One problem that keeps coming up for multichannel sellers: tax mismatches between Shopify and marketplace channels.
The usual setup looks like this: a marketplace collects and remits tax in a state, so you exclude those states in Shopify. But product tax categories, exemptions, and overrides still need to be right for direct orders. As facilitator rules shift, nexus thresholds change, or new products get added, collected tax, reported tax, and filed tax can drift apart quietly.
Curious how others are handling this:
- Relying on Shopify Tax alone, or using manual overrides?
- Reconciling across channels before filing, and how?
- Has a nexus or facilitator rule change ever caught you off guard?
The key is understanding that marketplaces like Amazon and Etsy are “marketplace facilitators” — they collect and remit sales tax on your behalf in most states. So you need to make sure Shopify Tax isn’t also collecting tax on those same orders, or you’ll be double-dipping and annoying customers.
In my setup, I’ve got Shopify Tax configured with my actual nexus states under Settings > Taxes and duties. For orders coming through marketplace channels, the marketplace handles the tax collection, so you shouldn’t be charging tax again on Shopify’s side. If you’re using marketplace integration apps that push orders into Shopify, check whether those orders are importing with tax already applied — if they are, you’re fine. If not, you might need to manually mark certain orders as tax-exempt or adjust the channel settings.
The tricky part is that Shopify doesn’t automatically know “oh this order came from Amazon, skip tax collection.” You sometimes need to create manual overrides for specific states or use tax-exempt tags on marketplace-originated orders. I go through my tax liability reports monthly (Analytics > Reports > US sales tax) and cross-reference against what the marketplaces report they’ve remitted. That’s the only way I’ve caught discrepancies before they become filing headaches.
Honestly the states where it gets messy are the handful that have weird marketplace facilitator thresholds or exceptions — worth checking your specific state rules rather than assuming every marketplace handles everything.