To get an affidavit, you write out the facts you want to swear to, then sign the document in front of a notary public who administers an oath and applies their seal. That is the whole process. Most people can finish it in an afternoon, and you rarely need a lawyer to help you do it.
An affidavit is a written statement of facts you swear or affirm to be true before an authorized official, almost always a notary.1U.S. Department of State Foreign Affairs Manual. 7 FAM 850 – Taking an Affidavit Once notarized, it functions like testimony you would give in court, which is why the drafting and the signing both matter.
What Goes Inside the Document
Affidavits follow a standard structure. Missing pieces are one of the most common reasons a court or agency sends the document back.
Start with a title at the top: either the word “Affidavit” or something more specific like “Affidavit of Residence” or “Affidavit of Heirship.” If the affidavit belongs to a court case, include the case caption with the court name, case number, and party names.
Below the title, add the venue. This is the state and county where you are signing. Federal regulations require the venue to appear before the body of the affidavit and to always be stated.2eCFR. 22 CFR 92.26 – Venue on Affidavit
Open the body by identifying yourself. Give your full legal name, your address, and confirm you are over 18 and competent to make the statements that follow. A workable opening: “I, [Full Name], residing at [Address], being duly sworn, state the following based on my personal knowledge.”
Close with a perjury statement, something like: “I declare under penalty of perjury that the foregoing is true and correct to the best of my knowledge and belief.” Leave space for your signature, printed name, and date, and leave a block below that for the notary’s signature, seal, and commission expiration.
Writing the Facts
The middle of the affidavit is a series of numbered paragraphs, each carrying one distinct fact. Federal regulations on affidavit content are direct about the standard: facts within your personal knowledge should be stated directly and positively, not left to inference.3eCFR. 22 CFR 92.27 – Affiant’s Allegations in Affidavit
Stick to what you personally saw, did, heard, or know. If you are relying on information from someone else, say so and identify the source. Skip opinions. Skip conclusions you cannot back up. Write in the first person (“I received,” “I observed”), keep each paragraph to one point, and lay events out in the order they happened.
When you reference a document, attach a copy and label it Exhibit A, Exhibit B, and so on. In the paragraph that mentions it, write something like: “Attached as Exhibit A is a copy of the lease agreement dated March 15, 2026.” Put the label on the first page of each attachment. If you have more than two or three exhibits, keep a running list at the end.
Gather what you need before you draft: your full legal name, current address, and date of birth; the names and addresses of anyone else involved; the specific dates, times, and locations you plan to describe; and any documents you intend to attach. Getting everything in front of you first prevents the kind of small corrections that force you back to the notary.
Getting It Notarized
A signed but unnotarized affidavit has no legal force. The notarization is what turns your written statement into sworn testimony, and for almost every use of an affidavit it is not optional.
Notaries are easy to find. Banks and credit unions usually have one on staff and often notarize for free if you have an account. Shipping stores such as The UPS Store, law offices, real estate offices, courthouses, and public libraries also handle notarizations. A search for “notary near me” will surface mobile notaries who travel to you for an added fee. Fees are set by state law; expect anywhere from a few dollars up to around $20 per signature for standard in-person work, with mobile service costing more.
Bring a current, government-issued photo ID: a driver’s license, state ID card, U.S. passport, or military ID. It must show your photo and signature and cannot be expired. Birth certificates, Social Security cards, and credit cards will not be accepted.
Do not sign the affidavit before you arrive. The notary must watch you sign, so if you have already signed you will need to print a fresh copy.
At the appointment the notary checks your ID, confirms you are the person named in the affidavit, and administers an oath or affirmation. The oath is what puts you under penalty of perjury. You can choose an affirmation instead of an oath if you prefer not to swear; both carry the same legal weight.4National Notary Association. A Notary’s Guide to Oaths and Affirmations After you take the oath and sign, the notary signs, stamps with an official seal, and records the date. The specific certificate used for affidavits is a jurat, which confirms you swore to the contents in the notary’s presence.
You have to appear in person. Someone else cannot take the oath for you, and it cannot be handled over the phone.1U.S. Department of State Foreign Affairs Manual. 7 FAM 850 – Taking an Affidavit
Remote Online Notarization
“In person” no longer always means in the same room. Nearly every state now authorizes remote online notarization, which lets you appear before a notary by live video. You upload the document, verify your identity through digital credential analysis and knowledge-based questions, connect with the notary on video, take the oath, and apply digital signatures. The notary applies an electronic seal, and you download the finished document. It is a useful option if you are in a rural area, have mobility limitations, or need something notarized outside business hours.
When You Can Skip the Notary
For many federal proceedings, you do not need a notarized affidavit at all. Federal law lets you submit an unsworn declaration that carries the same weight as a notarized affidavit, provided you include specific language and sign under penalty of perjury.5Office of the Law Revision Counsel. 28 USC 1746 – Unsworn Declarations Under Penalty of Perjury The required wording is: “I declare under penalty of perjury that the foregoing is true and correct. Executed on [date].” No notary, no seal.
This option applies whenever a federal law, rule, or regulation calls for a sworn written statement. It does not apply to depositions or to oaths required before a specific official.5Office of the Law Revision Counsel. 28 USC 1746 – Unsworn Declarations Under Penalty of Perjury Some state courts and agencies accept similar declarations under their own rules; others do not. Check the specific requirements before you decide to skip the notary.
What You’re on the Hook For
The oath is not a formality. When you sign, you expose yourself to criminal prosecution if you knowingly include false statements. Federal perjury carries up to five years in prison.6Office of the Law Revision Counsel. 18 USC 1621 – Perjury Generally State penalties vary but generally treat perjury as a felony.
A false affidavit also damages your credibility in whatever matter you are involved in, and the other side will use it against you at every opportunity. If you are not certain something is true, leave it out or qualify it with language like “to the best of my knowledge” or “based on information provided to me by [source].”
After Signing
Once notarized, the affidavit is ready to deliver. How you deliver it depends on who asked for it. Courts may require electronic filing through a case-management system, a bank or employer may take a hand-delivered or mailed copy, and government agencies often have their own portals or mailing addresses. Check the recipient’s formatting rules, page limits, and deadlines, because those details vary and can get a filing rejected.
Make at least one copy for yourself before sending the original anywhere. A notarized affidavit is difficult to replace; losing the original means starting the signing and notarization over from the top.
When to Call a Lawyer
Most straightforward affidavits do not need legal help. If you are swearing to basic facts such as your address, your identity, or a simple sequence of events, drafting your own is fine. A lawyer earns the fee when the affidavit touches complex legal issues, when the stakes are high enough that a poorly worded sentence could backfire, or when a court imposes specific content and formatting requirements you are not confident meeting. Estate matters, contested custody cases, and business litigation are the settings where skipping legal advice most often causes trouble.