How unemployment insurance works in the US: eligibility, amount, duration and the basics for immigrants
Unemployment insurance is a federal-state insurance system that pays temporary cash benefits to workers who lose their jobs through no fault of their own. It is funded by employer taxes and each state runs its own program. This explainer covers the structure of the system, eligibility, benefit amount and duration, and key points for immigrants — on the basis of sources.

Unemployment insurance (UI) is a form of insurance that pays temporary cash benefits for a limited period to workers who lose their jobs through no fault of their own. It is not means-tested welfare but an insurance financed by taxes paid by employers. Below the system is set out as sourced facts only; because each state has its own rules, this is not legal advice.
How the system is structured
The UI system was created by the Social Security Act of 1935. It is a joint federal-state program: the federal government sets the general framework while each state runs its own program independently — for example, EDD (the Employment Development Department) in California, and the state labor department in New York. The program is financed by federal (FUTA) and state (SUTA) unemployment taxes paid by employers; this tax is normally not withheld from the worker's wages. Overall oversight rests with the US Department of Labor.
Who is eligible
To receive benefits a person must: have lost their job through no fault of their own (for example, a layoff; someone dismissed for cause or who quit without good cause is usually not eligible); be able to work, available for work and actively seeking work; and have earned enough wages or worked enough during a "base period" (usually the first four of the last five completed calendar quarters before the claim). In addition, the person must have legal authorization to work.
Benefit amount and duration
Benefits are paid weekly and in most states replace roughly half of the worker's prior average weekly wage, up to a state maximum. Benefits are usually paid for up to 26 weeks; additional weeks (Extended Benefits) may be available during periods of high unemployment. Some states do not pay the first "waiting week". To keep receiving benefits, the claimant must certify each week or two weeks that they are able to work and actively seeking it, and must report any earnings.
How to file a claim
A claim is filed with the unemployment agency of the state where you live (online or by phone). It typically requires a Social Security number (SSN), a document proving work authorization, recent employment history and the reason for separation. For each payment period a "certification" follows — confirming that you are able to work and actively seeking it.
Key points for immigrants
To receive benefits, a person must have been authorized to work during the period they worked and have worked in covered (taxed) employment, and must keep that work authorization while claiming benefits. UI is an earned insurance payout based on contributions paid in advance by the employer — not means-tested federal welfare. Even so, for questions tied to an individual immigration status it is advisable to consult the state agency or a qualified immigration attorney.
Conclusion
Unemployment insurance is not permanent income but temporary support until a new job is found. The conditions, amount and duration vary significantly from state to state, so for precise information and to file a claim you should go to your own state's official unemployment agency website.

