How are commissions considered for purposes of the U.S. Securities Snapshot and Futures Bundle waiver?

Research and market data subscriptions are billed on a monthly cycle in advance and if you maintain a subscription for any period (even less than a full day) during the month, you will be obligated to pay as if you were subscribed for the entire month. The monthly billing cycle starts on the first U.S. business day of the month. Note that exchanges do not prorate subscription fees for mid-month elections nor do they offer refunds for subscriptions cancelled mid-month. …

Yes, if you cancel your subscription mid-month then you will receive market data until the last business day of the month. The monthly billing cycle starts on the first U.S. business day of the month.

If you subscribe and unsubscribe on the same day, you might not be charged if you never had that market data service before and did not make any trades…

Clients who subscribe to the European Equities and Derivatives Display Value Bundle are required to pay the monthly subscription fee prior to the service being activated. If a client generates monthly commissions of at least USD 35 this subscription fee will be waived. A determination as to whether a given account is eligible for this waiver is not made until the month concludes and a credit is generally not provided until the first week of the following month.  This credit can be verified via the Activity Statement available via Client Portal…

Account holders can designate a billing account from which all market data fees will be deducted.  We recommend that you select the account that generates the greatest level of commission activity if your subscription provides for fee waiver and should your monthly commissions reach a minimum threshold (e.g., U.S. Securities & Commodities Market Data Bundle). IBKR will only look to the activity conducted in the billing account to determine waiver eligibility rather than aggregating the commission activity across all linked accounts. …