on 01-24-2017 04:58 PM
I find the best year end reports are produced by PayPal, especially when all sales, ebay fees, and postage are paid through PayPal.
Updated screenshots for the 2018 PayPal personal account year-end data downloads. PayPal provides data in Intuit format too, so check the format options.
Review the drop down list on the date range before download because there is a bug where the dates may reset to Jan 1 - Jan 1 if you return to this page from another.
Depedning on how many transactions you have and how complicated your situation, you might be able to get by with simpler reports, sort-of the equivalent of the the 1040-EZ rather than regular 1040. PayPal produces a handy 2-page "Annual financial Summary" Report that has a line item not only for your total PayPal income but also for total refunds and PayPal fees paid. You can also run PayPal transaction reports on the keyword USPS to get your total postage purchased. No spreadsheets required!
To get your total eBay fees, you need to open your eBay invoices in My eBay > Account tab > Summary. You can open just half of them, since each invoice includes the previous month's total at the top.