The Sundance Film Festival says its 2027 edition runs January 21 to 31 in Boulder, its first in Colorado, and the City of Boulder says it is welcoming the festival for the same dates. The city's own calendar has two more fixed points: the Bolder Boulder 10K is announced for Memorial Day, May 31, 2027, and CU Boulder's fall 2027 classes begin on Thursday, August 19. Boulder also collects a city sales tax of 3.86 percent, which the city's rate table puts at 9.195 percent combined with state, county and transit taxes. This page puts those three dates and the tax rule together and builds one custom gift offer for each.
Build the festival offer first. Choose a trigger that fits your catalog, such as a cart value or a named product, pick a gift, and set the dates to January 21 and January 31. Sundance and the City of Boulder both give those dates for the festival.
Source: Sundance Institute: 2027 Sundance Film Festival to take place January 21-31 in Boulder, Colorado
Say in the banner whether tax is included. Boulder's table lists a city tax of 3.86 percent and a 9.195 percent total, so a 100 dollar sale inside city limits carries 9.195 dollars of tax in all, which the checkout adds to the offer's headline price.
Source: City of Boulder: Tax Rates & Types (rates as of Oct. 10, 2026)
Run a test order to a Boulder address and look at the tax line. The city says delivery charges are subject to Boulder sales and use tax, so a shipping fee on the order is taxed along with the goods.
Plan a second, shorter offer for race week and finish it ahead of Memorial Day, May 31, 2027. The race site, read from the Internet Archive's copy of its home page, announces that date, so check the live site again closer to the day.
Source: BOLDERBoulder 10K (official site, Internet Archive copy of Aug. 13, 2026)
Run the move-in gift as a one-week offer that ends on August 19, the day CU Boulder's calendar lists for fall classes to begin.
Source: University of Colorado Boulder: Fall 2027 Classes Begin
Ask the city's tax staff about licensing before you promote. The city's guides say that making more than one delivery into the city within a twelve-month period counts as being engaged in business there, and its page says sales tax licenses are required from both the city and the state for businesses to operate in Boulder. Festival-week gift orders shipped into the city may count toward that.
Build it with the Custom gift offer template.
The festival runs January 21 to 31, 2027, which is eleven days. A gift offer that opens on the first day and closes on the last has a stop date every shopper already knows, so it never turns into a permanent discount.
Source: Sundance Institute: 2027 Sundance Film Festival to take place January 21-31 in Boulder, Colorado
The Bolder Boulder is announced for Memorial Day, May 31, 2027. Shipping to a race-day shopper means the order has to arrive before the weekend, so end the offer well ahead of the date and say in the banner when the last order ships.
Source: BOLDERBoulder 10K (official site, Internet Archive copy of Aug. 13, 2026)
CU Boulder's fall classes begin on August 19, 2027. A gift offer for students and parents can start the week before and end the day classes begin, with the gift chosen for a dorm room or a first apartment.
Source: University of Colorado Boulder: Fall 2027 Classes Begin
Boulder's year now has three fixed points a store can plan around: a festival that moves in for eleven days in January, a Memorial Day road race, and the first day of fall classes at the university.
Sundance's February 24, 2026 announcement says the 2027 Sundance Film Festival takes place January 21 to 31, 2027 in Boulder, Colorado, and calls it the festival's Colorado debut and the first time it welcomes global audiences to its new location.
Sundance Institute: 2027 Sundance Film Festival to take place January 21-31 in Boulder, Colorado (accessed October 10, 2026)
The City of Boulder's festival page welcomes the festival from Jan. 21 to 31, 2027, links a transportation guide and an operations guide for permits and special events, and says safety measures will be in place before January 2027.
City of Boulder: 2027 Sundance Film Festival (accessed October 10, 2026)
The Bolder Boulder's home page, as saved by the Internet Archive on August 13, 2026, invites runners to register for next Memorial Day, May 31, 2027.
BOLDERBoulder 10K (official site, Internet Archive copy of Aug. 13, 2026) (accessed October 10, 2026)
CU Boulder's events calendar lists Fall 2027 Classes Begin on Thursday, August 19, 2027.
University of Colorado Boulder: Fall 2027 Classes Begin (accessed October 10, 2026)
The city's current rates table lists Boulder's sales tax at 3.86 percent, added to 2.90 percent state, 1.335 percent county and 1.10 percent RTD for a 9.195 percent total, and notes that Boulder County's rate changed from 1.185 to 1.335 percent as of January 1, 2026.
City of Boulder: Tax Rates & Types (rates as of Oct. 10, 2026) (accessed October 10, 2026)
The same page says sales tax licenses are required from both the city and the state for businesses to operate in the City of Boulder, that city tax applies to sales made inside city limits, and that city taxes are remitted directly to the City of Boulder.
City of Boulder: Tax Rates & Types (accessed October 10, 2026)
The city's tax compliance guides quote section 3-1-1 of the Boulder code, under which engaged in business in the city includes making more than one delivery into the city within a twelve-month period, and list making retail sales sufficient to meet the definition of economic nexus as a trigger for a vendor.
City of Boulder: Tax Compliance Guides (accessed October 10, 2026)
The city's tax compliance guides say that transportation or delivery charges are subject to Boulder sales and use tax, and that a sale can be exempt when the items are shipped outside the City of Boulder and the vendor keeps evidence of the shipment.
City of Boulder: Tax Compliance Guides (accessed October 10, 2026)
The Census Bureau's Vintage 2025 estimate puts the population of Boulder city at 105,689.
U.S. Census Bureau: Annual Estimates of the Resident Population for Incorporated Places (Vintage 2025, SUB-EST2025) (accessed October 10, 2026)
Not tax advice. Confirm current rules with the state revenue department before you rely on a date or an exemption.
