RCW 82.04.020: "Tax year," "taxable year."
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Washington Code › Title 82 › Chapter 04 › Section 020
This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.
Text
"Tax year" or "taxable year" means either the calendar year, or the taxpayer's fiscal year when permission is obtained from the department of revenue to use a fiscal year in lieu of the calendar year.
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