Recent Site Changes
Learn about the most recent payroll calculator site changes here.
- 2011 Site Changes
- 2010
- 2009
- 2008
- 2007
New Site Design and Calculators!
5/1/11
North Dakota, Yonkers
2/1/11
Puerto Rico
1/1/11
Federal, Alaska UI Wage Base, Arizona, California, California SDI, Colorado, Hawaii, Hawaii SDI, Illinois, Kentucky, Kentucky OLF, Main, Maryland County, Michigan, Minnesota, Missouri, New Jersey SDI, New Mexico, New York City, Ohio cities, Oklahoma, Oregon, Pennsylvania EIT and LST, Rhode Island, Rhode Island SDI, Vermont
Indiana Counties
9/1/10
New York City
7/1/10
Arizona, Ohio cities, Pennsylvania EIT and LST updates
1/8/10
District of Columbia, Missouri, Pennsylvania EIT and LST
12/28/09
Delaware, Hawaii SDI, Kentucky, Ohio Cities (Professional Only), Oklahoma, Rhode Island, 2010 Form W4 Assistant
12/21/09
Added new 2010 withholding formulas for: federal tax tables, Alaska UI wage base, Arizona, California, California SDI, Maine, New Jersey, New Jersey SDI, New York, Yonkers, North Dakota, Ohio School Districts (Professional Only), Rhode Island SDI, Vermont
2010 401(k) numbers did not change
California, Connecticut, Indiana locals (professional calcs only)
Wisconsin, Columbus OH (professional calcs only)
Ohio locals
Alabama counties , Kentucky locals (professional calcs only), New Jersey, Ohio locals
Hawaii, North Dakota supplemental, Ohio locals (professional calcs only)
Arizona, California, Louisiana and New York
Federal AARA update
Indiana counties, Philadelphia (professional calcs only)
Arkansas, Connecticut, Missouri, Nebraska, Oregon
2009 W4 Assistant
Added new 2009 withholding formulas for: federal tax tables, Social Security wage base increased to $106,800, Alaska UI wage base, California, California SDI, Colorado, Hawaii TDI, Kentucky, Kentucky Counties (professional calcs only), Maine, Michigan, Minnesota, New Jersey SDI/SUI, New Mexico, North Dakota, Ohio, Oklahoma, Oregon Tri-Met (professional calcs only), Rhode Island, Rhode Island SDI, Vermont, Washington D.C..
10/23/08
Indiana Counties (professional calculators only)
10/08/08
Missouri
7/11/08
Maryland, local rates updated (professional calculators only)
3/21/08
Idaho
3/15/08
Connecticut Supplemental, Maryland Supplemental, Ohio locals
2/25/08
Puerto Rico, Utah (2nd update)
1/18/08
Alabama, Massachusetts, Washington D.C.
1/4/08
Connecticut, Missouri, Pennsylvania SUI
12/28/07
2008 Form W-4 Assistant added
12/19/07
Added new 2008 withholding formulas for: federal tax tables, Social Security wage base increased to $102,000, Alaska UI wage base, Arkansas low income credit, California, California SDI, Colorado, Hawaii TDI, Kentucky, Maine, Maryland, Michigan, Minnesota, Nebraska, New Jersey SDI/SUI, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Rhode Island, Rhode Island SDI, Utah, Vermont, Virginia.
2008 401(k) personal limit did not change.
Check back with this page for details on future updates.
10/3/07
Michigan
1/19/07
District of Columbia
1/10/07
Oklahoma supplemental
12/28/06
Hawaii TDI, Oregon Worker's Benefit Fund, 2007 W4 Assistant.
12/22/06
Alabama, Connecticut, Rhode Island
12/18/06
Added new 2007 withholding formulas for: federal tax tables, Social Security wage base increased to $97,500, Alaska UI wage base, California, California SDI, Colorado, Hawaii, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Jersey SDI/SUI, New Mexico, North Carolina, North Dakota, Oklahoma, Oregon, Puerto Rico, Rhode Island SDI, Utah, Vermont.
2007 401(k) limit updated to $15,500 plus catch up provision if applicable.
Check back with this page for details on future updates.
