Connecticut Marketplace Facilitator Sales Tax Rules — 2026
Use this Connecticut marketplace facilitator sales tax guide to check 2026 rules, collection requirements, effective-date notes, threshold counting, and how Amazon, Etsy, eBay, DoorDash, and Uber Eats orders differ from direct-store sales. Direct channels still use the $100,000 or 200 transactions threshold.
Connecticut's marketplace facilitator law
Connecticut has a marketplace facilitator law: marketplaces (Amazon, Etsy, eBay, Walmart Marketplace) calculate, collect, and remit sales tax on your behalf for transactions they facilitate to Connecticut buyers.
This significantly reduces your compliance burden if you sell primarily through marketplaces. But it does not exempt you from registering if you also have direct channels (your own store, wholesale, trade shows, etc.).
Key distinctions
- Facilitated sales (collected by the marketplace): you generally don't collect or remit.
- Direct sales (your own checkout): your responsibility as before.
- Informational filings may still be required depending on Connecticut's rules, even on marketplace-facilitated volume.
- Most states exclude marketplace-facilitated sales from your economic nexus threshold calculation, but double-check Connecticut specifically before assuming.
Marketplace-specific gotchas in Connecticut
- Not every platform you sell on is legally a marketplace facilitator. Shopify's store platform is not — you are the seller of record. Shopify's Markets Pro is. Verify per platform.
- Wholesale sales through a marketplace are usually NOT marketplace-facilitated — the marketplace is a payment conduit, not the seller. Direct-collect obligations still apply.
- Returning customers and refunds: if the marketplace remitted tax and you process a refund outside the marketplace, the refund usually needs to flow through the marketplace to trigger the tax reversal. Off-marketplace refunds create reconciliation headaches.
Connecticut nexus note
Economic nexus in Connecticut requires BOTH more than $100,000 in gross sales AND more than 200 separate transactions delivered into Connecticut in the prior year. Both thresholds must be met.
What to do next
Read the full Connecticut overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.
Frequently asked questions
- Which marketplaces collect Connecticut sales tax?
- Amazon, Etsy, eBay, Walmart Marketplace, and most similar marketplaces collect Connecticut sales tax on transactions they facilitate. Your direct-to-consumer sales (Shopify, website, wholesale) are your responsibility.
- Is Etsy a marketplace facilitator in Connecticut?
- Yes — Etsy meets the marketplace facilitator definition in Connecticut and collects Connecticut sales tax on facilitated orders. Etsy sellers don't collect tax on those Etsy transactions, but direct (off-Etsy) sales remain the seller's responsibility.
- Is eBay a marketplace facilitator in Connecticut?
- Yes — eBay is a marketplace facilitator in Connecticut and collects, files, and remits Connecticut sales tax on its facilitated transactions. The seller still tracks listings for income tax and resale-certificate purposes.
- Is DoorDash a marketplace facilitator in Connecticut?
- Yes — DoorDash collects Connecticut sales tax on delivery orders it facilitates and remits to the Connecticut DOR. Restaurants and merchants typically receive remittance reports rather than collecting on those orders themselves.
- Is Uber Eats a marketplace facilitator in Connecticut?
- Yes — Uber Eats acts as a marketplace facilitator in Connecticut for the orders it processes, collecting and remitting the applicable Connecticut sales tax on the food and delivery charges it bills.
- Do marketplace sales count toward my Connecticut nexus threshold?
- In most states, marketplace-facilitated sales are EXCLUDED from the economic nexus threshold calculation. But Connecticut may differ — verify before assuming.
- Does Shopify qualify as a marketplace facilitator?
- Standard Shopify (your own standalone store) does NOT qualify — you're the seller of record. Shopify Markets Pro, however, does qualify as a marketplace facilitator in many states.
Sources
date_retrieved: 2026-05-31