Portland adds one city rule that a small Shopify store should check once and then set aside. The City of Portland's Clean Energy Surcharge is a 1 percent surcharge on retail sales within the city, imposed on Large Retailers, which the Revenue Division defines as businesses with retail sales of 1 billion dollars or more everywhere and 500,000 dollars or more in Portland. A store below the first line is not a Large Retailer. What the city does offer a small seller is a deep bench of local makers: Census County Business Patterns counts 27 coffee and tea manufacturers in Multnomah County for 2023, and the airport moved 18,563,132 passengers in 2025. This page sets out the surcharge, the local numbers and a cart discount tier plan with the Rose Festival as the dated anchor.
Check the surcharge once. The City defines a Large Retailer as one with Retail Sales of 1 billion dollars or more everywhere and 500,000 dollars or more in Portland, so a store far below the first line is outside it. If you are close to either number, ask the Revenue Division.
Source: City of Portland Revenue Division: Clean Energy Surcharge
Set the first tier above your typical order and below the point where the discount costs you more than the order earns. The cost of discounting post shows how to find that point. Portland's city surcharge is 1 percent of retail sales for a Large Retailer and does not enter your discount math if you are not one.
Source: City of Portland Revenue Division: Clean Energy Surcharge
Make the second tier a step the shopper can see from the first: one more item or one more bag. A tier plan works when each step is a small stretch, and the cart discount template shows both tiers in the cart.
The festival's 2026 parade was on June 6, and the organizer had not posted 2027 dates when this page was written. Plan a June window now, and move the exact days when the dates appear. Do not print a date you have not seen on the festival's site.
Source: Portland Rose Festival: Grand Floral Starlight Parade 2026
Order from a Portland address and from another state, and compare the tax lines. This page does not cover Oregon's rules; the Oregon page does. Then check how the tiers combine with your free shipping rule.
Build it with the Cart discount tiers template.
Requires: Growth plan or higher.
With 27 coffee and tea manufacturers counted in Multnomah County in 2023, a roaster here competes with neighbors for the same shoppers. Cart tiers that reward a second and third bag keep the offer on volume instead of a deep single discount, and the discount floor post gives the formula for the lowest price you can offer.
Source: U.S. Census Bureau: County Business Patterns 2023, Multnomah County, Oregon
Twenty-one apparel manufacturers in the county in 2023 means plenty of small runs and short stock. A free shipping line set just above the typical order lets a small run sell through without a sale price, and the threshold post shows how to set it from your own carrier costs.
Source: U.S. Census Bureau: County Business Patterns 2023, Multnomah County, Oregon
PDX handled 207,081 metric tons of air freight in 2025, down 11.4 percent from 2024. Do not read that as a delivery promise. Use it as a reminder to test your carrier's service from a Portland ZIP to your top five destinations and write the cutoffs into the cart.
Source: Port of Portland: PDX Monthly Traffic Report, December 2025
Portland has a concentration of food, drink and apparel makers that sell direct to shoppers, so a store here can build offers around products it makes itself and price them from its own margin rather than from a wholesale channel.
The City of Portland says the Clean Energy Surcharge is a 1 percent surcharge on Retail Sales within the City of Portland imposed on Large Retailers, effective for tax years beginning on or after Jan. 1, 2019.
City of Portland Revenue Division: Clean Energy Surcharge (accessed October 10, 2026)
The Revenue Division defines a Large Retailer as a business with Retail Sales of 1 billion dollars or more everywhere that also has Retail Sales of 500,000 dollars or more in Portland, and says the surcharge is calculated and filed on the CES Return.
City of Portland Revenue Division: Clean Energy Surcharge (accessed October 10, 2026)
The Census Bureau's Vintage 2025 estimate for the city of Portland, Oregon is 635,109 people, the 28th largest of the incorporated places in its city and town file.
U.S. Census Bureau: Annual Estimates of the Resident Population for Incorporated Places (Vintage 2025, SUB-EST2025) (accessed October 10, 2026)
The Port of Portland's December 2025 traffic report lists 18,563,132 enplaned and deplaned passengers at Portland International Airport for calendar year 2025, 6.0 percent more than the 17,518,499 in 2024.
Port of Portland: PDX Monthly Traffic Report, December 2025 (accessed October 10, 2026)
The same report lists 207,081 metric tons of enplaned and deplaned air freight at PDX for calendar year 2025, 11.4 percent below 2024.
Port of Portland: PDX Monthly Traffic Report, December 2025 (accessed October 10, 2026)
County Business Patterns 2023 lists 27 establishments in coffee and tea manufacturing (NAICS 311920) in Multnomah County, Oregon.
U.S. Census Bureau: County Business Patterns 2023, Multnomah County, Oregon (accessed October 10, 2026)
County Business Patterns 2023 lists 21 establishments in apparel manufacturing (NAICS 315) in Multnomah County, Oregon.
U.S. Census Bureau: County Business Patterns 2023, Multnomah County, Oregon (accessed October 10, 2026)
The Portland Rose Festival's site lists the 2026 Grand Floral Starlight Parade for June 6, 2026, 6:30 p.m. to 10:30 p.m., and had no 2027 dates posted when this page was written.
Portland Rose Festival: Grand Floral Starlight Parade 2026 (accessed October 10, 2026)
Not tax advice. Confirm current rules with the state revenue department before you rely on a date or an exemption.
Requires: Growth plan or higher.
