20+Other Ways to Say “I Will Let You Know”

By Andrew Jones

Ever found yourself saying, “I will let you know,” and wondered if there’s a more creative or professional way to express it? Whether you’re crafting an email, responding to a colleague, or simply chatting with a friend, finding the right phrase can make your communication more effective and engaging.

In this article, we’ll explore alternative expressions for “I will let you know” that suit a variety of contexts—formal, casual, and everything in between. Learning these options not only enriches your vocabulary but also ensures that your message feels more personalized and thoughtful.

Keep reading to discover fresh and versatile ways to say, “I will let you know,” and make your words leave a lasting impression!

Top List Of Other Ways to Say “I Will Let You Know”

  • I’ll Keep You Posted
  • I’ll Inform You
  • I’ll Update You
  • I’ll Get Back to You
  • I’ll Let You Know as Soon as Possible
  • I’ll Get in Touch with You
  • I’ll Make Sure to Let You Know
  • I’ll Be Sure to Keep You in the Loop
  • I’ll Fill You In
  • I’ll Let You Know When I Have More Information
  • I’ll Keep You Updated
  • I’ll Notify You
  • I’ll Be Sure to Update You
  • I’ll Send You the Details
  • I’ll Inform You Shortly
  • I’ll Keep You Informed
  • I’ll Reach Out to You
  • I’ll Let You Know Once I’ve Got an Answer
  • I’ll Touch Base with You
  • I’ll Keep You Posted on Any Changes
  • I’ll Keep You Abreast of the Situation
  • I’ll Make Sure You’re Informed
  • I’ll Follow Up with You

1. I’ll Keep You Posted

When you want to reassure someone that they’ll stay informed, “I’ll keep you posted” is a great choice.

Scenario Example:

Email from Henry to Leo Subject: Updates on the Project Status

Hi Leo,

I hope you’re doing well! I just wanted to touch base regarding the upcoming meeting. There are still a few details to be finalized, but I will keep you posted as soon as I have the confirmed schedule.

Best regards, Henry

Addition:

“I’ll keep you posted” works well for casual or ongoing updates, giving the recipient the confidence that they won’t be left in the dark. It suggests that you will stay in touch with the progress, even if things are still pending.

2. I’ll Inform You

“I’ll inform you” is a slightly more formal way of saying “I’ll let you know.” It’s often used in professional or formal communications.

Scenario Example:

Email from Henry to Leo Subject: Upcoming Business Conference

Dear Leo,

I wanted to inform you that the conference date has been finalized. I’ll inform you of the specific schedule as soon as I receive the official notice.

Best regards, Henry

Addition:

This phrase is ideal when you need to convey that you’ll deliver official or more detailed updates. It is professional and to the point.

3. I’ll Make Sure You’re Informed

This variation emphasizes your responsibility to keep someone updated.

Scenario Example:

Email from Henry to Leo Subject: Travel Arrangements

Hi Leo,

Just wanted to update you on the travel arrangements. I’ll make sure you’re informed of all the details once the final bookings are made.

Kind regards, Henry

Addition:

This phrase communicates reliability, indicating that you will ensure the recipient receives the information they need.

4. I’ll Get Back to You

“I’ll get back to you” is a casual alternative that suggests you will respond once you have more information.

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Scenario Example:

Email from Henry to Leo Subject: Pending Proposal

Hi Leo,

Thanks for your patience. I need to check a couple of things, but I’ll get back to you as soon as I have the details you need.

Best, Henry

Addition:

“I’ll get back to you” is commonly used in scenarios where there is a bit of delay or where you need time to gather more information. It’s less formal and appropriate for both business and personal communication.

5. I’ll Keep You in the Loop

This phrase suggests that you’ll keep someone up to date on any new developments.

Scenario Example:

Email from Henry to Leo Subject: Team Meeting Update

Hi Leo,

We’re still waiting for confirmation from a few team members. I’ll keep you in the loop as soon as I receive more information.

Best regards, Henry

Addition:

“I’ll keep you in the loop” is commonly used in business environments where multiple people need to be kept aware of changes or updates.

6. I’ll Let You Know When I Have More Information

A straightforward option that directly communicates that you’ll inform them as soon as you know more.

Scenario Example:

Email from Henry to Leo Subject: New Project Details

Hi Leo,

I don’t have all the details just yet, but I’ll let you know when I have more information.

Kind regards, Henry

Addition:

This variation is effective when you don’t have specific details at the moment but want to assure the recipient that you’ll keep them updated when things are clearer.

7. I’ll Fill You In

A more informal way of saying that you’ll share details as soon as they are available.

Scenario Example:

Email from Henry to Leo Subject: Meeting Feedback

Hi Leo,

Thanks for your input during the meeting today! Once I gather everyone’s feedback, I’ll fill you in on the next steps.

Best, Henry

Addition:

“I’ll fill you in” is typically used in casual or friendly contexts, often implying that the information shared will be detailed and comprehensive.

8. I’ll Notify You

“I’ll notify you” is a formal and direct way to say you will inform someone of any updates.

Scenario Example:

Email from Henry to Leo Subject: Training Schedule

Hi Leo,

The training schedule is being finalized. I’ll notify you as soon as I receive confirmation from HR.

Best regards, Henry

Addition:

This phrase is great for formal communication, particularly in professional settings where notifications are expected.

9. I’ll Share the Information with You

“I’ll share the information with you” suggests that you will send the relevant details as soon as possible.

Scenario Example:

Email from Henry to Leo Subject: Meeting Room Confirmation

Hi Leo,

The meeting room has yet to be confirmed. I’ll share the information with you as soon as it’s finalized.

Best, Henry

Addition:

This phrase implies a bit more formality and indicates that the information will be passed along once it’s collected.

10. I’ll Get Back to You with an Update

A more specific way of saying you will update them as soon as possible.

Scenario Example:

Email from Henry to Leo Subject: Project Timeline

Hi Leo,

I’m still waiting for some final details, but I’ll get back to you with an update soon.

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Kind regards, Henry

Addition:

This expression is often used when you have partial information but need to confirm further details before updating.

11. I’ll Send You an Update

“I’ll send you an update” works well when you’ll be sending an email or message with the new information.

Scenario Example:

Email from Henry to Leo Subject: Budget Approval

Hi Leo,

The budget is currently under review. I’ll send you an update once we have approval.

Best regards, Henry

Addition:

This version is commonly used when the update is expected to come in the form of an email or message and is a bit more formal.

12. I’ll Get You the Information Soon

This one is direct and implies that the information will be provided shortly.

Scenario Example:

Email from Henry to Leo Subject: Vendor Inquiry

Hi Leo,

I’m still awaiting a response from the vendor, but I’ll get you the information soon.

Best, Henry

Addition:

It’s a more casual and reassuring way to promise that the recipient won’t have to wait long.

13. I’ll Report Back to You

This phrase is a more formal way of saying you’ll return with updates after investigating or checking something.

Scenario Example:

Email from Henry to Leo Subject: Sales Figures

Hi Leo,

I need to review the latest sales figures, but I’ll report back to you once I have all the data.

Best regards, Henry

Addition:

“I’ll report back to you” is often used in professional environments where more detailed or official reports are expected.

14. I’ll Let You Know What I Find Out

This version suggests that you are still in the process of gathering information and will share the findings once they are clear.

Scenario Example:

Email from Henry to Leo Subject: Travel Plans

Hi Leo,

I haven’t confirmed the details yet, but I’ll let you know what I find out as soon as I have the information.

Kind regards, Henry

Addition:

This phrase conveys that you’re still actively working on gathering information, and it suggests a sense of investigation or discovery.

15. I’ll Keep You Updated

“I’ll keep you updated” suggests that you will provide ongoing updates as new information comes in.

Scenario Example:

Email from Henry to Leo Subject: Conference Planning

Hi Leo,

Things are moving along with the conference planning, and I’ll keep you updated with any new developments.

Best regards, Henry

Addition:

This phrase is ideal for situations where the recipient expects to receive several updates over time.

16. I’ll Pass the Information Along

This phrase is used when you intend to send information to someone else after receiving it.

Scenario Example:

Email from Henry to Leo Subject: Meeting Notes

Hi Leo,

I’m still awaiting the finalized meeting notes. Once I have them, I’ll pass the information along to you immediately.

Best, Henry

Addition:

“I’ll pass the information along” works best in scenarios where someone else has the information first, and you’re simply the messenger.

17. I’ll Let You Know as Soon as I Can

This one conveys urgency and a commitment to update them as soon as you’re able.

Scenario Example:

Email from Henry to Leo Subject: Document Review

Hi Leo,

I’m still reviewing the document. I’ll let you know as soon as I can.

Best, Henry

Addition:

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This phrase is useful when you want to show urgency but also indicate that you may need a bit of time before getting back to them.

18. I’ll Be Sure to Update You

“I’ll be sure to update you” is a reassuring way to promise that you won’t forget to keep someone informed.

Scenario Example:

Email from Henry to Leo Subject: Client Meeting

Hi Leo,

The client meeting is scheduled for next week. I’ll be sure to update you if anything changes.

Best regards, Henry

Addition:

This expression highlights your reliability, reassuring the recipient that they won’t be forgotten.

19. I’ll Send You the Details

“I’ll send you the details” is another straightforward and common alternative.

Scenario Example:

Email from Henry to Leo Subject: Software Update

Hi Leo,

The software update is scheduled for this weekend. I’ll send you the details once I receive the confirmation from IT.

Best, Henry

Addition:

This phrase is perfect for when the recipient is expecting specific details that will be sent to them later.

20. I’ll Inform You Shortly

“I’ll inform you shortly” implies that the information will be provided promptly.

Scenario Example:

Email from Henry to Leo Subject: Shipping Confirmation

Hi Leo,

I’m still waiting for the final confirmation from the supplier. I’ll inform you shortly once I have it.

Best regards, Henry

Addition:

This phrase is effective when you want to promise a quick follow-up without over-committing to an exact time.

21. I’ll Keep You Informed

This variation is often used when you expect to share a series of updates with the recipient.

Scenario Example:

Email from Henry to Leo Subject: Website Launch

Hi Leo,

We’re in the final stages of preparing for the website launch. I’ll keep you informed of the progress.

Best, Henry

Addition:

This is ideal for situations where updates will be ongoing, keeping the recipient well aware of developments.

22. I’ll Reach Out to You

“I’ll reach out to you” is an informal but common way of promising to make contact when necessary.

Scenario Example:

Email from Henry to Leo Subject: Vendor Pricing

Hi Leo,

I’m waiting for some vendor pricing details. I’ll reach out to you once I have the information.

Best regards, Henry

Addition:

This phrase suggests a more personal touch, indicating you’ll make the effort to personally contact the recipient when you have something to share.

23. I’ll Let You Know Once I’ve Got an Answer

This version is useful when you’re waiting for a definitive answer or confirmation from someone else.

Scenario Example:

Email from Henry to Leo Subject: Meeting Confirmation

Hi Leo,

I’m waiting for the meeting host to confirm the date. I’ll let you know once I’ve got an answer.

Best, Henry

Addition:

This is perfect when the information you need isn’t fully within your control, and you’re waiting on someone else to provide the answer.

Conclusion

Being able to express “I will let you know” in multiple ways can significantly enhance the tone and clarity of your communication. Whether you need to sound more formal, casual, or reassuring, these 23 alternatives will help you choose the right phrasing for every context.

By mixing and matching these expressions, you’ll be able to communicate efficiently while keeping your conversations varied and engaging.

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