employer paid the premiums, and generally tax-free when you paid the premiums yourself with after-tax dollars. Neither adjustment changes the plan math itself, but both change what you keep.
Disclaimer: this calculator is an educational estimate based on the plan terms you enter. It is not insurance, legal, or tax advice, and your insurer’s claim decision follows your actual policy wording. Confirm the benefit percent, cap, duration, and waiting period in your plan documents before relying on the total.
What competing calculators miss
The short-term disability tools and guides ranking for this term mostly answer an easier question than the one claimants actually have. Three gaps kept showing up.
Gap 1: percentage only, no cap, no total. The simplest guides multiply salary by a percentage and stop. That number is wrong for anyone whose plan has a weekly maximum, which is most group plans, and it says nothing about the total you will receive across the claim, which is the figure a household budget actually needs.
Gap 2: a waiting period that is collected but not applied. At least one ranking calculator asks for a waiting period and then, in its own worked example for a higher earner, multiplies the weekly benefit by the full 26 weeks anyway, quietly paying the reader for the two waiting weeks the plan would never pay. Here the waiting period is subtracted before the total is computed, and the result line names the paid weeks (25, not 26) so the arithmetic can be checked at a glance.
Gap 3: premium math wearing a benefit costume. Several top results for this search are really premium calculators: they price the cost of coverage per $100 of benefit rather than estimating the benefit itself. Useful when you are shopping for a policy, useless when a claim letter is on the table. This page stays on the claim side: wage in, check and total out, with the effective replacement rate shown because that is the number that exposes a cap.
Frequently Asked Questions
The payment you receive while unable to work due to illness or injury, usually a weekly check for a fixed number of weeks. Most plans replace 50 to 70 percent of wages.
Your weekly wage multiplied by the benefit percent, reduced to the plan’s maximum weekly benefit if one applies. A $1,000 weekly wage at 60 percent gives $600 per week.
It limits the weekly check. At 60 percent with an $800 cap, anyone earning over $1,333 per week receives $800, not the full percentage.
Also called an elimination period: the weeks at the start of a disability during which no benefits are paid. A 1-week wait on a 26-week plan means 25 paid weeks.
No. SSDI and SSI use SSA formulas based on your lifetime earnings record. This tool estimates private or state wage-replacement plans.
It depends who pays the premium. Employer-paid benefits are generally taxable; benefits from policies you paid for with after-tax dollars are usually tax-free. State rules vary.
The policy maximum capped your weekly check. The tool tells you when the cap applied.
Short-term plans commonly run 13 to 26 weeks; long-term plans can run for years. Enter your plan’s duration in weeks.
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References
- State of Tennessee, Benefits Administration, “What is the Short-term Disability Benefit, and What Amount Will I Receive?” – a real state plan’s published terms: 60 percent of pre-disability salary, a $2,500 weekly maximum, 26 weeks, and a 14 or 30 day elimination period, with a worked example ($65,000 / 52 × 60% = $750 per week). Tennessee Benefits Administration: Short-Term Disability Benefit. Accessed October 2026.
- Triage Cancer, “State Disability Insurance Quick Guide” – a nonprofit survey of the state temporary disability programs (California, Hawaii, New Jersey, New York, Puerto Rico, Rhode Island), including California’s 70 to 90 percent rates, $1,765 weekly maximum for 2026, and 7 day waiting period. Triage Cancer: State Disability Insurance Quick Guide. Accessed October 2026.
- Nolo, Disability Secrets, “How Much Are Short-Term Disability Benefits in California?” – how California EDD builds the weekly benefit from the highest-paid quarter of the base period rather than from current wages. Nolo Disability Secrets: California Short-Term Disability Benefits. Accessed October 2026.
- LegalClarity, “Are Disability Payments Taxable?” – the premium-payer rule for tax treatment, grounded in Internal Revenue Code Sections 104 and 105: employer-paid or pre-tax premiums make benefits taxable; after-tax premiums make them generally tax-free. LegalClarity: Are Disability Payments Taxable?. Accessed October 2026.
- LegalClarity, “How to Calculate Your Short-Term Disability Premium” – how plans define covered earnings (base wages, usually excluding bonuses, commissions, and overtime) and apply the weekly maximum before any other step. LegalClarity: Calculating the Covered Weekly Benefit. Accessed October 2026.
- Ponce Law, “How Disability Benefits Are Calculated” – how SSDI is built from a lifetime earnings record through average indexed monthly earnings (AIME) and the primary insurance amount (PIA) formula, the contrast that defines what this calculator does not do. Ponce Law: How SSDI Benefits Are Calculated. Accessed October 2026.