Are there added spreads or markups for cryptocurrency trades?

IBKR offers competitive commissions on spot currency trades and conversions, starting at 0.20 basis point * trade value, with a minimum of 2.00 USD (or USD currency equivalent) per order.

Commissions for spot currency trades are calculated off the trade value in terms of the second currency of the pair and then converted and charged to the base currency of the account…

Cryptocurrency trading with Cryptocurrency Service Providers on Interactive Brokers’ trading platforms has a low commission of just 0.12% to 0.18% of trade value.^* Interactive Brokers does not add spreads, markups, or custody fees.

*Based on client monthly trading volume. The minimum commission per order: $1.75. The maximum commission per order: 1%…

No. Cryptocurrency trading with Cryptocurrency Service Providers through IBKR's platform has a low commission of just 0.12% to 0.18% of trade value* with a USD 1.75 minimum per order. IBKR does not add spreads, markups, or custody fees. Such additional fees might be added by your intermediary if you have appointed one (for example, a Financial Advisor).  …

Cryptocurrency trading on Interactive Brokers’ platform has a low commission of just 0.20% to 0.30% of trade value depending on monthly trade volume with a USD 2.25 minimum per order.

A monthly custody fee of 8 basis points will also be charged on the average daily value of cryptocurrency held in your account. …