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Important Due Dates

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April 21 - April 27
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  • 21
    April 21, 6137
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    April 22, 6137
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    April 26, 6137
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    April 27, 6137
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A=ANNUAL

M=MONTHLY

Q=QUARTERLY

 

DISCLAIMER: THESE DUE DATES ARE SUBJECT TO CHANGE. WE WILL DO OUR BEST TO KEEP THIS CALENDAR UP TO DATE WITH THE EVERCHANGING DEADLINES. ANY STATE FILING DUE DATES ARE IN REFERENCE SPECIFICALLY TO THE WASHINGTON STATE DEPARTMENT OF REVENUE.

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