afterall (after all)

The correct form is two words: "after all." Joined ("afterall") or hyphenated ("after-all") forms are nonstandard. Below: short rules, punctuation notes, many ready-to-use examples, and quick fixes you can paste.

Quick answer

Always write "after all" as two separate words. Use commas depending on position and emphasis (examples follow).

"After all" signals a conclusion, reminder, or change of thinking.
Do not write "afterall" or "after-all" in standard English; replace them with "after all."
When in doubt, read the sentence aloud: pauses indicate commas.

Core explanation

"After all" is an idiomatic adverbial/discourse marker: after + all. It introduces justification, a reminder, or a reversal of expectation and modifies the whole clause rather than a single noun.

Functions: justify ("After all, we paid"), remind ("She came after all"), reverse expectation ("He failed at first but passed after all").
Because it's two separate words, joining or hyphenating it is incorrect in standard usage.

Spacing and punctuation - quick rules

Placement determines comma use:

Start of clause: "After all, ..." - comma recommended.
Mid-sentence: "... after all ..." - comma optional, based on rhythm.
Parenthetical: ", after all," - set off with commas when it interrupts the flow.

Start: After all, we had already agreed to the plan.
Mid (no comma needed): We decided to keep it after all.
Parenthetical: We kept it, after all, because the client insisted.

Hyphenation and variants

"after-all" and "afterall" are nonstandard. Convert them to "after all" in your writing; if you encounter a hyphen in a quoted source, preserve the quote but change it elsewhere.

Always convert: afterall → after all, after-all → after all.
Let automated fixes replace the words, then read the sentence to confirm comma placement.

Wrong: She said after-all it would be risky. →
Right: She said after all it would be risky.
Wrong: We can postpone afterall if needed. →
Right: We can postpone after all if needed.

Grammar note (how it functions)

"After all" behaves like an adverbial phrase that comments on the clause. It is not a compound modifying a noun, so keep it as two words and pick commas according to rhythm and emphasis.

Not equivalent to "altogether" or "afterwards" - choose the word that matches the meaning.
Examples: He left at noon; after all, he had an appointment. / I said no at first, but after all I helped.

Real usage and tone (work / school / casual)

Short, realistic examples with natural comma placement and tone.

Work - email: After all, the client requested the prototype by Friday.
Work - report: We retained the data after all because it supports the recommendation.
Work - chat: I'm joining late after all; traffic is awful.
School - essay: After all, these results confirm the hypothesis.
School - email to professor: I won't attend the lab, after all I have an exam at the same time.
School - discussion: I disagreed earlier, but after all the evidence tips the scales.
Casual - text: I didn't want to go, but I had fun after all.
Casual - chat: After all, it's just a weekend - no stress.
Casual - post: After all, coffee makes everything better.

Try your own sentence

Test the entire sentence, not just the phrase. Context usually makes comma placement and tone obvious.

Examples: wrong/right pairs (copy-ready)

Common mistakes and their fixes, including punctuation changes where needed.

Pair 1: Wrong: We can postpone the meeting afterall if the VP is traveling. →
Right: We can postpone the meeting after all if the VP is traveling.
Pair 2: Wrong: Afterall the numbers didn't add up. →
Right: After all, the numbers didn't add up.
Pair 3: Wrong: I finished the project afterall and left it on your desk. →
Right: I finished the project after all and left it on your desk.
Pair 4: Wrong: Do your introduction first, afterall the conclusion depends on it. →
Right: Do your introduction first; after all, the conclusion depends on it.
Pair 5: Wrong: I said no at first but afterall I agreed to help. →
Right: I said no at first, but after all I agreed to help.
Pair 6: Wrong: He didn't study and still passed afterall. →
Right: He didn't study and still passed after all.
Pair 7: Wrong: We shouldn't sell it after-all; it's valuable. →
Right: We shouldn't sell it after all; it's valuable.
Pair 8: Wrong: Afterall you were right about the timeline. →
Right: After all, you were right about the timeline.
Pair 9: Wrong: I can't come afterall. →
Right: I can't come after all.
Pair 10: Wrong: She agreed afterall to help with the report. →
Right: She agreed after all to help with the report.

Rewrite help - paste-ready rewrites and tones

Choose a tone and paste the corrected sentence; spacing and commas have been applied.

Formal:
Original: Afterall we were right to wait. →
Formal: After all, we were right to wait.
Neutral: Original: The team decided afterall to pursue the smaller contract. → Neutral: The team decided, after all, to pursue the smaller contract.
Casual:
Original: I can't come afterall. →
Casual: I can't come after all; sorry!
Email quick: Original: Afterall the client wanted the draft. → Email: After all, the client wanted the draft.
Slack: Original: I'm away afterall. → Slack: I'm away after all - back at 3pm.

Memory trick + quick editing checklist

Mnemonic: say "after" then "all" with a slight pause to force the space.

Checklist: search for "afterall" / "after-all" → replace with "after all" → read the sentence aloud and add/remove commas for natural pauses → confirm tone.
Use find-and-replace on a final pass, then check nearby punctuation.

Similar mistakes to watch for

Other common joined-word errors:

alot → a lot
alright → all right (or alright in informal settings; check style guide)
noone → no one
inspite → in spite

Pair: Wrong: She said inspite of everything it was fine. →
Right: She said in spite of everything, it was fine.
Pair: Wrong: I want to go alot more often. →
Right: I want to go a lot more often.
Pair: Wrong: Noone answered the call. →
Right: No one answered the call.

FAQ

Is "afterall" ever correct?

No. "Afterall" as one word is a typo or nonstandard. Use "after all" in modern writing.

When should I use a comma with "after all"?

Use a comma when "after all" begins a clause ("After all, ...") or when it interrupts the sentence as a parenthetical (", after all,"). Mid-sentence use can omit commas if it reads smoothly.

Can I hyphenate it as "after-all"?

No. Hyphenation is not standard. Convert "after-all" to "after all" unless quoting a source that uses the hyphen.

Is "after all" formal or informal?

It's neutral. Appropriate in both formal and informal contexts; in formal writing, use it when it clearly adds justification or clarification.

How do I stop typing it wrong?

Add a proofreading checklist item and use find-and-replace for "afterall" and "after-all" → "after all." The "say after then all" trick helps; grammar checkers also catch this error.

Quick next step

Search your document for "afterall" and "after-all" and replace with "after all." Paste one sentence here if you want help fixing spacing and commas.