An alias name is any name a person uses other than their legal name, and under American common law you’re generally free to adopt one as long as you aren’t using it to deceive, defraud, or escape a legal obligation. Writers publish under pen names, performers work under stage names, and sole proprietors operate under trade names every day without filing anything in court. The line between a lawful alias and a criminal one comes down to intent.
The Common Law Right to Use a Different Name
American law inherited a straightforward principle from English common law: you can call yourself whatever you want without a court order or any paperwork. State courts have upheld this right for well over a century. The qualifications are simple. You adopt the name openly, you use it consistently, and your purpose isn’t to cheat someone or dodge a legal duty. Within those limits, you can use the name in daily life, sign contracts with it, and conduct business under it.
That is why a novelist writing as “Mark Twain” instead of Samuel Clemens, or a performer billed as “Lady Gaga” instead of Stefani Germanotta, isn’t doing anything unusual in legal terms. No judge has to approve the choice. Honesty of purpose is the only real requirement.
Common Forms an Alias Takes
Pen Names and Stage Names
Authors, artists, and performers routinely adopt professional aliases. A pen name lets a writer publish without revealing their identity. A stage name helps a performer build a recognizable brand. These names appear in contracts, on published work, and in marketing. The person’s true identity is usually known to a publisher, agent, or label, even when the public only knows the alias.
The U.S. Copyright Office will register a work under a pseudonym and allows the author to keep their real name off the public record entirely.1U.S. Copyright Office. Circular 32 – Pseudonyms
“Doing Business As” Names
A DBA, also called a fictitious name or trade name, is the business version of an alias. A sole proprietor named Jane Smith who wants to operate as “Sunrise Consulting” registers a DBA with her state or local government. That registration creates a public record linking the business name to the actual owner so customers and creditors know who stands behind it. Most states require this filing for any sole proprietorship or partnership operating under a name other than the owner’s legal name.
“Also Known As” Designations
In court filings and police records, you’ll often see “AKA” (also known as) connecting a legal name to any aliases. The notation ties records together when a person has gone by more than one name. If someone was arrested under one name but has prior records under another, the AKA entry keeps those records linked.
Where Your Legal Name Is Still Required
An alias works in a lot of settings, but several institutions require your legal name no matter what you call yourself in daily life.
Taxes
The IRS doesn’t care what your clients call you, but it requires your legal name and taxpayer identification number on tax documents. On Form W-9, which clients use to collect your tax information, Line 1 must show your legal name exactly as it appears on your tax return. The alias or DBA goes on Line 2.2Internal Revenue Service. Form W-9 (Rev. March 2024)
The same principle governs the return itself. Every name on it must match Social Security Administration records. If you’ve been using an alias professionally but never changed your legal name, your filings still go under the name the SSA has on file. Mismatches delay refunds and cause processing errors.3USAGov. How to Change Your Name and What Government Agencies to Notify
Bank Accounts
Federal anti-money-laundering rules don’t leave much room for aliases at the bank. Under the Customer Identification Program, every bank must collect your legal name, date of birth, address, and taxpayer identification number before opening an account. For U.S. persons, the taxpayer ID is your Social Security number.4eCFR. 31 CFR 1020.220 – Customer Identification Program You can open a business account under a DBA, but the bank still verifies the identity of the person behind it.
Government IDs
Passports are generally issued in your full legal name. Federal regulations recognize five ways a name change can be reflected on a passport, including court order, marriage, and divorce.5eCFR. 22 CFR 51.25 – Name of Applicant to Be Used in Passport Driver’s licenses and state IDs follow state-specific rules, but virtually all require proof of legal identity. You can’t walk into a DMV and request an ID in an alias. If you want your everyday name on your government ID, the practical path is a formal name change.
When an Alias Becomes a Crime
The right to use an alias has a hard limit: fraud. The moment you use a false name to deceive someone for financial gain, evade law enforcement, or steal someone else’s identity, you’ve crossed into criminal territory.
Federal Identity Fraud
Federal law makes it a crime to produce or use a false identification document, or to use another person’s identifying information in connection with any federal offense or state felony.6Office of the Law Revision Counsel. 18 US Code 1028 – Fraud and Related Activity in Connection With Identification Documents That covers fake IDs, use of someone else’s Social Security number, and fraudulent documents presented to a government agency. Going by “Mike” instead of “Michael” at work is not what the statute targets. The key element is intent to commit an unlawful act or to defraud.
Using another person’s identity while committing a felony brings an additional mandatory two-year prison sentence on top of whatever the underlying crime carries, rising to five years if the crime is terrorism-related.7Office of the Law Revision Counsel. 18 USC 1028A – Aggravated Identity Theft
Immigration Fraud
Using an alias on immigration documents carries especially severe penalties. Federal law makes it a crime to appear under an assumed or fictitious name on a visa application or in the immigration process without disclosing your true identity. Penalties reach up to 10 years in prison for a first offense and climb to 25 years if the fraud is tied to international terrorism.8Office of the Law Revision Counsel. 18 USC 1546 – Fraud and Misuse of Visas, Permits, and Other Documents
Everyday Fraud and Forgery
You don’t need to forge a government document to get in trouble. Using a fake name to open credit accounts, sign contracts you intend to default on, or collect benefits you aren’t entitled to can bring state fraud or forgery charges. Signing someone else’s name on a check, using an alias to evade a lawsuit, or giving police a false name during an investigation are all situations where alias use turns criminal. The common thread is deception with a concrete harmful purpose.
Aliases and Background Checks
If you’ve ever used an alias, there’s a good chance it will surface during a background check. Most professional screening services run what’s called an SSN trace, which pulls every name ever associated with your Social Security number. Former legal names, maiden names, and names used on prior financial accounts can all appear. The screening company then searches court records under each of those names for criminal history, civil judgments, and other filings.
This matters for job seekers. If you were involved in a legal matter under a different name and only list your current name on an application, that record might not show up in an initial search. It often does once the alias list is generated from your SSN. Trying to hide a record by omitting a former name is a risky strategy that frequently backfires.
Alias Versus Legal Name Change
An alias sits alongside your legal name. A legal name change replaces it. The two processes have different consequences.
With an alias, your government-issued documents stay the same. Your birth certificate, Social Security card, passport, and driver’s license all continue to show your legal name. You simply use a different name in certain contexts. No court approval is needed and no official records change.
A legal name change is a court proceeding. In most states, you file a petition and a judge signs an order approving the new name. After that, you update your records with the Social Security Administration, the DMV, the State Department for your passport, your voter registration, and any other agency that has your name on file.3USAGov. How to Change Your Name and What Government Agencies to Notify The new name becomes your sole legal identity. Marriage and divorce can also trigger a name change without a separate court petition, depending on the state.
Which path makes sense depends on what you need. A freelance writer who wants to publish under a different name can rely on an alias. Someone who wants every piece of identification and every legal record to reflect a new name needs the formal court process. People sometimes start with an alias and later formalize it through a name change once the new name has become central to their identity.