Chick-fil-A has been closed every Sunday for 80 years, and CEO Andrew Cathy says he has never even calculated what that costs. Speaking to NBC's Today co-anchor Craig Melvin in an October 14 interview for the network's Business in America series, Cathy said the policy is simply too important to the company to reconsider.

Cathy is the grandson of founder S. Truett Cathy and has led the privately held company since 2021, succeeding his father, Dan Cathy. He describes the policy as a luxury that family ownership makes possible. The company is not trying to squeeze out every possible penny, he said, and being a private family business means it can make investments that matter deeply to its team members.

The rule dates back to 1946, when Truett Cathy opened his first restaurant in Hapeville, Georgia. After working seven days a week in restaurants that never closed, he wanted himself and his employees to have one day to rest, spend time with family or worship if they chose. In the 1940s, Andrew Cathy noted, it was common for businesses to close on Sundays, and the company simply kept the tradition as many others moved on.

The exceptions have been rare. In 2017, the chain opened on a Sunday to feed travelers stranded at Atlanta's Hartsfield-Jackson airport during a power outage. It has also faced outside pressure, including a 2023 New York bill that sought to require restaurants at state highway rest stops to stay open seven days a week.

The business results make the case for patience. Chick-fil-A posted U.S. systemwide sales of $23.9 billion in 2025, up about 5% from $22.7 billion in 2024, according to its franchise disclosure document, making it one of only three U.S. restaurant brands above $20 billion. The other two, McDonald's and Starbucks, have far more locations and are open every day. Chick-fil-A added a net 179 restaurants last year to end 2025 with 2,863, excluding more than 400 licensed sites on campuses and in hospitals, and consolidated revenue topped $10.3 billion.

Where it stands out most is per-store sales. The roughly 2,300 freestanding and drive-thru-only restaurants open all year posted median sales of about $9.1 million in 2025, slightly below $9.2 million in 2024 and $9.3 million in 2023, while the top-grossing restaurant reached $20 million.

Analysts have tried to price the policy. Estimates cited in 2019 put the Sunday closure at no less than $1.2 billion a year in lost sales, when the chain was about half its current size, and a simple calculation with 2025 figures suggests a theoretical ceiling near $4 billion. In practice, a seventh day would probably not deliver a clean one-sixth bump, since some Sunday demand already shifts to Saturday and Monday, and observers have long argued that the scarcity strengthens the brand and drives traffic on the other six days.

The people equation matters just as much, Cathy suggests. A guaranteed day off is a rare promise in an industry where schedules often span seven days. It also helps explain why operating a Chick-fil-A is so sought after: the company receives about 150,000 franchise applications a year and opens roughly 150 restaurants annually. Opening on Sundays would mean asking operators and crews to give up the one day the company has guaranteed for eight decades, and Cathy made clear he is not willing to ask. For leaders, the lesson is that a clear, consistent principle can become both a culture anchor and a competitive advantage.