How to end a professional email: closings, sign-offs, and examples

Why the Email Closing Matters

The last few sentences of an email carry disproportionate weight. They determine what the recipient does next: reply, act, or forget. A strong closing creates clarity and momentum. A weak closing leaves the conversation in limbo.

Most people focus their energy on the opening and body of an email. They craft the perfect subject line, write a compelling first sentence, and deliver their message clearly. Then they taper off with "Let me know" or "Thanks" and hit send. That final impression is what the recipient sits with.

The closing has two jobs. First, it tells the recipient what happens next. Second, it sets the tone for the relationship going forward. A vague closing like "Thoughts?" puts all the work on the recipient. A clear closing like "If Tuesday at 3pm works, I will send the invite" does the work for them.

Components of an Email Closing

A professional email ending has two distinct parts: the closing line (the last sentence or two of the body) and the sign-off (the formal farewell before your name).

The Closing Line

This is the final statement in your email body. It should accomplish one of three things:

State a clear next step. Tell the recipient exactly what you expect to happen next and who is responsible. "I will send the updated proposal by Thursday" is clear. "I will be in touch" is not.

Make the ask explicit. If you need something from the recipient, the closing line is your last chance to say so. "Could you confirm your availability by end of week?" gives them a specific action and deadline.

Express appropriate gratitude. When no action is needed, a closing that acknowledges the recipient's time or contribution ends the email on a positive note without being empty.

The Sign-Off

This is the word or phrase before your name. It signals the level of formality and the nature of your relationship with the recipient.

Professional Sign-Offs by Context

Formal Sign-Offs

Use these for first-time correspondence, executives, clients, legal or government communication, and job applications.

- "Sincerely" works for the most formal contexts. It signals respect without warmth.

- "Respectfully" is appropriate when addressing someone in authority or in situations involving disagreement or complaints.

- "With appreciation" works when the email involves a genuine expression of gratitude.

Standard Professional Sign-Offs

These work for most business emails where you have an established relationship.

- "Best regards" is the most versatile professional sign-off. It works in nearly every business context.

- "Kind regards" is slightly warmer than "Best regards" and common in European and international business communication.

- "Regards" is shorter and more neutral. It works but can feel abrupt without "Best" or "Kind" in front of it.

- "Thank you" works when the email involves a request or when you genuinely appreciate something the recipient has done.

Semi-Formal Sign-Offs

Use these for colleagues you know well, ongoing client relationships, or professional contacts where the tone has already become conversational.

- "Best" is the most popular semi-formal sign-off. It is short, professional, and universally inoffensive.

- "Thanks" is appropriate when you are asking for something or responding to help received.

- "Talk soon" works when a follow-up conversation is expected.

- "Looking forward to it" is effective when referencing a specific upcoming event, meeting, or milestone.

Sign-Offs to Avoid in Professional Emails

- "Cheers" can work in casual contexts but reads as too informal for most business communication, especially in North America.

- "XOXO" or "Love" are never appropriate in professional settings.

- "Sent from my iPhone" is not a sign-off. It is a default that signals you did not care enough to write a proper closing.

- "Thx" or "Ty" are too abbreviated for professional email.

- "Warm regards" is slightly outdated and can feel performative rather than genuine.

- No sign-off at all can feel abrupt, especially in longer emails. Short, informal exchanges between close colleagues can skip the sign-off, but most professional emails benefit from one.

Closing Line Examples by Situation

When You Need a Response

- "Could you let me know your decision by [date]?"

- "Would Friday work for a quick call to discuss next steps?"

- "I would appreciate your feedback on this by end of week."

- "Please let me know if you have any questions or concerns."

When You Are Providing a Deliverable

- "I have attached [document] for your review."

- "The updated report is attached. Let me know if anything needs adjusting."

- "I will send the final version by [date] once I have your feedback."

When You Are Following Up

- "I wanted to circle back on this. Is [original ask] still on your radar?"

- "Following up on my email from [date]. Let me know if you need any additional information."

- "I realize this may have gotten buried. Here is the key question: [restate ask]."

Knowing how to close a follow-up email effectively is just as important as knowing how to follow up on a cold email in the first place. The closing determines whether the conversation moves forward.

When You Are Closing a Conversation

- "Thanks for your help with this. I have everything I need."

- "I think we are aligned. I will proceed with [next step] unless you flag anything."

- "Appreciate the quick turnaround on this. No further action needed from your end."

When You Are Building or Maintaining a Relationship

- "I enjoyed our conversation. Let us stay in touch."

- "Thank you for making the time. I took several useful ideas from our discussion."

- "I look forward to working together on this."

Email Signature Best Practices

Your email signature appears after your sign-off and provides the recipient with your contact information and professional context.

Include the essentials. Full name, job title, company name, phone number, and email address. This is the minimum for a professional signature.

Keep it concise. A signature that is longer than the email body looks disproportionate. Four to six lines is the standard.

Skip the inspirational quotes. Motivational quotes in email signatures are polarizing and add no professional value.

Include one link maximum. Your company website or LinkedIn profile. Multiple social media links clutter the signature and rarely get clicked.

Make it mobile-friendly. Many emails are read on phones. A signature with complex HTML formatting, large images, or multiple columns can break on mobile. Test your signature on a phone before finalizing it. Choosing the right font for your email signature is part of this: stick to web-safe fonts that render consistently across devices.

Common Mistakes to Avoid

Ending with "Let me know." This is the most common weak closing. It does not specify what you want them to let you know about, by when, or in what format. Replace it with a specific ask.

Using "Thanks in advance." This assumes compliance before it is given and can come across as presumptuous, especially in initial outreach or requests to people you do not know well.

Apologizing unnecessarily. "Sorry for the long email" or "Sorry to bother you" weakens your position. If the email needed to be long, it needed to be long. Do not apologize for communicating professionally. Proper email etiquette is about clarity and respect, not constant qualification.

Mismatching tone. If the body of your email is formal, do not close with "Cheers." If the email is casual, do not close with "Respectfully." Consistency matters.

Forgetting a closing entirely. Ending an email abruptly after the last piece of information, without a closing line or sign-off, feels incomplete and can be perceived as rude.

Using "Best" as a crutch. "Best" is fine, but using it on every single email regardless of context suggests you are not thinking about the recipient. Vary your sign-offs based on the relationship and situation.

FAQ

What is the most professional email sign-off?

"Best regards" is the safest and most universally accepted professional sign-off. It works for external and internal communication, formal and semi-formal contexts, and every industry.

Should I include "Thank you" at the end of every email?

Only when there is something to thank the recipient for: answering a question, completing a task, making time for a meeting, or considering a request. Saying "Thank you" when there is nothing to thank them for dilutes its meaning.

Is it okay to use no sign-off in professional emails?

In brief, informal exchanges between colleagues who email frequently, skipping the sign-off is acceptable. In all other professional contexts, include one. It signals completeness and respect.

How should I end a cold email?

End with a specific, low-friction call to action. "Would you be open to a 15-minute call next week?" is clear and easy to respond to. Avoid high-friction closings like "Let me know when you are free for a full product demo." The closing of a cold email is often the difference between a reply and silence. Keeping the entire email brief, as discussed in our guide on cold email length, makes your closing more likely to be read.

Should my email closing match the recipient's style?

When possible, yes. If the recipient signs off with "Best," responding with "Sincerely" creates a formality mismatch. Mirror the level of formality the recipient uses, adjusting slightly more formal if you are unsure.