Fill a Promissory Note online — free template
A promissory note is a signed promise from a borrower to repay a debt on agreed terms — principal, interest rate, payment schedule. Used for personal loans (family, friends), small-business lending, or as a formality alongside a mortgage. AttachKit fills the recurring parts (names, addresses, dates) so you can focus on the loan terms.
The work happens in your browser — open DevTools → Network and watch: the file is never uploaded to do it.
Who needs it: Anyone lending money to another person and wanting documentation. Small businesses formalizing inter-company loans. Real estate buyers signing seller-financed deals.
Why fill it here
- Auto-fill lender (you) + borrower name + address, principal amount, signing date.
- Manual entry for interest rate, payment frequency, maturity date — AttachKit doesn't pick these for you.
- Sign in-browser via /app/sign — adds a tamper-evident audit page with WebAuthn passkey proof (Max).
- Free to fill unlimited forms (10 signed PDFs/mo on the free tier).
Fill your Promissory Note now
Promissory Note questions, answered
General information, not legal or tax advice
This page is general information about a commonly-used document. State and local law varies — for advice on your specific situation, consult a licensed attorney in your jurisdiction. AttachKit fills the PDF; you're responsible for whether the contents are right for your case.
- Does a promissory note need to be notarized?
- Not always. Most states make a signed note enforceable without notarization. Notarization adds a layer of identity verification that helps in disputes — /app/sign with the Notary feature (Max) is the browser-native equivalent.
- What interest rate can I charge?
- Subject to state usury caps. Loans between family members under the IRS Applicable Federal Rate (AFR) can trigger imputed-interest reporting. Look up the current AFR before setting a below-market rate.
- Can I include a personal guarantee?
- Yes. A personal guarantee section is editable as free-form text in the template. For complex multi-party guarantees, have a lawyer review.
More forms: NDA · Contractor agreement · Power of attorney · Bill of sale · Release of liability · Browse all 126 forms →
Done filling? Also sign a PDF, convert PDF to Word, Word to PDF — or see AttachKit for lawyers.
AttachKit is a private, independent tool for filling and signing PDFs on your own device. It is not a government agency, law firm, or filing service, and is not affiliated with or endorsed by the IRS, USCIS, the U.S. Department of State, or any government body. Forms are provided for convenience — always download the current version and instructions from the official .gov website, and your completed document never leaves your browser.