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IP 2021(1), Connecticut Circular CT Employer's Withholding Guide
IP 2021(2), Farmer’s Guide to Sales and Use Taxes, Motor Vehicle Fuels Tax, Estimated Income Tax, and Withholding Tax
IP 2021(4), Commercial Fisherman’s Guide to Sales and Use Taxes and Estimated Income Tax
IP 2021(7), Is My Connecticut Withholding Correct?
IP 2021(8), Connecticut Tax Guide For Payers of Nonpayroll Amounts
IP 2021(12), Forms 1099-R, 1099-MISC, 1099-K, 1099-NEC, and W-2G Electronic Filing Requirements for Tax Year 2020
IP 2021(13), Form W-2 Electronic Filing Requirements for Tax Year 2020
Prior Year Informational Publications