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Washington

Form
Filing Requirements
Corrections
1099-B
Direct filing required of forms that are reportable to the IRS where taxable state is Washington and the form has long-term or ordinary long-term gain.
Corrections of directly filed forms are completed in the 1220 format.
Filing due date
Within 90 days of Federal filing
Filing method
Electronic Upload
Electronic filing URL
Filing format
IRS 1220 for 1099 filings
CFS participant
No
Supporting documentation