NSNexus by State

Colorado vs Kansas Sales Tax Nexus — Comparison 2026

Updated

Compare economic nexus thresholds, state and local rates, and filing rules in Colorado and Kansas.

MetricColoradoKansas
Economic nexus threshold$100,000$100,000
Transaction thresholdNoneNone
State rate2.90%6.50%
Avg. local rate4.99%2.21%
Combined state + local7.89%8.71%
Marketplace facilitatorYesYes
Effective since2018-12-012021-07-01

Which state is easier for sellers?

For low-revenue sellers: nexus triggers first in both states because of its threshold. If you cross that first, you register there first.

On rate: Colorado is friendlier for customers with a combined state + local rate of 7.89% vs 8.71%.

Neither state has a transaction-count trigger — only the dollar threshold matters.

Colorado — nexus note

Economic nexus in Colorado triggers at $100,000 in gross sales delivered into Colorado in the current or prior calendar year. No transaction count threshold.

Kansas — nexus note

Kansas sales tax nexus and economic nexus threshold: remote sellers and marketplace facilitators generally are not required to register, collect, and remit Kansas retailers' compensating use tax until they exceed $100,000 of Kansas sales in the current or preceding calendar year. Kansas uses a sales-only de minimis threshold -- no transaction-count test. KDOR guidance says responsibility begins with the next transaction after the $100,000 threshold is met and remote sellers should register within 30 days after crossing it. Kansas DOR source data last retrieved 2026-06-03.

What to do next

Use the nexus calculator to check exactly which of Colorado and Kansas you've already triggered. Then read each state's full guide:

Colorado overview →Kansas overview →

Frequently asked questions

Which state has the lower sales tax nexus threshold, Colorado or Kansas?
Both Colorado and Kansas publish the same economic nexus dollar threshold of $100,000, so a remote seller would reach each state's published threshold at the same level of in-state sales. These are the thresholds published by each state's tax authority as of 2026-06-03; confirm against the official source before registering.
Do both Colorado and Kansas have marketplace facilitator laws?
Yes. Both Colorado and Kansas have marketplace facilitator laws, so marketplaces such as Amazon, Etsy, and eBay collect and remit sales tax on the sales they facilitate in both states. Direct-to-consumer sales you make outside a marketplace remain your own responsibility once you cross each state's threshold. Verified 2026-06-03.
Which has the lower sales tax rate, Colorado or Kansas?
Colorado has the lower combined state and local sales tax rate at 7.89%, compared with 8.71% in Kansas. These are the statewide base rate plus the average local rate; the exact rate depends on the customer's delivery address. As of 2026-06-03.
Do I need to register for sales tax in both Colorado and Kansas?
It depends on where you cross each state's economic nexus threshold (or have physical presence there). Colorado's published threshold is $100,000, and Kansas's is $100,000. You generally register in a state only once you cross its threshold, so you may have an obligation in one, both, or neither. Run the nexus calculator with your actual sales and confirm with each state's official source. Thresholds as of 2026-06-03.
When did economic nexus take effect in Colorado and Kansas?
Colorado's economic nexus rule took effect on 2018-12-01, and Kansas's took effect on 2021-07-01. Both stem from the 2018 South Dakota v. Wayfair Supreme Court decision, which let states require remote sellers to collect once an economic threshold is met.

Sources

date_retrieved: Colorado 2026-05-16 · Kansas 2026-06-03