I am an immigrant my spouse is citizen I want to file jointly

[Bsch4477]

You can do that but you will need a tax identification number. 

[rjs]

Telling us that you are an immigrant is not enough information. Many immigrants are U.S. citizens and many are not citizens. You could be a U.S citizen, a resident alien, or a nonresident alien.

If you are not a citizen, to determine whether you are a resident alien or a nonresident alien see Chapter 1, "Nonresident Alien or Resident Alien?" in IRS Publication 519, U.S. Tax Guide for Aliens.

If you are a citizen you do not have to do anything special to file jointly with your spouse. The fact that you are an immigrant makes no difference.

If you are a resident alien you are treated the same as a citizen for income tax filing. You do not have to do anything special to file jointly with your U.S. citizen spouse.

If you are a nonresident alien the only way you can file jointly is for you to choose to be treated as a resident alien for income tax purposes. If you do that you must include all of your worldwide income on your joint tax return. In most cases you must then continue to be treated as a resident in future years. For more details see "Nonresident Spouse Treated as a Resident" in Chapter 1 of Publication 519.

[pk]

@emailbroxas , agreeing with my colleagues  @Bsch4477  and @rjs  generally , what I get from your post is that 

(a) your spouse is US citizen

(b) you are in the USA on visa ( student / trainee ? ) and at this stage ( for the tax year 2024 ?) a Non-Resident Alien.  I say this because if you have work visa ( post meeting Substantial Presence Test ) or GreenCard (permanent immigrant ) nothing prevents you from filing jointly with your spouse.

If the above assumptions are correct then :

         1. If you already have a tax ID ( SSN or ITIN ) , you can , as part of your joint tax filing, include a request signed by both you and your spouse that you wish to be treated as a  tax resident for the full year.  This of course means that you are both taxed by the US on your world income.  Please see the Pub 519 references  by  @rjs

          2. If you do not have a tax ID, then you prepare your return as per 1. above but have to include a ITIN application ( for retrospective issuance ) -- W-7   -->  About Form W-7, Application for IRS Individual Taxpayer Identification Number | Internal Revenue Ser...   Note that this would mean you have to file by mail. 

AS you can see our answers are kind of generic because we do not have sufficient information -- please answer the questions posed by @rjs.  Those answers would allow the answer to be more focused to your  facts and circumstances.  AS always, if you are uncomfortable with answering on this public board, you can always  PM me ( just NO PII -- Personally Identifiable Information ).