How to Say 'Let Me Know' in Spanish: Avísame vs. Avíseme (Formal and Informal)
Learn to ask someone to keep you informed in Spanish. Use avísame with colleagues, avíseme with clients, and hágamelo saber for formal requests. Covers Latin American usage.
By PookieFriends & plans · Yapr Learn
In Spanish, the phrase 'let me know' is not a single fixed expression. The verb you choose and the form you use depend on who you are talking to and what kind of information you expect. This lesson teaches you three practical patterns: avísame and avíseme (from avisar, 'to notify') and hágamelo saber (literally 'make me know it'). You will learn when to use the informal tú form with a colleague and when to switch to the formal usted form with a client. You will also avoid a common confusion between avisar (to notify) and saber (to know). By the end, you will be able to ask for updates naturally in everyday work situations.
By the end, you can…
- ask a colleague to let me know using the informal tú command avísame.
- ask a client to let me know using the formal usted command avíseme or hágamelo saber.
Listen once. Try it slowly. Then say it without looking.
Checking available voices…
Avísame cuando tengas los detalles.
Let me know when you have the details.
ah-VEE-sah-meh KWAHN-doh TEHN-gahs lohs deh-TAH-yehs
Informal tú form. Use with a coworker, friend, or someone you address as tú. Common in Latin America.
Avíseme si hay algún cambio.
Let me know if there is any change.
ah-VEE-seh-meh see eye ahl-GOON KAHM-beeoh
Formal usted form. Use with a client, supervisor, or anyone you address as usted. Standard in business settings.
Me avisas cuando confirmes, por favor.
Let me know when you confirm, please.
meh ah-VEE-sahs KWAHN-doh kohn-FEER-mehs por fah-BOR
Informal present tense used as a request. Common in Latin America among colleagues. Softened with por favor.
¿Me avisa cuando reciba la información?
Will you let me know when you receive the information?
meh ah-VEE-sah KWAHN-doh reh-SEE-bah lah een-fohr-mah-SYOHN
Formal usted question. Use with clients or in professional contexts where usted is expected.
Hágamelo saber, por favor.
Please let me know.
AH-gah-meh-loh sah-BEHR por fah-BOR
Very formal. Literally 'make me know it.' Use with clients or in written correspondence when you want to sound especially polite.
Pronunciation guides are approximate. Slow playback keeps the original pitch.
Make it make sense
Useful pattern
The verb avisar means 'to notify' or 'to let someone know.' It is the natural choice for asking someone to give you an update. The command forms change with formality: avísame (tú) and avíseme (usted). You can also use the present tense as a request: me avisas (tú) or me avisa (usted). For example, Avísame cuando salgas (Let me know when you leave) is informal, while Avíseme cuando salga (Let me know when you leave) is formal. The phrase hágamelo saber is a more elaborate formal option. It combines hacer (to make) with me and lo and saber (to know). Use it when you want to be especially polite, such as with a new client.
When to use it
Choose avísame with colleagues, friends, and people you call tú. Choose avíseme or hágamelo saber with clients, older people, or anyone you address as usted. In Latin America, usted is common in business even among people who know each other. If you are unsure, avíseme is a safe formal choice. Do not confuse avisar with saber. Avisar means to notify or inform; saber means to know. So Avísame means 'Notify me,' not 'Let me know' in the sense of 'I know.' If you want to say 'Let me know' as in 'I want to know,' use Quiero saber or Me gustaría saber. But for asking someone to keep you informed, avisar is the correct verb.
Listen to each line, then take one part and reply out loud.
Señor López, ¿me avisa cuando reciba la información?
Mr. López, will you let me know when you receive the information?seh-NYOR LOH-pehs, meh ah-VEE-sah KWAHN-doh reh-SEE-bah lah een-fohr-mah-SYOHNClaro. Le aviso en cuanto la reciba.
Of course. I will let you know as soon as I receive it.KLAH-roh. leh ah-VEE-soh en KWAHN-toh lah reh-SEE-bahGracias. Y si hay algún cambio, avíseme, por favor.
Thank you. And if there is any change, please let me know.GRAH-syahs. ee see eye ahl-GOON KAHM-beeoh, ah-VEE-seh-meh por fah-BORPor supuesto. Le escribo esta tarde.
Of course. I will write to you this afternoon.por soo-PWEHS-toh. leh ehs-KREE-boh EHS-tah TAR-dehA little context goes a long way
In Latin American Spanish, the choice between tú and usted varies by country and situation. In many business contexts, usted is the default with clients, even if they are younger. In Spain, tú is more common in casual workplace settings, but usted remains for formal clients. The phrase hágamelo saber is widely understood but sounds more formal and is often used in writing. When in doubt, use avíseme with clients and avísame with close colleagues.
One thing to watch for
Using the informal avísame in a message that otherwise addresses the reader as usted.
Try this instead: Keep the address consistent: use Avíseme cuando tenga los detalles with usted and Avísame cuando tengas los detalles with tú. Déjame saber is also used in some varieties of Spanish; avísame and avíseme are useful broadly understood options.
Your turn
Try answering out loud before checking a possible answer.
1You are talking to your coworker, whom you address as tú. How do you say 'Let me know when you finish'?
Show a sample answer
Avísame cuando termines.
Avísame is the informal tú command of avisar. It is the natural way to ask a colleague to notify you. You could also say Me avisas cuando termines, which is equally valid in Latin American Spanish.
2You are writing to a client you address as usted. How do you say 'Please let me know' in a very polite way?
Show a sample answer
Hágamelo saber, por favor.
Hágamelo saber is a formal and polite expression. It literally means 'make me know it.' You could also say Avíseme, por favor, which is slightly less elaborate but still formal and correct.
3What is the difference between avisar and saber?
Show a sample answer
Avisar means 'to notify' or 'to let someone know.' Saber means 'to know.'
Avisar is used when you ask someone to give you information. Saber is used when you talk about knowing something. For example, Avísame means 'Notify me,' while Quiero saber means 'I want to know.'
Use avísame with people you call tú and avíseme or hágamelo saber with people you call usted. Remember that avisar means 'to notify,' not 'to know.'
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