Immigration offenses in federal law cover everything from quietly overstaying a tourist visa to smuggling people across the border for profit. Some are civil violations that trigger removal and reentry bars; others are federal crimes carrying years or decades in prison. The category an act falls into decides whether a person faces a fine, deportation, prosecution, or all three, and the same underlying conduct can produce very different outcomes depending on prior history and intent.
Illegal Entry and Reentry
Entering the country anywhere other than an official port of entry, dodging inspection, or lying to get through is a federal misdemeanor under 8 U.S.C. § 1325. A first offense carries up to six months in prison, a fine, or both. A second or subsequent violation jumps to a maximum of two years.1Office of the Law Revision Counsel. 8 USC 1325 – Improper Entry by Alien
Coming back after a prior deportation is treated far more harshly. Under 8 U.S.C. § 1326, illegal reentry carries a base penalty of up to two years, but the sentence climbs with criminal history:
- Up to 10 years if the person was previously removed after conviction for three or more drug or violent misdemeanors, or a non-aggravated felony.
- Up to 20 years if the prior removal followed an aggravated felony conviction.
- A mandatory consecutive 10 years if the prior removal was on national security or terrorism grounds.
Anyone who has been deported must get express permission from the Attorney General before returning. Simply being found inside the country after removal completes the offense.2Office of the Law Revision Counsel. 8 USC 1326 – Reentry of Removed Aliens
Not every unauthorized entrant gets a hearing. Under 8 U.S.C. § 1225, immigration officers can order someone removed on the spot if the person arrived without valid entry documents or used fraud. These expedited removal orders carry no right to administrative appeal in most cases, with one key exception: a person who expresses fear of persecution or an intent to apply for asylum must be referred for a credible fear interview rather than removed immediately.3Office of the Law Revision Counsel. 8 USC 1225 – Inspection by Immigration Officers; Expedited Removal of Inadmissible Arriving Aliens; Referral for Hearing In practice, expedited removal has been applied to people arriving at ports of entry, people who entered by sea and have been in the country less than two years, and people apprehended within 100 miles of the border within 14 days of entry.4Congress.gov. Expedited Removal of Aliens: An Introduction
Visa Overstays and Unlawful Presence
Entering legally and staying past your authorized date is not a crime. It is a civil violation that triggers removal proceedings. Your authorized stay appears on the Form I-94 Arrival/Departure Record, which CBP now issues electronically in most cases.5U.S. Customs and Border Protection. Arrival/Departure Forms: I-94 and I-94W Remaining even one day past that date voids the visa itself under INA Section 222(g), so you generally cannot use it to reenter and must apply for a new one from your home country.
Overstaying is different from falling out of status. You can lose status by violating the conditions of your visa (a student dropping below a full course load, a tourist taking a job) while your I-94 date is still in the future. Being out of status does not automatically mean you are accruing unlawful presence, but it does put you at risk of removal.6U.S. Citizenship and Immigration Services. Unlawful Presence and Inadmissibility Students admitted for “duration of status” begin accruing unlawful presence the day after an immigration judge or USCIS formally determines their status has ended.
The real cost of an overstay lands when you try to come back. Under 8 U.S.C. § 1182(a)(9)(B), reentry bars apply even if you leave voluntarily:
- More than 180 days but less than one year of unlawful presence, followed by departure before removal proceedings: a three-year bar on readmission.
- One year or more of unlawful presence, followed by departure or removal: a ten-year bar.
- More than one year of unlawful presence total, followed by a departure or removal and then a reentry or attempted reentry without authorization: a permanent bar. Reapplication is possible only after staying outside the country at least ten years.
These bars apply to unlawful presence accrued on or after April 1, 1997.7Office of the Law Revision Counsel. 8 USC 1182 – Inadmissible Aliens Certain groups do not accrue unlawful presence at all, including minors under 18, people with pending asylum applications, and victims of severe trafficking.6U.S. Citizenship and Immigration Services. Unlawful Presence and Inadmissibility
Smuggling, Harboring, and Transporting
Helping someone cross the border illegally, hiding them from authorities, or driving them deeper into the country are all federal crimes under 8 U.S.C. § 1324. Smuggling means bringing or attempting to bring someone in at a place other than an official port of entry, regardless of whether money changes hands. If the smuggling is done for profit, the penalty reaches up to ten years per person. If anyone dies as a result of the operation, the penalty escalates to life in prison or the death penalty.8Office of the Law Revision Counsel. 8 USC 1324 – Bringing in and Harboring Certain Aliens
Harboring and transporting apply after someone is already inside the country. Harboring means hiding a person from detection anywhere, in a home, warehouse, or vehicle. Transporting means moving them within the country to help them avoid detection. Both require that the person doing it knows or recklessly ignores the fact that the individual is in the country illegally.
Federal agents can seize any vehicle, vessel, or other property used to commit smuggling, harboring, or transporting. CBP and ICE both have authority to seize and forfeit property connected to the unlawful movement of people.9eCFR. 8 CFR 274.1 – Seizure and Forfeiture Authority Lending your truck to someone who uses it to transport unauthorized individuals can cost you the vehicle even if you were not directly involved.
Document Fraud and Marriage Fraud
Using forged, altered, or stolen immigration documents is a federal crime under 18 U.S.C. § 1546. The penalty depends on what the fraud was connected to:
- Up to 10 years for a first or second offense with no connection to terrorism or drug trafficking.
- Up to 15 years for a third or subsequent standalone offense.
- Up to 20 years if the fraud facilitated a drug trafficking crime.
- Up to 25 years if the fraud facilitated international terrorism.
A separate, lesser provision covers using a false document or someone else’s identification to satisfy employment verification. That offense carries up to five years.10Office of the Law Revision Counsel. 18 USC 1546 – Fraud and Misuse of Visas, Permits, and Other Documents
When the fraud involves another real person’s identity, prosecutors frequently add aggravated identity theft under 18 U.S.C. § 1028A. This carries a mandatory two years on top of the underlying sentence, cannot run concurrently, and cannot be served on probation.11Office of the Law Revision Counsel. 18 US Code 1028A – Aggravated Identity Theft That add-on is what turns a manageable document case into a long sentence.
Marriage fraud, entering a marriage to evade immigration law, is a crime under 8 U.S.C. § 1325(c), punishable by up to five years and fines up to $250,000. Both spouses can be charged.1Office of the Law Revision Counsel. 8 USC 1325 – Improper Entry by Alien Beyond the criminal exposure, a finding of marriage fraud under INA Section 204(c) creates a permanent bar on any future visa petition, even if no immigration benefit was ever received. The administrative standard, “substantial and probative evidence” that the marriage was more probably fraudulent than not, is lower than the criminal standard.12U.S. Department of Justice. Marriage Fraud – Matter of P. Singh, 27 I&N Dec. 598 That permanent bar is what people most often overlook: even if criminal charges are dropped, the administrative finding alone can end any future path to a green card.
Criminal Convictions That Trigger Deportation
Lawfully present non-citizens, including green card holders, can be deported for certain criminal convictions. Under 8 U.S.C. § 1227, a non-citizen is deportable after conviction of:
- A crime of moral turpitude committed within five years of admission, if the potential sentence is one year or longer. A second moral turpitude conviction at any time after admission also triggers deportation, with no sentence threshold.
- Any controlled substance offense other than a single instance of possessing 30 grams or less of marijuana for personal use.
- Any firearms offense involving the purchase, sale, possession, or use of a firearm or destructive device.
- Any aggravated felony committed at any time after admission.
Only the first moral turpitude ground has a time-in-country limit.13Office of the Law Revision Counsel. 8 USC 1227 – Deportable Aliens
The term “aggravated felony” in immigration law is misleading because it includes offenses that are neither aggravated nor felonies under state criminal law. Federal immigration law defines the term broadly under 8 U.S.C. § 1101(a)(43), reaching murder, rape, sexual abuse of a minor, drug trafficking, firearms or explosives trafficking, money laundering above $10,000, theft or burglary with a sentence of at least one year, fraud with losses above $10,000, tax evasion with revenue losses above $10,000, and violent crimes with a sentence of at least one year.14Office of the Law Revision Counsel. 8 USC 1101 – Definitions An aggravated felony conviction makes a non-citizen deportable, bars most forms of relief from removal, and triggers the 20-year maximum for illegal reentry. A presidential or gubernatorial full and unconditional pardon can eliminate deportability for certain criminal grounds, but that is an extraordinarily rare outcome.
Employer Violations
Every employer is required to verify that each new hire is authorized to work. Under 8 U.S.C. § 1324a, knowingly hiring an unauthorized worker is illegal, and so is continuing to employ someone after learning they lack work authorization.15Office of the Law Revision Counsel. 8 USC 1324a – Unlawful Employment of Aliens Verification runs through the Form I-9, which requires examining identity and work authorization documents for every new employee.
Civil fines are adjusted annually for inflation. Penalties per unauthorized worker range from several hundred dollars for a first offense to over $20,000 for repeat violators, with current amounts published each year in the Federal Register.16U.S. Immigration and Customs Enforcement. Form I-9 Inspection Under Immigration and Nationality Act 274A Employers who show a pattern of violations can face criminal prosecution.
Even when every employee is legally authorized, failing to properly complete or retain Form I-9 paperwork is itself a violation. Missing signatures, wrong dates, and failing to examine original documents all count as substantive errors, and a single audit of a large employer can produce penalties running into the hundreds of thousands of dollars if forms are consistently defective.
Detention and Bond After an Immigration Arrest
Federal law gives the government broad authority to hold someone arrested for an immigration offense. Under 8 U.S.C. § 1226, an immigration judge can release a detained person on bond, with a statutory minimum of $1,500.17Office of the Law Revision Counsel. 8 USC 1226 – Apprehension and Detention of Aliens In practice, bonds commonly run much higher, and certain categories, particularly people with aggravated felony convictions or terrorism-related charges, face mandatory detention with no bond option.
Asylum seekers who pass a credible fear interview may be eligible for release on bond or parole while their case is pending. Asylum applications must generally be filed within one year of the applicant’s last arrival, with exceptions for changed country conditions, serious illness, or other extraordinary circumstances.18eCFR. 8 CFR 208.4 – Filing the Application