Almost every Oregon prep center’s homepage leads with “no sales tax.” Most of them are lying about what that actually means. This is the narrow, defensible, CPA-safe version of the Oregon advantage. We run our own pitch off it at KL Productions because it is the only version that survives a second read.
What is actually true
Oregon is one of five states with no state sales tax. The others are New Hampshire, Montana, Alaska, and Delaware. These are the NOMAD states — a term that gets thrown around in FBA circles.
For an Amazon seller routing inventory through a Medford, Oregon prep center, three specific line items are genuinely tax-free that would be taxed in California, Texas, Washington, and most other states.
1. Prep services are not taxed. In California, services can be taxable depending on what they include. In Washington, service revenue is subject to B&O tax. In Oregon, the labor and service component of what your prep center charges you is untaxed. That is real.
2. Supplies we buy for your product are not taxed. We buy polybags, labels, cartons, shrink wrap, and insertable warning cards on your behalf. In Oregon, those supplies are purchased tax-free and passed through to you tax-free. In California, we would pay state sales tax at purchase and that cost would flow into your invoice.
3. Inventory sitting at our shop before it ships does not create Oregon nexus. Oregon has no sales tax regime for that inventory to be nexus for. Your inventory at KL Productions waiting for FBA shipment does not trigger tax filings, registration obligations, or nexus exposure at the Oregon level.
What is not true
Here is where most Oregon prep centers get into trouble.
Oregon does not eliminate Amazon FBA nexus. Post-South Dakota v. Wayfair, the rules changed. Once Amazon stores your inventory in a state (they move your SKUs around their fulfillment-center network based on demand signals), that state has nexus over your sales into that state. The state you prepped the inventory in does not matter.
If you have inventory at Amazon FCs in California, Texas, Pennsylvania, and Georgia, you potentially have nexus in all four states. You may need to register, collect, and remit sales tax in each. Oregon prepping the inventory before it goes to those FCs does not change any of that.
Any prep center that pitches Oregon as a way to avoid Amazon sales tax obligations is either misunderstanding the law or misleading you. Your CPA will fire either you or them.
The correct pitch is narrower: Oregon saves you on the line items Oregon actually controls. Not on your Amazon sales tax filings.
The real dollar math for a $1M/year seller
Let me run the math for a seller at $1M annual revenue with typical FBA unit economics.
Assume:
- 100,000 units per year going through prep
- Average prep fee around $0.90 per unit all-in = $90,000 per year in prep spend
- $25,000 per year in supplies (poly bags, labels, cartons) bought by the prep center on your behalf
- $18,000 per year in pallet storage
- $500,000 in inbound inventory value passing through the prep center annually
In Oregon, sales tax on all four of those categories is zero. In California, Texas, or Washington, some portion is taxed.
Prep services savings vs California. California B&O / service tax exposure varies, but for a prep center with a California business presence, there is typically a 7.25% to 9.5% combined rate on the labor component. Assume a conservative 5% effective rate on prep services: $90,000 × 5% = $4,500/year.
Supplies savings vs California. Sales tax at California’s average combined rate of ~8.82% on $25,000 in supplies: $2,205/year.
Storage exposure savings. California has inventory taxes in some counties, and the supplies-used-in-warehouse rule has been interpreted various ways. Assume 3% effective: $18,000 × 3% = $540/year.
Inbound inventory use-tax exposure. This is where it gets interesting. Some states assert use-tax on inventory passing through, conditionally. California’s rule is narrow but real in certain fact patterns. Assume 1% effective on 50% of the inventory flow: $500,000 × 50% × 1% = $2,500/year.
Total annual savings vs California: ~$9,745.
That is the low end. For a seller shipping hazmat, or importing directly to a California prep center where the use-tax argument is stronger, or for a higher unit volume, the math grows.
For a $5M/year seller doing 500,000 units, the same math scales to roughly $40,000 to $50,000 per year.
Oregon vs Delaware vs Montana
All three NOMAD states save on the same categories. The differentiator is geographic proximity to Amazon fulfillment centers.
Oregon’s advantage:
- Medford sits closer to Amazon FCs in Troutdale OR, Kent WA, Sacramento CA, and Reno NV than most Portland-metro prep centers
- Significantly closer than Montana (closest Amazon FC is Spokane WA, much slower drive)
- Significantly closer than Delaware for West Coast customer fulfillment
Delaware wins for East Coast seller fulfillment. Montana makes sense for Pacific Northwest retail, less so for Amazon FBA velocity.
For a West Coast-leaning Amazon business, Oregon is the right NOMAD state. For an East Coast-leaning Amazon business, Delaware is. Montana is rarely the right answer for FBA.
What to verify before you move
Before you move your prep to an Oregon shop, run these three checks:
Check 1: Your CPA on the Oregon savings. Send your CPA the savings categories and ask them to confirm the math for your specific fact pattern. It is narrow tax advice they should be able to give in thirty minutes.
Check 2: Your freight costs from the new prep center to your typical FC cluster. For Medford specifically, inbound freight to Troutdale runs roughly 4.5 hours of drive time. To Sacramento runs 6. Get real freight quotes and model the delta against your current setup.
Check 3: The prep center’s Brand Rep policy (if you are Brand Registry enrolled). If they still charge you FNSKU on Brand Rep SKUs, the Oregon tax savings are offset by overcharging. Combine the two and you are back to break-even or worse.
The bottom line
Oregon saves a legitimate 4 to 10 percent on prep services, supplies, and inbound inventory exposure compared to a California prep center. For a $1M seller, that is $8K to $40K a year in real dollars, depending on your baseline state and unit mix.
Oregon does not eliminate Amazon sales tax nexus. Your FBA tax filings are the same whether you prep in Oregon, California, or Texas.
Any prep center telling you otherwise is either confused or lying. Either one is a reason to keep looking.
If you want to run the math on your specific SKU volume and baseline state, the Oregon Tax Savings Calculator takes three inputs and returns your real number. If you want a written one-pager for your CPA to review, we will send it inside one business day — no email gate, no sales funnel.
Trevor writes the Field Guide himself from the KL Productions floor. No ghostwriter, no definitional 101 content, no AI-smoothed marketing posts. If he did not work through it on the floor, it does not go out under his byline.