Writing an apology email that reads as sincere

Updated 2026-09-20 · a working page, not a sales page

Apology emails fail for a predictable reason: they spend three sentences on empathy language and one clause on what actually went wrong. The reader is looking for the cause, the fix and the date.

Short answer

Name the failure in the first sentence, in plain words, without 'inconvenience'.
Own the cause. 'There was a miscommunication' means 'nobody was responsible'.
State the fix and the date it is done. If it is already done, say that first.
Say what changes so it does not repeat, and make it checkable.
No 'we sincerely apologise for any inconvenience this may have caused'. 'Any' and 'may have' undo the apology.

The structure that works

Five lines: what broke, why, what is fixed now, what happens next, and one sentence of accountability that is not self-pitying. That is it. Length makes an apology worse, because every extra sentence looks like it exists to manage the reader rather than inform them.

If the failure was yours and not the process's, say so. Customers forgive individuals far more readily than 'processes'.

Phrases that destroy the apology

Each of these is read as a hedge by anyone who has received a corporate apology before:

'for any inconvenience' — implies there may not have been one

'we regret that you feel' — puts the problem in the reader's head

'unfortunately, due to unforeseen circumstances' — names nothing

'rest assured' — an instruction, not evidence

Replace each with the specific fact you are avoiding.

When the fix is not done yet

Say the date, give the reason it takes that long, and offer the one thing you can do now. An apology with a date is service; an apology with only regret is noise. If you cannot give a date, say what has to happen before you can, and when you will write again.

Before / after

What people usually write	What it looks like after
We sincerely apologise for any inconvenience this may have caused. Unfortunately, due to unforeseen circumstances, your order was delayed.	Your order shipped two days late. I mis-set the cut-off time on Friday and eight orders went out in the Monday batch. Yours was one of them.
We regret that you feel the experience did not meet expectations and we value your feedback.	You were charged twice. That is on us. I have refunded the second payment today and it should land in 3-5 days.
Rest assured, we have taken steps to ensure this does not happen again.	The cut-off is now automatic, so the mistake I made on Friday cannot be made by hand any more. You can see the setting on your account page.

What this page will not do. It cannot make a real failure disappear, and it should not be used to write around liability or to imply a refund you have not approved. If the situation is legal, get the facts straight before writing.

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Questions

How long should an apology email be?

Under 150 words for almost every case. Anything longer starts to look like it is protecting the sender.

Should I offer compensation?

Only if you will honour it within the timeframe you state. A vague offer is worse than none.

Is it OK to apologise for something that was the customer's mistake?

Yes, for the experience, but do not accept blame for the cause. Name what happened accurately.