How you end an email matters more than most people realize. The closing is the last thing the recipient reads, and it shapes their final impression of the email — and of you. A strong ending reinforces your message, makes the next step clear, and leaves the reader feeling respected. A weak ending creates ambiguity, undermines your professionalism, or simply fizzles out without impact.

The right email closing depends on three factors: your relationship with the recipient, the formality of the situation, and what you want to happen next. This guide covers the closings, sign-offs, and final sentences that work for every professional situation.

Professional Email Closings by Formality

Formal Closings

Use these when emailing executives, clients you don't know well, government officials, or in any situation where professionalism and respect are paramount.

Sincerely, — The most universally appropriate formal closing. Safe in every professional context. Use this as your default when you're unsure.
Respectfully, — Appropriate when writing to someone senior to you or in a position of authority. Common in government, military, and academic correspondence.
Best regards, — Slightly warmer than "Sincerely" while maintaining full professionalism. The most popular formal closing in business email.
Kind regards, — A touch warmer than "Best regards." Popular in international business communication.
With appreciation, — Use when the email involves gratitude or when the recipient has done something for you.
Respectfully yours, — Very formal. Appropriate for official correspondence, legal matters, or cultural contexts that value high formality.

Standard Professional Closings

Use these for most workplace communication — colleagues, business partners, clients with established relationships, and professional contacts.

Best, — The workhorse of professional email closings. Professional without being stiff, appropriate in nearly every business context.
Thanks, — When the email involves a request or when you're genuinely grateful. Short, warm, and universally appropriate.
Thank you, — Slightly more formal than "Thanks," appropriate when expressing genuine gratitude.
Regards, — Professional and neutral. Some find it slightly cold, but it's perfectly appropriate.
All the best, — Warm and professional. Good for closing emails with a personal touch.
Looking forward to hearing from you, — When you're expecting a response. Works as both a closing line and a sign-off.
Talk soon, — For people you'll communicate with again soon. Casual but professional.

Casual Professional Closings

Use these for colleagues you work with daily, team members, or professional contacts with an established casual relationship.

Cheers, — Popular in certain workplaces and cultures (especially UK, Australia). Check your workplace culture before using.
Take care, — Warm and friendly. Appropriate when closing a more personal professional conversation.
Have a great weekend, — When sending a Friday email. Adds a human touch to routine communication.
Enjoy the rest of your day, — Similar warmth, works any day of the week.

How to Write the Last Sentence Before Your Closing

The final sentence of your email is as important as the sign-off. It should either summarize the action you need, express gratitude, or provide a clear next step.

When You Need a Response

"I'd appreciate your input by Friday so we can finalize the plan."
"Could you confirm your availability for any of the times I suggested?"
"Please let me know if you have any questions about the proposal."

When You're Providing Information

"I hope this helps — feel free to reach out if you need any clarification."
"Let me know if you'd like me to go into more detail on any of these points."
"I'm happy to discuss further if that would be useful."

When You're Expressing Gratitude

"Thank you for taking the time to review this thoroughly."
"I really appreciate your help with this — it made a significant difference."
"Thanks again for your flexibility on the timeline."

When You're Wrapping Up a Project or Thread

"I think we're in great shape — nice work, everyone."
"Looking forward to seeing the final results."
"Thanks for a productive meeting — I'll send the recap this afternoon."

Closings to Avoid

"Sent from my iPhone" — This isn't a closing; it's an excuse for typos. Either remove the default signature or replace it with a proper sign-off. Leaving it as your only closing looks careless.

No closing at all — Ending an email abruptly with no sign-off feels cold, even in casual workplaces. Even a simple "Thanks" is better than nothing.

"Best" followed by nothing — Include your name after your closing. A sign-off without a name feels incomplete.

"Thx" or "Ty" — Text abbreviations have no place in professional email. Take the extra second to type "Thanks."

"Warm regards" — This is debated. Some find it perfectly professional; others find it oddly intimate for a work context. If you're unsure, stick with "Best regards."

"Looking forward to your response" (when it's passive-aggressive) — This closing is fine when you're genuinely anticipating a reply. It's not fine when you're using it to pressure someone who hasn't responded.

"Please do the needful" — While common in some regions, this phrase is often perceived as awkward or overly formal in American and European business contexts. Use "Please let me know if you need anything else" instead.

Matching Your Closing to the Situation

Job Applications and Interviews

Use formal closings that project professionalism and respect:

"Thank you for your consideration. I look forward to discussing this opportunity further."
Closing: Sincerely, or Best regards,

Client Communication

Match the formality to your client relationship:

New clients: Best regards, or Sincerely,
Established clients: Best, or Thanks,
Always err slightly more formal than you think necessary

Internal Team Communication

Keep it efficient and warm:

Thanks, or Best, for most situations
Talk soon, or Have a great weekend, for casual context
For leadership: maintain one level more formal than peer communication

Difficult or Sensitive Emails

When delivering bad news, declining requests, or addressing conflicts:

"I appreciate your understanding on this matter."
Closing: Best regards, or Sincerely, — never casual
Avoid "Thanks" when you're not genuinely thanking them for anything

Cold Outreach

When emailing someone for the first time:

"I'd appreciate the opportunity to discuss this further."
Closing: Best, or Best regards,
Avoid overly formal closings that make your email feel like junk mail

Email Signature Best Practices

Your email signature is part of your closing and should include:

Essential elements:

Full name
Job title
Company name
Phone number (for external emails)

Optional elements:

LinkedIn profile URL
Company website
Pronouns (if you want to include them)
Professional certification abbreviations

Avoid in signatures:

Inspirational quotes (they get old fast and can seem unprofessional)
Large images or logos that create heavy attachments
Too many social media links
Legal disclaimers longer than the email itself
Multiple phone numbers and addresses (keep it clean)

Keep your signature to 4-5 lines maximum. A signature that takes up more space than your email body is distracting.

The One Rule That Matters Most

When choosing how to end a professional email, the most important principle is consistency. Pick a closing style that fits your professional identity and use it consistently. People notice when your closing changes from email to email, and inconsistency can signal uncertainty or inauthenticity.

Find your default closing — for most professionals, "Best," or "Thanks," works perfectly — and use it for the majority of your emails. Save formal closings for situations that genuinely call for them, and casual closings for relationships that have clearly earned them.

Your email closing is the period at the end of your professional sentence. Make it count, and you'll leave every recipient with a positive final impression.

If you're crafting email campaigns for your business, Sequenzy's email tools help you design professional emails with polished closings and clear calls to action that drive engagement.