Resources

Short, practical notes on the questions Washington business owners ask us most often. No gated downloads, no email capture.

2026-01-19

A calendar of the L&I, ESD and Paid Leave deadlines Washington employers miss most often, and what happens when they slip.

2026-02-11

Fourteen checks that separate books you can make decisions from and books that merely exist.

2026-03-04

Including two questions that will tell you more than any certification badge on a website.

Quick reference: Washington deadlines

The dates our clients diary every year. Verify against the agency notice you receive, since assigned filing frequency varies.

Obligation	Agency	Typical frequency	Due
Combined excise return (B&O, sales tax)	WA Department of Revenue	Monthly / quarterly / annual	25th of the following month, or last day for quarterly filers
Workers' compensation report	WA Labor & Industries	Quarterly	Last day of the month after quarter end
Wage detail report	WA Employment Security	Quarterly	Last day of the month after quarter end
Paid Family & Medical Leave premiums	WA Employment Security	Quarterly	Last day of the month after quarter end
Federal payroll deposits	IRS	Monthly or semi-weekly	Per assigned schedule
W-2 and 1099-NEC issuance	IRS / SSA	Annual	31 January

Our payroll and compliance service tracks every date above and files on your behalf.