Download Free Colorado Pass-Through Entity and Composite Nonresident Income Tax Form
Download and use this form in which you can pay return that are due 3 and half months after the end of the tax years, or by 15th April of 2013. There is also an extension option to file, in case if you are not able to file by the due date. The filing will result you an extension of 6 months to file your return, or untill 15th of october 2013.
This extension to filing don’t allow you to extend your payment due date. 90% of the tax liability must be paid by the original due date of your tax return and the remaining can be filed by the due date of october 15h to avoid delinquent payment penalties.