🎓 Students & scholars

ITIN for International Students and Scholars

The honest answer is that most students on F-1, J-1 and M-1 do not need an ITIN — they need a Social Security number and do not realise they are eligible. Here is how to tell which one you are, before you spend three months on the wrong application.

Every rule on this page is cited to an IRS source, linked where it is used. Last read against those sources September 9, 2026.

An ITIN is a tax-filing number and nothing more. Applying for one does not give you immigration status, does not give you permission to work, and is not an application to any immigration agency. TaxSaveIQ sells no application service and earns nothing from your choice of route.

Quick answer

The three statuses do not share one answer. On F-1, actual authorised employment — a campus job you have been hired for, an assistantship, CPT endorsed on your I-20, or an OPT employment authorisation document — makes you eligible for a Social Security number, and that is then your number. On J-1, the same applies once your Responsible Officer authorises employment in writing. On M-1, employment is limited to practical training after your course of study on a USCIS employment authorisation document — no general on-campus work, no CPT, and none of the other off-campus routes F-1 students have — so for most of an M-1 programme there is no SSN route at all. An ITIN is right where there is no SSN route and there is taxable U.S. money: typically the taxable part of a scholarship or fellowship, or treaty-covered income a payer must report. Tick box f on Form W-7.

Key takeaways

Employment you actually have beats everything. An authorised campus job you have been hired for usually makes you SSN-eligible, which closes off the ITIN route. Being permitted to work is not the same thing.
M-1 is not F-1. No general on-campus employment, no CPT, and none of the other off-campus routes — practical training on a USCIS employment authorisation document, after the course of study, is the only one an M-1 student has.
The classic ITIN student is unfunded by work but funded by scholarship. The taxable part of that scholarship is the reason for the number — and required books, supplies and equipment come out of the taxable part before you get there.
Form 8843 alone does not need a number. No income, no ITIN.
The education credits gained an SSN condition in 2026 — for you, or your spouse if you file jointly, and for the student if the student is your dependent. It is a household test, not a flat bar on ITIN holders.
Talk to your DSO or responsible officer first. They see this every semester and it costs nothing.

The answer for most students

Many international students should not be applying for an ITIN. The single test that governs every ITIN application is whether you are eligible for a Social Security number — and a large share of students are, through employment they actually have. That qualifier is the whole point: the Social Security Administration issues a number against evidence of authorised employment, not against a visa category and not against work you could in principle look for. An F-1 student who is permitted to work on campus but has no job is not, on that basis, SSN-eligible. An ITIN application from someone who genuinely is SSN-eligible is rejected, and the rejection arrives 7 to 11 weeks later.

This page exists partly because the search results for student ITIN questions skew toward pages that would rather sell you an application than tell you not to file one. Nothing here is for sale.

Which branch are you on?

Start with your status, because F-1, J-1 and M-1 permit different work — and the Social Security Administration issues a number against the evidence of authorised employment, not against the visa stamp.

Status	What employment the status permits	What the SSA asks to see	When it is an ITIN instead
F-1 academic student	On-campus employment is permitted incident to F-1 status. Off-campus work requires separate authorisation: curricular practical training endorsed by the Designated School Official on the Form I-20, or optional practical training or severe-economic-hardship employment authorised by USCIS on a Form I-766 Employment Authorization Document.	For on-campus employment: evidence of the employment itself — a letter from the employing department or office identifying the job and confirming you have been hired — together with a letter from your Designated School Official, plus your Form I-20 and immigration documents. For curricular practical training: a Form I-20 endorsed by your DSO for that specific CPT authorisation. For optional practical training or severe-economic-hardship employment: the Form I-766 Employment Authorization Document issued by USCIS.	Where there is no authorised employment and therefore no SSN route, but there is taxable U.S. money — most often the taxable part of a scholarship or fellowship, or treaty-covered income a payer must report.
J-1 exchange visitor	Employment must be authorised in writing, in advance, by your Responsible Officer or programme sponsor, and it must be consistent with the category on your Form DS-2019. A student intern's placement is set out on Form DS-7002.	Your Form DS-2019, together with the written employment authorisation from your Responsible Officer or sponsor, plus your immigration documents. For a student intern, the Form DS-7002 covering the placement.	Where the programme does not authorise employment, but you receive taxable scholarship, fellowship or grant money, or treaty-covered income a payer must report.
M-1 vocational student	Practical training only, and only after you have completed your course of study, authorised by USCIS on a Form I-766 Employment Authorization Document. An M-1 student may not take general on-campus employment, is not eligible for curricular practical training, and cannot use the off-campus routes that exist for other statuses — severe-economic-hardship employment and the international-organization internship among them.	The Form I-766 Employment Authorization Document issued by USCIS for the practical training, together with your Form I-20 and immigration documents.	Before the practical-training EAD exists — which is most of an M-1 programme — there is no SSN route at all. If there is taxable U.S. money in that period, an ITIN is the number.

Source: IRS — Instructions for Form W-7 (Rev. 12/2024), read September 8, 2026. Employment rules from the USCIS and SEVP guidance for each status; box f on Form W-7 covers students, professors and researchers.

F-1 ACADEMIC STUDENT — THE MISTAKE TO AVOID

Telling an F-1 student they are SSN-eligible because on-campus work is available to them. Being permitted to work is not the same as having a job: the Social Security Administration wants evidence of actual employment before it will issue a number on that basis.

J-1 EXCHANGE VISITOR — THE MISTAKE TO AVOID

Treating the DS-2019 alone as employment authorisation. The Responsible Officer's written authorisation is the document that matters, and without it there is no SSN route.

M-1 VOCATIONAL STUDENT — THE MISTAKE TO AVOID

Describing M-1 like F-1. General on-campus employment, curricular practical training and the off-campus routes F-1 students can use are none of them available to M-1 students, so advice built on any of them is wrong for them.

And then your funding

Your situation	SSN or ITIN?	Why
You have been hired for an on-campus job (F-1)	Social Security number	On-campus employment is permitted incident to F-1 status, and once you have the job the SSA will issue a number against evidence of it — a letter from the employing department plus a letter from your DSO. Your international office does this every term.
You have a teaching or research assistantship	Social Security number	An assistantship is employment. The stipend is wages, reported on a Form W-2, and it needs an SSN.
You are on CPT or OPT (F-1)	Social Security number	Both are authorised employment. CPT is endorsed by your DSO on the I-20; OPT comes with a USCIS employment authorisation document. Either is what the SSA wants to see.
Your J-1 Responsible Officer has authorised employment in writing	Social Security number	The written authorisation is what matters, not the DS-2019 on its own. A student intern's placement is covered by Form DS-7002.
You are on M-1 with a practical-training employment authorisation document	Social Security number	The EAD is authorised employment, and it is the only employment an M-1 student may take. It comes after the course of study.
You are on M-1 with no employment authorisation document	ITIN, if there is taxable U.S. money	There is no on-campus route and no CPT for M-1, so there is nothing for the SSA to issue a number against. If the university must report a taxable award to you, an ITIN is the number.
Scholarship or fellowship beyond your qualified education expenses, no employment	ITIN	The excess over qualified education expenses is taxable, and the university has to report it. With no employment there is no SSN route, so this is a genuine ITIN case.
Treaty-covered income a payer must report, no employment	ITIN	The payer needs a number to apply the treaty rate and report the payment. This is one of the exception cases.
No U.S. income at all	Neither, usually	You may still need to file Form 8843 as a statement of your presence. That form does not require a taxpayer number.

Source: IRS — Instructions for Form W-7 (Rev. 12/2024), read September 8, 2026. Box f covers students, professors and researchers.

When an ITIN genuinely is the right number

Two cases dominate, and both are exception cases under Form W-7.

The taxable scholarship

The common shorthand — “anything above tuition is taxable” — overstates it. A scholarship or fellowship is tax-free to a degree candidate to the extent it is used for qualified education expenses: tuition and fees required for enrolment or attendance, and fees, books, supplies and equipment required for the courses of instruction. Amounts used for room, board, travel, research, clerical help or optional equipment are not qualified expenses and are generally taxable — as is any part that represents payment for teaching, research or other services. When a university pays a nonresident student taxable scholarship money it must report the payment and withhold, and it needs a taxpayer number to do so. If you have no employment and therefore no SSN route, that is your ITIN.

Work out the taxable amount before you assume it is large. The common shorthand — 'anything above tuition and fees is taxable' — overstates the tax. Required books, supplies and equipment count too, so the taxable amount is often smaller than a student expects. Required course-related fees, books, supplies and equipment come out of the award alongside tuition; what is left after those, and after any part that is payment for teaching or research services, is the taxable piece.

Source: IRS — Topic no. 421, Scholarships, fellowship grants, and other grants, read September 9, 2026.

The paperwork here is different from a normal application. Because you are claiming an exception, no tax return is attached. What goes in instead is specific to the exception — for a scholarship with no treaty claim, Exception 2(c) asks for 4separate items, not one letter: the institution's original letter or official notification, a copy of your passport showing the valid U.S. visa, a letter from your DSO or Responsible Officer, and a Social Security Administration denial letter — or, if you hold F-1, J-1 or M-1 status and will not be working, the DSO or RO letter saying so in its place. A generic enrolment letter is none of those, and it is a common reason these applications stall.

Treaty-exempt income

Many countries have tax treaties with the United States that reduce or eliminate U.S. tax on particular kinds of student and researcher income. To apply a treaty rate, the payer has to identify you — which means a number. This is the other main student exception.

The five exceptions, for reference

The three that reach students are 2(a), 2(b) and 2(c), and they ask for different things. This is the detail, from the Exceptions Tables in the Instructions for Form W-7.

#	Who it covers	What goes in instead of the return
2(a)	Wages, salary, compensation and honoraria — treaty benefit claimed A nonresident alien claiming the benefit of a tax treaty that reduces or exempts withholding on wages, salary, compensation or honoraria payments, who is submitting Form 8233 to the payer.	An original letter of employment from the payer of the income, or a copy of the employment contract, or a letter requesting your presence to conduct business together with a contract. The treaty country and the treaty article you are relying on, entered on Form W-7. Also attach: Form 8233, with the withholding agent's portion completed.
2(b)	Scholarships, fellowships and grants — treaty benefit claimed A student, professor or researcher who is a nonresident alien claiming the benefit of a tax treaty on noncompensatory scholarship, fellowship or grant income, and who is submitting Form W-8BEN to the withholding agent.	An original letter or official notification from the college, university or other educational institution awarding the noncompensatory scholarship, fellowship or grant. A copy of your passport showing the valid U.S. visa issued to you. The treaty country and the treaty article, entered on Form W-7. A letter from the Social Security Administration declining to issue you an SSN — or, if you hold F-1, J-1 or M-1 status and will not be working, a letter from your Designated School Official or Responsible Officer instead. Also attach: A copy of Form W-8BEN given to the withholding agent.
2(c)	Scholarships, fellowships and grants — no treaty benefit claimed A student, professor or researcher who is a foreign individual receiving noncompensatory scholarship, fellowship or grant income subject to IRS information reporting or federal tax withholding during the current year, and who is not claiming a treaty benefit.	An original letter or official notification from the educational institution awarding the noncompensatory income. A copy of your passport showing the valid U.S. visa issued to you. A letter from your Designated School Official or Responsible Officer stating that you will be receiving noncompensatory income that is subject to IRS information reporting or federal tax withholding during the current year. A letter from the Social Security Administration declining to issue you an SSN — or, if you hold F-1, J-1 or M-1 status and will not be working, the DSO or RO letter stating that instead.
2(d)	Gambling winnings A nonresident alien receiving gambling winnings subject to IRS information reporting or federal tax withholding during the current tax year.	An original signed letter from the gambling establishment, on its official letterhead, showing your name and verifying that an ITIN is required for reporting or withholding of gambling winnings during the current tax year.

If your school is SEVP-approved it may be able to substitute its own certification letter — one that carries your name and SEVIS number, verifies the identity documents it has seen, encloses copies of them, and includes the signed DSO or RO statement — for submitting the identity documents themselves. Ask the international office whether yours does this.

Source: IRS — Instructions for Form W-7 (Rev. 12/2024), read September 8, 2026. Transcribed from the Exceptions Tables in the Instructions for Form W-7.

When it is a Social Security number instead

If you are eligible for an SSN, the ITIN route is closed — and that is good news, because an SSN does more.

It is free, and your international office will usually walk you through it.
It does not expire. An ITIN lapses after three consecutive years off a return.
It reaches credits an ITIN cannot on its own, including both education credits — which, since tax years beginning after 31 December 2025, require a Social Security number valid for work from you, or your spouse if you file jointly, and from the student if the student is your dependent.
It builds a record with the Social Security Administration, which matters if you stay and work in the U.S. later.

If the Social Security Administration turns you down, keep the letter. A denial is evidence for one of the Form W-7 exceptions, and it is far easier to obtain at the time than a year later when you need it.

How a student applies

Talk to your DSO or responsible officer
Before anything else. They will know whether your funding is employment you actually hold (SSN) or a taxable award (ITIN), which employment your status permits, and they write the letter several of the exceptions ask for by name. It costs nothing and it is the highest-value ten minutes in this process.
Complete Form W-7, box f
Nonresident alien student, professor or researcher filing a U.S. tax return, or claiming an exception.
Gather the documents
Your passport covers identity and foreign status on its own. Your current U.S. visa and your I-20 or DS-2019 will normally be part of the file too — check the current instructions for exactly what your reason code requires.
Add either the tax return or the exception letter
A return if you are filing one. If you are claiming the scholarship exception, the university's letter goes in instead.
Submit — and use the campus route if there is one
Many universities have an arrangement with a Certifying Acceptance Agent, or run document-certification sessions in filing season. If yours does, that is usually the best route: your passport stays with you and someone who does this all day checks the form.

Full detail on the form, the documents and the routes is on the Form W-7 walkthrough, and the eligibility checker will build your document list.

Form 1040 or Form 1040-NR, and where Form 8843 fits

Which return you file is a separate question from which number you hold, and students routinely conflate them.

	Form 1040-NR	Form 1040
Who files it	Nonresidents for tax purposes — which most F and J students are during their exempt period	Residents for tax purposes, including students whose exempt period has ended and who then meet the day-count test
Standard deduction	Generally not available; a narrower set of itemised deductions applies instead	Available
Worldwide income	No — U.S.-source income only	Yes
Form 8843	Filed alongside, as a statement of your days of presence	Not applicable once you are a resident

On Form 8843: it is a statement, not a return. It records that your days in the U.S. do not count toward the substantial-presence test. If you have no U.S. income, you can file it without a taxpayer identification number — so having to file Form 8843 is not, by itself, a reason to apply for an ITIN.

What a student with an ITIN can and cannot claim

The credit and deduction rows that bear on this page

Credit or deduction	Available with an ITIN?	Amount	The test, and what it turns on
Credit for Other Dependents	Yes	$500 per dependent	The dependent must have a Social Security number, an ITIN, or an ATIN. There is no SSN-valid-for-employment condition on the dependent. This is the one that still works with an ITIN, and it is what a dependent's ITIN is usually worth. It starts to phase out above $200,000 of adjusted gross income.
American Opportunity CreditCHANGED	Depends on household SSNs	Up to $2,500 per student	For tax years beginning after 31 December 2025: you, or your spouse if you file jointly, and the student if the student is your dependent, must have a Social Security number valid for work, issued before the due date of the return including extensions. Read the 'or' and the 'and' literally. On a joint return one spouse's valid-for-work SSN satisfies the taxpayer half of the test. The student half is separate, and only bites where the student is your dependent — a student claiming the credit on their own return is the taxpayer.
Lifetime Learning CreditCHANGED	Depends on household SSNs	Up to $2,000 per return	The same test, from the same date: you, or your spouse if filing jointly, and the student if the student is your dependent, must have a Social Security number valid for work issued before the return's due date including extensions. Before 2026 an ITIN supported both education credits. It no longer does on its own — but a household is not automatically shut out either, because one qualifying SSN on the taxpayer side is enough.
Standard deduction and itemised deductions	Depends on residency status	Varies	No identification-number test. The test is residency status for tax purposes. A resident-alien ITIN filer takes the standard deduction like anyone else. A nonresident filing Form 1040-NR generally cannot, and itemises a narrower list instead. Which number you hold is irrelevant here.

Read the “depends” rows literally. Rows marked CHANGED moved under Public Law 119-21, enacted 4 July 2025, for tax years beginning after 31 December 2025. The education credits gained a valid-for-work Social Security number condition. Of the four new Schedule 1-A deductions, three — tips, overtime and the senior deduction — carry their own Social Security number conditions, each attaching to the person concerned rather than to the return. The qualified passenger vehicle loan interest deduction carries no Social Security number condition at all: it turns on the vehicle, the loan and the VIN, and on being a resident rather than a nonresident for tax purposes. Guides that sweep all four into one sentence get it wrong whichever way they sweep.

These are the rows that matter here. The complete credit and deduction matrix, with every row and the SSN comparison alongside it, is on ITIN vs SSN.

Source: IRS — Education credits: AOTC and LLC, read September 9, 2026. Child Tax Credit row from the IRS Child Tax Credit page; the Schedule 1-A rows from the IRS Schedule 1-A guidance and, for vehicle loan interest, the final regulations at T.D. 10054.

The education credits are the change that matters to students. For tax years beginning after 31 December 2025: you, or your spouse if you file jointly, and the student if the student is your dependent, must have a Social Security number valid for work, issued before the due date of the return including extensions.The Lifetime Learning Credit carries the same test from the same date. Read it as it is written rather than as “no ITIN households”: on a joint return one spouse's valid-for-work SSN satisfies the taxpayer half, and the student half only bites where the student is your dependent — a student claiming the credit on their own return is the taxpayer. A great deal of student tax guidance online still describes these credits as available on an ITIN. It is out of date. This is also, separately, a real argument for getting an SSN if you are genuinely eligible.

Note also that nonresidents filing Form 1040-NR generally cannot take the standard deduction, which changes the arithmetic more than most students expect. Run it on the 2026 federal tax calculator.

After graduation: OPT, an SSN, and the switch

For most students, the ITIN is temporary. OPT is authorised employment, so it makes you eligible for a Social Security number — and the day that number is issued, the ITIN stops being your number.

Stop using the ITIN immediately
Every form from that day forward carries the SSN. Never file with both.
Write to the IRS to merge the records
Your name, mailing address, ITIN, a copy of your Social Security card, and a copy of your CP565 notice. The IRS voids the ITIN and associates everything filed under it with the new number.
Tell your employer and your university
So the W-2 and the 1042-S for the year carry the right number. A form issued against the old number after the merge is how withholding goes missing.

The full procedure, the address, and what happens to your student-year filing history are on from ITIN to SSN.

Worked example

Two students, same university, different answers

Wei is an F-1 PhD student with a research assistantship. The assistantship is employment she actually holds, so she is eligible for a Social Security number — and she has the evidence the SSA wants: a letter from the department confirming the appointment, and a letter from her DSO. She should never file a W-7; an application would be rejected on eligibility grounds after a two-month wait. Her international office helps her get the SSN in a fortnight.

Diegois an F-1 master's student on a full scholarship with no job. His award covers tuition and required fees, plus $1,200 that he spends on books and equipment his courses require, plus $14,000 toward living costs. Tuition, required fees and the required books and equipment are all qualified education expenses, so none of that is taxable — the taxable amount is the $14,000 for room and board, not $15,200. The university must report and withhold on that part. With no employment there is no SSN route, so he files Form W-7 with box f, no tax return attached, and the Exception 2(c) evidence: the university's letter, his passport with the visa page, and the DSO letter.

Rosa is on M-1 at a vocational college, six months into an eighteen-month programme, with a taxable stipend from her award. She has read a page written for F-1 students and believes a campus job would get her a Social Security number. It would not: M-1 status does not permit general on-campus employment, does not reach curricular practical training, and does not open the off-campus routes an F-1 student can use. The only employment available to her is practical training after she finishes, on a USCIS employment authorisation document. Until then there is no SSN route, and an ITIN is the correct number.

Same campus, three answers. The variables are status and employment actually held — not enrolment, and not what work might in principle be available.

Frequently asked questions

Do international students need an ITIN?

Many do not, but it turns on your status and on whether you have actual authorised employment — not on the visa category alone. An F-1 student with a campus job, an assistantship, CPT endorsed on the I-20, or an OPT employment authorisation document is eligible for a Social Security number. A J-1 whose Responsible Officer has authorised employment in writing is too. An M-1 student is different: employment is limited to practical training after the course of study, on a USCIS employment authorisation document, so for most of an M-1 programme there is no SSN route at all. An ITIN is the right number where there is no SSN route and there is taxable U.S. money.

When does an F-1 student actually need an ITIN?

Chiefly when you have a scholarship or fellowship beyond your qualified education expenses, so part of it is taxable, and you have no actual authorised employment that would make you eligible for a Social Security number. Qualified education expenses are wider than tuition alone: they cover tuition and fees required for enrolment, and also fees, books, supplies and equipment required for your courses. Treaty-covered income that a payer must report is the other common case. Both fall under the Form W-7 exceptions, which ask for their own evidence rather than a tax return.

Do I need an ITIN to file Form 8843?

No. Form 8843 is a statement of your days of presence, not a tax return, and it can be filed without a taxpayer identification number if you have no U.S. income and no other reason for one. If you have no income at all, filing Form 8843 alone does not create a need for an ITIN.

Can I claim education credits with an ITIN?

Not on an ITIN alone, and the test is household-aware rather than a flat no. For tax years beginning after December 31, 2025, you — or your spouse if you file jointly — and the student, if the student is your dependent, must have a Social Security number valid for work, issued before the due date of the return including extensions. Read the 'or' literally: on a joint return one spouse's valid-for-work SSN satisfies the taxpayer half. If you are the student and you claim the credit on your own return, you are the taxpayer and it is your number the test looks at. This changed under Public Law 119-21 and a lot of older guidance has not caught up.

Can an M-1 student get a Social Security number?

Only once there is authorised employment to attach it to, and for an M-1 that means practical training after the course of study, authorised by USCIS on a Form I-766 Employment Authorization Document. M-1 students may not take general on-campus employment, are not eligible for curricular practical training, and cannot use the other off-campus routes that exist for F-1 students — severe-economic-hardship employment and the international-organization internship among them. Advice written for F-1 students therefore does not transfer. Before the EAD exists there is no route to an SSN, which means an ITIN is the number if there is taxable U.S. money — most often a taxable scholarship or fellowship.

My university asked for my ITIN. Should I apply?

Ask them first whether you are eligible for a Social Security number through employment you actually hold — many F-1 and J-1 students are and do not realise it, though an M-1 student generally is not until practical training begins. If you genuinely are not eligible and the university must report a taxable award to you, that is an exception case. The university's letter goes in place of a tax return, but it is not the only thing: Exception 2(c) also wants your passport showing the valid visa, a letter from your DSO or Responsible Officer, and an SSA denial letter or the DSO letter in its place.

Does having an ITIN affect my student visa status?

The IRS states that an ITIN neither provides nor changes immigration status. It is a tax number. That said, anything touching your status is a question for your Designated School Official, your J-1 responsible officer, or an immigration attorney — not for a tax website, and not for a service selling ITIN applications.

As a student, do I file Form 1040 or Form 1040-NR?

Most F and J students are exempt individuals for a period of years, meaning their days do not count toward the substantial-presence test, so they file Form 1040-NR as nonresidents. After that exempt period, the ordinary day-count test applies and you may become a resident for tax purposes and file Form 1040. The two returns have different rules on deductions and credits.

When I get an SSN after graduating, what happens to my ITIN?

You stop using it immediately, and you write to the IRS asking it to void the ITIN and associate everything filed under it with your new Social Security number. Skip that step and the wages and withholding from your student years stay attached to a number the IRS no longer connects to you.

Tools for the student return

2026 federal tax calculator — what the return actually comes to.
Tax refund estimator — most students with over-withheld scholarship tax are owed money back.
Self-employment tax calculator — if you have authorised freelance or 1099 work; see also ITINs and self-employment.
IRS form guides — plain-English walkthroughs of the schedules.

More in this ITIN guide

What is an ITIN?

Who needs one, who does not, and what it does and does not get you

ITIN Eligibility & Document Checker

Free tool: do you need one, which route, exactly which documents

How to Apply: Form W-7

The form line by line, the three routes, and the document rules

ITIN vs SSN

What each number lets you do — the honest comparison

From ITIN to SSN

The year your status changes and what happens to your filing history

Spouse & Dependents

Household cases, including dependents living abroad

Educational content — not tax, legal or immigration advice. This page explains published IRS rules in plain English. Whether the IRS issues you an ITIN is decided only by the IRS, based on your full application. An ITIN has no effect on immigration status, and nothing here is immigration advice — for that, speak to a licensed immigration attorney or a DOJ-accredited representative. Rules and processing times change; confirm current figures with the IRS before you act. Full disclaimer.