This sounds just like what you would report if you received a 1099-NEC direct from your broker, only you are being paid by the LLC rather than your broker.
For tax filing you would include the amount on the 1099-NEC as income. If the fees are not included in the income listed on the 1099-NEC and you did not reimburse the LLC then you would not be able to deduct them as an expense. This income would be handled by the LLC.
If the fees are included in the 1099-NEC and you had to pay them back then you can deduct them as an expense.
