Net Colorado tax liability

For the purpose of calculating required estimated tax payments, a taxpayer’s net Colorado income tax liability is the total tax determined on the taxpayer’s return or by any subsequent amendment or assessment minus certain credits. For this calculation, total tax includes Colorado tax, alternative minimum tax, and any recapture of prior year credits. The credits subtracted in this calculation consist of all credits other than wage withholding, nonresident real estate withholding, nonresident beneficiary withholding, sales tax refund credits, and any payments remitted by the taxpayer.