If you are planning to rely on USD in Canada, you may like to reconsider. Although large retailers, tourist attractions, hotels and border crossings accept US currency, smaller and rural destinations may not. Travellers don't always consider the situations when the local currency is the only option.

In 2026, the US Dollar (USD) is technically not the legal tender of Canada, but it is widely accepted as a "convenience" in major border towns, large retailers, and high-value tourist destinations like Niagara Falls or downtown Toronto. However, using USD in Canada is often a "low-value" move for travelers because businesses typically set their own exchange rates, which are significantly worse than the bank rate (often 10–20% less favorable). Furthermore, you will almost always receive your change back in Canadian Dollars (CAD). For a peer-to-peer "win," it is highly recommended to use a credit card with no foreign transaction fees or to withdraw local CAD from an ATM. While a Canadian merchant might take your $20 USD bill for a $15 CAD sandwich, you are effectively paying a "convenience tax" that can quickly add up over a multi-day trip.