I have used the Amazon FBA calculator on their website which does not feature what they call a Per Item Fee. In my own inventory however, I can see that this fee appears based on a breakdown on items being shipped via FBA. I cannot understand why I didn’t see this fee on their calculator page.

After consulting support, they explained that I need to get a monthly subscription to avoid paying this fee per sale. But then if I do this, wouldn’t I be paying for selling on Amazon twice? Once via the monthly cost, and then again for FBA fees when items sell?

Can someone please clarify?

Thanks