Why This One Has to Go by Mail
Freezing your own credit is quick. Each bureau has an online form, all three take about fifteen minutes together, and federal law makes it free. If that is your situation, use the online forms and skip the envelope.
The letters here are for the other situation. A parent has a stroke, or dementia reaches the point where they can no longer manage their accounts, and the family finds the credit file unprotected. Federal law covers this. The bureaus must honor a freeze placed by a guardian, a conservator, or an agent under a power of attorney, on behalf of a person who cannot place it themselves, and they must do it for free.
What federal law does not do is make it convenient. All three bureaus handle that request by mail only. No phone line takes it and no web form accepts it, because the bureau has to see a copy of the document that gives you authority.
Why All Three, Not One
A security freeze is not shared between the bureaus. Each of the three keeps its own file on your parent, and a freeze at Equifax does nothing at Experian or TransUnion. A lender that happens to pull the bureau you skipped sees an open file and can approve the account, which is the whole thing you were trying to prevent. Federal law puts the duty on each bureau to honor a request it receives, and it does not require any bureau to pass your request to the others.
A fraud alert works the opposite way, and that is where the confusion starts. Place a fraud alert at any one bureau and that bureau has to tell the other two, so one contact covers all three. The two tools are often described together, and people reasonably assume the one-call rule applies to both.
The practical difference is what each one does. A fraud alert tells a lender to take extra steps to verify identity before extending credit, and a lender can proceed anyway. A freeze blocks the credit check outright, so the account cannot open. The freeze is the stronger tool, and the price of that strength is that you write three letters instead of one. The full comparison is on fraud alert against credit freeze.
A third thing gets confused with both, and it is worth two minutes. A credit lock is not a credit freeze. It blocks the same credit pull, but it is a product sold under the bureau's own terms rather than a right under federal law, it is sometimes bundled into a paid subscription, and nobody can place one for a parent who can no longer manage their own accounts.
TransUnion Uses Three Different Addresses
This is the detail that costs families weeks, and the reason this is software rather than a template you download.
TransUnion runs three addresses across these situations, and which one is right turns on who the credit file belongs to, not on which document you are holding.
- Freezing your own file by mail goes to P.O. Box 160, Woodlyn, PA 19094.
- A protected consumer freeze, meaning one placed for a minor or for an adult who can no longer manage their own affairs, goes to P.O. Box 380, Woodlyn, PA 19094.
- Managing the freeze of an adult who is still competent, where you simply hold a power of attorney, goes to a different address entirely, P.O. Box 2000, Chester, PA 19016.
That third one is the trap, and it is the one most templates get wrong. They tell you a power of attorney goes to Box 380, which is right when the person is incapacitated and wrong when they are not. Equifax and Experian each use one box either way, so nobody expects the third bureau to have three.
A letter sent to the wrong box does not come back. It reaches a department that does not handle that request, and you hear nothing, which looks the same as a request still in progress. Families usually find out a month later when they call to check.
The generator picks the box from your answer to the first question, and it assumes the person you are protecting cannot place the freeze themselves. If they can, and you are just helping, use the Chester address.
What to Put in the Envelope
The letter is three paragraphs. What decides the outcome is the stack of copies behind it, and here the three bureaus stop agreeing with each other. The generator prints the correct list at the bottom of each letter and flags what that bureau does differently, because a single generic list is wrong for at least two of them.
The short version, for a freeze you are placing for someone else. Equifax is the heaviest. It wants your authority document, your own ID, and both the Social Security card and the birth certificate of the person you are protecting. TransUnion wants the authority document plus identification for each of you, and accepts a plain letter with no form. Experian is the awkward one, because the only mail procedure it publishes covers minors and court-appointed guardians, and it publishes nothing for a power of attorney or an adult conservatorship. If that is your situation, call Experian at (888) 397-3742 before mailing and ask where to send it.
For your own freeze it is lighter. TransUnion requires no enclosures at all, just your name, address, and Social Security number in the letter. Experian wants a photo ID and a utility bill or bank statement. Equifax wants a document showing your Social Security number, and it will not take a driver license for that, only as proof of address.
Three things worth doing, from having sent these:
- Send copies, never originals. Nothing comes back.
- Mail all three bureaus the same day, so the three clocks run together instead of end to end.
- Use certified mail with return receipt. It costs a few dollars and gives you a date you can prove, which matters if a fraudulent account opens while the freeze is in transit.
Once a bureau has a complete request, federal law gives it three business days to place the freeze. Add mail in both directions and plan on one to two weeks. You will get written confirmation, and for your own freeze, a PIN or password you need later to lift it. Put that somewhere your family can find it.
Freezing Credit for a Parent Who Cannot Do It Themselves
Three documents give you authority the bureaus will accept, and which one you hold changes the letter.
- A durable power of attorney, if it was signed while your parent still had capacity and has not been revoked. In Florida it is effective the moment it is signed, so there is no activation step.
- Letters of guardianship, issued by a court.
- Letters of conservatorship, also issued by a court.
One caution, because this cuts both ways. The document that lets you protect your parent's credit is the same document that drains their accounts in the wrong hands. If you are reading this because another family member is using a power of attorney against your parent rather than for them, a freeze is not the answer, and that conduct has a name in Florida law. Start with power of attorney abuse.
If your parent still has capacity but is getting frail, sign the power of attorney now, while it is simple. That is the difference between mailing three letters and filing a guardianship petition. We cover the choice on power of attorney for an elderly parent.
What If There Is No Power of Attorney?
This is the call we take most often. If your parent can no longer sign a power of attorney, and nobody had one signed while they could, you cannot create that authority now. The bureaus will not accept a letter from a concerned child with no document behind it, and they are right not to, because an exploiter's letter looks the same.
The remaining path runs through a court, and which one depends on timing.
- A guardianship gives you legal authority to act, including for the freeze. It is the permanent fix, and it is slow, public, and a serious step.
- If money is moving right now, Florida law lets a court enter an injunction protecting a vulnerable adult from exploitation. That order can freeze the accounts themselves, including joint accounts and credit lines, within days rather than months, and there is no filing fee. It reaches further than a credit freeze because it stops money leaving accounts that are already open. Read the vulnerable adult injunction and call today rather than this week.
Report it at the same time. The Florida Abuse Hotline runs day and night, and a report opens an Adult Protective Services investigation that runs alongside anything you do in civil court.
The Other Four Registries That Matter
The three big bureaus are the headline. Four more registries decide whether someone can open a bank account, turn on a phone, or start utility service in your parent's name, and a person locked out of the big three will try one of these. Each takes a freeze request by phone.
Tap any number to call it. On a computer, use the button below the list to save all of them to your phone at once.
Reporting an active scam, or abuse in a facility, uses a different set of numbers. Those are on the Florida elder abuse hotline directory.
A freeze protects the future and does nothing about the past.
If a parent has already sent money, signed something, or changed a beneficiary, that is a separate problem with its own deadline. A free consult sorts out which one you are dealing with.
Book a free 30-minute consultThe Code Behind This Is Published
The logic behind these letters, including every bureau address and the statutory language, is on GitHub as elder-fraud-toolkit under an MIT license. Anyone can read it, check it against the bureaus' own published procedures, send a correction, or reuse it for free.
We publish it for the same reason we publish the math behind the probate cost calculator. A tool that produces a document you are going to sign and mail should be checkable. If a bureau changes an address, the fix belongs somewhere anyone can see it.
There is also a compact version you can drop into your own site with two lines of HTML. Legal aid offices, senior centers, credit unions, and other elder law firms are welcome to it, free, on the condition that the credit line stays visible. See how to embed the widget.
Common Situations
She found three cards nobody recognized
Her mother had moved into memory care. Clearing the house, she found statements for three credit cards no one in the family knew about. Her mother had signed a durable power of attorney years earlier, which was the document that mattered. Three letters went out certified that afternoon, all three freezes were in place inside two weeks, and the fraudulent accounts became a dispute instead of a growing balance.
He called the bureaus first and lost a week
He spent a morning on hold with all three. Each told him the same thing, that they could not take his request over the phone. None of them mentioned that the mail route exists. He took that as a no and lost a week before finding out the answer was yes, just slower.
No document at all, and money still moving
Their father was past the point of signing anything, and a man he met online was still calling him daily. A credit freeze was the wrong tool, because the money was leaving accounts already open. The move was a court order freezing those accounts, with the freeze letters going out afterward to close the other door.
Questions Families Ask
Does a Credit Freeze Cost Anything?
No. Federal law makes a security freeze free at all three nationwide credit bureaus, to place and to lift, for you and for anyone you are lawfully acting for. Lifting it temporarily when your parent needs new credit is also free. A site charging you to place a freeze is selling credit monitoring, which is a different product. Monitoring tells you after someone opens an account. A freeze stops the account from opening.
Do I Really Have to Write to All Three Bureaus?
Yes. A security freeze is not shared between the bureaus. Each one keeps its own file on you, and freezing at Equifax does nothing at Experian or TransUnion, so a lender pulling the bureau you skipped sees an open file. Federal law puts the duty on each bureau to honor a request it receives, and it does not make any bureau pass your freeze request along. A fraud alert works the opposite way. Place one at any single bureau and that bureau has to tell the other two, which is where the confusion comes from. Freezes are three requests; fraud alerts are one.
Can I Freeze My Elderly Parent’s Credit?
Yes, if you hold the right document. Federal law requires the bureaus to honor a freeze request from a guardian, a conservator, or an agent under a power of attorney, on behalf of someone who cannot place it themselves. It is called a protected consumer freeze. All three bureaus handle that request by mail only, and each wants a copy of your authority document plus identification for both of you. The generator on this page writes the letters and lists what each bureau expects enclosed.
How Long Does a Mailed Freeze Take?
Federal law gives a bureau three business days to place the freeze once it receives a complete request. Add mail in both directions and plan on one to two weeks per bureau. Send all three the same day so the clocks run together instead of end to end. If money is moving now, do not wait on the mail. Call the bureaus to freeze what you can today, and ask about a court order that can freeze the accounts themselves within days.
Will a Freeze Stop the Fraud That Already Happened?
No. A freeze stops new accounts from being opened in your parent’s name. It does nothing about accounts already open, money already sent, a deed already signed, or a beneficiary form already changed. Those are recovery problems, they run on their own track, and some carry much shorter deadlines. Freeze first because it is free and fast, then deal with what already went out the door.
Do I Have to Put a Social Security Number in the Letter?
Usually yes, and this is the one place people should slow down. TransUnion asks for the name, address, and Social Security number in the written request itself. Experian asks for the number along with your date of birth and every address from the past two years. Equifax wants a document that shows the number, and it does not accept a driver license for that. So the number generally has to be in the envelope. What it does not have to do is pass through a computer. This tool never asks you to type it. The letters print a blank line where the number goes, and you write it on the paper by hand before mailing. Never email a Social Security number, and never give one to someone who called you.
Does Freezing Credit Hurt a Credit Score?
No. A freeze does not appear on the credit report and does not affect the score. Existing accounts, cards, and automatic payments keep working, and a current lender can still review an account it already has. It blocks new credit checks, which is the point of it.
What About the Fourth Credit Bureau Nobody Mentions?
Innovis is a fourth consumer reporting agency, and three more matter in practice. ChexSystems screens applications for new bank accounts, NCTUE covers utility, phone, and cable applications, and LexisNexis Risk Solutions feeds insurers and lenders. Someone locked out of the big three will try one of these instead. All four take freeze requests by phone, and their numbers are on this page.
Is This Legal Advice?
No. This page and the letters it generates are general information built from federal law and each bureau’s published procedures, and using them does not create an attorney-client relationship. If money is already gone, or if the person you are protecting can no longer sign a power of attorney, that is a legal problem with deadlines attached, and it is worth a free consult.
Sources of Law
- Fair Credit Reporting Act, 15 U.S.C. §1681c-1 (security freezes, the protected consumer freeze placed by a representative, and the free-of-charge and three-business-day requirements).
- Fla. Stat. §501.0051 (Florida security freeze statute, including freezes placed by a representative for a protected consumer).
- Fla. Stat. §825.1035 (injunction for protection of a vulnerable adult from exploitation, including orders freezing assets).
- Fla. Stat. ch. 709, pt. II (Florida Power of Attorney Act, durable powers effective on execution).
- Equifax, Experian, and TransUnion published freeze-by-mail procedures and mailing addresses, retrieved August 12, 2026.
- FBI Internet Crime Complaint Center, 2025 Elder Fraud Report (201,266 complaints and more than $7.7 billion in losses reported by victims age 60 and over), ic3.gov.
Updated on August 12, 2026. Reviewed by Kevin D. Klagge, Esq., Fla. Bar No. 99502. Attorney Kevin Klagge represents families, businesses, and international clients in estate and tax planning, business structuring, and international law, with a focus on Florida legal tools. He litigates estate and business issues in court. This page and the letters it generates are general information based on federal and Florida law and each bureau's published procedures, not legal advice, and using them does not create an attorney-client relationship. Bureau addresses and procedures change, so confirm current details before mailing.