What's Etsy Offsite Ads' Attribution Window in 2026?

Etsy Offsite Ads use a 30-day attribution window in 2026. If a shopper clicks an Offsite Ad and completes a purchase from that seller's shop within 30 days, Etsy attributes the sale to the ad and charges the seller an Offsite Ads fee — even if the eventual purchase is for a different item than the one originally clicked.

Multiple Orders Inside One Window Can All Be Billed

Because the window covers 30 full days rather than a single transaction, more than one order from the same shop can be attributed to the same original ad click if the shopper returns and buys again within that period. Each qualifying order placed inside the 30-day window can incur its own separate Offsite Ads fee, which means a single successful ad click has the potential to generate several billable events rather than just one — a dynamic that doesn't exist on pay-per-click platforms where the advertiser sets a bid upfront rather than being billed after the fact per attributed order.

Why This Window Is Longer Than Most Retail Media Platforms

At 30 days, Etsy's Offsite Ads window runs longer than the 14-day defaults used by Instacart Ads and Walmart Connect Sponsored Products, and matches the 30-day click-through defaults used by platforms like Taboola, Google Ads, and Display & Video 360's Floodlight activities. Etsy's marketplace is built around handmade, custom, and gift-oriented purchases, which often involve a longer consideration period than a routine grocery reorder — a longer attribution window fits that slower-moving purchase pattern more closely than a shorter retail-media-style window would.

What This Means for Sellers Evaluating Offsite Ads Costs

Because Offsite Ads is a mandatory program for sellers who cross Etsy's annual sales threshold and operates on this attribution-then-fee basis rather than a bid an advertiser controls upfront, the 30-day window is worth watching closely when reconciling shop finances: a spike in Offsite Ads fees in a given period may trace back to ad clicks that happened weeks earlier, not to anything that changed about the shop that same week. Sellers reviewing a month-end statement should look at click activity across the prior 30 days, not just the billing period itself, to understand where a fee actually originated.

A Structural Difference From Bid-Based Advertising

Unlike Google Ads or Meta, where an advertiser sets a maximum bid and only pays when that bid wins an auction, Offsite Ads' fee is calculated as a percentage of the order value after the sale already happened, and it only exists because the 30-day attribution window connected that sale back to an ad click. That makes the attribution window itself the mechanism that determines whether a fee applies at all, not just how it's measured.

Bottom Line

When an Offsite Ads fee shows up on a shop's statement, check ad-click activity going back a full 30 days rather than just the days immediately before the order — that's the actual window Etsy uses to make the attribution call.

Sources: Etsy Help Center, "How Etsy's Offsite Ads Work."