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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
upon check out
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "upon check out" is correct and usable in written English.
This phrase is typically used to indicate that an action or process will take place before or when something else is completed, often in relation to an activity at a store or business. For example, "Upon check out, please make sure to stop by the customer service desk".
✓ Grammatically correct
Formal & Business
News & Media
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
3 human-written examples
Guests at Starwood Hotels are invited to add US$1 (or the equivalent in local currency) to their bill upon check out, as a donation to UNICEF.
Formal & Business
It failed to show up on our room bill, however, so we let the concierge know upon check out.
News & Media
The discount is applied upon check out.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Doormen should be tipped upon checking out if they have helped with taxis or luggage.
News & Media
The following day, after a second Christmas party night at Airth Castle -- this time an event for elderly charity workers rather than binge-drinking pharmaceutical workers -- we accepted a partial refund upon checking out, in compensation for both the room change and the noise, and headed to Glasgow.
News & Media
I have always paid my hotel bills upon checking out.
News & Media
This means, among many more things, that you should be kind to the waiter who serves you, leave a hotel room in decent shape upon checking out and put away your shopping cart at the grocery store.
News & Media
Upon checking out, even if signs of bed bugs were not present, inspect all of your belongings thoroughly.
Wiki
Any lever handles that need to have their handing indicated will have the option upon checking out.
Wiki
Use ALUM as the discount code upon check-out.
Academia
A complimentary, full breakfast is served every morning in the first-floor dining room, where the chef's signature dishes have led many a guest to request recipes upon check-out.
News & Media
Expert writing Tips
Best practice
Use "upon check out" to clearly indicate that an action should happen as someone is leaving a hotel, store, or other service point. It adds a touch of formality to your writing.
Common error
Avoid using "upon check out" interchangeably with "after check out". "Upon" indicates the action happens during the check-out process, while "after" means it happens subsequently.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon check out" functions primarily as an adverbial phrase modifying a verb. It indicates the timing of an action, specifying that it occurs during or at the completion of the check-out process, as supported by Ludwig.
Frequent in
News & Media
33%
Wiki
22%
Formal & Business
11%
Less common in
Science
6%
Academia
6%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "upon check out" is a grammatically sound and relatively common way to indicate that something occurs during the check-out process. According to Ludwig, it is accurate and usable in written English. While "upon check out" has a slightly formal tone, it is suitable for a variety of contexts, especially within the News & Media and Wiki categories. Bear in mind the similar phrases to choose the most appropriate according to the context.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
at the time of check out
Replaces "upon" with "at the time of" for a slightly more descriptive phrase.
when checking out
Uses a gerund phrase instead of a prepositional phrase. It's less formal.
on departure
More concise, but lacks the specific context of checking out from a hotel or service.
prior to departure
More formal alternative, suitable for official instructions or notices.
before leaving
General phrase applicable in many situations, less specific to a transaction.
at the end of your stay
Specific to hotel stays and similar situations.
before your departure
A slightly more elaborate and formal way to express the same idea.
as you leave
Informal and focuses on the physical act of leaving.
just before leaving
Emphasizes the immediacy of the action before departure.
at completion of stay
Very formal, primarily used in legal or official contexts.
FAQs
How to use "upon check out" in a sentence?
Use "upon check out" to describe actions that happen as someone completes a transaction or concludes a stay. For instance, "The discount will be applied "at check out"" or "A survey will be emailed "after check out"".
What can I say instead of "upon check out"?
You can use alternatives like "at the time of check out", "when checking out", or "on departure" depending on the context.
Is it correct to say "upon checking out"?
Yes, "upon checking out" is grammatically correct. It's a gerund phrase that functions similarly to "upon check out", which is a prepositional phrase. For example, "Upon checking out, please ensure all belongings are accounted for".
What's the difference between "upon check out" and "at check out"?
"Upon check out" suggests the action happens during the process of checking out. "At check out" is more general and can mean either during or immediately after the check-out process. The difference is subtle, and they are often used interchangeably.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested