Credits: DIANA MARTIN/QMI AGENCY
The price of a muffin will rise about five cents and the cost of a sandwich about 10 cents, spokesman David Morelli said.
A cup of coffee will remain the same.
The last time the chain raised its prices was in April 2011, due to a jump in commodity prices.
Tim Hortons was founded in Hamilton, ON, in 1964. It is now the country's biggest restaurant chain with more than 3,700 locations in North America.