How to Write an Apology Email: Steps, Templates and Phrases to Avoid

A good apology email does four things in order: acknowledge what went wrong, own your part without excuses, say how you are fixing it, and explain how you will prevent a repeat. Keep it short, specific and sent promptly. One clear "I am sorry" is enough. Below are templates for delays, mistakes and customer complaints, plus phrases that sound defensive.

The short answer

Write an apology email in four moves: acknowledge what happened, own your part, fix the problem, and prevent it happening again. Put the apology in the first two sentences, name the specific problem, and keep the whole message short. "I am sorry that the report reached you two days late" is stronger than "Apologies for any inconvenience".

Send it as soon as you know about the problem. A prompt, plain apology usually does more good than a long, polished one that arrives a week later.

The four-part structure

1. Acknowledge

Say what went wrong in plain words. The reader should be able to tell exactly which issue you mean without checking an earlier thread.

• Weak: "Apologies for the confusion."
• Better: "I am sorry that your order arrived with the wrong colour."

2. Own

Take responsibility for what is yours. Do not blame a colleague, a system or the reader, and do not bury the apology under reasons. A brief, factual explanation is fine if it helps the reader understand, but it must come after the apology and must not read as an excuse.

• Weak: "Unfortunately, due to circumstances beyond our control, there was a delay."
• Better: "The delay was our mistake. We underestimated how long the checks would take."

3. Fix

Say what you have done or will do, with a date or time where you can. This is the part the reader values most.

• "A replacement is on its way and will arrive by Friday 13 November."
• "I have corrected the figures in the attached spreadsheet. The changes are highlighted in yellow."

4. Prevent

One or two sentences on what changes next time. Do not promise what you cannot deliver.

• "From now on a second person will check every invoice before it is sent."

Tone: how to sound sincere, not stiff

• Use "I" or "we" and "sorry" once. "I am sorry" or "We apologise" is enough. Three apologies in one email start to sound anxious or insincere.
• Match the size of the apology to the size of the problem. A late reply needs one line. A billing error or a data mistake needs a fuller message.
• Avoid drama. "I am absolutely devastated" in a business email can make the reader feel they must comfort you.
• Do not ask for forgiveness. "I hope you can forgive me" puts the burden on the reader. Offer a fix instead.
• Stay specific. Names, dates, order numbers and amounts show you understand the problem.
• Spelling follows your reader. Write "apologise" for UK, Australian and Indian readers and "apologize" for American readers. Both are accepted in Canada, where "-ize" is more common.

Templates

Each template uses made-up example details. Swap in your own names, dates and facts, and adapt the wording to your voice rather than sending it unchanged.

Template 1: A missed deadline or delay

Subject: Update on the Q3 report and my apologies for the delay

Hello Priya,

I am sorry that the Q3 report was not ready on Monday as I promised. I underestimated the time needed to reconcile the regional figures.

I will send you the completed version by 3 pm on Thursday. In the meantime, I have attached the draft so you can see the sections that are finished.

For future projects I will confirm the timeline with you at the start and flag any risk at least two days before the deadline.

Thank you for your patience.

Kind regards, Daniel Okafor

Template 2: A mistake in your work

Subject: Correction to invoice 1042

Hello Mr Evans,

I am sorry for the error in the invoice dated 3 November. I charged £480 instead of £408.

I have issued a corrected invoice, attached, and the difference of £72 will be credited to your account by 14 November. Please disregard the earlier version.

Every invoice will now be checked by a second person before it is sent.

Please let me know if anything still looks wrong.

Regards, Daniel Okafor

Template 3: A customer complaint

Subject: Your order 58213 and what we are doing about it

Dear Ms Patel,

Thank you for telling us about the problem. I am sorry that the lamp arrived damaged and that you had to contact us to put it right.

I have arranged a replacement, which will arrive by Friday 13 November. You do not need to return the damaged item.

We have raised the packaging issue with our warehouse team so we can reduce the chance of it happening again.

If there is anything else I can do, please reply to this email and it will come directly to me.

Yours sincerely, Maria Lopez Customer Care, Brightside Home

Template 4: A late reply or a missed meeting

Subject: Sorry I missed our call

Hi Sam,

I am sorry I missed our call at 10 am today. I mixed up the time zones and did not notice until it had ended.

Could we reschedule for Wednesday at 2 pm or Thursday at 11 am? I will send a calendar invite as soon as you choose one.

Thanks for your understanding, Daniel

Template 5: Apologising to your manager

Subject: Newsletter send: my mistake and the fix

Hello Anna,

I want to let you know about an error I made in this morning's newsletter. I sent it to the old subscriber list. I should have checked the list name before sending.

I have already sent a short correction to the right list, and the unsubscribe requests from the wrong list will be cleared by end of day. To avoid this in future I will use a pre-send checklist.

I am happy to talk it through whenever suits you.

Best regards, Daniel

Phrases that sound defensive

Some common expressions weaken an apology or shift blame without meaning to.

When not to apologise by email

Email is not always the right channel. If someone is seriously hurt, upset or angry, call or speak to them first, then follow with a short email summarising what you agreed. For legal, safety or financial disputes, check with your manager or your organisation's policy before you admit fault in writing.

Before you send: a checklist

• Does the apology appear in the first two sentences?
• Have you named the specific problem, with dates or numbers?
• Is it clear who is responsible, without blaming others?
• Does the reader know what happens next, and by when?
• Have you promised only what you can do?
• Is the subject line honest and specific?
• Have you read it aloud once to check the tone?
• Is the length proportionate: three to six short sentences for a small slip, up to a few short paragraphs for a serious one?

Using AdeptWrite to draft and polish

• The Email & Letter Writer can create a first draft from a few details. It is AI-generated, so check every fact, date and promise before sending, because it cannot know what actually happened.
• The Tone Changer can soften a blunt draft or make a casual one more formal, in Formal, Office or Casual modes. Read the result and make sure it still sounds like you.
• The Grammar Checker catches typos and punctuation slips, which matter more than usual in an apology, and the Spell Checker lets you pick American or British English.

For wider tips on tone and structure, read how to write a professional email, professional email examples and how to end an email.

← All guides