Under federal law, a registered sex offender has three business days after moving to appear in person and update their registration with law enforcement. That is the answer to how long a sex offender has to register a new address at the federal level, but it is only a floor. Many states require notice within 24 to 48 hours, and the clock starts the day you move, so the deadline that actually applies to you depends on the jurisdiction you are moving into.
The Federal Three-Business-Day Rule
The Sex Offender Registration and Notification Act (SORNA) requires any registrant who changes residence to appear in person and update their registration within three business days.1eCFR. 28 CFR Part 72 – Sex Offender Registration and Notification The same three-day window covers changes to employment, school attendance, or your name. Business days means weekdays only, so weekends and federal holidays do not count. Move on a Friday, and the clock does not start until Monday.
This is the federal minimum. If your state gives you less time, the state rule controls in practice. If your state gives you more time, the federal three-day rule still applies independently, which means you could technically comply with state law and still violate federal law. Most states have adopted a three-day window or something shorter.
State Deadlines Vary From 24 Hours to Ten Days
The time each state allows to report a new address ranges from as little as 24 hours to as many as ten business days. Roughly a dozen states require reporting within one or two calendar days. Others mirror the federal three-business-day standard. A handful allow five or more days.
Some states count calendar days; others count business days. A three-day deadline in one place might mean 72 hours including the weekend, while in another it means three business days with weekends excluded. Getting this wrong by even one day can turn an otherwise compliant registrant into a felon. The only way to know your exact deadline is to check with the local registration authority in the jurisdiction you are moving into, before you move. When in doubt, treat the deadline as calendar days and report as quickly as possible.
What Counts as a Move
A change of address under SORNA is broader than most people assume. Moving across town triggers the requirement, but so does moving to a different unit in the same apartment complex, switching from one roommate’s home to another, or relocating to a shelter. Any change to where you actually sleep at night counts.1eCFR. 28 CFR Part 72 – Sex Offender Registration and Notification
Federal law also requires you to report temporary lodging when you stay somewhere other than your registered address for seven or more days. You must give the identity of the place and how long you plan to stay, within three business days.1eCFR. 28 CFR Part 72 – Sex Offender Registration and Notification Extended visits with family, long-term hotel stays during a job search, and stays at a halfway house all fall under this rule if they last a week or more.
Being homeless does not remove the obligation. If you lack a permanent residence, you must still provide whatever information you can about where you are staying, described with as much detail as circumstances allow.2Regulations.gov. Registration Requirements Under the Sex Offender Registration and Notification Act That may mean identifying a shelter, a park, a specific street corner, or any other location where you habitually sleep. Any shift from one such location to another is itself a reportable change.
Federal guidance also treats you as habitually living in a jurisdiction once you have been there more than 30 days, which triggers full registration in that jurisdiction even if you consider the stay temporary.3Office of Justice Programs. SORNA: Determination of Residence, Homeless Offenders and Transient Workers
How to Update Your Address
Updating your address is not something you can do by phone or email. SORNA requires you to appear in person at a designated law enforcement office, typically the local police department or county sheriff in the jurisdiction where you are moving.1eCFR. 28 CFR Part 72 – Sex Offender Registration and Notification Bring valid photo identification. In most jurisdictions a new photograph will be taken during the visit, and the statutory framework for periodic verification requires registrants to allow a current photograph.4Office of the Law Revision Counsel. 34 USC 20918 – Periodic In Person Verification
You should expect to supply more than just a street address:
- Full residential address, including any apartment or unit number, or a detailed description of your location if no street address exists.
- Name and contact information for the landlord or property owner.
- Employer name and address, or a description of where you work if you have no fixed workplace.
- Vehicle details: make, model, color, license plate, and VIN for any vehicle you own or regularly drive.
- Online identifiers such as email addresses, usernames, and screen names, depending on your jurisdiction’s requirements.
There is generally no fee for processing an address update.
Moving to Another State
An interstate move triggers a dual-reporting requirement that catches many registrants off guard. Before you leave your current state, you must notify your current jurisdiction that you are departing, tell them where you are going, and confirm that you will be starting residence in a new state.1eCFR. 28 CFR Part 72 – Sex Offender Registration and Notification This has to happen before you move, not on your way out.
Once you arrive, you must register in person with law enforcement in the new state within that state’s reporting deadline. If the new state allows three business days and you assumed you had a week, you have already missed it. Research the new state’s rules before you leave. Failing to register on either end of the move can produce separate violations in both jurisdictions.
Leaving the Country
International travel operates on a much longer clock. Registrants planning to leave the United States must provide at least 21 days’ advance notice to their registry jurisdiction before departing.5Office of Justice Programs. SORNA: Information Required for Notice of International Travel Missing that window can block your travel entirely.
There is a separate passport consequence. Under the International Megan’s Law, individuals convicted of sex offenses against minors are classified as covered sex offenders and must have an identifier printed inside their passport book stating that the bearer was convicted of a sex offense against a minor. Passport cards cannot be issued to covered sex offenders at all, and the government can revoke passports that were issued without this identifier.6U.S. Department of State. Passports and International Megan’s Law
Penalties for Missing the Deadline
Failing to update your address in time is a felony, not a paperwork issue. Under federal law, knowingly failing to register or update a registration as required by SORNA carries up to 10 years in prison, a fine, or both. If a registrant who fails to register also commits a violent crime, the penalty jumps to a mandatory minimum of five years and a maximum of 30.7Office of the Law Revision Counsel. 18 USC 2250 – Failure to Register
State penalties stack on top. Most states classify failure to register as a felony, which means a new conviction on your record and additional prison time. A new conviction can also trigger reclassification to a higher tier, extend your registration period, or increase how often you must report. A registrant who was on track to complete a 15-year obligation can end up starting that clock over with a new felony.
Prosecutors do not have to prove you intended to evade the law. They only need to show you knew about the registration requirement and failed to comply. Being busy, forgetting, or misunderstanding the rules is not a defense.
The Narrow Emergency Defense
Federal law recognizes one narrow escape valve. If you missed a deadline because of circumstances genuinely beyond your control, you can raise an affirmative defense in court. To succeed, you must show three things: that uncontrollable circumstances prevented you from complying, that you did not recklessly create those circumstances yourself, and that you registered as soon as the emergency ended.7Office of the Law Revision Counsel. 18 USC 2250 – Failure to Register
Hospitalization after an accident, a natural disaster that displaced you, or incarceration on an unrelated matter could qualify. Oversleeping, car trouble, or a busy work schedule almost certainly will not. Because this is an affirmative defense, you carry the burden of proving it, and it only helps at trial or sentencing. It does not prevent an arrest or charge. The safest approach is to register early whenever you know a move is coming, and to confirm the deadline in the destination jurisdiction before you leave the old one.