If you have ever tried to run out for a weekly grocery shop late on a Sunday afternoon in England or Wales, you have likely run into locked doors. By 4:00 PM or 5:00 PM, major supermarket chains like Tesco, Asda, Sainsbury's, and Morrisons are wrapping up trade and closing down.

This stands in stark contrast to weekdays, when many of these stores are open from 6:00 AM or 7:00 AM until late into the night. So, why do supermarkets close so early on Sundays? The answer lies in a piece of legislation passed over three decades ago: the Sunday Trading Act 1994.

What is the Sunday Trading Act 1994?

Before 1994, shop opening hours on Sundays were highly restricted in England and Wales under older, archaic laws dating back to the early 20th century. The Sunday Trading Act 1994 was introduced to modernise and deregulate Sunday shopping while maintaining a compromise between consumer convenience and traditional rest days.

The law divides shops into two categories based on their size: large shops and small shops. The dividing threshold is 280 square metres (approximately 3,000 square feet).

"Under the Sunday Trading Act 1994, shops in England and Wales that exceed 280 square metres in size are restricted to a maximum of six consecutive hours of trade on Sundays."

How the Rules Apply to Large Supermarkets

For large supermarkets (like Tesco Extra, Asda Supercentres, Morrisons, Sainsbury's Superstores, Aldi, and Lidl), the following rules apply in England and Wales:

• Trading Limit: They can only open for a maximum of 6 consecutive hours.
• Time Window: These 6 hours must fall between 10:00 AM and 6:00 PM.
• Typical Opening Hours: Most large supermarkets choose to open from either 10:00 AM to 4:00 PM or 11:00 AM to 5:00 PM.
• Easter Sunday & Christmas Day: Large shops must close completely if Christmas Day or Easter Sunday falls on a Sunday.

Small Convenience Store Exemptions

Smaller convenience stores (under 280 square metres) are completely exempt from the Sunday Trading Act. This is why you will find local express formats open late:

• Tesco Express, Sainsbury's Local, and Co-op local shops can open for their normal hours on Sundays, which is typically 6:00 AM or 7:00 AM until 11:00 PM.
• These stores are also allowed to trade on Easter Sunday.

Scotland vs. England and Wales: A Different Law

It is a common source of confusion for travellers within the UK that Scotland operates under entirely different rules:

In Scotland, there are no statutory restrictions on Sunday trading. Supermarkets and retail shops of all sizes can open whenever they wish. Many large supermarkets in Scotland operate under normal or slightly reduced hours on Sundays (e.g., 8:00 AM to 8:00 PM or 10:00 PM), rather than being limited to just 6 hours.

In Northern Ireland, Sunday trading laws are similar to England and Wales but slightly more restrictive. Large shops are limited to opening for a maximum of 5 hours between 1:00 PM and 6:00 PM.

Summary of Supermarket Sunday Opening Times

To help you avoid being caught out, here is a quick summary of what to expect on Sundays depending on where you are:

Always remember to check our live Store Finder homepage to verify whether your local supermarket is open right now, especially if you are close to the morning opening or afternoon closing windows!