Starting a new job in the United States involves several important steps, including completing employment verification, arranging payroll details, and obtaining a Social Security number (SSN) if you do not already have one. An SSN helps employers report your earnings and is commonly used for tax and Social Security records.
If you are a new employee and have not received your SSN yet, you may still be able to begin work if you are legally authorised to work and meet the applicable employment verification requirements. However, you should apply for your number promptly and follow your employer’s instructions.
This guide explains how to get a US Social Security number after starting a job in 2027, including eligibility, documents, application steps, processing times, and common mistakes.
What Is a Social Security Number?
A Social Security number is a unique nine-digit number issued by the Social Security Administration (SSA). It is used to record earnings, administer Social Security benefits, and support certain tax and government processes.
Employers generally need your SSN to report your wages to the government. You may also need it for tax returns and other financial or administrative tasks.
However, an SSN is not a work permit. Having a number does not automatically give someone permission to work in the United States. Noncitizens generally need appropriate employment authorisation to qualify for a work-related SSN.
Can You Start Working Before Receiving Your SSN?
In many cases, yes. If you are legally authorised to work, you may be able to start your job while your SSN application is pending.
Federal employment verification rules generally require employers to complete Form I-9 within the applicable deadline. An SSN is not itself a required document for completing Form I-9.
However, if your employer uses E-Verify, an SSN is required for the E-Verify process. The employer should follow the applicable procedures while you wait for your number rather than assuming you must automatically delay employment.
Your work authorisation must be valid independently of your SSN application. If you are an international student, temporary worker, or another noncitizen, check the conditions attached to your immigration status before beginning work.
Who Is Eligible to Apply?
US citizens can apply for an SSN if they do not already have one. Certain noncitizens may also qualify, generally when they have permission to work from the Department of Homeland Security (DHS).
Eligibility may include people with qualifying employment authorisation, lawful permanent residents, and some international students who meet the relevant work requirements.
If you are in the United States on a temporary visa, your eligibility depends on your immigration category and employment authorisation. A job offer alone does not necessarily make you eligible for an SSN.
If you cannot qualify for an SSN but need a taxpayer identification number for an eligible tax purpose, you may need to investigate whether an Individual Taxpayer Identification Number (ITIN) is appropriate. An ITIN does not authorise employment.
Step-by-Step Process to Get Your SSN
Step 1: Confirm Whether You Already Have an SSN
Before submitting a new application, check your existing records. You may have received an SSN during an earlier period of employment, through an immigration application, or as part of another eligible process.
The SSA generally assigns one SSN to a person for life. If you already have a number but have lost your card, you may need a replacement card rather than a new number.
Step 2: Check Whether You Requested an SSN Through USCIS
Some applicants can request an SSN while applying for employment authorisation or lawful permanent residence.
For example, if you requested an SSN through an eligible Form I-765 or Form I-485 application, USCIS may transmit the information needed for SSA to issue your card.
If you selected this option, check whether your SSN request is already being processed before submitting another application.
If you did not request a number through the immigration process, you can generally apply directly through the SSA once you meet the eligibility requirements.
Step 3: Prepare Your Documents
You must provide documents that establish your identity, age, and immigration or citizenship status, as applicable.
Depending on your circumstances, documents may include:
- A valid passport
- An Employment Authorization Document (EAD), if applicable
- An I-94 arrival record or qualifying admission stamp
- An immigration document showing lawful permanent resident status
- A birth certificate or other acceptable proof of age
- Additional documents required for your immigration category
International students may need documents such as Form I-20 or Form DS-2019, depending on their status and work arrangement.
The SSA generally requires original documents or copies certified by the issuing agency. Ordinary photocopies and notarised copies are not accepted as substitutes for the required evidence.
Check the official document requirements before visiting an office.
Step 4: Start Your Application Online
Use the official Social Security Administration website to begin the application process. The online service will guide you through the available options and explain whether you can complete the process online or need an appointment.
For many first-time applicants, an in-person visit is still required to verify documents. Follow the instructions provided after submitting the online application.
Step 5: Visit the Appropriate SSA Office if Required
If you need an appointment, bring the required original or certified documents. Make sure your information matches your immigration records and employment documentation.
Answer questions accurately and explain if you recently started work and are waiting for your SSN.
Keep any application confirmation or appointment information. If the SSA needs additional evidence, provide it promptly.
Step 6: Receive Your Social Security Card
Once your application is approved and the SSA has verified the necessary information, your card will generally be mailed to the address you provided.
Processing times vary. Some applicants receive their cards within approximately 5 to 10 business days after approval, while cases requiring additional immigration verification can take longer.
Make sure your mailing address is accurate and that you can receive mail there. If the card does not arrive within the expected timeframe, contact the SSA for guidance.
How Much Does an SSN Application Cost?
The Social Security Administration does not charge a fee to assign an SSN or issue a Social Security card.
Be cautious of websites or individuals asking you to pay an application fee for the number itself. You may have separate expenses for document translation or travel, but these are not SSA application charges.
Always use official government services to begin your application and verify document requirements.
What Should You Tell Your Employer While Waiting?
Inform your employer that you have applied for an SSN or are preparing to apply. Ask the payroll or human resources team what information they need while your application is pending.
Provide accurate information and keep your application records. Do not invent a number, use another person’s SSN, or provide an ITIN as if it were an SSN.
Your employer should follow the relevant payroll, Form I-9, and E-Verify procedures. If you are unsure about your work authorisation, speak with your employer’s immigration representative or a qualified immigration attorney.
For more information about employment eligibility documentation, read this guide to Form I-9 acceptable documents in the USA for 2027.
Common Mistakes to Avoid
One common mistake is assuming that a job offer automatically qualifies a noncitizen for an SSN. Another is applying for a new number when a replacement card is all that is needed.
Avoid submitting expired or unacceptable documents, entering inconsistent personal information, or missing an appointment. Protect your SSN and share it only when required for a legitimate purpose.
It is also important to understand your employment terms and confirm that your work authorisation matches the position. This guide to evaluating a job offer beyond salary in 2027 can help you assess important details before accepting or continuing a role.
When you are ready to explore suitable job opportunities, visit Apply Now.
Final Thoughts
Getting a US Social Security number after starting a job is often straightforward if you meet the eligibility requirements and prepare the correct documents. Start by checking whether you already have a number or requested one through USCIS, then follow the SSA’s application instructions.
Remember that an SSN is used for earnings and tax records, but it does not replace work authorisation. By applying promptly, keeping your employer informed, and protecting your personal information, you can manage this important employment step with greater confidence.