How to Draft a Promissory Note That Can Actually Be Enforced in Panama.

Most writing about promissory notes deals with collecting on them. This guide deals with the moment before, which is where the outcome is really settled: the drafting. A well drafted note is collected on the fast track with no argument about whether the debt exists. A poorly drafted one sends the creditor into ordinary litigation, or forces a preliminary step before anything can be attached, and that delay is often the difference between recovering the money and writing it off.

On the legal quotations in this guide: Panamanian statutes are authoritative only in Spanish. The passages below are our own working translations, offered for comprehension. Where a case turns on precise wording, work from the Spanish text.

Note: the Civil Procedure Code is Law 402 of October 9, 2023, published in Official Gazette 29887-A of October 11, 2023. Its article 809 set a staggered commencement, and the bulk of the code has been in force since October 11, 2025. This guide describes the current framework; confirm your case with a lawyer.

The rule almost nobody applies: the note is worth what it leaves out

Wanting to lock down a loan is natural. Whoever drafts the paper adds that the borrower will not sell the vehicle, will report any change of address, will grant a mortgage on request. Every one of those clauses is sensible, and any of them can cost the note the very thing that made it useful.

The reason lies in Law 52 of 1917 on negotiable instruments, still in force and still the statute that defines the promissory note in Panama. Its article 5 provides that an instrument carrying an order or promise to do some act in addition to the payment of money is not negotiable.

A note that requires the debtor to do anything other than pay money stops being a negotiable instrument. That label is not academic: it decides which door the note goes through on its way into enforcement. Article 732 of the Civil Procedure Code lists the instruments that carry enforcement power, and two very different routes sit next to each other:

• Item 8 takes negotiable instruments, against makers, endorsers, guarantors and the rest. Enforcement is immediate, with no preliminary step.
• Item 5 takes private documents of any kind, but only where the debtor has acknowledged the signature before the judge, has been declared in default of acknowledgment, or the document has been put before a notary for certification or protocolization.

Article 733 belongs alongside that list: it sets the formal requirements of the title, which must record an obligation that is clear, already due, and for a liquidated or ascertainable sum. Read without it, article 732 is only half the picture.

Load a note with covenants and it drops from item 8 to item 5. In practice that means putting the debtor on notice and waiting for the signature to be acknowledged before you can seek attachment of any asset.

What can go in without breaking it

The statute allows more than people assume. The sum stays certain even where the note is payable with interest, in stated installments, with the whole balance falling due on a missed installment, or with the costs of collection and legal fees. A clause authorizing sale of the collateral on default is allowed too, as is a waiver by the debtor of some statutory benefit.

The dividing line is easy to hold in mind: anything about paying the money belongs in the note; anything requiring another act does not.

The five requirements

For an instrument to be negotiable the statute asks that it be signed by the maker, that it carry an unconditional promise to pay a certain sum of money, that it be payable on demand or at a fixed or determinable future time, and that it be payable to order or to bearer.

From those flow the drafting errors that recur most:

• Acknowledging the debt instead of promising to pay. "I acknowledge that I owe" is not "I promise to pay". The statute asks for a promise, and attaches a useful consequence to the exact words: where an instrument containing I promise to pay is signed by two or more people, they are jointly and severally liable.
• Leaving out "to the order of". A heading reading PROMISSORY NOTE will not do. The words belong in the body, next to the payee.
• One payee, precisely named. Naming two creditors, or one person "who in turn acts for" a company, invites a fight about who is entitled to sue.
• A maturity that faces both ways. Either a fixed date or on demand. Wording such as "at any time within thirty days" tries to be both.
• Debtors who never sign. A company named in the paper but absent from the signature block is not bound: nobody is liable on an instrument that does not carry their signature. And whoever signs for a company needs authority that can be evidenced.

On timing, one widespread belief needs correcting: a note with no payment date is not void. The statute treats an instrument stating no time for payment as payable on demand. A date is still worth having, because enforcement calls for a debt that is clear and already due.

A word on blanks. Whoever holds the instrument is presumed entitled to fill them in, but as against the original signer it binds only if completed in line with the authority given. Every blank is a future argument: whatever can be written before signature, write before signature.

Interest has a ceiling, and the ceiling counts everything

An outdated figure still circulates here. The 7% annual ceiling of Law 4 of 1935 gets quoted, but that provision was repealed by article 285 of Decree Law 1 of 1999. What governs is the Civil Code.

Article 1450. Agreed interest exceeding two percent (2%) per month shall be reduced by the court to that rate, even where the debtor does not plead the defense of usury.

Two consequences follow. The court cuts the rate on its own motion, without the borrower raising it. And, under the first paragraph of the same article, any sum the lender is to receive over the principal counts as interest, whatever it is called, whether a penalty, compensation for loss or anything else. A note at 2% a month that also carries surcharges has already broken the ceiling.

A borrower who has overpaid can recover the excess and an equal amount on top. Careful drafting therefore fixes a single default charge and says that nothing else accrues alongside it. Costs and legal fees sit outside the calculation.

The fix: two documents, not one

Where the deal genuinely needs security, the sound structure separates them:

1. The promissory note, a single page: the unconditional promise, the amount, the date, the payee to order, one default rate, the signatures.
2. A debt acknowledgment and security agreement, carrying the origin of the debt, the covenants, the security interests, set-off, governing law and addresses for service.

Both are signed the same day and each refers to the other. The note keeps its enforcement power; the agreement carries everything else. It is worth adding that the note is given to facilitate collection and does not discharge the obligation under the agreement, so that nobody argues novation later.

Naming the underlying agreement inside the note does no harm: the statute expressly allows a promise to stay unconditional even where it recites the transaction that gave rise to the instrument.

Before signing

• Write in the maturity date and the amount in figures and words, leaving nothing blank.
• Check the authority of anyone signing for a company, against a current Public Registry certificate.
• One payee, with the words "to the order of" in the body.
• One default charge, with nothing stacked on top.
• Strip out every obligation that is not paying money.
• Notarize the signatures, even though a negotiable note does not require it.

That last point is worth a sentence. A negotiable note is enforced without acknowledgment of signature. But if a court ever questions what kind of document it is, notarial certification gives it a second way in under item 5 of article 732. It costs very little and can save an appeal.

Legal basis: Law 52 of 1917 on negotiable instruments; Civil Code, article 1450 (as amended by Law 7 of 1928); Code of Commerce, articles 221 and 223; Civil Procedure Code (Law 402 of October 9, 2023, Official Gazette 29887-A; staggered commencement under article 809, with the bulk of the code in force since October 11, 2025), articles 731 and 732. Provisions of Law 52 of 1917 are given in substance rather than as literal transcription: the 1917 Gazette survives only as a microfilm without a text layer. Statutory quotations are our own translations from the Spanish. Informative content, not legal advice.