What you need to do to add a signer

To add a signer to your checking account, contact your bank directly—by phone, in person, or through their website—and ask to add an authorized user or joint account holder. The bank will ask for the new signer's name, date of birth, Social Security number, and address. You'll typically need to sign paperwork authorizing the change, and the new signer may need to sign as well. The process usually takes a few days to a week, though some banks complete it the same day if you're in a branch.

The exact steps depend on your bank and whether you want to add someone as a joint account holder (equal ownership and access) or an authorized user (access to the account but no ownership). Joint account holders can close the account or remove signers; authorized users cannot. Most banks offer both options, but you choose which one fits your situation.

Key Takeaways

  • Contact your bank by phone, online, or in person to start the process; you cannot add a signer by mail at most institutions.
  • You will need the new signer's full name, date of birth, Social Security number, and current address before you call or visit.
  • Joint account holders have equal rights to the money and can remove other signers; authorized users can access funds but cannot make account changes.
  • The process typically takes three to seven business days after all paperwork is signed, though some banks complete it immediately in a branch.
  • Both you and the new signer may need to verify your identity with a government ID or answer security questions during the process.

Joint account holder versus authorized user

A joint account holder owns the account equally with you. Both signers can deposit money, withdraw money, write checks, set up automatic payments, and close the account. Either signer can remove the other without permission. If one joint holder dies, the surviving holder typically owns the full balance (though this varies by state and how the account is titled). Joint accounts are common for spouses, domestic partners, or parents managing money for adult children.

An authorized user can access the account and move money but does not own it. You retain full control: you can remove an authorized user at any time, and you alone can close the account or change account terms. An authorized user cannot remove other signers or add new ones. If you die, the authorized user loses access immediately. This option works well for caregivers, adult children helping with bills, or employees who need to manage business expenses.

Some banks use different names for these roles—"co-owner" instead of "joint account holder," or "signer" instead of "authorized user"—but the rights and responsibilities are the same. Ask your bank which term they use and confirm what each person can and cannot do before you sign anything.

Information you'll need before you contact the bank

Gather these details about the person you want to add before you call or visit your bank. You will need their full legal name (as it appears on their ID), date of birth, Social Security number, and current mailing address. Some banks also ask for a phone number and email address. If the new signer lives outside the United States, the process may take longer and your bank may have additional requirements.

Have your own account number and ID ready as well. If you're adding a signer by phone, the bank will verify your identity by asking security questions or requesting information from your account. If you're visiting a branch in person, bring a government-issued ID.

How to add a signer by phone or online

Call your bank's customer service number (on the back of your debit card or on their website) and say you want to add a signer to your checking account. The representative will confirm your identity, ask whether you want a joint holder or authorized user, and collect the new signer's information. They will explain what paperwork you need to sign and how you'll receive it—usually by mail or email.

If your bank offers online account management, log in and look for a section called "Account Settings," "Manage Account," or "Authorized Users." Not all banks allow you to start the process online, but many let you upload signed forms or track the status of a pending request. After you submit the information online, the bank will send you documents to sign, typically within one business day.

Once you receive the paperwork, sign it and return it to the bank as instructed—usually by mail, email, or in person at a branch. The new signer will also need to sign. Some banks require the new signer's signature to be notarized; ask when you receive the forms. After the bank receives all signed documents, the change typically takes three to seven business days to process.

How to add a signer in person at a branch

Visit your bank branch with your ID and ask to add a signer to your account. Bring the new signer with you if possible; many banks prefer to verify both people's identities in person and have both sign the paperwork on the spot. If the new signer cannot come to the branch, you can still start the process, but the bank will mail forms for them to sign and return.

The branch representative will confirm which type of signer you want, collect the new person's information, and have you both sign the necessary forms. If everything is in order and both people are present with ID, some banks complete the change immediately—the new signer can use the account that same day. If paperwork needs to be mailed or notarized, expect three to seven business days.

What happens after you submit the paperwork

After you and the new signer have signed all forms and returned them to the bank, the bank will process the request. During this time, the account remains unchanged—only you can access it. Once the bank approves the change, the new signer will receive notification (usually by mail or email) and can begin using the account immediately.

The new signer can then request a debit card, set up online access, or start writing checks, depending on what the account includes. If you set up the new signer as a joint holder, they will have the same online login or can create their own. If they are an authorized user, they may have limited online access depending on your bank's policies—ask your bank what the new signer can see and do online.

What to do if the bank denies the request

Banks occasionally refuse to add a signer if the person has a poor banking history, an active fraud alert on their credit report, or an outstanding debt to the bank. Some banks also have policies against adding signers with certain criminal records. If your bank denies the request, ask for the specific reason in writing.

If the reason is a credit or fraud issue, the new signer can contact the credit bureaus or the bank directly to dispute inaccurate information. If the reason is a bank policy, you may be able to open a new account at a different bank that has fewer restrictions. Some smaller banks and credit unions have more flexible policies than large national banks.

Frequently Asked Questions

Can I add a signer to my account if they live in a different state?

Yes. Most banks allow you to add signers who live out of state. You can start the process by phone or online, and the bank will mail forms for the new signer to sign and return. Some banks require notarization if the signer is not present in a branch. The timeline is the same—three to seven business days after all paperwork is received.

Does the new signer need to be present when I add them?

No, but the bank will require their signature on the paperwork. If they cannot visit a branch with you, the bank will mail or email forms for them to sign and return. Some banks accept electronic signatures; others require a wet signature or notarization. Ask your bank which method they accept.

Can I remove a signer later if I change my mind?

Yes, but the process depends on whether they are a joint holder or authorized user. You can remove an authorized user at any time by contacting the bank. If the person is a joint account holder, you may need their permission to remove them, or you may need to close the account and open a new one without them. Check your bank's policy before you add them.

Will adding a signer affect my credit score?

Adding a signer to a checking account does not affect your credit score. Checking accounts are not reported to credit bureaus. However, if the new signer has unpaid debts or fraud issues, the bank may refuse to add them for its own risk reasons.

What if I want to add a signer but they don't have a Social Security number?

Most U.S. banks require a Social Security number to add a signer. If the person has an Individual Taxpayer Identification Number (ITIN) instead, some banks will accept it. Call your bank and ask whether they accept ITINs before you start the process. If your bank refuses, you may need to try a different bank or credit union.