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King County, WA Business Licensing & Operations: Secondhand Dealers (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

License fee
$40 per year, due Dec. 31
Resale hold
10 days after report to sheriff
Records retention
5 years, kept in ink, English
Sheriff transcript
Filed weekly, every business week
Late renewal penalty
5%-20% of fee, tiered by amount
Criminal penalty
Misdemeanor under § 6.60.150
Civil penalty
Up to $250 per violation

Summary

Anyone buying, selling or trading secondhand goods in unincorporated King County must hold a secondhand dealer's license under King County Code § 6.60.010. The $40-a-year license covers each shop location and comes with strict recordkeeping, a sheriff transcript duty, and a mandatory ten-day hold before resale.

City-specific rules exist: Kirkland, Kent, Seattle, and Federal Way have their own secondhand dealers rules that differ from King County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

6.60.010 License required. It is unlawful for any person, firm or corporation to engage in the business of buying, selling, or trading in secondhand goods in King County without first obtaining a "secondhand dealer's license" pursuant to the provisions of this chapter. (Res. 36054 § 1, 1968).

Source: Revised Code of WashingtonView official code

Full Breakdown

010 makes it unlawful for any person, firm or corporation to engage in buying, selling or trading secondhand goods in King County without first obtaining a secondhand dealer's license. 020. 030). 040). 070). 050). 060). 110). 100). 130).

Violations & Fines

Section 6.60.140 bars a dealer or employee from knowingly buying stolen goods, buying from a minor, an intoxicated or drug-addicted person, or a known thief, and requires returning identified stolen or unauthorized-sale property to its rightful owner free of charge. Any violation of chapter 6.60 is a misdemeanor under § 6.60.150. The Director can also assess a civil penalty of up to $250 per violation under § 6.60.160, scaled to the business's size, the violation's gravity, and the violator's compliance history, and § 6.60.170 lets the Director seek injunctive relief in addition to any other remedy.

Frequently Asked Questions

Who needs a secondhand dealer's license in King County?
Anyone in unincorporated King County who buys, sells, trades, barters, auctions or takes secondhand goods on consignment, including used auto tire and parts dealers, needs a license under § 6.60.010. Used-car and used-boat dealers, and businesses dealing only in items defined as "junk" under § 6.60.020, are excluded.
How long must a King County secondhand dealer hold purchased items?
Ten days after the transaction is reported to the sheriff's office, per § 6.60.130, unless sheriff personnel inspect the goods and authorize earlier release. Consigned property sold at auction only needs to be held three days before sale.
What records must a King County secondhand dealer keep?
An ink, English-language ledger with the transaction date, the clerk's name, the seller's name, age, signature and address, where the property came from, an itemized price, and identifying details like serial numbers, kept five years and open to inspection by the Department of Public Safety under §§ 6.60.080-6.60.110.
What happens if a King County secondhand dealer buys stolen property?
It is unlawful under § 6.60.140 to knowingly buy stolen goods or buy from a minor, an intoxicated person, a drug user, or a known thief, and the dealer must return identified stolen property to its owner for free. Violations are misdemeanors and can also draw a civil penalty up to $250 per violation.

Sources & Official References

Other rules in King County

All King County rules

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