Under Section 31 of the Securities Exchange Act of 1934, U.S. national securities exchanges are obligated to pay transaction fees to the SEC based on the volume of securities that are sold on their markets. Exchange rules require their broker-dealer members to pay a share of these fees who, in turn, pass the responsibility of paying the fees to their customers.

This fee is intended to allow the SEC to recover costs associated with its supervision and regulation of the U.S. securities markets and securities professionals. It applies to stocks, options and single stock futures (on a round turn basis); however, IB does not pass on the fee in the case of single stock futures trades.  Note that this fee is assessed only to the sale side of security transactions, thereby applying to the grantor of an option (fee based upon the option premium received at time of sale) and the exerciser of a put or call assignee (fee based upon option strike price).

For the fiscal year 2016 the fee was assessed at a rate of $0.0000218 per $1.00 of sales proceeds, however, the rate is subject to annual and,in some cases, mid-year adjustments should realized transaction volume generate fees sufficiently below or in excess of targeted funding levels.¹

Examples of the transactions impacted by this fee and sample calculations are outlined in the table below.

¹Information regarding current Section 31 fees may be found on the SEC's Frequently Requested Documents page located at: http://www.sec.gov/divisions/marketreg/mrfreqreq.shtml#feerate