Retail rota software usually treats Sunday like any other day: it fills shifts from whoever is available and contracted. Shop and betting workers in Great Britain have a specific statutory right that the software needs to know about. Under Part IV of the Employment Rights Act 1996, they can opt out of Sunday work by giving written notice, and some long-serving staff are protected without doing anything. These rights apply to employees.
The short answer: a shop or betting worker who may be required to work on Sundays, and is not employed to work only on Sundays, can give the employer a signed and dated written notice objecting to Sunday working (s40). Once the notice period has passed, three months under the provisions in force, the contract cannot require Sunday work (s43). Opted-out and protected workers must not be subjected to a detriment or dismissed for refusing Sunday work (ss45 and 101).
Who is covered
A shop worker is an employee who, under their contract, is or may be required to do shop work: work in or about a shop on a day when it is open for serving customers (s232(1) and (2)). A shop includes any premises where a retail trade or business is carried on, including barbers and hairdressers, but not catering businesses (s232(3) and (6)). The Act also covers betting workers at tracks and licensed betting offices.
Some workers are "protected" without giving notice: broadly, those continuously employed as shop workers since before 26 August 1994 (3 January 1995 for betting workers, and later dates in Scotland), and anyone whose contract does not and may not require Sunday work (s36(2), (3) and (7)). A protected worker loses that status only by giving a signed, dated opting-in notice and then expressly agreeing to work on Sunday or a particular Sunday (s36(5) and (6)).
Opting out
A shop or betting worker who is or may be required to work on Sunday, but is not employed to work only on Sunday, may at any time give the employer written notice, signed and dated, that they object to Sunday working (s40). This is an opting-out notice. The worker is then "opted-out" while continuously employed as a shop or betting worker, unless they later give an opting-in notice and expressly agree to Sunday work (s41(1) and (2)).
The notice period is three months beginning with the day the opting-out notice was given (s41(3)). It is one month instead if the employer failed to give the statutory explanatory statement within two months of the person becoming a worker to whom section 40 applies, unless the worker had already opted out within that time (s42(1) to (3)). The Enterprise Act 2016 inserted different rules, including a one-month period for large shops, but section 44 of that Act brought them into force only for the purpose of making regulations (Enterprise Act 2016, s44(1)(d)). On 1 November 2026 legislation.gov.uk listed no further commencement, so this page quotes the earlier text. Check the current position before relying on it.
After the notice period, the contract becomes unenforceable to the extent that it requires the worker to do shop or betting work on Sunday, or requires the employer to provide it (s43(1)). During the notice period the employer can still require the Sunday work the contract provides for.
Protection from detriment and dismissal
A protected or opted-out employee has the right not to be subjected to a detriment by the employer for refusing, or proposing to refuse, Sunday work, other than Sundays within the notice period, and any shop or betting worker is protected from detriment for giving or proposing to give an opting-out notice (s45(1) to (3)). A complaint about a detriment goes to an employment tribunal (s48). Dismissal for those reasons is automatically unfair (s101).
There are limits. It is not a detriment to be unpaid for Sunday work not done, or to receive less of a benefit that varies with hours worked or pay. Nor is it a detriment to miss out on a premium offered only to those who agree to work Sundays (s45(5) to (8)).
That matters for automated rotas. A system that lowers someone's priority for weekday shifts, overtime or preferred hours because they have opted out of Sundays, or flags them as "less available", risks treating them to a detriment. A system that simply does not pay them for Sundays they do not work does not.
Practical steps
- Employers: record opting-out notices and their dates, and set the rota tool so that opted-out and protected staff are not scheduled for Sundays once the notice period ends. Make sure availability scores and shift allocation rules do not count Sunday opt-outs against anyone. Give the explanatory statement to new staff who may have to work Sundays.
- Workers: to opt out, write to your employer saying that you object to Sunday working, then sign and date the letter and keep a copy. Expect to work contracted Sundays during the notice period. If your hours or shifts drop after you opt out, raise it in writing. For other limits a rota must respect, see the 48-hour week and night work limits and UK rules on software-set rotas.
These provisions extend to England, Wales and Scotland. This page is general information on the law in Great Britain as at 1 November 2026, not legal advice.
Questions and answers
Can a shop worker refuse to work on Sundays?
A shop or betting worker who is not employed to work only on Sundays can give a signed, dated written notice objecting to Sunday working; after the notice period the contract cannot require Sunday work (Employment Rights Act 1996, ss40 and 43).
How long is the notice period?
Three months from the day the notice is given, or one month if the employer did not give the statutory explanatory statement, under the provisions in force (ss41(3) and 42). Different rules inserted in 2016 have not been brought fully into force.
Can my employer cut my hours because I opted out of Sundays?
A protected or opted-out worker must not be subjected to a detriment for refusing Sunday work after the notice period, and dismissal for that reason is automatically unfair (ss45 and 101). Losing pay for Sundays not worked is not a detriment (s45(5)).
Who is a protected shop worker?
Broadly, someone continuously employed as a shop worker since before 26 August 1994 (later dates for betting workers and in Scotland), or whose contract does not and may not require Sunday work (s36).