The sign-off is the last thing someone reads before deciding how they feel about the whole email. A mismatched closing, too stiff for a casual message or too casual for a formal one, can undercut an otherwise well-written email in a single line, sometimes leaving a worse impression than a genuinely mediocre email with a closing that actually fits. Knowing how to end an email well is a small skill that pays off in nearly every message you send.
Worth clarifying upfront: a sign-off is specifically the short closing phrase itself, like "Best" or "Thanks." It’s one part of an email’s full ending, which also includes the closing line right before it and your name or signature after. This article focuses on the sign-off phrase, since that’s the piece most people get wrong.
Quick answer: Match your sign-off to the relationship. "Best" works for most professional emails, "Thanks" fits when asking for something, "Cheers" suits casual internal notes, and a warm brand-voice line works best for customers.
Professional Email Sign-Offs
For most business emails, a short, neutral, professional email closing works best. It should not draw attention to itself. It should just close the message cleanly before your name.
- Best
- Best regards
- Kind regards
- Regards
These options work for nearly any professional context: clients, vendors, colleagues you do not know well, or a first email to someone new. When in doubt, "Best" is close to a universal safe choice. "Thank you," in its various forms, deserves a special mention too: business communication research has repeatedly found that a simple thank-you closing performs well across almost every professional context, since people generally respond positively to feeling appreciated rather than just formally addressed.
Sign-Offs That Fit the Situation
Some email sign-offs work better when tied to what the message is actually asking for, rather than a generic close.
- Asking for something: "Thanks," or "Thanks in advance,"
- Following up: "Looking forward to hearing from you,"
- Wrapping up a longer conversation: "Talk soon,"
- Apologizing or addressing a mistake: "Appreciate your patience,"
Matching the sign-off to the content of the email, rather than defaulting to the same closing every time, makes the message feel more intentional and less like it was copy-pasted from a template someone filled in without thinking.
Casual and Internal Sign-Offs
Messages between close colleagues or within a casual company culture can drop the formal tone entirely.
- Cheers
- Thanks!
- Just your first name, with no closing line at all
Overly formal sign-offs in a casual internal thread can actually feel cold or out of place, the same way an overly casual sign-off feels wrong in a first email to a new client who doesn’t know you yet.
Sign-Offs for Customer-Facing Emails
Emails sent from a brand to a customer, like order confirmations, support replies, or marketing messages, work best with a warm but simple closing that matches your brand voice. Overly corporate phrasing like "Sincerely" can feel stiff for a small ecommerce brand, while something like "Talk soon" or "Happy shopping" fits a friendlier tone.
- Support replies: "Let us know if you need anything else,"
- Marketing emails: brand name alone, or a friendly line matching your tone
- Order or shipping updates: a short, warm close, since these are largely transactional
A Quick Reference by Email Type
Different email types call for different sign-offs, and picking the wrong register is one of the fastest ways to make an otherwise good email feel off.
| Email type | Recommended sign-off | Why |
|---|---|---|
| First email to a new client | Best regards, | Safe, professional, doesn’t presume familiarity |
| Ongoing client relationship | Best, or Thanks, | Warmer without dropping professionalism |
| Internal team message | Cheers, or first name only | Matches casual, fast-moving internal tone |
| Customer support reply | Let us know if you need anything else, | Signals the door stays open |
| Marketing or promotional email | Brand name, or a friendly line | Reinforces brand voice over formality |
| Apology or service recovery email | Appreciate your patience, or Thanks for your understanding, | Acknowledges the inconvenience directly |
| Cold outreach | Best, or Thanks for your time, | Neutral and low-pressure for someone who doesn’t know you yet |
Sign-Offs to Avoid in Most Situations
A few sign-offs tend to cause more harm than good in professional contexts:
- "Yours truly" (reads as overly formal or dated for most modern business email)
- No sign-off at all in a first email to someone new (can feel abrupt)
- Overly casual closings in a first message to a client, before any relationship exists
How Sign-Offs Change Across Cultures and Regions
A sign-off that reads as warm and professional in one market can land differently in another, which matters more than it used to now that most stores sell across borders. A few patterns worth knowing:
- US business email tends to favor brevity: "Best" or "Thanks" cover most situations without needing to be dressed up further.
- UK and much of Europe lean slightly more formal by default, where "Kind regards" is standard even in relationships that would use "Best" in the US.
- Japanese and other high-context business cultures often expect a closing line that references the relationship or upcoming interaction, not just a one-word sign-off, even in fairly short emails.
- Cold outreach across any region benefits from staying on the more formal side until the other person’s own reply signals it’s fine to relax.
None of this means rewriting your entire tone for every market. It just means treating a sign-off template built for one audience as a starting point, not a universal default, when a large share of your list is international and reading your emails from a different business culture entirely.
How Templates and Automation Affect Sign-Offs
Most stores now send the bulk of their email through automated flows and templates, not one-off manual messages, which changes how sign-offs actually get chosen. A sign-off baked into a template runs on every single send in that flow, so a mismatch compounds across thousands of emails instead of just one.
This is worth auditing directly: pull up your welcome series, abandoned cart flow, and support auto-replies, and check whether each one’s sign-off actually matches its purpose. It’s common to find a template built months ago still using a generic "Regards," when the rest of the email’s tone has since shifted to something warmer and more conversational, creating a small but noticeable mismatch.
Key Takeaways
- "Best" or "Best regards" work as a safe default for most professional email sign-offs
- Match the sign-off to the content, using "Thanks" for requests or "Talk soon" for ongoing threads
- Casual internal messages can drop formal closings entirely without seeming rude
- Customer-facing emails should reflect brand voice rather than defaulting to corporate phrasing
- Match the sign-off to the specific email type, not just the general relationship
- Cultural norms shift the default tone, so treat a sign-off template as a starting point for international audiences
- Audit sign-offs baked into automated flows and templates, since mismatches compound across every send
- Avoid sign-offs that feel dated, overly formal, or mismatched to the relationship
Final Thoughts
A sign-off is a small detail, but it is also the last impression an email leaves. Matching it to the relationship and the message’s purpose, rather than defaulting to the same closing every time, makes your emails feel more considered without adding extra effort or slowing down how quickly you write. If you are refining the tone of customer-facing emails more broadly, our guide on email marketing tips for small business covers the writing side in more depth. It pairs well with our guide on CC vs BCC, another small email habit that’s easy to get wrong without realizing it.
FAQs
“Best” or “Best regards” work well across most professional contexts, from first emails to ongoing client communication. Either one makes a safe, professional email closing.
Match the closing to the relationship and the message’s purpose, and default to “Best” or “Best regards” whenever you’re unsure.
Keep it warm and simple, like “Let us know if you need anything else,” matching your brand’s overall tone.
Yes, in casual internal threads with colleagues you know well, but avoid skipping it in a first email to someone new.
“Looking forward to hearing from you,” fits naturally when you’re waiting on a reply or next step.
Usually not. A friendly line matching your brand voice, or simply your brand name, tends to fit marketing emails better.
It can feel overly formal for everyday business email, though it still fits very formal letters or official correspondence.
Yes, to some extent. US email tends to favor brevity, while UK and European business email often defaults slightly more formal.
Review them whenever you update a flow’s content or tone, since a mismatched sign-off in a template repeats across every future send until someone catches it.
A sign-off is the short closing phrase itself, like “Best.” The full email ending also includes the closing line before it and your signature after.
Yes, it performs well across nearly every professional context, since it leaves people feeling appreciated rather than just formally addressed.
