I can't find a definitive answer on this. This page of IB commissions appears to say there's no such fee (for North American options at least; Euro options might have some). And this page of cancellation / modification fees only gives examples for Stocks and Eurex Futures (options not mentioned at all.) I modify prices frequently to try and work my order prices, especially for less liquid options. And I'll often cancel if I can't get a decent fill (which happens regularly). Might I have been getting charged fees each time?
Why don't you look at your activity and fee statements? To my knowledge IB passes through cancelation and modification fees. There is a threshold established by several exchanges as far as I know. If you exceed that in terms of number cancelations or modifications then you get charged.
You only have to worry about fees if you do non-SMART API orders. If you do only SMART orders or you don't use the API, you won't be charged fees for modify/cancel.
As far as I know when I was with IB, no, there is no cancellation fees for North American options orders. Dunno about it now.
I did pull up one of my recent Statement reports, and expanded the Fees section, and the only thing listed there was the market data packages I subscribe to. I also checked the commissions for each of my trades (to make sure they're not being 'bundled' there), but I eyeballed a bunch of those, and they seem to match what IB's trade commissions page suggested they should be for each exchange. So I think I'm good -- just wanted to be sure they're not intentionally burying these things somewhere completely illogical. I use the API but only to stream data into Excel and send inactive (SMART) orders to TWS, where I review and submit them manually. Doesn't sound like I have to worry. Thanks. I found very old posts (<2012) suggesting they might have at one time, but don't appear to anymore.
What @ET180 was referring to is whether you submit specific exchange directed orders or whether you use IB smart for order routing. With the former you will incur fees if you cancel or modify too often. With the latter you won't.
Source? The repliers ITT thus far have suggested they don't (except for exchange-directed / non-SMART orders discussed above)?