No - not out of UI checks.
Before 1990, UI benefits were NEVER taxed. Then started taxing the tax which was total BS. Last year I believe that income tax did not tax UI benefits.
NO taxes are taken out of your UI check, however, don't know what crazy rules the IRS will have on UI benefits for 2010 for income taxes.
Pretty sad when they tax a tax that is used as an insurance for a loss of a job. That like taxing fire/flood insurance because for every hour you work, - YOU pay into UI - PLUS your boss does also.
Which is why companies try to improve their bottom line by routinely denying UI benefits to laid off workers.
Because if there is a high rate of turnover the company taxes for UI goes up from 1.7% to 3.8% (OR - 10 years ago), for every hour worked by every employee for the entire enterprise.
So IF ever get denied UI always -always appeal, appeal appeal. Some states deny food stamps if get fired from a job and can't get UI. So always fight for your rights if just let go without cause. Hire at will means fire at will. As long as did not get fired for cause - can get UI benefits.
Always ask for the little blue book ( have to ask hard) that each state has for the different rules - It shows your rights. Something the state don't want you to know.