Is there a report option for what I was actually charged for shipments.

[shipping]

Is there a report option for what I was actually charged for shipments?
I know sometimes the amount I paid while creating the label is not what I'm actually being charged for, sometimes it’s a little less but usually a little more or a lot more. The additional charge usually happens at the time of delivery. Like the UPS driver measured the box wrong. Or it supposedly weighed more than it actually weighed.

if I said the box weighs 9 pounds and ups weighed it 9.5 pounds ups will charge me a fee of ~$11 fee for my error.

[TSRSM-John]

Are you using Shipstation's rates, or your own commercial account with UPS?

If using Shipstation's rates, you'll be billed or credited with an adjustment later on. This can potentially be a large adjustment if you aren't careful when entering your weights, I'm currently disputing a ~$1400 adjustment from Purolator for packages that were shipped in December!

If you're using your own courier account, you won't be able to generate a report through Shipstation. You'll need to review the bill you received from the courier. 

[shipping]

I use my own commercial account with ups.

[TSRSM-John]

Then you'll need to check your commercial invoice with UPS. I'm not sure for UPS specifically, but you should be able to download a CSV of your shipment data from your account.