2014 Colorado Interest Rates on Overpayments, Nonpayments, and Underpayments.

The  Colorado Department of Revenue outlined the interest rate for overpayments, nonpayments, and underpayments for all 2014 state taxes. Rates will stay at 6%. If the underpayment or nonpayment is paid within 30 days of recieving notice from the state, or is voluntarily paid without notice, the interest rate will be reduced to 3%.

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http://cotaxinfo.wordpress.com/2013/11/18/2014-interest-and-penalty-rates/

Quoath South Dakota, “Quest No More.”

South Dakota’s quest service which could be used to file Sales and use tax returns, and contractors excise returns will not be available after July 23, 2013. Instead’ the South Dakota Department of revenue suggests using the EPATH service to electronically file said returns.

http://www.state.sd.us/drr2/businesstax/quest/quest.htm