11 Formal Synonyms for “I Will Let You Know”

You might have to share additional information with the other party at a later email. However “I will let you know” whether this is a suitable informal phrase in this context?

Luckily, this article is ready to serve! We have collected the best synonyms and here are ways in which you can say “I will let you know” professionally.

Do I Say “I will let you know” Is That Polite?

The best way to reply is “I will let you know.”  That’s a really productive phrase in formal writing because it shows that you are going to share more specific information.

Overall, it is very formal to use. It is like that because of the fact that it is useful in many written forms. When sending it as a part of an email to your supervisor, colleagues or clients you can’t go wrong with it.

This is the example to guide you through the process:

I will let you know once we have completed your application.

  • It’s polite and friendly.
  • For this, it is a professional way to tell someone to wait for more information.
  • It doesn’t define specifically when you will disclose more to them.
  • It’s overused.

I think perhaps “I will let you know” works in most of the formal emails. On the other hand, there are other words you can use in their place. You may have been thinking of learning more about them.

Thus, the next part of this text will show you how to write a professional and polite way to say “I will let you know” and we have provided examples for each one.

What to Say Instead of “I will let you know”

  • I will be in touch
  • I will get back to you
  • Let me get back to you
  • I will respond
  • I’ll email again
  • I will reply
  • I will get back in touch
  • I’ll talk to you again
  • Let me email you back
  • I’ll reach out
  • Bear With Me While I Figure This Out (Informal)

1. I will be in touch

You will be better off using “I will be in touch” instead of “I will let you know” if you want to change the tone between emails. It is a wonderful phrase, and it sounds more informal and casual.

To be honest, it is more effective in emailing employees. It means that they will hear some more from you really soon.

“I will be in touch” is as well one of the examples of an indefinite timeframe. This usually means “I will be in touch soon” or “I will be in touch as soon as possible.” So, it’s a relaxing way to say you will reply later without you putting pressure on yourself.

Check out this email template that will make it all clear:

Hi [Recipient],

Thank you for our discussion today. I will be in touch as soon as possible to discuss more details.

Best regards,

[Your Name]

2. I Will Get Back to You

You are polite to respond to someone’s mail when it has more information to help the person. It’s the reason why “I will get back to you” sounds good rather than “I will let you know.”

You can use it in the case of email correspondence with customers that inquire about your business. It shows that you have read their email, but if you don’t get a reply then you can give them a sufficient response later on.

Moreover, you can call this email example:

Hi [Name],

Thank you for reaching out. I’m currently tied up but I will get back to you by [date]. Appreciate your patience.


[Your Name]

3. Let Me Get Back to You

“Let me get back to you” is a great way to request for a response later.

It proves that you should ask some questions first to get the whole information that the person wants to know.

Therefore, you will certainly need it while emailing your clients. They may have emailed you to ask for the latest news but you don’t have the information they are after.

The first words “let me” indicate that you have to get the attention of your client and get permission. You are polite and respectful when you tell them you need more time.

We also ask you to go through this email template:

Hi [Recipient],

Thanks for reaching out. I need to gather some information before I can respond. Let me get back to you by [date].


[Your Name]

4. I Will Respond

Maybe you have an understanding of when you want to respond to somebody. A great alternative like “I will respond” will be suitable here.

But, the main thing is to understand the approximate day when you will write somebody again.

The line will work best when you’re writing to employees by email. Well, the confidence that comes with it suggests that you should be a boss and understand when you’re the only one who knows all the answers.

Please, take a look at this too:

Hi [Recipient],

Thank you for reaching out! I’ve received your email and I will respond to you as soon as possible.

Best regards,

[Your Name]

5. I’ll Email Again

You can try “I’ll email again” instead of “I will let you know” in a professional context.

It means that you are going to write back to someone quickly, but not precisely at a certain time.

Saying “I’ll email again” lets the person know that there is no response required. In contrast, they don’t have to wait for you to be prepared to give further details.

It is an option to communicate with someone that is not sending a lot of emails.

And we also advise you to check this email template too:

Hi [Recipient],

I hope this email finds you well. Just a friendly follow-up to see if you had a chance to review my previous message. I’ll email again soon.

Best regards,

[Your Name]

6. I Will Reply

Maybe the “I will reply” is what you need that gives you confidence.

That implies you purpose of answering soon to the addressee. All that you have to do is wait for more details so that you can serve them with.

As it has such a confident tone, it is best to use it when corresponding with clients. In the end, you should be the one to answer questions that are related to business when they ask you as an employee of a company. 

It should be done confidently and you should let them know when you will get back to them.

In this example, let us see how this can be used in an email:

Hi [Recipient],

I hope this email finds you well. Just a quick note to let you know that I received your message and I will reply shortly.

Best regards,

[Your Name]

7. I Will Get Back in Touch

“I Will Get Back in Touch” can be a better option than “I will let you know” to sound apologetic and genuine in your reply.

It shows the recipient that you will come back to him once you have more details.

Of course “back in touch” is a little bit more informal. The use of ‘Yours truly’ in most formal emails is still effective, but you should use it only in case you are on good terms with the recipient.

You can utilize the following example as well:

Hi [Name],

Thank you for our discussion. I review the details and I will get back in touch with you shortly.

Best regards,

[Your Name]

8. I’ll Talk to You Again

Try out “I’ll talk to you again” in an informal situation. It’s okay when you are emailing people with whom you have a good connection.

It is typical of this expression to delay a reply to someone. The term “Again” is rather vague and does not give any specific indication as to when the recipient is supposed to do the action.

Hence, you need to collate all the information before replying. It’s a good way to tell someone you’ll get back to them in a day or two without being more specific than that.

Let us hope that you too will be inspired by this example:

Hi [Name],

Hope you’re well! Just a quick note to say I’ll talk to you again soon. Looking forward to our next conversation.


[Your Name]

9. Let Me Email You Back

You can request to mail them back using an expression such as “let me email you back.”

It is a great way to ask for a respectful leave to do your thing and then respond to the person at a later time.

You might use it when you will email your clients. It is a sign that you are giving them due respect and considering them dear, although you have to wait a little longer before you can write them another mail.

In addition, “let me” is a polite request. Therefore, the addressee will understand that he or she should not reply to your email until you are ready to send another email with updates.

Here’s a good example to demonstrate it for you:

Hey [Name],

Great to hear from you! Let me email you back later today with all the details. Looking forward to catching up!


[Your Name]

10. I’ll Reach Out

You can also use “I’ll reach out” instead of “I will let you know” in emails of business purpose.

It means that you are going to come back and talk to someone when you have something to tell them that is relevant.

It is recommendable to use this when sending emails to clients. It indicates that you have them in mind and will get back to them later with more information when it is possible for you to do so.

Of course, it does not specify a time for the update, though. But that’s okay. It’ll work great if you have the friendly relationship with the recipient.

Also, remember about this email sample:

Hi [Recipient],

I hope this email finds you well. Just a quick note to let you know I’ll reach out soon to discuss further.

Best regards,

[Your Name]

11. Bear With Me While I Figure This Out

“Bear with me while I figure this out” is a good casual way. You can use it when you want someone to be patient while you find the answers they need.

To my mind, this phrase is appropriate when chatting with coworkers. They may ask you for help with a project, and in that case, you should give them this notice before you can help them. 

Doing that, you will be able to decide exactly what they need before committing to anything.

Usually, this expression fails to work in formal writing. Please note that you should use the phrase in casual contexts only, since “bear with me” is not the most appropriate choice for a business setting.

“I will let you know” would be perfect for professional environments.

These cases will let you see it in action:

Hi Team,

Just a quick note to ask for your patience as I work through some details. Bear with me while I figure this out.


[Your Name]

About the author

Hello! My name is Zeeshan. I am a Blogger with 3 years of Experience. I love to create informational Blogs for sharing helpful Knowledge. I try to write helpful content for the people which provide value.

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