An affidavit of residency is a signed statement, made under penalty of perjury, declaring the address where you actually live. Government agencies use it to confirm your home address when you apply for a driver’s license, claim a property tax exemption, or establish which state is entitled to tax your income. A written declaration signed under penalty of perjury carries the same legal weight as a sworn oath under federal law, which is why the document is taken seriously and why lying on one is a crime.1Office of the Law Revision Counsel. United States Code Title 28 – 1746 Unsworn Declarations Under Penalty of Perjury
What Goes on the Form
The affidavit itself is short. You provide your full legal name exactly as it appears on your government-issued ID, your physical street address including any apartment or unit number, and the date you began living there. A post office box will not work. Agencies want the location where you sleep at night. Some versions also ask for the names of other people in the household, which helps the agency confirm the living arrangement.
You will almost always need to attach supporting documents. Common examples include a current lease, a recent utility bill (typically from the last 60 days), a voter registration card, or an insurance policy. Most agencies ask for at least two, and every document must show both your name and the exact address on the affidavit. If a document shows a slightly different address format or an old name, the agency will likely reject it.
Small errors trip people up more than outright fraud does. Writing the wrong county, transposing digits in your zip code, or listing a move-in date that conflicts with your lease can all get the affidavit sent back. When that happens, you start over, and in the meantime your license renewal or tax exemption sits in limbo.
When You Need a Residency Affidavit
Driver’s License and State ID
The REAL ID Act requires every state to verify your name and principal residence address before issuing a driver’s license or ID card that federal agencies will accept.2Department of Homeland Security. REAL ID Act of 2005 – Section 202 Minimum Document Requirements and Issuance Standards An affidavit fills that requirement when you do not have a lease, mortgage statement, or utility bill in your own name, which is a common situation for people living with relatives, renting informally, or recently relocated.
If you live in someone else’s home without a formal lease, most licensing agencies will accept a secondary affidavit from the homeowner or primary tenant. That person signs a statement confirming you live at the address, and they face the same perjury consequences if the statement is false. This is the standard path for college students living with family, adult children at a parent’s home, or anyone in an informal housing arrangement. The property owner typically must state how long you have been living there.
Getting this wrong has real consequences. An inaccurate address on your license can lead to suspension of driving privileges or denial of a renewal. Motor vehicle records feed into law enforcement databases and insurance systems, so agencies take address accuracy seriously.
Homestead and Property Tax Exemptions
Most states offer some form of homestead exemption that reduces the taxable value of a home you occupy as your primary residence. To claim one, you typically need to prove that the property is where you actually live, not an investment property or vacation home. A residency affidavit serves as that proof, often alongside a utility bill or voter registration. Some states also offer enhanced exemptions for seniors, veterans, or people with disabilities, and those programs almost always require a sworn statement confirming you have lived in the state continuously for a specified number of years.
Establishing Your Tax Domicile
If you earn income in more than one state, an affidavit helps establish your domicile, meaning the one place you consider your permanent home and intend to return to. Domicile determines which state taxes your worldwide income and which credits you can claim for taxes paid elsewhere. Without clear documentation, two states might both claim you as a resident and both try to tax your full income.
Revenue departments look at where you vote, where your license is issued, where your spouse and children live, and where you keep your most valuable personal belongings. A sworn affidavit pulls those threads together into a single documented claim. Seasonal workers and remote employees are especially vulnerable to residency disputes, and filing an affidavit with your domicile state’s revenue department before a conflict arises is far cheaper than resolving a dual-residency audit after the fact.
Many states also treat you as a resident for licensing purposes once you have been physically present for a set period, commonly around 183 days in a calendar year. The specific threshold and its consequences vary by state.
Signing: Notarized or Not?
A common misconception is that every residency affidavit must be notarized. In practice, many states accept a signed declaration made under penalty of perjury without notarization. Federal law explicitly allows unsworn written declarations, signed and dated with a penalty-of-perjury statement, to carry the same weight as a notarized affidavit in most contexts.1Office of the Law Revision Counsel. United States Code Title 28 – 1746 Unsworn Declarations Under Penalty of Perjury Check the specific form your agency provides. If it includes a notarization block, you need a notary. If it only asks for your signature and a perjury acknowledgment, you do not.
When notarization is required, you bring a valid government-issued photo ID to a notary public who verifies your identity, watches you sign, and applies their seal. Notary fees are set by state law and typically range from a few dollars to around $15 per signature.
Remote Online Notarization
If you cannot visit a notary in person, remote online notarization is now an option in most of the country. As of 2025, 47 states and the District of Columbia have laws permitting notarization via live audio-video connection.3National Association of Secretaries of State. Remote Electronic Notarization The process uses identity verification through knowledge-based authentication and credential analysis, and the notary’s electronic seal is cryptographically linked to the document. Before using remote notarization for a residency affidavit, confirm that the receiving agency accepts electronically notarized documents.
Where to File
The completed affidavit goes to whichever agency requested it: a DMV office for licensing, a county assessor for a homestead exemption, or a state revenue department for tax purposes. You can usually submit in person or by certified mail. After filing, the agency reviews your affidavit and supporting documents before updating its records. A successful filing typically produces a confirmation notice or triggers the benefit you applied for, such as an updated license or a reduced property tax bill.
Special Situations
Military Families
The Servicemembers Civil Relief Act carves out powerful residency protections for military members and their spouses. A servicemember does not lose or gain a state of domicile just because military orders station them somewhere else.4Office of the Law Revision Counsel. United States Code Title 50 – 4001 Residence for Tax Purposes If you enlisted in Texas and the military sends you to Virginia, Texas remains your domicile for taxes, voting, and licensing, and Virginia cannot tax your military pay or charge personal property taxes on your car.
The same protection extends to military spouses. A spouse who relocates solely to accompany the servicemember does not acquire residency in the new state. The couple can elect to use the servicemember’s domicile, the spouse’s domicile, or the permanent duty station as their shared tax domicile for any given year.4Office of the Law Revision Counsel. United States Code Title 50 – 4001 Residence for Tax Purposes Earned income from a spouse’s civilian job in the duty-station state is also protected. That state cannot tax it if the spouse is there only because of military orders.
For military families, keeping a signed affidavit on file with the home-state agency preserves the domicile claim. Without that documentation, a state could later argue you abandoned your original domicile by establishing ties elsewhere.
People Experiencing Homelessness
Under the McKinney-Vento Act, public schools must immediately enroll homeless children even when the family cannot produce proof of residency.5Office of the Law Revision Counsel. United States Code Title 42 – 11432 Grants for State and Local Activities for the Education of Homeless Children and Youths Requiring a notarized residency affidavit as a condition of school enrollment violates that law.
For driver licensing, many states offer alternative documentation paths for people without stable housing, such as accepting a letter from a shelter or social services agency in place of a traditional affidavit. Specifics vary by state.
International Taxpayers
If you split time between the United States and another country, a state residency affidavit is not what determines your federal tax status. The IRS uses the substantial presence test, which counts your days of physical presence in the U.S. across a three-year lookback period.6Internal Revenue Service. Substantial Presence Test Certain visa categories, transit days, and medical-emergency days can be excluded, and the closer connection exception (claimed on Form 8840) can override the test when you maintained stronger ties to a foreign country.7Internal Revenue Service. Closer Connection Exception to the Substantial Presence Test If a foreign government asks you to prove U.S. residency to claim treaty benefits, you apply for a certification on Form 8802, and the IRS issues Form 6166.8Internal Revenue Service. Instructions for Form 8802 – Application for United States Residency Certification
Penalties for a False Statement
Because a residency affidavit is made under penalty of perjury, lying on one is a federal crime. Under 18 U.S.C. § 1621, perjury carries a maximum sentence of five years in federal prison, a fine, or both.9Office of the Law Revision Counsel. United States Code Title 18 – 1621 Perjury Generally The false statement must be about something material. A typo in your zip code is not perjury, but claiming to live in a state where you do not reside to dodge income taxes or obtain a cheaper insurance rate is exactly what prosecutors pursue.
State penalties vary but generally treat perjury as a felony. Beyond criminal consequences, a false affidavit can unravel everything built on top of it. A driver’s license obtained with a fraudulent address can be revoked, a homestead exemption can be clawed back with interest and penalties, and tax returns filed from a fake domicile can trigger years of back taxes plus fraud penalties. The downstream costs almost always dwarf whatever benefit the person was trying to claim.
Keeping Your Records Current
A residency affidavit is a snapshot of where you live at a specific moment. When you move, the document becomes stale, and agencies that relied on it need to be updated.
For federal taxes, you notify the IRS of an address change by filing Form 8822, including your new address on your next tax return, or sending a signed written statement with your name, old address, new address, and Social Security number. Processing takes four to six weeks after the IRS receives your request.10Internal Revenue Service. Address Changes If you filed a joint return and you and your spouse now live at separate addresses, each of you must notify the IRS independently. Forwarding mail through the Postal Service is not a substitute, because not all post offices forward government mail reliably.
For driver licensing, most states require you to update your address within 10 to 30 days of moving. Fees range from nothing to around $65 depending on the state, and some states handle it online at no cost. Property tax exemptions often require annual renewal or a new affidavit when you sell the exempted property and buy a different home. Missing a renewal deadline can cost you an entire year of tax savings, and once the deadline passes, most assessors will not backdate the exemption.