If you processed $20,000 in gross sales from goods or services AND completed more than 200 transactions
if you did you will be able to get it from this link. https://squareup.com/dashboard/business/taxes
here is a more in-depth article
If you didn't qualify you can get the relevant year sales from here. you can choose any time period you want and see your sales and fees.
https://squareup.com/dashboard/sales/reports/sales-summary
