Does a spouse have to sign a promissory note?

In most cases, no. A spouse's signature isn't needed for a promissory note to be valid, because a note binds only the people who sign it as borrowers. If one spouse signs an unsecured note for a personal loan, that spouse is the one who owes the money. That simple answer comes with a few catches, though, and each one can change who pays if the loan goes bad.

This guide is about a spouse signing as a party, meaning as a co-borrower, co-signer, or guarantor. A spouse who only signs as a witness takes on no debt, and splitting up notes in a divorce is a separate question.

Only the people who sign are bound

A promissory note is a written promise to pay. Contract law holds the maker to that promise, and the maker is whoever signs as borrower. If your spouse didn't sign, your spouse didn't promise anything, and a lender generally can't sue your spouse on the note.

Banks and other businesses that lend regularly also face a federal rule here. Regulation B, published by the Consumer Financial Protection Bureau (CFPB), says a creditor "shall not require the signature of an applicant's spouse or other person, other than a joint applicant, on any credit instrument if the applicant qualifies" under the creditor's standards. A borrower who qualifies alone can get credit alone.

A parent or friend making a one-time loan usually isn't a creditor under that rule. The contract principle still applies to everyone: no signature, no personal promise.

Community property can change the picture

Some states treat most property earned during a marriage as belonging to both spouses. In these community property states, a debt one spouse takes on can reach property the couple shares, even if the other spouse never signed.

California is the best-known example. Its Family Code section 910 says "the community estate is liable for a debt incurred by either spouse before or during marriage, regardless of which spouse has the management and control of the property and regardless of whether one or both spouses are parties to the debt". So a lender who gets a judgment against the borrowing spouse may be able to collect from community property, like a joint bank account funded by paychecks.

That's different from making the other spouse personally liable. Property that belongs only to the nonsigning spouse, such as an inheritance kept separate, usually stays out of reach. Regulation B reflects this split. For unsecured credit in a community property state, a creditor may ask for the spouse's signature on any instrument needed under state law to make community property available to pay the debt.

A note secured by a home usually needs both spouses

Things change when the borrower pledges the family home. Many states protect a homestead, and some require both spouses to join in any mortgage on it.

Florida's constitution is a clear example. Article X, section 4 says the owner of homestead real estate, "joined by the spouse if married, may alienate the homestead by mortgage, sale or gift". A lender who skips the spouse's signature risks holding a mortgage it can't enforce against the house.

Regulation B allows lenders to ask for this. For secured credit, a creditor may require the spouse's signature on any instrument needed under state law to make the collateral available after a default, for example to create a valid lien or waive inchoate rights. Inchoate rights are a spouse's possible future claims to the property, such as homestead or dower rights, that haven't fully taken effect yet.

Here's the distinction that trips people up. Signing the mortgage or deed of trust to release homestead rights doesn't by itself make the spouse liable on the note. That spouse agrees the house can be taken if the debt isn't paid, but may not owe any shortfall personally. Read what each signature line actually says.

When a lender asks a spouse to co-sign

A private lender who's nervous about repayment may simply ask both spouses to sign the note. The reasons are practical. Two incomes stand behind the promise, and the lender can reach property the couple owns jointly. In states that recognize tenancy by the entirety, a creditor of only one spouse often can't touch property held that way.

Regulated creditors face limits. The CFPB's official interpretation of Regulation B says that when an applicant doesn't qualify alone, a creditor may require a cosigner or guarantor but "cannot require that it be the spouse." The borrower can offer a spouse, a parent, or anyone else who qualifies.

What signing means for the spouse

A spouse who signs as a co-maker takes on the whole debt. Most notes signed by two borrowers say they're jointly and severally liable, which means the lender can collect the full balance from either one. If the marriage later ends and a divorce decree assigns the debt to one spouse, the lender isn't bound by that decree and can still pursue both signers.

A spouse who signs as a guarantor promises to pay only if the borrower doesn't. When things go wrong, the result looks much the same: the guarantor can be sued for what's left unpaid. How long a lender has to file that suit depends on the state, and our statute of limitations lookup shows the period for written contracts and notes.

Signing also shows up on credit reports when a regulated lender reports the account. A co-signed loan counts against the spouse's borrowing capacity even if the other spouse makes every payment.

How to decide who signs

Start with the collateral. If the note is secured by the home or other jointly owned property, check your state's homestead and marital property rules, and get the nonborrowing spouse's signature on the mortgage, deed of trust, or security agreement where it's required.

Next, decide whether the lender needs the spouse personally on the hook. If yes, list both spouses as borrowers on the note and include a joint and several liability clause. If no, have only the borrowing spouse sign the note, and label the other spouse's signature on the security document as consent to the lien.

Finally, make the paperwork match the plan. A note that names both spouses as borrowers but carries only one signature invites a dispute. So does a spouse who signs an unlabeled line. Each signature block should show the person's name and the role, such as borrower, guarantor, or consenting spouse.

Sources

• CFPB, Regulation B, 12 CFR 1002.7 (signature of spouse or other person)
• California Family Code section 910
• Florida Constitution, Article X, section 4 (homestead)