Thats vs That’s – Which Is Correct? (2026 Guide)

Ever typed “thats” fast and wondered if you missed something? You’re not alone. This tiny apostrophe trips up even careful writers.

The good news is the rule is simple once you see it clearly. This guide walks you through it with real examples, quick tests, and a table you can bookmark.

The Short Answer: “Thats” vs. “That’s”

“That’s” is correct. “Thats” is not a real word in standard English.

“That’s” is a contraction. It stands for “that is” or “that has.” The apostrophe marks the spot where letters were dropped.

“Thats” usually shows up because someone typed fast and skipped the apostrophe key. It’s not a grammar choice — it’s a slip.

Form	Status	Meaning
That’s	Correct	that is / that has
Thats	Incorrect	No meaning in standard English

What Does “That’s” Mean? (“That Is” vs. “That Has”)

“That’s” carries two different meanings, and context tells you which one is active.

Meaning 1 — “That is”: Used to point something out or describe it. Example: “That’s my desk.”

Meaning 2 — “That has”: Used before a past participle, often in present perfect tense. Example: “That’s changed a lot.”

Sentence	Expands To	Meaning Type
That’s a great idea.	That is a great idea.	that is
That’s been fixed already.	That has been fixed already.	that has
That’s mine.	That is mine.	that is
That’s caused some issues.	That has caused some issues.	that has

“That’s” Full Form and Contraction Grammar Explained

A contraction joins two words into one shorter word. English does this by dropping letters and adding an apostrophe in their place.

For “that’s,” the full forms are “that is” and “that has.” The apostrophe sits where the missing letters used to be.

Think of it this way: “that is” loses the “i,” and “that has” loses “ha.” What’s left gets glued to “that” with an apostrophe.

This is the same pattern you see in “don’t” (do not), “it’s” (it is), and “who’s” (who is). English contractions almost always follow this rule.

Why Do People Write “Thats” Without an Apostrophe?

Most “thats” typos come from speed, not confusion about grammar. Phone keyboards make the apostrophe an extra tap, so it gets skipped.

Autocorrect sometimes misses it too, especially mid-sentence when you’re typing fast. Texting habits also carry over into emails and posts without anyone noticing.

Here are the usual causes:

• Typing quickly without proofreading
• Phone keyboards that hide the apostrophe key
• Autocorrect not catching the missing mark
• Habits picked up from casual texting
• Simply not knowing contractions need an apostrophe

None of these make “thats” correct. They just explain why it keeps showing up.

Is “That’s” Ever Possessive? (No — Here’s Why)

No, “that’s” is never possessive. Apostrophe-S usually signals ownership, like “Sam’s car” or “the dog’s bowl.” But “that” doesn’t work that way.

“That” is a pronoun, not a noun that can own something. So “that’s” can only be a contraction, never a possessive form.

If you’re trying to show something belongs to “that” item, you’d rephrase the sentence entirely — you wouldn’t add an apostrophe to “that” itself. This is a common mix-up worth remembering, similar to how people sometimes misapply word forms in other tricky pairs; a good example is the confusion around emasculate vs demasculate, where the wrong form gets used simply out of habit rather than actual grammar rules.

“That’s” in Formal vs. Informal Writing

Contractions like “that’s” are generally welcome in most writing today, but tone still matters depending on the setting.

Writing Type	Use “That’s”?	Notes
Emails (everyday)	Yes	Sounds natural and clear
Blog posts	Yes	Keeps tone conversational
Academic papers	Often avoided	Formal style prefers “that is”
Legal documents	Avoided	Precision over conversational tone
Business reports	Depends on style guide	Check company preference

If you’re writing something very formal, swap “that’s” for “that is” or “that has.” It’s a small edit that raises the formality level instantly.

“That’s” Meaning in Texting and Casual Writing

In texts, chats, and social posts, “that’s” keeps sentences short and natural. It mirrors how people actually talk.

“That’s so true,” “that’s hilarious,” and “that’s wild” all sound like real conversation. That’s exactly why contractions dominate casual writing.

The catch is that casual habits sometimes drop the apostrophe entirely, turning “that’s” into “thats.” Fast typing on small keyboards is usually the reason.

Even in texting, “thats” is still a typo, not an accepted informal spelling. Autocorrect just doesn’t always catch it in time.

The Replacement Trick: How to Test “That’s” in Any Sentence

Here’s the fastest way to check your writing: swap “that’s” with “that is,” then with “that has.” If either one still makes sense, the apostrophe belongs there.

Try it on this sentence: “Thats not what I meant.” Expand it: “That is not what I meant.” It works, so the sentence needs “that’s.”

Now try: “Thats book is on the table.” Expand it: “That is book is on the table.” That doesn’t make sense, so this sentence actually needs a different word entirely — probably “that” alone, describing “book” as an adjective (“That book is on the table”).

This one test settles almost every case in seconds. No memorizing needed.

“Thats All” or “That’s All”? Quick Answer

“That’s all” is correct. It means “that is all,” as in finishing a thought or a list.

“Thats all” without the apostrophe is a typo, same as every other case of “thats.” The rule doesn’t change based on which word follows it.

So whether you’re wrapping up a sentence, a speech, or an email, stick with “that’s all.”

Are There Any Exceptions? Brand Names and Rare Cases

Grammar rules bend for proper nouns, and “thats” has one known exception: branding.

A small Japanese car model released by Honda was styled as “That’s,” and some references list it without the apostrophe in casual mentions. Brand names don’t follow standard grammar because companies can spell things however they choose.

Outside of names, trademarks, or stylized titles, “thats” has no valid use. Regular sentences always need the apostrophe when the contraction is intended.

So if you ever see “Thats” capitalized as part of a logo or product name, that’s a branding choice — not a grammar rule you should copy.

Examples of “That’s” Used Correctly in a Sentence

Seeing real examples locks the rule in faster than any explanation.

• That’s the restaurant we talked about.
• That’s been on my mind all week.
• I think that’s a fair point.
• That’s not what the report says.
• That’s the last file you need.
• She said that’s been approved already.
• That’s exactly why the plan changed.

Notice how naturally each one expands to “that is” or “that has.” That pattern never breaks in standard English.

How to Remember the Difference Between “Thats” and “That’s”

A few small habits make this mistake disappear for good.

1. Say it out loud. “Thats” doesn’t sound like a real word when spoken slowly.
2. Run the replacement test. Swap in “that is” or “that has” every time you’re unsure.
3. Picture the missing letters. The apostrophe marks exactly where they used to sit.
4. Proofread before sending. A two-second scan catches most apostrophe slips.
5. Turn on spell-check. Most tools flag “thats” automatically.

Once this becomes a habit, you’ll stop noticing you’re even checking it.

Frequently Asked Questions

Is “thats” ever correct?

Only inside a stylized brand name, like a specific Honda car model. In regular sentences, it’s always a typo.

Does “that’s” mean “that is” or “that has”?

It can mean either one, depending on the sentence. Context and the word that follows tell you which meaning applies.

Is “that’s” okay in formal writing?

It’s fine in most professional writing, but very formal documents like legal or academic papers often prefer “that is” or “that has” written out fully.

Is “that’s” possessive?

No. “That’s” is only a contraction. “That” cannot take a possessive apostrophe because it isn’t a noun.

What’s a quick way to check if I need the apostrophe?

Replace “that’s” with “that is” or “that has.” If the sentence still makes sense, keep the apostrophe.

Why do people confuse “thats” with “that’s”?

Mostly speed typing, small phone keyboards, and autocorrect missing the mark. It’s rarely a real misunderstanding of the rule.

Does using “thats” instead of “that’s” hurt my writing?

Yes, especially in professional or published content. It reads as a typo and can lower trust in your writing’s quality.

Conclusion

The rule behind “thats” vs “that’s” really comes down to one small mark. That apostrophe shows where letters from “that is” or “that has” were dropped, and skipping it turns a real word into a typo.

Use the replacement trick whenever you’re unsure, and the right choice becomes obvious in seconds. With a little practice, this mistake stops happening altogether.

Good grammar builds trust with readers, and small details like this one add up over time. For further reading on contractions and apostrophe rules, the Merriam-Webster guide to contractions is a solid, authoritative reference.