How to freeze your credit with TransUnion: a complete mailing-address guide

A credit freeze with TransUnion restricts access to your credit file and is one of the most effective ways to prevent new account fraud. This evergreen explainer walks you through when a freeze makes sense, the exact information TransUnion requires, and the reliable mailing address to submit your request. You will find step-by-step instructions, practical tips to strengthen your submission, expected timelines, and common questions about fees and lifts. Use this as a long-form reference you can return to whenever you need to place, remove, or update a security freeze.

When a credit freeze makes sense

A security freeze is best used when you want maximum control over who can access your TransUnion credit file. Unlike a fraud alert, which is temporary and often requires only one bureau, a freeze blocks new lenders from viewing your file entirely, preventing them from opening accounts in your name. Freezes are durable, remain in place until you request a lift or removal, and do not affect your credit score. They are especially helpful after a data breach, when recovering from identity theft, or if you simply want stronger everyday protection. Before you write to TransUnion, gather personal details such as your full name, current address, date of birth, Social Security number, and a copy of your government ID so your request can be processed accurately and quickly.

How a freeze differs from other tools

Understanding how a freeze compares to other options helps you choose the right one. A freeze blocks nearly all new credit inquiries, a fraud alert asks lenders to take extra steps to verify identity, and a credit lock is a similar tool often delivered through an app with a monthly fee. A freeze does not prevent access by existing creditors, account management, or background checks for employment and insurance where permitted by law. It also does not stop fraud on existing accounts, so monitoring statements and transaction alerts remains important. Choosing a freeze is usually a durable, no-cost choice for preventing new accounts, whereas alerts and locks suit different goals or preferences.

TransUnion credit freeze mailing address

To place or manage a security freeze by mail, use the following address. If you include instructions for relatives, note that they may need your full name and identifiers to locate your file on their behalf. When sending sensitive documents, consider certified mail with return receipt and keep copies of everything you submit.

What to include in your mailed request

• Your full name and current mailing address
• Date of birth and Social Security number (last four digits are helpful if you prefer partial disclosure)
• Current and recent addresses to help locate your file
• A copy of a government photo ID (e.g., driver’s license)
• A copy of a recent utility, phone, or bank statement showing your name and address (only if your ID does not clearly show your address)
• Your choice: place a freeze, lift a freeze for a temporary period, or remove a freeze permanently
• Sign and date the letter; include a daytime phone number or email if you want correspondence by mail

Fees, timelines, and what to expect

TransUnion generally does not charge a fee to place or remove a security freeze for consumers who are residents covered by applicable state laws that align with the federal baseline. If you previously froze your file, lifting a freeze for a specific period or permanently is also typically free. You should receive written confirmation of the action requested by mail; keep this for your records. If your request is incomplete, TransUnion may contact you to clarify, which can add days to processing. In most cases, a complete submission avoids avoidable delays.

Representative timelines (estimates, not guarantees)

These estimates reflect standard handling under normal circumstances and do not account for mail transit time or corrections required.

How to strengthen your submission

Incomplete or unclear requests are the most common causes of delays. Reduce the chance of follow-up by doing the following before you mail: verify that your name and address match your credit profile, include a complete signed request letter, and add copies (never originals) of identification and address proof. If you are acting for a family member, spell out their relationship, their full name, and your contact information. Consider sending documents via certified mail with return receipt to track delivery and maintain copies of every page you enclose. These habits reduce the need for resends and help ensure your freeze is in place when you expect it.

After the freeze is placed

Once TransUnion confirms the freeze, new lenders and most creditors will be unable to access your file without your express permission. You will still receive prescreened offers, account statements from existing creditors, and other unrelated mail. Monitor your statements and set calendar reminders if you scheduled a temporary lift. If you move, update your address with both creditors and the bureau to keep your file linked to the correct residence. Because freezes do not affect existing accounts, continue practicing regular fraud checks, such as reviewing statements and enabling transaction alerts wherever available.

Common questions about freezes

• Does a freeze affect my credit score? No. A freeze restricts access to your report but does not change your score.
• Is it free? Generally, yes, for most consumers in jurisdictions covered by federal and equivalent state laws. Confirm current policy on TransUnion’s official site if your situation is unusual.
• How long does it last once placed? Until you request a lift or removal. There is no automatic expiration for a security freeze.
• Can I freeze for relatives or minors? Yes, you can request a freeze on behalf of someone else; include proof of authority and identification as required.
• Do I need to lift the freeze to apply for credit or get my free annual report? No. Credit applications and free annual reports are not blocked by a freeze.

When you might not need a freeze

If you regularly apply for new credit and want faster approvals, a freeze may add friction each time a lender performs a hard inquiry. In those cases, a short fraud alert or selective lifts around known applications can be alternatives. If you are frequently denied credit or unsure of your information accuracy, review your report first and correct errors before adding a freeze. A freeze is most valuable when you want a consistently blocked file and are willing to plan small administrative steps around new applications.