SSN, ITIN and your California licence
Some good news first: nothing on this page is hard. These are three boring government errands, and the order is the only trick. The SSN is your Social Security number, the nine-digit ID almost everything in America keys off. The ITIN is a tax-only number for a spouse who isn’t allowed to work. The licence comes from the DMV, California’s licence office. The order matters more than the speed, because the second and third errands queue behind the first. Pick your visa below and the page arranges itself around your household, and every form and agency here is decoded in the glossary at the bottom.
Your visa, and your spouse’s
Almost every decision below forks on two answers: which visa you’re on, and whether a spouse came with you. The spouse question is the one that catches people, and it has a phone number attached further down. Your picks here also set the what-to-bring list later on the page.
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What these three things actually are
The SSN. It is nine digits, issued by the Social Security office to anyone allowed to work here. It was invented to track retirement contributions, then drifted into being the closest thing America has to an Aadhaar number. Your employer needs it to pay you. Banks want it. Credit cards, phone contracts and the DMV all key off it. You get one number, and it is yours for life. There is a paper card, but the card barely matters. What matters is that the number exists in the system.
The ITIN. It is also nine digits, but issued by the IRS, the federal tax office, rather than by Social Security. It exists for people who owe US tax but aren’t allowed to work here. In practice, that means a spouse on a dependent visa. It lets you file a joint tax return, which usually saves a family real money. It gives no right to work. And you cannot hold both: if you’re eligible for an SSN, you’re barred from an ITIN.
The California licence. What it’s for is obvious. Why it’s urgent is less obvious, even if you plan to Uber everywhere. Car insurance here is priced off your local driving record, and having no licence makes insurance expensive or impossible. Getting stopped by police on a foreign licence after you’ve become a resident means a ticket. And the licence doubles as your everyday photo ID, which beats carrying your passport into a bar.
Why the order matters
California gives new residents 10 days to get a state licence. But your SSN takes about three weeks to arrive, and the DMV checks the number electronically with the Social Security office while you’re standing at the counter. The legal deadline and the working sequence contradict each other. Almost everyone breaks the 10-day rule.
That is worth knowing before you start, because chasing the 10-day mark is what makes people rush the SSN step and turn up at the DMV before their number is in the system, which fails the appointment. The appointment is the thing to protect. In the Bay Area you may have waited three weeks for it, and it only works if every document is in hand.
Everything depends on step 1. Form I-94 is your electronic arrival record: the government’s proof that you entered legally, and a statement of how long you can stay. The Social Security office, the DMV and USCIS (the agency that handles visa petitions) all check the current one, not the one from your first landing. Get it at i94.cbp.dhs.gov under “Get Most Recent I-94”, save the PDF, and do it again after every trip to India.
Getting the SSN
Anyone with permission to work qualifies: O-1, H-1B, L-1, E-2, and F-1 students with valid work authorisation. Spouses are where it gets confusing, so here are the three cases.
The California licence
California has no licence-exchange agreement with any country, India included. The DMV treats a foreign licence holder like an out-of-state driver plus a driving test, so you sit both the written test and the driving test, no matter how many years you’ve been driving in Bangalore.
Your Indian licence plus an International Driving Permit covers you as a visitor. It stops covering you once you’re a resident. An International Driving Permit is only a translation of your Indian licence, never a licence in itself.
Start the DL 44 application online (that’s the DMV’s licence application form), book an appointment, and read the California Driver’s Handbook. Independent trackers put the statewide average appointment wait around two weeks, with San Jose and other busy metro offices running 20 to 30 days. Each office page posts its own current estimate, so check two or three before you settle. A 40-minute drive to a quieter office can save a fortnight.
Ask for the REAL ID version of the licence, the one marked with a bear and a star. Since May 2025 it’s what boards a domestic flight if you’re not carrying a passport. Visa holders are explicitly eligible. Yours will be a limited-term card: it expires when your permitted stay does, rather than running the standard five years. Extend your visa and you get a new card with the new date.
The written test, which the DMV calls the knowledge test, happens at a testing station during the same appointment. There’s no separate booking. The DMV says the pass mark is 80% and doesn’t publish the question count for adult applicants. Test-prep sites consistently report 36 questions with 30 needed, which works out to 83%. Either way, you can afford to miss six. Start it before 4:30pm or you’ll be sent back another day. People do fail it, usually because they assumed twenty years of driving substitutes for reading the handbook, so give the handbook a proper evening.
The driving test is a separate appointment. Book it the day you get the permit. It comes in two parts. First is a pre-drive safety check, where the examiner confirms you can work your own car’s indicators, wipers and hazard lights, and that the car is roadworthy. Then come 20 to 30 minutes of driving with the examiner scoring you. You bring the car, registered and insured to at least California’s minimums: $30,000 for injury to one person, $60,000 for more than one, and $15,000 for property damage. A friend’s car or a driving school car both work. A rental usually doesn’t. That’s not because the DMV bans rentals, but because rental agreements generally don’t cover an unlicensed driver taking a test, and the examiner will ask for the registration document.
Where experienced drivers fail it:
Spend an hour with a local driving instructor the week before. They teach the examiner’s checklist rather than driving, and you need someone in the passenger seat anyway. Pass, and you get a paper temporary licence valid for 60 days. The plastic card arrives in three to four weeks.
The ITIN comes at tax time
An ITIN is for people who owe US tax but can’t get an SSN. That usually means a spouse on an O-3 or H-4 without work authorisation. If your spouse is eligible for an SSN, they cannot have an ITIN. The two are mutually exclusive.
You can’t apply whenever you like. The W-7, the ITIN application form, has to travel attached to a tax return unless you meet one of a few narrow exceptions. So the first realistic window is your first US tax filing, the April after your first year here. The IRS asks for 7 weeks, or 9 to 11 between 15 January and 30 April, when everyone files at once. File early in that window rather than on 14 April.
If your spouse can’t get an SSN
California law says that if you’re legally in the US but not eligible for an SSN, the DMV’s SSN requirement doesn’t apply to you. The DMV checks that eligibility electronically with the Social Security office while you’re standing there. The problem, in the DMV’s own words: spouses and dependents on visa types like E-1, E-2, L-1 and L-2 may not be eligible for an SSN, but the system’s answer can still read “SSN required”, because it doesn’t distinguish the main visa holder from the dependent.
When that happens, the application has not been rejected. It goes to the DMV’s Issuance Unit in Sacramento for a manual second look at the immigration documents, which takes roughly two weeks. Nobody at the counter will explain this, and the natural reaction is to assume you failed and start over.
What to do now
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Good to know
The glossary
Every term on this page, decoded once.
Sources · checked Jul 2026
This is general information, not legal or tax advice. Check with a professional before acting.