Used and loved by millions
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 end of contract
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "upon end of contract" is not correct in standard written English. It should be used in contexts discussing the conclusion or termination of a contract. An example could be: "Upon end of contract, all obligations will cease." Alternative expressions include "at the end of the contract" and "upon contract termination."
⚠ May contain grammatical issues
News & Media
Science
Wiki
Alternative expressions(19)
upon expiration of the contract
upon completion of the contract
at the end of the contract term
here
is equivalent to
in the wishes of
rapidly thereafter
for the immediate future
Very soon
somewhere later
one week before
at the early time
in the next weeks
during the previous years
it is important to remember
not yet completed
to avoid disruption
in accordance with direction from
a couple of books before
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
A staff crisis resulted, which eventually ended with the payment of end-of-contract settlements (IC4, IC13).
Science
The end-of-contract payments, for instance, could have been made more rapidly by the FOMULAC.
Science
There is little switching at the end of contracts.
News & Media
Generally, these GR provisions stipulate that the insurer has to renew the contract at the end of the contract period at the same conditions that apply for other subscribers with the same contract.
If the person you are in the contract with knowingly fails to keep the terms of the contract, you may terminate your end of the contract.
Wiki
In years where you earn less than a certain agreed-upon amount, you pay nothing, and the year is added to the end of the contract.
News & Media
If one party fails to fulfill his end of a contract, that lack of performance may allow the second party to terminate his end of a contract.
Wiki
A major critique of OWWA is that membership expires at the same time as the end of employment contract, and therefore migrant workers cannot anymore receive benefits upon return to the Philippines (75).
Science
Most are laid off at the end of their contract.
News & Media
Burnett will be 36 at the end of his contract.
News & Media
"They haven't kept up their end of the contract.
News & Media
Expert writing Tips
Best practice
Consider using the more idiomatic "at the end of the contract" if you are referring to a simple point in time.
Common error
Avoid the common mistake of using "upon end of contract" in running text just because you have seen it in bullet points or database fields. In standard English writing, nouns like "end" and "contract" almost always require determiners to be grammatically sound.
Source & Trust
90%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
This phrase functions as a temporal adverbial phrase that sets a condition based on time. However, as noted by Ludwig, it is an elliptical construction that lacks the grammatical markers (articles) necessary for standard syntax. In formal grammar, it is categorized as a prepositional phrase missing its determiners.
Frequent in
News & Media
50%
Science
30%
Wiki
20%
Less common in
Formal & Business
0%
Academia
0%
Social Media
0%
Ludwig's WRAP-UP
While the intended meaning of "upon end of contract" is perfectly clear to any English speaker, it fails to meet the standards of formal written English. Ludwig AI indicates that the phrase is missing necessary definite articles. To maintain a professional and authoritative tone, writers should opt for grammatically complete alternatives such as "at the end of the contract" or "upon expiration of the contract". The clipped version is best reserved for technical shorthand where brevity is more important than grammatical precision.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
at the end of the contract
Uses the standard prepositional structure with required articles
upon the end of the contract
Adds the necessary articles to the original phrase for grammatical correctness
upon expiration of the contract
Uses more formal legal terminology to describe the contract naturally finishing
at the conclusion of the contract
Provides a slightly more formal synonymous noun
upon contract termination
Transforms the structure into a compound noun for a professional tone
when the contract ends
Uses a temporal clause instead of a prepositional phrase
on termination of the contract
Swaps the preposition to a standard alternative used in legal contexts
following the end of the contract
Clarifies the sequence of events as occurring after the end date
upon completion of the contract
Implies the fulfillment of duties rather than just a date expiry
once the contract expires
Uses a conditional conjunction for a more dynamic sentence flow
FAQs
Is "upon end of contract" grammatically correct?
Not in standard written English. It is a clipped phrase that lacks articles. You should use ""at the end of the contract"" or "upon the end of the contract" instead.
What can I say instead of "upon end of contract"?
Depending on the context, you can use "upon expiration of the contract", "at the conclusion of the contract", or "upon contract termination".
When is it okay to use clipped phrases like "upon end of contract"?
This style is only acceptable in shorthand environments like automated email subject lines, spreadsheet headers, or technical documentation where space is limited. In any formal document, use "upon the end of the contract".
What's the difference between "upon end of contract" and "at the end of the contract"?
The main difference is grammatical completeness. ""at the end of the contract"" is the standard idiomatic expression, whereas "upon end of contract" is a telegraphic version that may be perceived as unprofessional in prose.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
90%
Authority and reliability
2.5/5
Expert rating
Real-world application tested