Rates are set by fiscal year, effective October 1 each year. Find current rates in the continental United States ("CONUS Rates").
When you close your business, in addition to filing your final federal tax returns and paying any taxes due, you may also have state taxes to deal with.
If you had employees, a state unemployment tax return is generally filed quarterly.
Check your return to see if it provides a place to enter business termination information.
Generally, sales tax returns have a box where you place a checkmark if it's your final return and to have your sales tax permit canceled.
Some states don't have a sales tax.
For example:
Tax laws change frequently, even at the state level. Check your state for the most current information.
If you file state employment tax returns to report state withholding taxes, check to see if these forms provide a section to enter business termination information.
Check with your state's department of revenue and unemployment office for their tax filing requirements when a business is closed.