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
on behalf
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on behalf" is correct and usable in written English. You can use it when you are representing someone else or acting as their spokesperson. Example: "I am writing to you on behalf of my colleague." Alternative expressions include "in place of" and "for the sake of."
✓ Grammatically correct
Academia
Formal & Business
News & Media
Science
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
60 human-written examples
On behalf of his daughter, he sued.
News & Media
"on behalf of the Bolivian people".
News & Media
He acquires properties on behalf of investors.
News & Media
Rochdale typically trades on behalf of clients.
News & Media
We deëmphasized becoming on behalf of being.
News & Media
On behalf of Robyn.
Academia
Published by ElsevieiLtd on behalf of COSPAR.
Science
Ephraim Poloner, On behalf of the Ann Harris Family.
News & Media
Forwarded on behalf of Halvor.
Academia
On behalf of the Board.
News & Media
On behalf of 16 signatories.
Science & Research
Expert writing Tips
Best practice
In formal correspondence, place the phrase at the beginning of a sentence to establish authority immediately, followed by a comma if it introduces a long introductory clause.
Common error
While often used interchangeably in modern English, traditional grammar distinguishes between "on behalf" (acting as a representative) and "in behalf of" (acting for the benefit or interest of someone). If you are signing a contract for your boss, use "on behalf"; if you are raising money for a charity's mission, "in behalf of" is technically more precise.
Source & Trust
91%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on behalf" functions as a complex prepositional phrase that introduces an agent acting for a principal. According to Ludwig AI, it typically serves an adverbial function, modifying the main verb of the sentence to indicate the capacity in which the subject is acting.
Frequent in
Science & Academic Research
42%
Formal & Business Communication
30%
News & Media
23%
Less common in
Wiki & General Knowledge
3%
Social Media
1%
Informal Conversation
1%
Ludwig's WRAP-UP
In conclusion, "on behalf" is a robust and essential phrase in the English language for denoting agency and representation. Ludwig AI identifies it as highly frequent in Formal and Scientific contexts, where clear attribution of actions is necessary. Whether you are signing a document for a colleague or speaking for an entire organization, this phrase provides the necessary linguistic bridge between the actor and the entity being represented. While there is a historical distinction between it and "in behalf of", modern usage has largely converged on "on behalf" as the preferred standard for almost all professional scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
representing
Uses a direct participle to indicate the same relationship without the prepositional structure.
in place of
Emphasizes the substitution of one person for another in a specific role.
as a representative of
A more explicit noun-based construction often used in formal job titles.
acting for
Focuses on the action being performed rather than the state of representation.
speaking for
Specifies that the representation is primarily verbal or communicative.
as a proxy for
Implies a legal or formal authorization to act or vote for someone else.
in the name of
Suggests acting under the authority or reputation of another entity.
for the sake of
Focuses more on the benefit or purpose of the action rather than direct agency.
pro
A Latin prefix used in legal or technical contexts to mean 'on behalf of' or 'for'.
in lieu of
Means 'instead of' and is used when one thing replaces another, rather than representing it.
FAQs
How do I use "on behalf" in a formal email?
You can use it to clarify who you are representing by saying, "I am writing to you "on behalf" of the CEO." This establishes your role as an authorized communicator.
What is the difference between "on behalf of" and "in behalf of"?
Historically, "on behalf" means acting as a representative, while "in behalf of" means acting for someone's benefit. However, Ludwig AI shows that "on behalf" is now standard for both contexts in most modern writing.
What can I say instead of "on behalf of"?
Depending on the context, you can use "representing", "in place of", or "as a representative of".
Is it "on behalf of me" or "on my behalf"?
Both are grammatically correct, but "on my behalf" is generally considered more natural and concise in professional writing.
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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
91%
Authority and reliability
4.9/5
Expert rating
Real-world application tested