Interest Rates on Tax Underpayments

Business Tax Interest Rate Calculator

Interest Rates

Tax underpayments will have interest applied to them daily. The rates below apply to tax underpayments of income and excise taxes including:

  • General Corporation Tax (GCT)
  • Unincorporated Business Tax (UBT)
  • Banking Corporation Tax (BCT)
  • Business Corporation Tax
Interest Rates for NYC Income & Excise Taxes
April 1, 2016 through March 31, 2018

8%

October 1, 2011 through March 31, 2016 7½%
April 1, 2011 through September 30, 2011 8%
January 1, 2011 through March 31, 2011 7½%
July 11, 2009 through December 31, 2010 8%
April 1, 2009 through July 10, 2009 6%
January 1, 2009 through January 1, 2009 7%
October 1, 2008 through December 31, 2008 8%
July 1, 2008 through September 30, 2008 7%
April 1, 2008 through June 30, 2008 8%
January 1, 2008 through March 31, 2008 9%
July 1, 2006 through December 31, 2007 10%
October 1, 2005 through June 30, 2006 9%
April 1, 2005 through September 30, 2005 8%
October 1, 2004 through March 31, 2005 7%
July 1, 2004 through September 30, 2004 6%
April 1, 2004 through June 30, 2004 7%
October 1, 2003 through March 31, 2004 6%
July 1, 2003 through September 30, 2003 7%
January 1, 2002 through June 30, 2003 6%
July 1, 2001 through December 31, 2001 7%
April 1, 2001 through June 30, 2001 8%
April 1, 2000 through March 31, 2001 9%
April 1, 1999 through March 31, 2000 8%
January 1, 1999 through March 31, 1999 7%
April 1, 1998 through December 31, 1998 8%
Archived Interest Rate Notices on Tax Underpayments

Notice of Interest Rates of Tax Underpayments


2018

Notice of Interest Rates on New York City Income and Excise Taxes (for the period January 1, 2018 through March 31, 2018).