How to Say ‘Let me know’ at Work

If you want to ask someone to update you or give you information at work, the phrase “Let me know” is a good start, but it can sound too casual or vague in many professional situations. The direct answer is that you should replace “Let me know” with more specific, polite, and action-oriented phrases depending on whether you are speaking in a meeting, writing an email, or chatting with a colleague. This guide will give you the exact phrases to use, explain the tone and context for each, and help you avoid common mistakes.

Quick Answer: What to Say Instead of ‘Let me know’

Here is a quick reference for the most common professional replacements for “Let me know”:

• For a direct request: “Please keep me updated.”
• For a deadline or decision: “Please advise by [date/time].”
• For feedback: “I would appreciate your feedback on this.”
• For a meeting follow-up: “Please share your thoughts after the meeting.”
• For a casual but polite request: “Just let me know when you have a moment.”

Understanding the Tone: Formal vs. Casual

The phrase “Let me know” is neutral but leans informal. In a workplace, the tone you choose depends on your relationship with the person and the situation. Below is a comparison table to help you decide.

Natural Examples for Different Work Situations

Here are natural, real-world examples of how to use these phrases in emails and conversations.

In Email

Example 1: Requesting a decision from a manager
“Dear Ms. Chen,
I have attached the revised budget proposal. Please advise on your approval by Friday so we can proceed with the next steps.
Best regards,
Alex”

Example 2: Asking a colleague for feedback
“Hi Jamie,
I have finished the draft of the client report. I would appreciate your feedback on the data analysis section before I send it out. Please let me know if you need any additional context.
Thanks,
Sam”

Example 3: Following up after a project update
“Dear Team,
Thank you for the update on the Q3 project. Please keep me informed of any changes to the timeline.
Best,
Maria”

In Conversation

Example 1: In a meeting
“Thank you for the presentation, David. Please share your final recommendations with me after you have reviewed the data.”

Example 2: One-on-one with a colleague
“I will send you the file this afternoon. Just give me a heads-up when you have reviewed it.”

Example 3: Asking a team member about a task
“Could you update me on the status of the client onboarding by end of day?”

Common Mistakes to Avoid

Even advanced English learners make these mistakes when using “Let me know.” Here are the most common ones and how to fix them.

Mistake 1: Being too vague

Wrong: “Let me know about the project.”
Why it’s wrong: The listener does not know what specific information you need.
Correct: “Please let me know the deadline for the project.” or “Please update me on the project’s budget status.”

Mistake 2: Using it in a very formal email

Wrong: “Let me know if you have any questions.” (in a formal email to a client)
Why it’s wrong: It sounds too casual for a client or senior executive.
Correct: “Please do not hesitate to contact me if you have any questions.” or “I welcome any questions you may have.”

Mistake 3: Forgetting to add a deadline

Wrong: “Let me know your decision.”
Why it’s wrong: Without a time frame, the person may delay responding.
Correct: “Please let me know your decision by Wednesday.” or “I would appreciate your decision by the end of the week.”

Mistake 4: Using it when you need a specific action

Wrong: “Let me know if you can attend the meeting.”
Why it’s wrong: It is better to ask for a clear confirmation.
Correct: “Please confirm your attendance for the meeting by Tuesday.”

Better Alternatives for Specific Situations

Here is a list of better alternatives organized by the specific situation you are in.

When you need a decision

• “Please advise on your decision.”
• “I look forward to your decision.”
• “Kindly confirm your decision by [date].”

When you need an update on progress

• “Please keep me updated on your progress.”
• “Could you provide a status update?”
• “I would appreciate a brief update on this.”

When you need feedback on a document or idea

• “I would value your feedback on this.”
• “Please share your thoughts on the attached document.”
• “Your input on this matter would be very helpful.”

When you are asking about availability

• “Please advise on your availability for a meeting next week.”
• “Could you let me know your available times?”
• “Please suggest a time that works for you.”

When you are following up after a conversation

• “Please keep me in the loop on this.”
• “I will wait to hear from you on the next steps.”
• “Please share any updates as they come.”

Mini Practice Section

Test your understanding with these four questions. Try to choose the best professional phrase for each situation.

Question 1: You are writing a formal email to your manager asking for approval on a new marketing plan. What is the best phrase to use?
A) Let me know if it’s okay.
B) Please advise on your approval of the marketing plan.
C) Tell me what you think.
Answer: B) “Please advise on your approval of the marketing plan.” This is direct, polite, and professional.

Question 2: You are chatting with a teammate about a shared task. You want to ask them to tell you when they finish their part. What is a good casual but polite phrase?
A) Inform me when you are finished.
B) Let me know when you’re done with your part.
C) Notify me of your completion.
Answer: B) “Let me know when you’re done with your part.” This is natural and polite for a teammate.

Question 3: You need a client to send you their feedback on a proposal by Friday. What should you write?
A) Let me know your feedback.
B) I would appreciate your feedback on the proposal by Friday.
C) Give me your feedback soon.
Answer: B) “I would appreciate your feedback on the proposal by Friday.” This is polite and includes a clear deadline.

Question 4: After a meeting, you want to tell everyone they can ask you questions. What is the most professional way to say this?
A) Let me know if you have questions.
B) Please feel free to reach out with any questions.
C) Ask me if you have questions.
Answer: B) “Please feel free to reach out with any questions.” This is warm, professional, and encourages communication.

Frequently Asked Questions (FAQ)

1. Is it ever okay to say “Let me know” at work?

Yes, it is perfectly fine to use “Let me know” in casual conversations with close colleagues, in instant messages, or in informal team chats. The key is to know your audience and the formality of the situation. For example, saying “Let me know when you’re free for a quick chat” to a teammate is natural and acceptable.

2. What is the most professional alternative to “Let me know”?

The most professional alternative depends on the context, but “Please advise” is a very common and safe choice for formal emails. For feedback, “I would appreciate your feedback” is excellent. For updates, “Please keep me informed” works well.

3. Should I always add a deadline when I ask someone to let me know something?

Yes, whenever possible. Adding a deadline shows respect for the other person’s time and helps you get a timely response. For example, instead of “Please let me know your thoughts,” say “Please let me know your thoughts by Thursday.”

4. How do I ask someone to “let me know” without sounding demanding?

Use polite softening phrases like “I would appreciate,” “Please,” “Could you,” or “When you have a moment.” For example, “Could you please let me know when you have a chance to review the document?” sounds much more polite than “Let me know when you review it.”

Final Tip

To sound more professional at work, always think about what specific information you need and why. Replace the vague “Let me know” with a clear request that includes the action, the deadline, and the reason if helpful. Practice using the alternatives in this guide, and you will communicate more effectively in emails, meetings, and everyday conversations.

For more guides on professional workplace phrases, visit our Workplace Speaking Phrases section. If you have questions about this guide, please contact us. You can also read our Editorial Policy to learn how we create our content.