You can deposit Canadian money in a US bank, but only in person at a branch of a bank that handles foreign currency, and the conversion will cost you through the exchange rate the bank offers. Most large national banks accept current Canadian polymer banknotes and Canadian checks; coins, withdrawn paper series, ATMs, and mobile deposit apps are all off the table. Checks written in Canadian dollars take the longest to clear and carry the most fees.
What Canadian Currency US Banks Will Take
Large national banks generally accept Canadian banknotes in current circulation, meaning the polymer bills Canada has issued since 2011. Older paper series that the Bank of Canada has withdrawn are usually refused because banks can’t easily verify or resell discontinued notes. Canadian coins are typically rejected outright, and some banks also exclude low-denomination Canadian paper that’s no longer in production.
Canadian checks are a different animal, and the bank treats them differently depending on the currency printed on the face. A check drawn on a Canadian bank but denominated in US dollars can often be processed alongside regular deposits, since no conversion is needed. A check written in Canadian dollars gets routed to the bank’s foreign exchange department for conversion and international collection, which adds time and cost.
Smaller community banks, credit unions, and online-only banks are less likely to handle physical foreign currency at all. Some will only accept Canadian funds through an incoming wire transfer. Even at a major bank, not every branch keeps the necessary forms on hand, so call ahead before you drive over.
Why You Can’t Use an ATM or Mobile Deposit
You cannot deposit Canadian currency through an ATM or a mobile banking app. ATMs are calibrated for US bills and will either reject foreign notes or misread their value. Mobile check deposit is limited to checks drawn on US financial institutions, so Canadian checks are ineligible even when they’re written in US dollars.1Federal Reserve Financial Services. Foreign Check User Guide A branch visit is the only option through a traditional bank.
What to Bring to the Branch
Bring a valid government-issued photo ID (driver’s license or passport) and your account number. Banks verify identity under federal anti-money-laundering rules before processing any deposit, and foreign currency transactions can get extra scrutiny.
At the counter you’ll fill out a foreign currency deposit slip rather than the standard one. You list the foreign currency amount at face value; the teller calculates the US dollar total using the bank’s current buy rate, so you leave that portion blank. Canadian dollar checks have to be deposited separately from any regular US dollar items.
How Long the Money Stays on Hold
This is where a Canadian deposit diverges sharply from a domestic one. Regulation CC, the federal rule that caps how long a bank can hold a domestic check, explicitly excludes checks drawn on foreign banks and checks payable in foreign currency.2eCFR. 12 CFR Part 229 – Availability of Funds and Collection of Checks (Regulation CC) There is no regulatory ceiling on how long your bank can hold a Canadian check. The hold lasts until the bank is satisfied it has received final payment from the Canadian institution.
In practice, expect Canadian checks to take one to four weeks to clear. The Federal Reserve notes that some foreign institutions take longer than twenty business days to pass credit.1Federal Reserve Financial Services. Foreign Check User Guide US return-item deadlines don’t apply to foreign checks, so if a problem surfaces late, your bank has limited recourse and may pull back provisional credit. Physical cash usually clears faster since there’s no collection from a foreign bank, though even cash may take a day or two for the converted balance to appear.
What It Actually Costs
The biggest cost isn’t usually a line-item fee. It’s the exchange rate markup. Banks don’t offer the mid-market rate you see quoted online. They build a spread into the rate they give you, and that spread is where most of the profit sits. Bank of America describes its pricing as “all-in,” meaning the markup is embedded in the exchange rate with no separate disclosure.3Bank of America. Exchange and Order Foreign Currency from Bank of America Its Preferred Rewards clients can receive up to a 2% discount off the published rate, which gives you a rough sense of the standard spread.
On top of that, some banks charge flat processing fees for foreign items. US Bank charges a $6 fee on checks drawn on Canadian banks, plus any additional fees the foreign bank itself deducts from the proceeds.4US Bank. Consumer Pricing Information Flat fees at other institutions typically fall in the $5 to $15 range, and some banks add a percentage fee of 1% to 3% on top of the spread, particularly for larger amounts or checks that require international clearing.
On a CA$5,000 deposit, a 2.5% spread means roughly $125 less in your account than the mid-market rate would suggest. Banks that deal in higher foreign exchange volumes sometimes offer better rates to customers with larger balances or private banking relationships, though those thresholds are rarely published.
Reporting Rules for Deposits Over $10,000
Federal anti-money-laundering rules trigger automatically at deposits above $10,000 in currency. Your bank files a Currency Transaction Report with FinCEN for every currency transaction exceeding that threshold.5eCFR. 31 CFR 1010.311 – Filing Obligations for Reports of Transactions in Currency “Currency” under these rules includes foreign coins and paper money, so Canadian bills count at their US dollar equivalent.6FDIC. Currency Transaction Reporting The bank files the report, not you, and the filing doesn’t mean anything is wrong. It’s routine.
Do not break a large deposit into smaller ones to stay under the $10,000 line. That’s structuring, and it’s a federal crime regardless of where the money came from. Tellers are trained to watch for it.
Two related rules sit outside the bank counter but often catch the same people. If you physically carry $10,000 or more in currency across the US border, you have to declare it to Customs and Border Protection on FinCEN Form 105, with the threshold applying to a family or group’s combined total.7U.S. Customs and Border Protection. Money and Other Monetary Instruments And if you receive more than $10,000 in physical cash in the course of a trade or business, you file IRS Form 8300 within 15 days, converting foreign currency at a fair market rate.8Internal Revenue Service. Instructions for Form 8300 – Report of Cash Payments Over $10,000 Received in a Trade or Business
When an Exchange Gain Is Taxable
Most people don’t think of converting leftover vacation money as a taxable event, and for small amounts it isn’t. Under federal tax law, an individual’s personal transaction gain from converting Canadian dollars back to US dollars is tax-free as long as it stays under $200.9Office of the Law Revision Counsel. 26 USC 988 – Treatment of Certain Foreign Currency Transactions If the gain exceeds $200, the entire amount becomes taxable as ordinary income. Losses on personal foreign currency transactions are not deductible.
If a Canadian Check Bounces
A returned Canadian check creates more trouble than a domestic bounced check. Regulation CC’s protections don’t apply, so the deadlines and fee limits that shield US depositors don’t kick in.2eCFR. 12 CFR Part 229 – Availability of Funds and Collection of Checks (Regulation CC) If your bank credited the funds provisionally and the check later comes back unpaid, the bank reverses the credit. If you’ve already spent the money, you’ll be overdrawn.
The fees stack. US Bank charges its $6 processing fee whether the check clears or not, plus anything the Canadian bank deducts. If the reversal puts your account negative, overdraft fees can reach $36 per item.4US Bank. Consumer Pricing Information With a large Canadian check, the safest move is to leave the money alone until it has fully cleared, even if that means waiting several weeks.
Cheaper Alternatives to a Branch Deposit
If your bank doesn’t handle foreign currency, the branch is inconvenient, or you’re moving Canadian money regularly, other routes cost less.
- Wire transfer from a Canadian bank. If the money is already sitting in a Canadian account, wiring directly avoids physical currency entirely. Incoming international wire fees at US banks typically range from $0 to about $15, though intermediary banks may take their own cut. Transfers usually take one to several business days.
- Multi-currency digital platforms. Wise lets you hold Canadian dollars and convert at the mid-market rate with a disclosed fee starting around 0.41%, rather than an opaque spread. Transfers often arrive within a day. Revolut offers similar functionality but adds a markup to its exchange rate, and standard accounts pay extra for weekend conversions.
- Currency exchange at the border. A dedicated exchange business gives you cash in hand on the spot. Rates are worse than digital platforms but often comparable to or better than a bank’s spread, and you skip the hold times and paperwork.
For recurring Canadian income (freelance work, rental income, pension) a multi-currency account or regular wires will almost always beat the cost of walking Canadian checks or cash into a branch every month. The per-transaction savings on the exchange rate spread compound quickly.