Sending your tax return to the correct office first time round will allow your payment to be processed as quickly and efficiently as possible. Sending the files to the wrong office will result in a delay in your payment and possible further charges.
Colorado state tax forms can be downloaded for free from the Colorado Department of Revenue website (www.colorado.gov/cs/Satellite/Revenue/REVX/1177017551291). The state officials prefer that you fill in the forms electronically either via the state-specific program called Netfile or via the IRS website’s program FreeFile.
If it is not possible for you to fill out the forms electronically or you do not wish to, for good reason, then you can mail them using the address that’s relevant for your circumstances. If you are having problems filing your Colorado state tax return then you can contact the Department of Revenue via their website or by phone. If you take your unfilled forms into the department with you, someone may be able to help talk you through filling out your forms to ensure that you have included all of the correct information.
An accountant can also give you accurate advice on how to deal with tax returns professionally and appropriately. You should consider this a priority because of how you can be levied with substantial penalty if payment is late.