How can I find out total number of transactions (Sales) for Year to Date

Thanks for visiting the Community, @info1836. I'd be glad to show you how we can locate the total number of y our sales transactions.

We can go to the Sales menu to check the total number of your sales. Let me show you how.

1. Hover your mouse cursor to Sales on the left navigation bar.
2. Choose All Sales.
3. Click the Filter dropdown to customize the date from year to date.
4. Select Apply.
5. Then on the upper right side, you'll see the total number of sales transactions.

I've also added a screenshot for visual reference:

Additionally, you can refer to this article, if you want to run transaction reports: Run reports in QuickBooks Online. 

If you have any other QuickBooks-related concern, please let me know in the comment section. I'll be happy to assist you. Have a good one!