Its vs It's: When to Use the Apostrophe

It's is a contraction of "it is" or "it has." Its (no apostrophe) is the possessive form of "it," meaning "belonging to it," just like his or her.

That's the whole rule, and it holds without exception in American, British and Australian English. The trouble is that our instincts tell us apostrophes mean possession, so its looks like it should have one. This page explains why it doesn't, gives you a test that takes one second, and walks through the situations where even careful writers slip.

Quick answer: Write it's only when you could say "it is" or "it has" instead. In every other case, write its. ✅ It's raining. (It is raining.) ✅ The cat licked its paw. (The paw belongs to the cat.)

On this page

1. The One-Second Test
2. What Each Word Actually Is
3. Why the Apostrophe Feels Right (and Isn't)
4. Pronunciation
5. Examples in Context
6. US vs UK vs Australia
7. Common mistakes
8. Related Pairs That Work the Same Way
9. Tricky Cases Even Editors Pause Over
10. A Memory Trick That Sticks
11. Practice quiz
12. Your Takeaway

The One-Second Test

Read your sentence aloud and replace the word with "it is." If that still makes sense, try "it has" as well. If either one works, you need the apostrophe. If neither works, drop it.

• The council said (its / it's) reviewing the plan. → "The council said it is reviewing the plan." Works, so: it's.
• The council published (its / it's) report. → "The council published it is report." Nonsense, so: its.
• (Its / It's) been a long week. → "It has been a long week." Works, so: it's.

That's it. You never need to think about possession at all. Just test for "it is" and "it has."

What Each Word Actually Is

It's: a contraction

A contraction squeezes two words into one, with the apostrophe marking the spot where letters went missing. In it's, the apostrophe replaces the i of "is" or the ha of "has."

• it is → it's: It's cold in Melbourne this morning.
• it has → it's: It's taken me three weeks to finish this book.

The "it has" version usually appears right before a past participle: it's been, it's gone, it's got, it's become, it's shown. If the next word is a noun or an adjective, you're almost always looking at "it is."

Its: a possessive pronoun

Its belongs to a family of words called possessive determiners (sometimes taught as possessive adjectives or possessive pronouns). They tell you who or what owns something:

Look down the middle column. Not one of those words has an apostrophe. Its simply follows the pattern. You'd never write hi's or ou'r, and it's for possession is the same kind of error.

The standalone forms (mine, yours, hers, ours, theirs) also skip the apostrophe. That's why you write "the choice is yours," not "your's." If you also mix up your and you're, the same logic applies; see our guide to your vs you're.

Why the Apostrophe Feels Right (and Isn't)

Here's the source of the confusion. With ordinary nouns, English does mark possession with apostrophe + s:

• the dog's bowl
• Sarah's laptop
• the company's profits

So when you want to say "the bowl belonging to it," your brain reaches for the same pattern and produces it's bowl. The logic is understandable. But pronouns play by different rules from nouns, and it is a pronoun.

There is one pronoun that does take an apostrophe: one's, as in "one should mind one's manners." It's an outlier, and it's one more reason people get muddled. Treat it as the exception that proves nothing about its.

A little history

The word its is surprisingly young. In Old and Middle English, the possessive of it was his, the same as for men. That's why the King James Bible (1611) has lines like "if the salt have lost his savour." The salt isn't a person; his was simply the neuter possessive at the time.

Its began appearing in the late 1500s and spread during the 1600s. For a long stretch it was often printed with an apostrophe, it's, because writers treated it like a noun possessive. Over the following centuries, as the contraction it's (for "it is") became common, the two uses collided, and printers and grammarians settled on the apostrophe-free its for possession. By the 1800s the modern split was firmly established.

So if you've ever wanted to write it's for possession, you're in good historical company. You'd just be about two hundred years out of date.

Pronunciation

Both words are pronounced exactly the same: ITS, rhyming with bits and fits. There's no difference in American, British or Australian accents. Because speech gives you no clue, this is purely a spelling problem, which is why it shows up so often in typed messages and so rarely in conversation.

Examples in Context

Everyday life

1. It's going to rain in Brisbane this afternoon, so take an umbrella.
2. The puppy keeps chasing its own tail.
3. I love this jacket, but its zip keeps sticking.
4. It's been ages since we caught up. Coffee on Saturday?
5. That old oak in the park has lost most of its leaves.
6. It's not my turn to do the dishes.

Work and email

7. Hi Priya, just a reminder that it's your turn to chair Monday's meeting.
8. The software update fixed most bugs, but its new interface confused the sales team.
9. It's taken longer than expected to get sign-off from legal.
10. Our Leeds office has moved its reception to the ground floor.
11. The board says it's confident about next year's targets.
12. Each department should submit its budget by Friday.

Academic and technical

13. The study's main limitation is its small sample size.
14. It's widely accepted that the two variables are correlated.
15. The enzyme loses its function above 45°C.
16. Each cell divides, and its daughter cells inherit the mutation.
17. The function returns its result as an integer.

News-style

18. The Ohio city council voted to cut its spending by 4 percent.
19. It's the third storm to hit the Queensland coast this month.
20. The museum reopened its doors after a two-year renovation.
21. Officials say it's too early to estimate the cost of the damage.
22. The club confirmed its captain would miss the final through injury.

Both in one sentence

23. It's a lovely car, but its fuel economy is terrible.
24. The team knows it's lost its edge since the coach left.
25. It's clear the charity has outgrown its premises.

Sentences 23 to 25 are good practice: run the "it is / it has" test on each word separately.

US vs UK vs Australia

There is no difference. Its and it's are spelled and used identically in American, British and Australian English, and every major dictionary in all three countries treats the possessive it's as an error.

Two small regional patterns are worth knowing, though neither changes the rule:

• Collective nouns. British and Australian writers often treat organizations and teams as plural: "The government have changed their minds," "Arsenal are on their way." American English usually keeps them singular: "The government has changed its mind." So American text tends to use its more often in these sentences. Both styles are correct within their own region, but avoid mixing them in the same sentence ("The company has changed their policy" reads as inconsistent to many editors).
• Contractions in formal writing. University style guides in all three countries commonly discourage contractions in essays and theses. That means it's appears less often in academic writing, while its is unaffected.

Common mistakes

Possessive with an apostrophe

❌ The bank has updated it's app. ✅ The bank has updated its app.

Contraction without the apostrophe

❌ Its a shame you can't make it. ✅ It's a shame you can't make it.

The invented form its'

❌ The dog wagged its' tail. ✅ The dog wagged its tail.

Its' doesn't exist. Plural possessives like the dogs' bowls take an apostrophe after the s, but its is not a plural noun.

"It's" at the end of a sentence

This one catches people who've learned the rule well. Contractions of "is" can't stand at the end of a clause in English when they carry stress.

❌ I don't know what it's. ✅ I don't know what it is.

The same goes for "Yes, it's" as a short answer; you need "Yes, it is."

Mixing up its own

❌ Each region has it's own dialect. ✅ Each region has its own dialect.

"Its own" is always possessive. If you see own right after the word, you can be almost certain it's its.

Autocorrect "help"

Phone keyboards and some grammar tools occasionally change its to it's, or the reverse, especially after you've typed one form several times. Always reread short messages before sending, because this is the error readers notice most.

Related Pairs That Work the Same Way

Once you understand its and it's, you've cracked several other pairs. In each case, the version with an apostrophe is a contraction, and the version without is possessive:

The same "expand it" test works for all four. For more practice, see who's vs whose and their, there or they're.

Tricky Cases Even Editors Pause Over

Headlines and titles

In headlines, people sometimes worry that capitalizing changes the rule. It doesn't. It's and its keep their apostrophe choices in title case: "Why It's Time to Rethink Remote Work" and "The City and Its Secrets" are both correct.

Its before a gerund

When it "owns" an -ing word, use its: The plan's success depends on its being approved quickly. This is formal style. Many writers would simply say on it being approved, which is also accepted in everyday English. Either way, there's no place for it's here, because "it is being approved" doesn't fit.

Old forms: 'tis and it's

You may meet 'tis in poems and carols ("'Tis the season"). That's an old contraction of "it is" with the apostrophe at the front, because the i is missing. It shows the same principle: the apostrophe always marks missing letters.

Quoting the word itself

When you write about the words themselves, as this page does, italics help: the word its has no apostrophe. Don't add apostrophes to make plurals of words either: "too many it's in the draft" is fine in italics, but avoid "it's's."

A Memory Trick That Sticks

Think of the apostrophe as a missing-letter sign, nothing more. In it's, something is missing: the i from "is" or the ha from "has." In possessive its, nothing is missing, so there's no sign.

A shorter version: "His, hers, its: no apostrophe for possession." If you wouldn't put an apostrophe in his, don't put one in possessive its.

Some people also like this one: It's is short for "it is," and the apostrophe is standing in for a letter that left.

Practice quiz

Choose its or it's for each blank.

1. ____ hard to believe the summer is nearly over.
2. The charity relies on ____ volunteers to run the shop in Bristol.
3. ____ taken the council six months to fix that pothole.
4. The phone is fine, but ____ battery drains quickly.
5. I'm not sure what ____ called, but it tastes amazing.
6. Sydney is famous for _ harbor, and _ easy to see why.

Answers

1. It's. "It is hard to believe" works.
2. its. The volunteers belong to the charity; "it is volunteers" makes no sense.
3. It's. "It has taken" works.
4. its. The battery belongs to the phone.
5. it's. "What it is called" works. (Note it's not at the end of the clause, so the contraction is fine here.)
6. its, it's. The harbor belongs to Sydney; then "it is easy to see why."

Your Takeaway

Forget the idea that apostrophes always mean possession; with pronouns, they never do. Before you send a message or submit a document, search for every it's and silently read it as "it is" or "it has." If the sentence falls apart, delete the apostrophe. That ten-second check will catch nearly every error, and it works just as well for then vs than style slips that tend to travel in the same drafts.