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Prepositions with nouns

"Of benefit" or "on benefit"?

Of benefit is a standard English expression meaning useful or helpful. On benefit is used only in special contexts such as receiving welfare benefits.

Quick answer

Which phrase is correct?

Use of benefit to mean helpful or useful. Do not use on benefit with this meaning. However, on benefits can refer to receiving government support.

The guide was of benefit to new staff.
Extra training may be of benefit.
He has been on benefits since January.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
of benefit to + person/group

Showing usefulness

Use of benefit to say something is helpful to someone.

The changes will be of benefit to local residents.
2
of benefit

Describing something as useful

This phrase can stand alone when the receiver is obvious.

The advice proved of benefit.
3
benefit from + thing

Receiving an advantage

Benefit from is a common verb pattern.

Students benefit from regular feedback.
4
on benefits

Receiving welfare support

On benefits refers to receiving government financial assistance.

Many families were on benefits during the crisis.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
of benefit
The software is of benefit to small businesses.
Standard expression meaning useful or helpful.
on benefit
The workshop was on benefit for staff.
Not idiomatic for the meaning of usefulness.
on benefits
She was on benefits for six months.
Used for receiving welfare payments.
benefit from
We all benefit from clean water.
Verb pattern meaning receive an advantage.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using on benefit for usefulness

Use of benefit when meaning helpful.

✕ The report is on benefit to managers. ✓ The report is of benefit to managers.

Forgetting the plural in welfare contexts

The usual phrase is on benefits.

✕ He is on benefit. ✓ He is on benefits.

Using benefit as an adjective

Benefit is usually a noun or verb.

✕ This tool is very benefit. ✓ This tool is very beneficial.

Quick practice

Choose the expression that matches the intended meaning.

1. The new policy will be ___ employees.
2. Some households are currently ___ due to unemployment.
3. Children often ___ reading every day.

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Frequently asked questions

Is "of benefit" formal?

Yes. It is common in formal and professional English.

Can "on benefit" mean useful?

No. English uses of benefit for that meaning.

What is the difference between "beneficial" and "of benefit"?

Both mean helpful. Beneficial is an adjective, while of benefit is a noun phrase.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

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