If I, for tax reasons, turn my IB account into a LLC and a S-Corp, does that mean I have to notify IB and pay higher commissions and data fees?
Agreed with @qlai, your commissions should remain unchanged, but your data fees may change.
However, if you trade exclusively on CME options on futures, keep in mind CME has a non-professional self-certification process which allows small business entities to remain considered a "non-professional", so if you were considered a non-professional before, there is a good chance that you'll still fall under the same conditions even if operating the same way except with a business entity.
Yes, some brokers will just have you sign an affidavit attesting that you are independent and only trade your own funds.Agreed with @qlai, your commissions should remain unchanged, but your data fees may change.
However, if you trade exclusively on CME options on futures, keep in mind CME has a non-professional self-certification process which allows small business entities to remain considered a "non-professional", so if you were considered a non-professional before, there is a good chance that you'll still fall under the same conditions even if operating the same way except with a business entity.
Yes, some brokers will just have you sign an affidavit attesting that you are independent and only trade your own funds.
$169 per month for equity futures minium by cmeAnd what are the professional fees at CME?