Quick answer: Permit is more formal than allow and typically implies official, legal, or institutional authorisation: Photography is not permitted in the gallery. Allow is broader and more everyday — it means to let something happen or enable it, in both formal and informal contexts: She allowed her children to stay up late. Remember: PERMIT = formal or official authorisation; ALLOW = everyday permission or enabling. For a fuller definition, see the Cambridge Dictionary entry for ‘permit’.
Comparison Table
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| permit | verb / noun | to give formal or official permission; to make possible; a document authorising something | Smoking is not permitted on these premises. |
| allow | verb | to let someone do something; to enable; to give permission in a general sense | The rules allow players to appeal decisions. |
Using Permit
Permit as a verb is more formal than allow. It is common in legal texts, official notices, signs, regulations, and formal writing. When you see “no smoking permitted” or “entry not permitted,” the authority behind the rule is implied.
The regulations do not permit the use of mobile phones during the exam.
Visitors are permitted to enter between 9am and 5pm.
The plan will only go ahead if the budget permits.
Circumstances permitting, the match will take place on Saturday.
As a noun (stressed on the first syllable: PER-mit), permit refers to an official document granting authorisation: a work permit, a parking permit, a building permit.
Using Allow
Allow is more versatile and covers informal, formal, and abstract contexts. It can mean to give permission, to enable a situation to happen, or to set aside time or resources for something.
The teacher allowed students to use dictionaries in the test.
Please allow three to five working days for delivery.
The design allows for future expansion.
I can’t allow this to continue.
Allow for is a useful fixed phrase meaning to leave space or time for something: Allow for delays when planning your journey.
Key Differences
- Formality: permit is more formal; allow is used in both formal and informal contexts.
- Authority: permit implies an official or institutional authority granting consent.
- Noun form: permit has a noun form (a permit); allow does not (you would say “allowance” or “permission”).
- Fixed phrases: “allow for” is common; “permit for” is not standard.
When Both Are Correct
In many formal contexts, both are acceptable:
Dogs are not permitted in the restaurant. (more formal, sign-like)
Dogs are not allowed in the restaurant. (equally correct, slightly less formal)
Memory Tip
PERMIT → think of a permit card or official document: authority-backed permission.
ALLOW → think of allowance: everyday permission, flexible and broad.
Common Mistakes
✗ My mum permits me to stay up late on weekends. (sounds overly formal)
✓ My mum allows me to stay up late on weekends.
✗ You need an allowing to park here.
✓ You need a permit to park here.
✗ The design permits for future changes.
✓ The design allows for future changes.
Also confusing: Disrupt vs Interrupt, Respond vs Reply, Accept vs Except. Browse all confusing word pairs →
Quick Check: Permit or Allow?
Four questions — choose the correct word for each sentence.
1. “You will need a work ___ to live in the UK.”
2. “Please ___ extra time for traffic.”
3. “Flash photography is not ___ in the museum.”
4. “Mum ___ us to have ice cream after dinner.”
Frequently Asked Questions
What is the difference between permit and allow?
Permit is more formal than allow and often implies official or legal authorisation: “Photography is not permitted in the gallery.” Allow is broader and covers informal, formal, and abstract contexts: “The rules allow players to appeal.” In many formal contexts both are interchangeable, but permit sounds more authoritative and institutional.
Can permit and allow be used interchangeably?
In formal and written contexts, often yes: “Dogs are not permitted/allowed on the premises.” However, permit sounds unnatural in casual speech: you would not normally say “Mum permitted me to go out.” Allow is the natural everyday choice. Permit is the right choice for official notices, legal documents, and formal writing.
What is “a permit” as a noun?
A permit (pronounced PER-mit, with stress on the first syllable) is an official document authorising something: a work permit, a parking permit, a building permit, a firearms permit. Allow has no equivalent noun in this sense. The related nouns are permission (general: “I need permission”) and allowance (a set amount: “a luggage allowance”).
What does “allow for” mean?
Allow for means to take into account or to leave space, time, or resources for something: “Allow for delays when planning your journey.” “The budget allows for unexpected costs.” This phrase does not work with permit: you would not say “permit for delays.” Allow for is a very useful and natural English phrase in planning and design contexts.
What is the noun form of allow?
The main noun form is allowance: “a luggage allowance,” “a weekly allowance.” In the sense of permission, the noun is permission: “You have my permission.” The adjective allowable means permitted or acceptable: “allowable expenses” (also permitted in legal/tax contexts). The noun permittee is rare but exists in legal writing.
What does “circumstances permitting” mean?
“Circumstances permitting” is a fixed phrase meaning “if circumstances allow it” or “if everything works out”: “We will finish by Friday, circumstances permitting.” It is a formal or literary phrase. The equivalent with allow would be “if circumstances allow,” which is also natural but slightly less formal.
Are permitted and allowed the same in passive constructions?
In passive constructions on signs and regulations, both are common and essentially interchangeable: “No alcohol permitted/allowed on these premises.” In formal legal or official contexts, permitted is slightly preferred because it invokes explicit authority. In everyday English, allowed is more natural in speech and informal writing.
Can “allow” mean “enable” or “make possible”?
Yes. Allow can mean to make something possible or give the opportunity for it: “The software allows users to customise settings.” “The new law allows businesses to operate on Sundays.” This meaning is very common in technical, business, and legal writing. Permit can also be used this way: “The budget permits a holiday.”
What are common collocations with permit?
Common collocations: work permit, parking permit, building permit, firearms permit, not permitted, entry not permitted, permit holders only, if time permits, circumstances permitting. Note that permit collocates strongly with official documents and institutional rules.
How do permit and allow appear in IELTS and formal writing?
Both words appear in IELTS writing, especially in topics about regulations, social policies, and rights. Using permit in formal writing signals a more authoritative or institutional context; allow is more neutral. In IELTS Task 2, both are acceptable at C1 level. Common phrases: “The law permits/allows”; “participants were not permitted/allowed to”.