The most common reference for "104X" is the . Taxpayers use this form to correct an individual income tax return that has already been filed for a specific year.
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: You can find the latest version on the official Colorado Department of Revenue website. 2. Technical or "Abv" Data Reference The most common reference for "104X" is the
Are you trying to into a specific program (like Excel or Alteryx)? Malicious actors sometimes use "double extensions" (e
: To report changes in income, deductions, or credits.
: If you are looking for the federal (IRS) version of an amended return, that is Form 1040-X .