35 Other Ways to Say “I Will Let You Know” (With Examples)

When it comes to communicating your plans or updates, finding the right words can truly make a difference. 35 other ways to say “I Will Let You Know” exist to express the same sentiment with warmth, care, and thoughtfulness. Using considerate and professional phrasing makes a message feel personal and shows respect for others, ensuring that your communication resonates meaningfully in both casual chats and formal settings.

What Does “I Will Let You Know” Mean?

“I will let you know” is a phrase used to indicate that the speaker will provide information or an update at a later time. It signals intention without committing to an immediate answer. It is often used in personal, professional, and casual conversations to manage expectations. I’m not sure about the meeting time yet, but I will let you know as soon as I find out.”When you genuinely need time to confirm details or make a decision. When overused or said without intention to follow up, it can seem careless. Polite, neutral, considerate.

When to Use “I Will Let You Know”

• When confirming plans, dates, or decisions that require thought or verification.
• In professional emails or conversations to manage expectations without committing prematurely.
• To politely defer an answer without sounding dismissive.

Tone: Considerate, professional, neutral.

Is It Professional/Polite to Say “I Will Let You Know”?

Yes. It is considered polite and professional when used appropriately. It shows respect for the other person’s inquiry while buying time to provide an accurate response.

Tone: Polite, respectful, non-committal.

Pros and Cons

Pros:

• Polite and neutral
• Provides flexibility for decision-making
• Avoids overcommitment

Cons:

• It can seem vague if overused
• Might be perceived as indecisive
• Requires follow-up to maintain trust

I Will Let You Know Synonyms:

• I’ll Keep You Posted
• I’ll Get Back to You
• I’ll Let You Know Soon
• I’ll Inform You
• I’ll Update You
• I’ll Reach Out to You
• I’ll Notify You
• I’ll Keep You Informed
• I’ll Let You Know Shortly
• I’ll Confirm With You
• I’ll Get in Touch
• I’ll Respond Soon
• I’ll Follow Up With You
• I’ll Keep You Advised
• I’ll Inform You as Soon as Possible
• I’ll Update You Shortly
• I’ll Let You Know in a Bit
• I’ll Get Back to You Shortly
• I’ll Communicate With You Soon
• I’ll Check and Let You Know
• I’ll Keep You Posted on That
• I’ll Notify You When Ready
• I’ll Respond Once I Know
• I’ll Get Back to You After Checking
• I’ll Let You Know Once Decided
• I’ll Contact You Soon
• I’ll Keep You In the Loop
• I’ll Let You Know at the Earliest
• I’ll Give You an Update
• I’ll Inform You Accordingly
• I’ll Update You When Possible
• I’ll Let You Know Once I Find Out
• I’ll Communicate Updates
• I’ll Check and Update You
• I’ll Keep You Posted Regularly

I’ll Keep You Posted

Meaning:
Informing someone that you will provide updates as information becomes available.

Explanation:
Implies ongoing communication and engagement. It’s slightly more casual than “I will let you know.”

Example:
“I’ll keep you posted on any changes to the schedule.”

Best Use:
For ongoing projects or updates.

Worst Use:
For one-time decisions that don’t require follow-up.

Tone:
Friendly, attentive, proactive.

I’ll Get Back to You

Meaning:
Indicates you will respond with information later.

Explanation:
Common in business contexts; promises a response after some consideration.

Example:
“I’ll get back to you once I review the proposal.”

Best Use:
Professional emails, meetings, or situations requiring review.

Worst Use:
If delayed indefinitely without response.

Tone:
Professional, polite, deferential.

I’ll Let You Know Soon

Meaning:
A polite variation emphasizing that the response will be relatively quick.

Explanation:
Conveys urgency while still deferring the decision or information.

Example:
I’m checking with my team and I’ll let you know soon.”

Best Use:
When you intend to respond promptly.

Worst Use:
If there’s no actual plan to reply quickly.

Tone:
Considerate, slightly urgent, polite.

I’ll Inform You

Meaning:
A formal way to communicate that you will provide information later.

Explanation:
Often used in professional or official contexts; emphasizes responsibility to inform.

Example:
“I’ll inform you once the documents are ready.”

Best Use:
Formal communication, business, or official correspondence.

Worst Use:
Casual conversations where this tone may feel stiff.

Tone:
Formal, responsible, professional.

I’ll Update You

Meaning:
Similar to “keep you posted,” focusing on providing new information.

Explanation:
Signals commitment to provide updates and maintain transparency.

Example:
“I’ll update you on the progress after each meeting.”

Best Use:
Projects, reporting, or ongoing processes.

Worst Use:
Situations requiring immediate decisions.

Tone:
Proactive, professional, informative.

I’ll Reach Out to You

Meaning:
A phrase indicating you will contact someone later with information or an update.

Explanation:
Suggests proactive communication and follow-up. Often used in business and networking contexts.

Example:
“I’ll reach out to you once I have the client’s feedback.”

Best Use:
Networking, client updates, professional follow-ups.

Worst Use:
When immediate action is needed.

Tone:
Professional, proactive, considerate.

I’ll Notify You

Meaning:
A formal way to convey that you will inform someone when new information arises.

Explanation:
Common in administrative, legal, or formal settings; emphasizes responsibility.

Example:
“I’ll notify you when the application has been approved.”

Best Use:
Official or formal communication.

Worst Use:
Casual conversations, as they may sound stiff.

Tone:
Formal, responsible, professional.

I’ll Keep You Informed

Meaning:
Indicates commitment to provide ongoing updates.

Explanation:
Implies continuous communication; shows transparency and reliability.

Example:
“I’ll keep you informed on the project’s progress.”

Best Use:
Long-term projects, management, and reporting.

Worst Use:
One-time notifications or trivial updates.

Tone:
Professional, informative, dependable.

I’ll Let You Know Shortly

Meaning:
Polite phrasing implying a quick response will follow.

Explanation:
Shows attentiveness and minimizes waiting time.

Example:
“I’m checking the details and I’ll let you know shortly.”

Best Use:
When the response is imminent.

Worst Use:
If delayed or vague.

Tone:
Polite, attentive, slightly urgent.

I’ll Confirm With You

Meaning:
Indicates you will provide a definite answer after verification.

Explanation:
Useful in professional and scheduling contexts; shows thoughtfulness.

Example:
“I’ll confirm with you after I speak to the manager.”

Best Use:
Meetings, scheduling, approvals.

Worst Use:
If confirmation is unlikely or delayed.

Tone:
Polite, considerate, professional.

I’ll Get in Touch

Meaning:
Casual alternative meaning you will contact someone later.

Explanation:
Friendly and informal; often used among colleagues or acquaintances.

Example:
I’ll get in touch once I have the details.”

Best Use:
Informal or semi-professional settings.

Worst Use:
Formal business communication where precision is needed.

Tone:
Casual, friendly, approachable.

I’ll Respond Soon

Meaning:
Indicates a timely reply is forthcoming.

Explanation:
Emphasizes quick attention and courtesy in communication.

Example:
“I’m reviewing your request and I’ll respond soon.”

Best Use:
Emails, messages, and inquiries require prompt replies.

Worst Use:
If no response is actually given soon.

Tone:
Polite, attentive, professional.

I’ll Follow Up With You

Meaning:
Suggests ongoing engagement and checking back for updates or results.

Explanation:
Often used in professional, sales, or project management contexts.

Example:
“I’ll follow up with you after the client meeting.”

Best Use:
Projects, business deals, professional follow-ups.

Worst Use:
For casual, one-off information.

Tone:
Professional, proactive, responsible.

I’ll Keep You Advised

Meaning:
Formal way of promising updates or guidance.

Explanation:
Common in professional, legal, or administrative contexts.

Example:
“I’ll keep you advised on any changes to the contract.”

Best Use:
Formal communication, professional contexts.

Worst Use:
Casual settings.

Tone:
Formal, responsible, informative.

I’ll Inform You as Soon as Possible

Meaning:
Conveys urgency and promptness while deferring the response.

Explanation:
Highlights consideration for timely communication.

Example:
“I’ll inform you as soon as possible once the report is ready.”

Best Use:
Professional, urgent matters, time-sensitive updates.

Worst Use:
If delayed or vague.

Tone:
Polite, urgent, professional.

I’ll Update You Shortly

Meaning:
Similar to #15, emphasizing a brief wait before information is shared.

Explanation:
Communicates attentiveness and efficiency.

Example:
“I’ll update you shortly after reviewing the documents.”

Best Use:
Email, messages, professional or personal settings.

Worst Use:
If information takes a long time to arrive.

Tone:
Polite, attentive, considerate.

I’ll Let You Know in a Bit

Meaning:
Casual, friendly phrasing indicating a short delay before answering.

Explanation:
Suitable for informal settings; shows casual consideration.

Example:
I’ll let you know in a bit after I check with the team.”

Best Use:
Informal messages, friends, colleagues.

Worst Use:
Formal professional emails.

Tone:
Friendly, casual, polite.

I’ll Get Back to You Shortly

Meaning:
Combines formality with the promise of a quick response.

Explanation:
Professional, polite, and time-conscious.

Example:
“I’ll get back to you shortly with the confirmed schedule.”

Best Use:
Professional emails, business inquiries.

Worst Use:
If delayed unnecessarily.

Tone:
Polite, attentive, professional.

I’ll Communicate With You Soon

Meaning:
Slightly formal way to promise upcoming communication.

Explanation:
Shows clarity, responsibility, and polite intent.

Example:
“I’ll communicate with you soon regarding the updates.”

Best Use:
Professional or formal communication.

Worst Use:
Casual conversations.

Tone:
Polite, formal, considerate.

I’ll Check and Let You Know

Meaning:
Indicates intention to verify details before responding.

Explanation:
Shows thoroughness and responsibility.

Example:
I’ll check the availability and let you know by this afternoon.”

Best Use:
Scheduling, professional, or queries.

Worst Use:
If checking is unnecessary or already known.

Tone:
Polite, professional, careful.

I’ll Keep You Posted on That

Meaning:
Informal phrasing emphasizing continued updates.

Explanation:
Friendly, conversational alternative.

Example:
“I’ll keep you posted on that new project.”

Best Use:
Informal professional or casual situations.

Worst Use:
Formal correspondence.

Tone:
Friendly, casual, attentive.

I’ll Notify You When Ready

Meaning:
Signals an intention to inform once something is prepared or finalized.

Explanation:
Emphasizes readiness and responsibility.

Example:
“I’ll notify you when the files are ready for review.”

Best Use:
Professional, formal situations.

Worst Use:
Casual conversation.

Tone:
Polite, formal, responsible.

I’ll Respond Once I Know

Meaning:
Indicates deferred response until information is confirmed.

Explanation:
Honest and transparent phrasing.

Example:
I’ll respond once I know the final numbers.”

Best Use:
Professional, honest communication.

Worst Use:
Overuse may appear indecisive.

Tone:
Transparent, polite, professional.

I’ll Get Back to You After Checking

Meaning:
Suggests a careful, deliberate response after verification.

Explanation:
Demonstrates diligence and accountability.

Example:
“I’ll get back to you after checking the schedule.”

Best Use:
Professional, administrative, or inquiries.

Worst Use:
Informal chats where speed is preferred.

Tone:
Polite, careful, professional.

I’ll Let You Know Once Decided

Meaning:
Indicates response will come after a decision is made.

Explanation:
Polite, neutral, and transparent.

Example:
“I’ll let you know once we decide on the budget allocation.”

Best Use:
Planning, professional decisions.

Worst Use:
When the decision is immediate or obvious.

Tone:
Neutral, polite, professional.

I’ll Contact You Soon

Meaning:
Slightly formal alternative indicating intent to reach out.

Explanation:
Useful for professional and semi-formal communication.

Example:
“I’ll contact you soon with the final details.”

Best Use:
Emails, calls, professional follow-ups.

Worst Use:
Very casual messaging among friends.

Tone:
Polite, professional, attentive.

I’ll Keep You In the Loop

Meaning:
Informal, friendly way to promise ongoing updates.

Explanation:
Shows inclusion, attentiveness, and collaboration.

Example:
I’ll keep you in the loop on the project progress.”

Best Use:
Team communication, informal professional settings.

Worst Use:
Formal communication where a casual tone may not fit.

Tone:
Friendly, collaborative, attentive.

I’ll Let You Know at the Earliest

Meaning:
Formal way to promise a prompt response.

Explanation:
Conveys urgency and professionalism.

Example:
I’ll let you know at the earliest regarding the approval.”

Best Use:
Professional, urgent matters.

Worst Use:
Casual conversations.

Tone:
Polite, formal, urgent.

I’ll Give You an Update

Meaning:
Indicates you will provide information once available.

Explanation:
Friendly, professional, and neutral phrasing.

Example:
I’ll give you an update after I meet the client.”

Best Use:
Professional, semi-formal communication.

Worst Use:
Situations where immediacy is expected.

Tone:
Polite, professional, friendly.

I’ll Inform You Accordingly

Meaning:
Formal, precise phrasing for sharing information.

Explanation:
Common in official correspondence; shows responsibility.

Example:
“I’ll inform you accordingly after the review.”

Best Use:
Professional, formal communication.

Worst Use:
Casual conversation.

Tone:
Formal, responsible, professional.

I’ll Update You When Possible

Meaning:
Polite phrasing signaling updates will follow when feasible.

Explanation:
Shows consideration for time and effort.

Example:
I’ll update you when possible regarding the schedule changes.”

Best Use:
Professional, careful, non-urgent updates.

Worst Use:
Situations requiring immediate response.

Tone:
Polite, considerate, professional.

I’ll Let You Know Once I Find Out

Meaning:
Honest, transparent phrase for delayed information.

Explanation:
Indicates intention to provide information when known.

Example:
“I’ll let you know once I find out about the conference date.”

Best Use:
Professional, casual, and personal settings.

Worst Use:
Overused delays can appear careless.

Tone:
Transparent, polite, considerate.

I’ll Communicate Updates

Meaning:
Formal phrasing emphasizing active information sharing.

Explanation:
Useful in professional, project-based, or formal settings.

Example:
I’ll communicate updates after the meeting with the team.”

Best Use:
Professional, structured updates.

Worst Use:
Casual messaging.

Tone:
Formal, professional, responsible.

I’ll Check and Update You

Meaning:
Indicates verification before sharing information.

Explanation:
Shows diligence and responsibility.

Example:
“I’ll check the results and update you accordingly.”

Best Use:
Professional, detailed, administrative tasks.

Worst Use:
Casual chats needing quick answers.

Tone:
Polite, careful, professional.

I’ll Keep You Posted Regularly

Meaning:
Friendly, proactive phrasing emphasizing consistent updates.

Explanation:
Shows engagement, attentiveness, and reliability.

Example:
“I’ll keep you posted regularly on the project milestones.”

Best Use:
Long-term projects, collaborative work.

Worst Use:
One-time updates.

Tone:
Friendly, professional, proactive.

Final Thoughts

Choosing the right way to say “I will let you know” is more than just vocabulary-it reflects your attentiveness, professionalism, and empathy. Whether in a formal business email, a team meeting, or a casual conversation with friends, the phrasing you select communicates tone, intention, and respect. Subtle differences, such as “I’ll keep you posted” versus “I’ll inform you accordingly,” can shift the perception from friendly and approachable to formal and authoritative.

Using alternatives thoughtfully ensures clarity, reduces misunderstandings, and strengthens relationships. For ongoing projects, phrases like “I’ll update you regularly” or “I’ll keep you in the loop” signal engagement and reliability. In urgent situations, “I’ll let you know shortly” or “I’ll respond soon” conveys attentiveness. Meanwhile, formal expressions such as “I’ll notify you” or “I’ll inform you accordingly” maintain professionalism in official communication.

Consistency and follow-up are key. Saying “I’ll let you know” without action can appear careless, whereas timely updates demonstrate responsibility. Expanding your language with these alternatives allows for nuanced communication that fits the situation, audience, and tone. Ultimately, choosing the most suitable phrasing fosters trust, shows respect for others’ time, and elevates your interpersonal and professional communication.

Mastering these alternatives transforms a simple statement into a thoughtful and impactful message that resonates across personal and professional contexts.

FAQs

Is “I Will Let You Know” formal enough for business emails?

Yes, it is generally polite and professional. For higher formality, alternatives like “I’ll notify you” or “I’ll inform you accordingly” are better suited. They convey responsibility and maintain a professional tone in business correspondence.

What’s the difference between “I’ll keep you posted” and “I’ll get back to you”?

“I’ll keep you posted” implies ongoing updates, ideal for projects. “I’ll get back to you” signals a response after review or consideration, suitable for specific questions or confirmations. Tone and context determine the best choice.

Can I use casual alternatives in professional communication?

Yes, in semi-formal or friendly professional contexts. Phrases like “I’ll let you know in a bit” or “I’ll get in touch” can work with colleagues or familiar clients, but avoid them in highly formal emails or official notices.

How can I ensure follow-up after saying “I’ll let you know”?

Set reminders, schedule check-ins, or update proactively. Following through builds trust and avoids appearing indecisive or careless. Consistent communication reinforces professionalism and reliability.

Why is choosing the right alternative important?

Selecting the appropriate phrasing ensures clarity, sets expectations, and conveys the right tone-whether formal, casual, or urgent. It prevents misunderstandings and demonstrates attentiveness, enhancing both personal and professional relationships.