EOM means End-of-Month. These are the sum of the transaction fees charged by USIO for credit card processing: 2.79% plus 15 cents per transaction for credit cards, and 1% plus 50 cents per transaction for ACH. These will need to be entered manually in Accounting, as they are not auto-posted. To view details of your EOM fees, go to Settings > BoosterHub Settings > View Receipts.