Why Interactive Brokers for Norbert's Gambit?

Interactive Brokers Canada is the lowest-cost retail option for Norbert's Gambit at scale (using the same Global X US Dollar Currency ETF, formerly Horizons, with tickers DLR/DLR.U on TSX). Their tiered commission structure works out to roughly $1.00 per leg on most trades — about a tenth of the cost on Questrade or RBC Direct Investing.

For amounts above CA$50,000, IBKR offers an even more attractive option: IDEALPRO direct FX conversion, which bypasses the ETF mechanic entirely and converts CAD to USD at the institutional interbank rate plus a tiny commission (typically 0.002% of the trade value (2 basis points), $2 minimum). For sums above CA$100,000, IDEALPRO is the cheapest path period.

The catch: IBKR's platform has a steeper learning curve than mainstream Canadian brokers. The Trader Workstation (TWS) interface is dense and designed for active traders. For occasional Gambit users, the learning investment may not be worth it under CA$30,000 in annual conversion volume.

Prerequisites

  1. An IBKR Canada account, funded with CAD. Account types: Individual, Joint, Trust, IRA-equivalent registered accounts (TFSA, RRSP).
  2. Margin enabled if you want to use IDEALPRO FX. Cash-only accounts cannot trade IDEALPRO.
  3. Access to TWS, IBKR Mobile, or IBKR Lite. TWS is most powerful; IBKR Lite is the simplified web interface.

The minimum to open an account is CA$0 — IBKR has no minimum balance requirement for Canadian accounts as of 2026.

Method A: DLR/DLR.U Gambit

Identical to other brokers but with IBKR-specific quirks:

  1. Buy DLR on TSX from your CAD cash. Limit order; commission ~CA$1.
  2. Wait for T+1 settlement.
  3. Submit a Currency Conversion request via TWS — Account Window → Currency Conversion. IBKR processes journals nearly in real time (seconds to minutes), much faster than other Canadian brokers.
  4. Sell DLR.U on TSX in your USD sub-account. Limit order; commission ~CA$1.

Total commission: ~$2. Bid-ask spread on a typical 3,650-share trade: ~CA$60. Total all-in cost on a CA$50,000 Gambit: roughly CA$62 (0.12%).

Method B: IDEALPRO FX direct conversion

For amounts above CA$50,000, IDEALPRO is faster, simpler, and cheaper:

  1. Open TWS → Trade → FX Trader.
  2. Select USD.CAD pair.
  3. Enter the CAD amount you want to convert.
  4. Place a market or limit order. Execution is typically immediate at the prevailing institutional rate.

The commission is the lesser of $2 USD or 0.002% of trade value (2 basis points). For a CA$100,000 conversion, the total cost is $2 — about 0.002% all-in. There is no settlement delay and no ETF journal step.

💡 The catch: IDEALPRO requires margin to be enabled on your account, even if you don't trade on margin. This is a regulatory requirement, not a financing requirement. Once enabled, you can use IDEALPRO without taking on any actual margin debt.

Total cost comparison: IBKR vs other Canadian brokers

Broker / MethodCost on CA$50,000 outboundNotes
IBKR IDEALPRO FX~CA$2Institutional rate, real-time
IBKR DLR/DLR.U Gambit~CA$62$2 commission + ~$60 spread
Disnat (Desjardins)~CA$20$0 commission + ~$20 spread
Questrade~CA$302 × $9.95 + spread
RBC Direct Investing~CA$252 × $9.95 + spread
Wise~CA$3000.6% transparent fee
Canadian bank wire~CA$1,5002.5-3% spread + wire fee

At CA$50,000+ volume, IDEALPRO is unbeatable. Below that, Disnat's $0 commission Gambit is cheaper because IBKR's spread on DLR/DLR.U is not meaningfully smaller than Disnat's.

Pitfalls specific to IBKR

Related guides

Interactive Brokers Canada FAQ

For amounts above CA$50,000, yes — IBKR's IDEALPRO FX direct conversion costs $2 total, beating every other option. For smaller amounts, Disnat (Desjardins) at $0 commission is cheaper because IBKR's bid-ask spread on DLR is not meaningfully smaller.
Yes — IDEALPRO is technically a margin-account feature, even if you never borrow. Enable margin trading in your IBKR account settings. You can use IDEALPRO without ever taking on actual debt.
The DLR/DLR.U method takes 2-3 business days because of T+1 settlement on each leg. IDEALPRO FX is real-time — conversion executes in seconds at the institutional rate.
Yes. IBKR supports Canadian registered accounts (TFSA, RRSP, FHSA). The DLR/DLR.U Gambit works identically inside registered accounts. IDEALPRO FX is also available in registered accounts that have margin enabled — confirm with IBKR support.
TWS has a learning curve. For converting CAD to USD once or twice a year under CA$30,000, Questrade or Disnat are easier and similarly cheap. Above CA$50,000 annual conversion volume, IBKR's cost savings justify the learning investment.