How to Get a Seattle Food Truck Permit: The 2026 Step-by-Step Guide
Quick answer
Seattle food truck permits run $1,500–$3,000 total first-year, with King County health permits at $400–$800. The process takes 6–12 weeks. Seattle's rainy winters cut outdoor traffic, so plan for indoor events and catering November–March.
If you are searching for how to start a food truck in Seattle, the single most important thing to understand is that the rules are set by two different layers of government working together. Seattle-King County Public Health controls your food safety permit (the part that legally lets you cook and sell), while the City of Seattle controls your business license and any street vending you do on public property. Getting a Seattle food truck license means clearing both, plus a commissary agreement and a fire department sign-off. This guide walks the entire path in the order you actually do it, with approximate costs at each stage.
Seattle has a thriving food truck scene driven by the city’s tech workforce, construction boom, and strong coffee culture. The market is concentrated in downtown Seattle, South Lake Union (Amazon campus), and the surrounding neighborhoods. Seattle’s regulations are moderate — more complex than Portland or Austin but simpler than NYC or LA. The biggest single planning factor is seasonality: Seattle’s long, rainy winters significantly reduce outdoor foot traffic, and you need to budget around that from day one.
All fees below are approximate and change frequently. Always verify current amounts directly with Public Health – Seattle & King County and the City of Seattle before you budget or apply.
The Seattle Food Truck Permit Process, Step by Step
Most first-timers waste weeks because they apply for things in the wrong order. The health permit depends on a working truck and a signed commissary agreement, so you cannot front-load it. Here is the realistic sequence and approximate timing.
| Step | What You Do | Approx. Timeline |
|---|---|---|
| 1 | Register your business with Washington State + get a UBI number | 1-2 weeks |
| 2 | Get the City of Seattle Business License | 1-2 weeks (overlaps) |
| 3 | Sign a commissary agreement (required before health applies) | 1-4 weeks to find one |
| 4 | Submit Mobile Food Unit plan review to Public Health | 2-4 weeks review |
| 5 | Build / outfit the truck to the approved plan | Varies |
| 6 | Pass Public Health inspection + Fire Department inspection | 1-3 weeks scheduling |
| 7 | Receive the Mobile Food Unit permit; add street-use permits if needed | — |
Plan on roughly 6 to 10 weeks from a finished truck to a permit in hand, and longer if you are still building the unit. The commissary letter and the plan review are the two steps people forget to start early.
King County Mobile Food Permit and Health Fees
The “king county mobile food permit” that people search for is officially the Mobile Food Unit permit issued by Seattle-King County Public Health. The system uses a single permit category with fees based on the complexity and risk level of your menu. A truck doing on-board cooking pays more than one selling pre-packaged items.
| Permit / Item | Approx. Fee | Notes |
|---|---|---|
| Mobile Food Unit (Standard) | ~$591/yr | Full kitchen, all menu types |
| Mobile Food Unit (Limited) | ~$390/yr | Pre-packaged or simple prep |
| Temporary Food Permit | ~$95 | Events, 1-5 days (multi-event options exist) |
| Plan Review Fee | ~$297 | One-time, new truck construction or remodel |
| Food Worker Card | ~$10 | Required for every staff member, online course |
Other licenses and fees to expect:
- City of Seattle Business License: approximately $55 to start, plus an annual renewal that scales with revenue.
- Washington State Business License / UBI: a modest state filing fee; the Reseller Permit itself is free from the Washington DOR.
- Seattle Street Use / vending permit (only if vending on public property): approximately $250-$500/year depending on location and frequency.
- Fire Department Inspection: approximately $100 annually for trucks with cooking appliances and propane.
Seattle’s permit fees land moderately higher than Austin or Portland but well below NYC. For a side-by-side look at how this stacks up nationally, see our permit costs breakdown and the city-by-city table in permit cost by city. Remember every figure above is approximate — verify with Public Health – Seattle & King County before you commit.
Plan Review: The Step That Trips People Up
Before Public Health will issue your Mobile Food Unit permit, new and remodeled trucks must pass a plan review. You submit detailed drawings and a menu, and the health department checks that your equipment, sinks, refrigeration, water tanks, and finishes meet code. The plan review fee is approximately $297 and is separate from the annual permit.
Common reasons a Seattle plan review gets kicked back: too few sinks (you typically need a three-compartment warewashing sink plus a separate handwashing sink), undersized fresh-water and wastewater tanks, no proper hot-water heater, or surfaces that are not smooth and cleanable. Fixing these after a truck is built is expensive, which is exactly why the review exists. If you are buying a used truck from out of state — common in Seattle because the local used market is thin — assume it will need modifications to pass King County’s plan review.
Commissary Requirements
Washington state law requires all mobile food units to operate from a licensed commissary. King County enforces this strictly:
- All food prep must occur at the commissary (not on the truck)
- The truck must be stored at the commissary when not in use
- Potable water fill and wastewater disposal at the commissary
- Daily cleaning log must be maintained and available for inspection
Approximate commissary costs in Seattle: $500-$1,200/month, and a deposit is normal. Commissaries in the industrial districts (Sodo, Georgetown, Interbay) tend to be cheaper; downtown-adjacent spaces cost more. The commissary agreement is not optional paperwork — you usually need a signed letter from the commissary before Public Health will finalize your Mobile Food Unit permit, so line this up early.
Popular Seattle commissary kitchens cluster in Interbay, Georgetown, Rainier Valley, and South Park. See our commissary costs guide for the questions to ask before you sign — especially about water/wastewater access hours, storage, and whether overnight truck parking is included.
Where You Can Park and Sell in Seattle
Seattle’s street vending rules are moderately restrictive, and the model you choose changes which permits you need:
- Public street vending: Allowed on many commercially zoned streets but heavily restricted on downtown’s core streets during business hours. This is the only model that requires a Seattle Street Use / vending permit from the Seattle Department of Transportation.
- Private lots: The most common Seattle model — you rent space from a private property owner (office complexes, construction sites, gas stations). No street-use permit needed, but get written permission from the owner.
- Breweries: Seattle’s brewery scene (Ballard, Georgetown, Fremont, SODO) is enormous, and many taprooms have no kitchen and actively recruit trucks. This is one of the most reliable rotations in the city.
- Construction sites: Seattle’s building boom means consistent weekday lunch crowds; many trucks build a route around active sites.
- Farmers markets: Seattle has 20+ neighborhood farmers markets, most of which accept food trucks for vendor slots.
- Seasonal events: Seafair, Bumbershoot, Pride, PNW street fairs, and Mariners / Sounders / Kraken game days drive big single-day revenue.
The coffee truck market in Seattle is especially strong given the city’s coffee culture. Pizza trucks and taco trucks perform well at breweries and construction sites. If you are still deciding whether Seattle is even the right launch market, weigh it against alternatives in our best city to start comparison.
The Rainy-Season Reality: Planning Around Seattle Seasonality
This is the part outside guides skip, and it is the thing that sinks Seattle trucks. From roughly November through February, rain and short daylight cut outdoor foot traffic hard — revenue commonly drops 30-50% versus the summer peak. A truck that looks profitable on July numbers can run a loss in January if it has no cold-season plan.
Operators who survive the wet season usually do some combination of: pivoting to corporate and private catering (holiday parties, office lunches that move indoors), locking in brewery rotations under covered patios, narrowing to high-margin, weather-resistant menus like coffee and hot comfort food, and simply running fewer service days. Build your annual budget on a seasonal curve, not a flat monthly average — that single adjustment separates the businesses that make it through their first winter from the ones that close in March. Our seattle startup cost guide goes deeper on sizing your working-capital cushion for the slow months.
Insurance Requirements
- General Liability: $1M minimum (most commissaries require $2M)
- Commercial Auto Insurance: Required for trucks
- Workers’ Comp: Required if you have employees (Washington State Dept of L&I)
- Washington Paid Family & Medical Leave: Employer contributions required (if you have employees)
- Food Spoilage Insurance: Recommended for the rainy season (power outages)
Total Startup Cost Estimate for Seattle
| Cost Category | Low End | High End |
|---|---|---|
| Used Truck | $55,000 | $90,000 |
| Kitchen Equipment | $10,000 | $20,000 |
| Permits & Licenses (Year 1) | $2,000 | $3,500 |
| Commissary Deposit + 1 Month | $1,000 | $2,400 |
| Insurance (Annual Premium) | $3,000 | $6,000 |
| Working Capital (3 months) | $15,000 | $30,000 |
| Total Estimated Startup | $86,000 | $151,900 |
All totals above are approximate planning ranges, not quotes. Seattle’s startup costs run slightly above the national average but below NYC. The biggest swing factor is the truck itself — Seattle’s used truck market is limited, so many operators buy from out of state and then pay to bring the unit up to King County code. Use our startup cost calculator to model costs specific to your Seattle concept, and verify every fee with Public Health – Seattle & King County before committing capital.
Frequently asked questions
How long does it take to get a food truck permit in Seattle?
Plan for roughly 6 to 10 weeks once your truck is ready. Public Health – Seattle & King County typically processes the application and plan review within a few weeks, then inspection scheduling depends on inspector availability. If you are still building the truck, the timeline is longer. The two steps people start too late are the signed commissary agreement and the plan review, so begin both as early as possible.
How much does a Seattle food truck license cost in total for year one?
For licenses and permits alone — Mobile Food Unit permit, plan review, City of Seattle business license, fire inspection, and food worker cards — budget approximately $2,000 to $3,500 in the first year. That excludes the truck, equipment, commissary, and insurance. These are approximate figures; confirm current amounts with Public Health – Seattle & King County and the City of Seattle.
Is Seattle a year-round food truck market?
Only partially. Revenue commonly drops 30-50% from November through February due to rain and reduced outdoor foot traffic. Operators who make it through the winter lean on corporate and private catering, covered brewery rotations, and high-margin menus like coffee, then capture strong demand during the busy March-October season. Budget on a seasonal curve, not a flat monthly average.
Do I really need a commissary to run a food truck in Seattle?
Yes. Washington state requires all mobile food units to operate from a licensed commissary, and King County enforces it. Food prep, water fill, wastewater disposal, and often truck storage happen at the commissary, and you typically need a signed commissary letter before Public Health finalizes your Mobile Food Unit permit. Expect approximately $500-$1,200/month plus a deposit.
Do I need a special permit to vend at Amazon’s South Lake Union campus?
Yes. Amazon runs its own food truck program at its Seattle campus with a separate vendor application, and selection is competitive. Approved trucks generally must carry higher liability limits (commonly $2M) and pass an Amazon-specific site review on top of your standard King County mobile food permit and city licensing.
Methodology & Assumptions
Data in this guide is drawn from public vendor pricing, industry surveys, operator interviews, and permit fee schedules across major U.S. metro areas. Cost ranges reflect typical planning scenarios and do not include outlier markets (e.g., NYC, SF) unless noted. Last updated: 2026-06-02.