Your losses still can be carry and they will. Show me where(on a government site - Colorado state or IRS said that you have to file taxes, if you do NOT HAVE A TAXABLE INCOME).
I upload a page from State State of Colorado where it's said that you HAVE TO HAVE A taxable income. Loss from rental property is NOT A TAXABLE INCOME.
It's on the form, which I upload- Who is Colorado NON Resident. I am Enrolled Agent and I am pretty familiar with the tax regulations. I may be wrong, but show me anywhere where it's said that you have to file a state tax return if you do not have any taxable income.....I just show you that the State of Colorado is saying that needs to be a Taxable Income and Loss from Rental Property is NOT.
