- Short answer
- Shopify Payments counts the UTC posting date, not the order date — a December 31 order posting January 1 lands on next year's 1099-K.
- If you still disagree
- Shopify Support can help confirm which transactions the form included.
- Shopify Payments only
- This form covers transactions processed through Shopify Payments in the United States.
- Column name not documented
- The tax-reporting page we read on August 15, 2026 does not name the export column that carries the posting date.
Why didn't my December order show up on this year's 1099-K?
Your store report and the form draw the year's line at different moments. On Shopify Payments in the United States, the report follows the order; the form follows the payment.
Your 1099-K is based on when transactions posted to your Shopify Payments account in the UTC timezone, not when the order was placed.
Shopify names the case merchants ask about: an order placed on December 31 but posted on January 1 falls outside that year's form and appears on the following year's form instead.
Where to check which year a transaction landed in
To see which transactions Shopify counted, download its own list: in your admin go to Finance > Payouts, click Payouts, then View order transactions, Export, select 1099-K Transactions, choose your date range and click Export items. You can export those transactions only if a Form 1099-K has been issued to your Shopify Payments account. The store owner, or staff with the View tax documents permission, can download that export. Export the year the form covers. That export lists the transactions Shopify counted for that form. Several stores under one TIN are a separate case.
The Shopify tax-reporting page we read on August 15, 2026 gives those steps but does not name the column carrying the posting date — you read the file's contents, not a field. How this belongs on your return is your accountant's call.
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