Does Washington require state 1099 tax filing?
No, Washington does not require state 1099 tax filing.
Does Washington participate in Combined Federal/State Filing?
No. Since Washington does not require state 1099 tax filing, no combined filing is necessary.
What is the responsible state agency?
Washington Department of Revenue
P.O. Box 47450
Olympia, WA 98504-7472
(800) 647-77
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