The unemployment system is a financial partnership between the federal and state governments. The federal government levies an unemployment tax, under the Federal Unemployment Tax Act, to finance administrative costs of the system, provide loans to states and cover extended benefits. States levy payroll taxes on employers to pay for unemployment insurance benefits. These taxes, calculated on state financing formulas and an employer’s history of claims, are deposited into the federal Unemployment Trust Fund. Each state, plus D.C., Puerto Rico and the U.S. Virgin Islands, has its own account within the trust fund.