Where do you send your Colorado federal tax return?

Answer by  Dean (4035)

There are regional offices where completed tax returns should be sent. Use this address if you are requesting a refund or submitting a payment: Department of the Treasury, Internal Revenue Service, Fresno, CA 93888-0102

Answer by  cynosure (376)

Federal tax returns do not all go to the same place - tax returns are routed, among other factors, based on where in the US the filer is located and whether the filer will be enclosing payment or requesting a refund. In almost all cases, a Colorado return must be sent to either San Francisco or Fresno California.