An affidavit is a written statement of facts, sworn to be true under oath before a notary or other authorized official — used in court proceedings, business transactions, and countless other situations where someone needs to formally attest to something in writing.
The structure courts and institutions expect
A proper affidavit identifies the person making the statement (the affiant), states that the facts are within their personal knowledge, lays out the facts in clear numbered paragraphs, and includes a notarization block — deviating from this expected structure is a common reason affidavits get rejected.
Stick to facts, not opinions or arguments
An affidavit should state what the affiant personally observed or knows — not legal conclusions, arguments, or speculation. Affidavits that stray into argument are frequently challenged or given less weight by a court.
It has to be properly sworn, not just signed
Signing an affidavit without actually swearing to it before an authorized notary doesn't create a valid affidavit — the oath is what gives it legal weight, and skipping this step is one of the most common and most damaging mistakes people make preparing their own.
Why precision matters more than it seems
Because an affidavit is a sworn statement, inaccuracies aren't just embarrassing — they can carry perjury consequences and undermine your credibility on everything else in the document. Getting the facts, structure, and execution right the first time is worth the extra care.