What is a Promissory Note?

It is used by private lenders, borrowers and guarantors who want the terms recorded before work starts or money changes hands, rather than reconstructed from memory afterwards. Putting it in writing is what turns an understanding into something either side can rely on.

14 details are captured across 4 areas: parties and contact details, payment and financial terms, dates, timing and duration, and legal protections and risk. Together they fix what the lender owes the borrower, measured in instalments rather than in adjectives.

The repayment schedule showing each due date is what settles most disagreements here, which is why it is worth attaching rather than leaving in an inbox. Private agreements between people who trust each other are the ones least likely to be written down and most likely to end a relationship when they go wrong. The written record is the point.

Complete the fields, read the assembled promissory note in the preview panel, then download it in PDF or Word format. The document follows widely used contract conventions, though it cannot account for every state rule or industry requirement — professional review is sensible before signing anything substantial.

What matters most in a promissory note

Write the amount in figures and words

This simple step prevents the most common alteration dispute, and it is standard practice on negotiable instruments for that reason.

Set a definite repayment schedule

'When you can afford it' has no due date, which means there is nothing to enforce and the limitation period may never begin to run.

Check the usury cap before setting interest

Every state limits enforceable interest. Exceeding the cap can void the interest and occasionally more.

When you need a promissory note

  • Before the lender starts: Put the promissory note in place before anyone relies on it. An agreement signed after work has begun is far harder to enforce on the terms you actually intended.
  • When risk needs allocating: Decide who carries which risk and who insures it before an incident rather than after one. Afterwards, both readings of the silence are self-serving.
  • When an interest rate above the cap the state actually allows is a realistic prospect: If this is the way the arrangement usually goes wrong, it belongs in the document. Allocating that risk in advance is much cheaper than allocating it afterwards.
  • When the counterparty is new to you: With no track record between the parties, the written terms do the work that familiarity would otherwise do. That is exactly when precision pays for itself.
  • When either side may need an exit: Agree how the arrangement ends while both parties are still on good terms. Exit clauses negotiated during a dispute rarely favour anyone.
  • When the arrangement will repeat: For a relationship that runs across several jobs or periods, agree the standing terms once and let each instance sit under them rather than renegotiating from scratch.

What to include in a promissory note

This generator collects 14 details. Here is what each group covers and why it matters when the document is relied on.

Parties and contact details

These entries decide who can enforce and who can be enforced against. Where either side is a company, use the registered name — a trading name is not a party.

Lender Name
The person or institution advancing the funds.
Lender Address
The lender's address for repayments and default notices.
Borrower Name
The person or entity responsible for repaying the loan in full.
Borrower Address
The borrower's address for statements and demand notices.

Payment and financial terms

Say what happens when the borrower pays late. Without interest and a right for the lender to suspend, the deadline is a suggestion.

Loan Amount
The principal sum advanced, written in both figures and words to prevent later argument.
Interest Rate
The annual rate and how interest accrues. Most states set a usury ceiling that caps enforceable interest.
Payment Terms
The invoicing cycle, payment window, accepted methods and consequences of non-payment.
Late Fee
The charge for overdue payment and the grace period before it applies. Keep the fee proportionate — a penalty that vastly exceeds actual loss is often unenforceable.

Dates, timing and duration

Where the lender depends on the borrower for something, say what happens to these dates when it arrives late. Otherwise the delay attaches to the wrong party.

Effective Date
The date the agreement takes effect. This can differ from the signature date, and it is the date obligations start running from.
Repayment Start Date
When the first instalment falls due, including any agreed payment holiday.
Maturity Date
The date the final payment is due and the balance must be cleared in full.

Legal protections and risk

Naming the governing law and the forum here avoids a preliminary fight about where a dispute over the loan is even heard.

Collateral
Any asset securing the obligation, described precisely enough to identify and recover it.
Default Terms
What counts as a default, any cure period, and the remedies available to the non-defaulting party.
Governing State
The state whose law governs the agreement. Choose a state connected to the parties or the work, as a wholly unconnected choice may not be respected.

Completing this promissory note

Reviewing it against what actually happens

Arrangements drift. If the way the lender and the borrower work together has moved away from the wording, reissue the document rather than relying on a version that no longer describes reality.

Attaching the repayment schedule showing each due date

The repayment schedule showing each due date carries most of the evidential weight here. Attach it as a schedule and refer to it by name in the body, rather than leaving it as an email nobody can find later.

Describing the loan

The strongest version of this promissory note describes the loan in terms someone outside the deal could check — quantities, instalments, dates and standards. Write it so a reader who was not in the room can tell whether it has been done.

Reading it as the other side would

Before signing, read the promissory note from the counterparty's position and look for anything you would exploit. If you find something, so will they.

Checking the consents

Where a landlord, lender, insurer or licensing body has to approve the arrangement, obtain that approval before each due date rather than assuming it will follow as a formality.

Common mistakes to avoid

  1. Assuming the other side has authority. Check that whoever signs can bind their organisation. A signature from someone without authority is a defence waiting to be raised.
  2. No record of what was handed over. List what passes between the parties and when. Reconstructing that list months later, from memory, is how honest people end up in genuine disagreement.
  3. Overlooking third-party consents. Where a landlord, lender, insurer or regulator has to agree, get that consent before each due date rather than assuming it will follow.
  4. Using approximate dates. Use calendar dates rather than triggers like "on approval" or "once ready". A date that cannot be located on a calendar cannot be used to show that someone is late.
  5. Skipping the notice details. Say where notices go, in what form, and when they count as received. Agreements fail at this point more often than at the clauses people actually negotiate.

How to use this promissory note generator

  1. Fill in the form. Enter the 14 details requested. Where an entry depends on a count — instalments, dates, amounts — put the number in rather than a description of it. Nothing is sent to a server — the document is assembled in your browser.
  2. Read the preview. Read the preview as though you were the borrower rather than the lender. Anything ambiguous is easier to fix now than to argue about after each due date.
  3. Download and sign. Download in either format and circulate for signature. Diarise the dates the document creates, particularly anything that has to happen before each due date.

Promissory Note — frequently asked questions

Is a loan between family members legally enforceable?

Yes, provided the essentials are documented: identified parties, a stated sum, a repayment obligation and signatures. Being related makes no difference to enforceability — but without documentation, a court or tax authority may treat the money as a gift, which can matter for both recovery and tax. Keep records of the transfer and every repayment.

What usually goes wrong with a promissory note?

Interest rate above the cap the state actually allows. It is the recurring failure in this kind of arrangement, and it is rarely addressed in the document because both sides assume it will not happen to them. Name it, say who bears the cost, and the negotiation happens now rather than from a weak position later.

What is the most important thing to get right in a promissory note?

The description of the loan. Almost every later clause — price, timing, whether each due date has been reached — refers back to it, so an imprecise description there weakens the whole document. State it in instalments and attach the repayment schedule showing each due date rather than relying on a general description both sides read differently.

Which state's law should govern this promissory note?

Choose a state with a genuine connection to the parties or the subject matter — where a party is based, or where the work or property is located. A choice with no connection at all may not be respected, and for property or employment the local state's rules will often apply regardless of what the contract says.

How much can the late fee be?

It should be a genuine estimate of the cost of late payment, not a punishment. Courts strike down fees that are disproportionate to actual loss, and several states cap late fees on rent specifically. A modest percentage after a stated grace period is the defensible approach.

Is there a limit on the interest I can charge?

Yes. Every state sets a usury ceiling, and the limits vary considerably. Charging above it can render the interest unenforceable and in some states carries further penalties. Check your state's current cap before agreeing a rate, particularly if you lend more than occasionally.

What interest rate can I legally charge?

State usury laws set the ceiling, and it varies widely. Some states also treat loans differently depending on whether the lender lends regularly. Check your state's limit before setting a rate, since exceeding it can cost you the interest and occasionally more.

Does this document need to be notarised?

For most private agreements, no — signatures from both parties are enough. Notarisation is worth it for larger sums, anything secured against property, or where you anticipate the document being challenged, because it makes the signature very difficult to deny.