What a green card is and the main paths to get one
A green card is a document that lets you live and work permanently in the United States without being a citizen. The card itself is a physical ID issued by U.S. Citizenship and Immigration Services (USCIS). To get one, you must go through one of several legal pathways — there is no single process that works for everyone.
The main routes are: family sponsorship (a U.S. citizen or permanent resident relative petitions for you), employment sponsorship (your employer petitions for you), diversity visa lottery, refugee or asylee status, and a few smaller categories like special immigrant status. Each has different requirements, timelines, and forms. Most people use family or employment sponsorship because those pathways are the most established.
The process typically takes months to years depending on your category and country of origin. Some categories have annual caps on how many green cards are issued, which creates waiting lists. You will need to show that you have a job offer or family member willing to sponsor you, prove you are not a security risk, and pass a medical exam.
Key Takeaways
- A green card is issued by USCIS and lets you live and work permanently in the US without citizenship.
- The most common routes are family sponsorship (a relative petitions for you) or employment sponsorship (your employer petitions for you).
- You cannot petition for yourself — someone else (a family member or employer) must file the petition on your behalf.
- The process involves multiple steps: a petition is filed, you are interviewed by USCIS, you pass a medical exam and background check, and then the green card is issued.
- Timelines vary from under a year to several years depending on your category and which country you are from.
Family sponsorship: who can petition for you
If you have a close relative who is a U.S. citizen or permanent resident, they can petition for you. A U.S. citizen can sponsor a spouse, parent, child, or sibling. A permanent resident can sponsor a spouse or child only. The relative must file Form I-130 (Petition for Alien Relative) with USCIS and prove they have enough income to support you so you do not become a burden on the government.
The income requirement is called the Affidavit of Support (Form I-864). Your sponsor must show they earn at least 125 percent of the federal poverty line for their household size — the exact amount depends on how many people they support. If they do not earn enough, they can find a co-sponsor (usually another family member) who will sign the form alongside them.
After the petition is approved, you will be placed in a queue for an interview. If you are already in the US, you may be able to adjust status without leaving the country. If you are outside the US, you will go through consular processing, which means you will interview at a U.S. embassy or consulate in your home country. The timeline for family sponsorship ranges from one to ten years depending on your relationship to the sponsor and your country of origin.
Employment sponsorship: how your employer petitions for you
Your employer can petition for you if they want to hire you for a permanent position. The employer files Form I-140 (Immigrant Petition for Alien Worker) with USCIS. Most employment-based green cards require the employer to first conduct a labor certification process, which means they must advertise the job to U.S. workers and show that they cannot find a may have access to American for the role. This step alone can take six months to two years.
There are five employment-based categories, and they have different requirements. The first category is for people with extraordinary ability in science, arts, education, business, or athletics — you do not need a job offer for this one. The second and third categories are for professionals with advanced degrees or skilled workers, and they require labor certification. The fourth category is for special immigrants (religious workers, diplomats, and others). The fifth category is for investors who will create at least ten jobs.
Employment-based green cards often move faster than family sponsorship — sometimes one to three years — but the labor certification step can add significant time. Your employer must be willing to sponsor you, which means they are committing to the process and paying filing fees. You cannot petition for yourself; your employer must initiate the process.
Diversity visa lottery and other pathways
The diversity visa lottery is a program that randomly selects people from countries with low immigration rates to the US. Each year, roughly 50,000 green cards are made available through the lottery. You enter by submitting an online form during the registration period (usually in October), and winners are selected by computer. If you win, you then go through the standard interview and medical exam process.
Refugee and asylee status are separate pathways. If you are fleeing persecution in your home country based on race, religion, nationality, political opinion, or membership in a social group, you may be able to seek protection. Refugees explore from outside the US; asylees explore from within the US or at a port of entry. After one year as a refugee or asylee, you can explore for a green card. This pathway does not require a sponsor.
Other smaller categories exist for victims of human trafficking, victims of certain crimes (T and U visas), and special immigrants such as religious workers or former employees of the U.S. government. Each has its own requirements and forms. If none of the main pathways fit your situation, you may fall into one of these categories — an immigration attorney can help you determine which route is possible for you.
The green card interview and medical exam
Once your petition is approved, you will be called for an interview with a USCIS officer. The officer will ask you questions about your background, your relationship to your sponsor (if applicable), your work history, and your intentions in the US. They will also verify that the information in your petition is accurate. Bring your passport, birth certificate, marriage certificate (if applicable), police clearance from your home country, and any other documents requested by USCIS.
Before or after your interview, you must pass a medical exam conducted by a USCIS-approved civil surgeon. The exam includes a physical, blood tests, and a chest X-ray. You will be screened for communicable diseases and certain health conditions. Most people pass the exam without issue. If you have a health condition, the doctor will report it, but it does not automatically disqualify you — USCIS will review the report and make a decision.
You will also undergo a background check. USCIS will check your criminal history, immigration history, and security records. If you have a criminal conviction, certain immigration violations, or security concerns, you may be denied. If everything clears, USCIS will approve your green card and you will receive it by mail within a few weeks.
Timeline expectations and what happens while you wait
The timeline for a green card depends on your category and your country of origin. Family sponsorship for when ready relatives of U.S. citizens (spouse, parent, child under 21) typically takes one to two years. Family sponsorship for other relatives can take five to ten years or longer because there are annual caps and a waiting list. Employment-based green cards usually take one to three years, but labor certification can add time.
While your petition is pending, you can remain in the US on your current visa status if you are already here. Some visa types allow you to work while waiting; others do not. If you are outside the US, you must wait for your petition to be approved before you can move forward with the interview process. You cannot work in the US until your green card is issued, unless you are on a work visa.
If your petition is denied, you will receive a notice explaining why. You may be able to appeal or resubmit with additional evidence. An immigration attorney can review your case and advise you on next steps. Do not ignore a denial notice — you have a limited time to respond.
Documents you will need to gather
The exact documents depend on your category, but most people need: a valid passport, birth certificate, marriage certificate (if applicable), divorce decrees (if applicable), police clearance from every country where you have lived for more than six months, medical exam results from a USCIS-approved doctor, and proof of your relationship to your sponsor (if family-based) or your job offer (if employment-based).
You will also need financial documents. If you are being sponsored, your sponsor must provide tax returns, pay stubs, and bank statements to prove they can support you. If you are employment-based, your employer must provide evidence of the job offer and your qualifications. Some documents must be translated into English by a certified translator if they are in another language.
Start gathering documents early — some take time to obtain, especially police clearances from foreign countries. Keep copies of everything you submit. USCIS will tell you which specific documents they need for your category, so check the forms and instructions carefully.
When to consider hiring an immigration attorney
An immigration attorney can help you understand which pathway is best for your situation, prepare your petition, gather documents, and represent you at your interview. Immigration law is complex and mistakes on forms can delay your case or result in denial. If your situation is complicated — for example, you have a criminal history, prior immigration violations, or you are explore under a less common category — an attorney is worth the cost.
You can also contact a nonprofit immigration legal services organization, which often charges less than a private attorney or provides services for free based on income. The Executive Office for Immigration Review maintains a list of accredited representatives and organizations. If you cannot afford an attorney, search for "immigration legal services" plus your city name to find nonprofits in your area.
Frequently Asked Questions
Can I explore for a green card on my own, or do I need someone to sponsor me?
You cannot petition for yourself. Someone else must file the petition — either a family member (if you are may be able to access for family sponsorship) or your employer (if you are may be able to access for employment sponsorship). The exceptions are the diversity visa lottery, refugee status, and a few special categories, where you can explore directly.
How long does it take to get a green card?
It depends on your category and country of origin. when ready relatives of U.S. citizens typically wait one to two years. Other family categories can wait five to ten years or longer. Employment-based green cards usually take one to three years. The diversity visa lottery takes about one year if you win.
Can I work in the US while my green card petition is pending?
It depends on your current visa status. If you are on an H-1B, L-1, or O-1 visa, you can usually work while waiting. If you are on a tourist visa (B-2) or student visa (F-1), you cannot work unless you are on an authorized work visa. Ask USCIS or your immigration attorney whether your visa allows work during the pending period.
What happens if my green card petition is denied?
You will receive a notice explaining the reason for denial. You may be able to appeal or resubmit with additional evidence. The important date to appeal is usually 30 days from the denial notice. An immigration attorney can review the denial and advise you on whether an appeal is worth pursuing.
Do I need to be in the US to explore for a green card?
No. You can explore from outside the US through consular processing at a U.S. embassy or consulate in your home country. If you are already in the US on a valid visa, you may be able to adjust status without leaving the country, which is often faster. Ask USCIS which option applies to you.