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- CO State Estimate Tax Envelope - 3-7/8" x 8-7/8" (COEST10)
CO State Estimate Tax Envelope - 3-7/8" x 8-7/8" (COEST10)
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Description
State tax return filing envelope for estimated tax returns in Colorado.
Mailing Address:
- STATE OF COLORADO
- DEPARTMENT OF REVENUE
- DENVER, CO 80261-0008