Burger King is in merger talks with Canadian coffee chain Tim Hortons.
The combined company would be the world's third-largest fast food chain. While both brands would continue to operate independently, the merger would allow Burger King to potentially cut its tax bill.
It's called an "inversion", merging with a foreign company and relocating headquarters outside of the U.S. The U.S. has the highest corporate tax rate among developed countries.
At least 47 companies have done it over the last decade.
Burger King is currently headquartered in Miami.
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