A day in the life of a supermarket checkout assistant

This is a composite, built from supermarket job adverts, the National Careers Service job profile for sales assistants, and official guidance from GOV.UK and ACAS. "Alex" is not a real person, and the shift times are an example, not any one shop's rota. Every figure in this piece comes from a named source, listed at the end.

Working on the checkouts is a common first job. It looks simple from the other side of the belt. Once you are sitting at the till, you find it is a mix of speed, care and a lot of small decisions. Here is what a typical day looks like, and what you should know before you start.

What does a checkout assistant actually do?

A checkout assistant serves customers at the tills. You scan shopping, take payment, check ID for age-restricted items and help people who get stuck at the self-checkouts.

The National Careers Service groups this work under its sales assistant profile. Alongside the tills, it lists handling returns and refunds, unpacking stock, pricing items and keeping the shop clean. In most supermarkets, you do not stay on one till all day. You may be asked to fill shelves in a quiet hour, cover the kiosk or help on the customer service desk.

Supermarket adverts often use other job titles for the same work. Look out for:

• Customer assistant. The most common title at the big supermarkets. It usually covers tills and the shop floor.
• Store assistant. The title Aldi uses in its pay announcements.
• Customer advisor. Another title you will see on some supermarket adverts, often for store roles that include till work.

If you search only for "checkout", you will miss most of these jobs. Try our customer assistant search as well as our checkout jobs search.

What time does a checkout shift start?

It depends on the shop and your contract. Big supermarkets open early and close late, so there are early, day, late and weekend shifts.

The National Careers Service says a full-time sales assistant works 37 to 42 hours a week, with evenings, weekends and bank holidays on a rota. Many checkout jobs are part-time, though. Some contracts are just a few shifts a week.

Sundays are different in England and Wales. A large shop, over 280 square metres, can only open for six hours in a row between 10am and 6pm. Large shops must also close on Easter Sunday and Christmas Day.

In our composite day, Alex works an 8am to 4pm shift on a Saturday. That is eight hours, which matters later when we look at breaks.

How does the shift begin?

It starts before you sit down. You arrive a few minutes early, put your coat and phone in a locker, and check the rota to see which till you are on.

Signing on to the till

Alex logs on to the till with a staff code. Some supermarkets give you a float, a set amount of cash in the drawer, and ask you to count it. Others use tills where the customer feeds cash into a machine, so you handle less money yourself. Your manager will show you the system in your first week.

The first hour

The first hour of a Saturday is steady rather than busy. Early shoppers tend to be regulars who know what they want. It is a good time to learn where the price-check button is, how to void an item and how to call a supervisor. Alex also tidies the belt, restocks carrier bags and wipes down the scanner.

What is the busy part of the day like?

By late morning, the queues build. This is when the job feels fastest, and when your manners matter most.

Speed without rushing people

You learn a rhythm: scan, move the item on, keep an eye on the next customer. Speed matters, but good service counts just as much. A customer who is slow with their bags is not your problem to fix. A kind word keeps the line calm.

Many customers pay by card or phone. You still need to handle cash, count change back and spot notes that look wrong. If something does not look right, you call your supervisor. You never have to decide on your own.

Helping at the self-checkouts

In many stores, one colleague looks after a whole bank of self-checkouts. Sainsbury's careers site lists helping customers at the self-checkouts as one of the everyday tasks in its stores. The work is mostly clearing "unexpected item" alerts, approving age-restricted items and helping people who have scanned something twice.

It is a different skill to sitting on a till. You are on your feet, watching several screens at once and moving between customers. The National Careers Service warns that sales work can be physically demanding, and this is one reason why.

How do ID checks work on the till?

If a customer buys alcohol or another age-restricted item and looks under 25, you ask for proof of age. If they cannot show it, you do not make the sale.

This rule is called Challenge 25, and the Retail of Alcohol Standards Group created it. In England and Wales, shops that sell alcohol must have an age-check policy, and Challenge 25 meets that need. In Scotland, the group says it is compulsory for all licensed premises.

The scheme is not just for alcohol. Shops also use it for other age-restricted items, such as tobacco, knives, lottery tickets and painkillers.

What ID can a customer show?

Trading Standards' Business Companion guide for England and Wales lists these as acceptable:

The same guide says that if you are in any doubt, you should refuse the sale. It also says a shop worker who sells alcohol to someone under 18 can get a £90 penalty notice. That is why supervisors back you up when you say no.

If you are under 18 yourself

You can still work on the tills at 16 or 17. In England and Wales, though, you can only sell alcohol if each sale is specifically approved and you are supervised. In practice, this usually means calling a supervisor to check the customer and approve the sale.

Alex asks a young-looking customer for ID at about 11am. The customer is annoyed but shows a driving licence, and the sale goes through. Most refusals end that calmly.

When do you get a break?

If you are 18 or over and work more than six hours, you are entitled to one unbroken 20-minute break. Whether that break is paid depends on your contract.

Young workers get more. Here are the legal minimums from GOV.UK:

These are minimums. Some employers give longer breaks on long shifts, and some pay for them. Aldi says it offers paid breaks to all colleagues, worth about £1,500 a year to its average store colleague.

Alex's eight-hour shift means a break around midday. Tell your supervisor when your break is due, because on a busy Saturday the time can slip past.

When the break comes, drink water, eat something proper and sit down. You will feel the difference in the afternoon.

How do you handle a difficult customer?

Stay calm, keep your answers short and polite, and call a supervisor early. You are never expected to argue or put yourself at risk.

Most difficult moments are small: a wrong shelf price, a voucher that will not scan, or someone angry about the queue. You can usually fix these with a price check, a quick apology and a supervisor's help. Read the situation, speak slowly and do not take it personally.

Some moments are more serious. Abuse and threats towards shop staff are a real problem, and the law is catching up. The Crime and Policing Act 2026 creates a new offence of assaulting a retail worker, with up to six months in prison, an unlimited fine, or both. GOV.UK's factsheet does not give a start date, so check it for updates.

If a customer frightens you, step back, call for help and report it to your manager. Your employer should have a clear process for this. Ask about it in your first week, before you need it.

What happens at the end of a shift?

At the end of the shift, you close your till, count up if you handle cash, and hand over to the next colleague. Then you tidy your area and sign off.

Cashing up and till shortages

If your till uses a cash drawer, you count what is in it and compare it with what the till says it took. Small differences happen. What matters is that you are honest and follow the steps you were shown.

You should know your rights here. ACAS says that in retail, an employer can only take money from your pay for a till shortage or missing stock if your contract allows it. They must tell you in writing that you owe it.

They can take no more than 10% of your gross pay on each pay day. They must reclaim it within 12 months of finding the shortage. The 10% limit does not apply to your final pay when you leave.

Winding down

Alex signs off the till at 4pm, collects a coat from the locker and heads home. After a Saturday shift, you lose count of the customers you served. What stays with you is usually one or two good chats, and one customer who made the day harder.

How much does a checkout assistant earn?

You must be paid at least the legal minimum for your age. Many supermarkets pay more than that for store staff.

Some supermarkets publish their own rates. When we checked in September 2026:

• Aldi said its store assistants earn £13.50 an hour from 1 April 2026, or £14.88 inside the M25. Longer-serving staff earn £14.47, or £15.20 inside the M25.
• Lidl said its entry-level hourly pay is £13.45 from 1 March 2026, or £14.80 in London. With length of service, that rises to £14.45, or £15.30 in London.
• Sainsbury's store adverts on its careers site showed £13.23 an hour for customer assistant and customer advisor roles.

The National Careers Service gives a full-time range of £19,000 for a starter to £27,000 for someone experienced. Your real pay depends on your hours, your age and where you live. Always check the advert. You can read more about applying to one of these supermarkets in our guide on how to get a job at Aldi.

Working on Sundays

If you work in a shop, GOV.UK says you can opt out of Sunday working, unless Sundays are the only days you were hired to work. You need to give three months' notice. If your employer did not tell you about this right in writing within two months of you starting, you only need to give one month.

Frequently asked questions

Do I need experience to work on a checkout?

Usually not. Supermarkets train new starters on the tills. Being friendly, reliable and good with simple sums helps more than past experience.

Can I work on the tills at 16?

Some retailers hire at 16, but it depends on the employer, so check the advert. In England and Wales, you can only sell alcohol if each sale is approved and you are supervised. The legal minimum pay for under-18s is £8.00 an hour.

Do checkout assistants sit down all day?

Not always. Some tills have a seat, but many shifts mix till work with self-checkouts, shelves and the customer service desk. Expect to spend a good part of the day on your feet.

What happens if my till is short?

Tell your supervisor and follow the shop's steps. Under ACAS guidance, an employer can only take money from your pay if your contract allows it, and in retail no more than 10% of your gross pay on each pay day.

Is a checkout job a good step to other roles?

It can be. The National Careers Service lists supervisor, department manager and store manager as routes from sales assistant work. Customer service experience also helps in many jobs outside retail.

Find checkout jobs near you

We collect retail jobs from retailers' careers sites and job boards, so you can search them in one place. Start with our checkout jobs search or our customer assistant search. If you want seasonal work first, our Christmas retail jobs guide shows who is hiring. Our membership adds job alerts and a tracker for your applications, and you can find more advice in our guides.

This is general information, not legal or careers advice. Check the retailer's advert and the official source before you act.

Sources and further reading

• Sales assistant job profile — National Careers Service, checked 28 September 2026
• National Minimum Wage and National Living Wage rates — GOV.UK, checked 28 September 2026
• Rest breaks at work — GOV.UK, checked 28 September 2026
• Rest breaks at work: young workers — GOV.UK, checked 28 September 2026
• Challenge 25 — Retail of Alcohol Standards Group, checked 28 September 2026
• Alcohol: age restrictions — Business Companion (Trading Standards), checked 28 September 2026
• Crime and Policing Act 2026: retail crime factsheet — GOV.UK, checked 28 September 2026
• Deductions from pay and wages — ACAS, checked 28 September 2026
• Trading hours for retailers: the law — GOV.UK, checked 28 September 2026
• Sunday working — GOV.UK, checked 28 September 2026
• Aldi sets new pay benchmark as UK's highest-paying supermarket — Aldi UK, checked 28 September 2026
• Lidl GB invests a further £29m in colleague pay — Lidl GB, checked 28 September 2026
• Sainsbury's store teams — Sainsbury's, checked 28 September 2026
• Sainsbury's role insights — Sainsbury's, checked 28 September 2026