Quick answer: “Its” (no apostrophe) shows possession — something belongs to it. “It’s” (with apostrophe) is a contraction of “it is” or “it has.” “The dog wagged its tail” (the tail belongs to it) vs. “It’s raining” (it is raining).
This is one of the single most common punctuation mistakes in English, largely because apostrophes usually DO show possession (“Sarah’s car”) — but “its” breaks that pattern on purpose, which trips up even careful writers.
| Term | Meaning / When to use | Example sentence |
|---|---|---|
| Its | Possessive — belongs to it. No apostrophe. | “The company changed its logo.” |
| It’s | Contraction of “it is” or “it has.” | “It’s been a long day.” |
The Expand-It Test
Replace the word with “it is” or “it has.” If the sentence still makes sense, use “it’s.” “It’s (it is) cold outside” works, so “it’s” is correct. “The dog wagged it is tail” doesn’t work, so it should be “its.”
When to use Its
- “The cat licked its paw.”
- “Every rule has its exception.”
- “The team celebrated its victory.”
When to use It’s
- “It’s time to go.”
- “It’s been great catching up.”
- “I think it’s going to rain.”
Common Mistakes and Exceptions
The confusion exists because almost every other possessive in English uses an apostrophe (Sarah’s, the dog’s, the company’s) — “its” is one of the few possessive pronouns, along with “his,” “hers,” “ours,” and “theirs,” that never takes an apostrophe. None of those five ever use an apostrophe for possession, which is a useful pattern to remember: possessive pronouns skip the apostrophe; contractions require one.
Frequently Asked Questions
Is “it’s” ever correct as a possessive?
A: No, never — “it’s” is always a contraction. If you mean possession, “its” (no apostrophe) is always correct.
Why does spell-check sometimes miss this error?
A: Because both words are spelled correctly on their own — spell-check catches misspellings, not grammatically wrong-but-real words.
What’s the fastest way to never mix these up again?
A: Remember that “its” belongs to the same no-apostrophe family as “his” and “hers” — nobody writes “she loves her’s dog,” so “its” should feel the same way.
