Connecticut State Department of Revenue Services

Upcoming CT DRS webinar: Select to register for the upcoming Withholding Forms W-2 and 1099 Annual Filing Webinar on Wednesday, January 15, 2025, at 10:00 a.m.

1999 Informational Publications

IP 99(1), Is My Connecticut Withholding Correct?
IP 99(2), State Tax Tips for Senior Citizens
IP 99(2.1), Connecticut Tax Tips for Senior Citizens
IP 99(3), Personal Taxes
IP 99(3.1), Personal Taxes
IP 99(9), A Guide to the Federal and Connecticut Gift Taxes
IP 99(10), Connecticut Telefile Brochure
IP 99(11), Business Taxes
IP 99(11.1), Business Tax
IP 99(12), Calculating Annualized Estimated Corporation Business Tax Installments and Worksheet CT-1120 AE
IP 99(12.1), Calculating Annualized Estimated Corporation Business Tax Installments and Worksheet CT-1120 AE
IP 99(13), Calculating Annualized Estimated Corporation Business Tax Installments for S Corporations and Worksheet CT-1120S AE
IP 99(13.1), Calculating Annualized Estimated Corporation Business Tax Installments for S Corporations and and Worksheet CT-1120S AE
IP 99(14), Questions and Answers on the Connecticut Neighborhood Assistance Act Tax Credit Program
IP 99(16), Paying Connecticut Taxes by Electronic Funds Transfer
IP 99(17), Farmer's Guide to Sales and Use Taxes, Motor Vehicle Fuels Tax and Estimated Income Tax
IP 99(18), Sales and Use Taxes Guide for Manufacturers, Fabricators and Processors
IP 99(19), Building Contractor's Guide to Sales and Use Taxes
IP 99(20), Connecticut Marijuana and Controlled Substances
IP 99(20.1), Connecticut Marijuana and Controlled Substances
IP 99(25), 1999 Connecticut Magnetic Media Filing Requirements for Federal Forms 1099-MISC, 1099-R and 1099-S and W-2G
IP 99(26), 1999 Connecticut Magnetic Media Filing Requirements for Federal Form W-2
IP 99(27), Q & A: The 1999 Connecticut Sales Tax Rebate
IP 99(28), Q & A on the Connecticut Individual Use Tax
IP 99(29), Connecticut Income Tax Obligations of Enrolled Members of The Mashantucket Pequot Tribe
IP 99(30), Federal/State Electronic Tax Filing Handbook
IP 99(32), Connecticut Income Tax Information for Armed Forces Personnel and Veterans
IP 99(33), A Guide to Calculating Your Annualized Estimated Income Tax Installments and Worksheets CT-1040 AES
IP 99(34), Q & A: Income Tax Credit for Property Taxes Paid to a Connecticut Political Subdivision
IP 99(35), Estimated Connecticut Income Taxes
IP 99(37), Bringing or Importing Alcoholic Beverages into Connecticut