OLYMPIA, WA - The Washington State Department of Revenue is reminding business owners to file their state taxes by January 31st to avoid penalties. If a business had no activity in 2017 it does have to file a "no business"tax return.
From the WSDR:
January is always a busy time, with tax deadlines converging for monthly, quarterly and annual filers. Taxpayers needing help should contact Revenue as soon as possible. As the Jan. 31 deadline nears, wait times for help from Revenue’s tax specialists get longer.