Prepositions after verbs

Reinvest in or reinvest into?

Reinvest in is the standard and most natural pattern. Reinvest into appears occasionally but is less common and often unnecessary.

Quick answer

Which form should you use?

Use reinvest in for money, profits, time, or resources directed back into a business, project, or asset. Reinvest into is sometimes used to emphasise movement, but in is usually preferred.

The company will reinvest in new equipment.
She chose to reinvest in the business.
Profits were reinvested in research.

Choose the pattern by meaning

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

1
reinvest in + business/project

Putting resources back into something

In is the standard preposition after reinvest.

They reinvested in local infrastructure.
He plans to reinvest in renewable energy.
2
reinvest into + destination

Emphasising movement into something

Into can appear when focusing strongly on movement or transfer, but many writers still prefer in.

The funds were reinvested into community programmes.
3
reinvest profits in + area

Specifying what is reinvested

This pattern clearly identifies the money or resources being reused.

The firm reinvested profits in staff training.

See the difference in context

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

Construction
Example
Meaning
reinvest in
They reinvested in the company.
Standard and widely accepted pattern.
reinvest into
The earnings were reinvested into new technology.
Possible but less standard than reinvest in.
invest in
She invested in real estate.
General investment, not necessarily repeated or returned investment.
put back into
The profits were put back into the business.
A more informal alternative.

Common mistakes

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

Overusing into

Into is possible, but in is usually simpler and more natural.

✕ The company reinvested into marketing. ✓ The company reinvested in marketing.

Missing the preposition

Reinvest normally takes in before the destination.

✕ They reinvested the business. ✓ They reinvested in the business.

Confusing invest and reinvest

Reinvest means investing again or returning profits.

✕ They reinvested their first savings account. ✓ They invested in their first savings account.

Quick practice

Choose the expression that matches the intended meaning.

1. The firm plans to reinvest ___ research.
2. Profits were reinvested ___ community projects.
3. She reinvested profits ___ employee training.

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Frequently asked questions

Is reinvest into wrong?

Not necessarily, but reinvest in is more standard and usually preferred.

Can I say reinvest back into?

Yes, but back is often unnecessary because reinvest already implies returning something.

What does reinvest mean?

It means to invest money or resources again, often by putting profits back into a business or project.

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