How to Set Up Fingerprint Login on Your Mac

Fingerprint login on a Mac uses Touch ID, a sensor built into newer MacBooks that reads your fingerprint instead of requiring you to type a password every time

Touch ID is available on MacBook Pro models from 2015 onward and MacBook Air models from 2018 onward. The sensor sits in the power button on the top right of the keyboard. When you set it up, your fingerprint data stays encrypted on your Mac — Apple does not store it on their servers or share it with other apps unless you explicitly allow it.

Setting up Touch ID takes about two minutes and involves opening System Settings, navigating to the Touch ID section, and scanning your finger multiple times so the sensor learns your fingerprint from different angles. Once it is set up, you can use your fingerprint to unlock your Mac, approve purchases in the App Store, and authorize password changes in certain apps.

Key Takeaways

Touch ID is built into the power button on MacBook Pro (2015 and later) and MacBook Air (2018 and later), and stores your fingerprint data only on your device.
You can register up to five different fingerprints on one Mac, which is useful if multiple people use the same computer or if you want a backup finger.
After you set up Touch ID for login, you still need to enter your password once per day or after restart for security reasons — Touch ID alone cannot unlock your Mac indefinitely.
You can turn off Touch ID for specific functions (like App Store purchases) while keeping it on for login, giving you control over where your fingerprint is used.

Check whether your Mac has Touch ID

Not all Macs have Touch ID. The feature is only available on MacBook Pro models from 2015 onward and MacBook Air models from 2018 onward. If your Mac is older than those years, you will not see a Touch ID option in System Settings.

To check your Mac model and year, click the Apple menu in the top left corner of your screen, then select "About This Mac". Look for the model name and year. If you see "MacBook Pro 2015" or later, or "MacBook Air 2018" or later, your Mac has Touch ID built into the power button.

Open System Settings and navigate to Touch ID

Click the Apple menu in the top left corner, then select "System Settings" (on macOS Ventura and later) or "System Preferences" (on older versions). In the search box at the top, type "Touch ID" and click the Touch ID result that appears.

If you are using an older version of macOS, you may need to scroll through the sidebar to find it. On macOS Ventura and later, Touch ID appears under the "General" section when you search for it. You will see options to add a fingerprint and manage which apps can use Touch ID.

Add your first fingerprint

In the Touch ID settings window, click "Add a Fingerprint" or the plus button next to "Fingerprints". A dialog box will appear asking you to place your finger on the power button. Rest the side or tip of your finger lightly on the power button — do not press it down hard.

The sensor will scan your finger and ask you to lift it and place it again in a slightly different position. Repeat this process five to ten times until the system says the scan is complete. The Mac is learning your fingerprint from different angles and pressures so it will recognize you reliably. Once the scan finishes, you will see a confirmation message and the option to name this fingerprint (for example, "Right Index Finger").

Enable Touch ID for login

After you add your first fingerprint, you will see a checkbox next to "Use Touch ID to unlock your Mac". Check this box to enable fingerprint login. You will be asked to enter your Mac password once to confirm the change.

Once this is enabled, the next time your Mac locks or you restart it, you can use your fingerprint to unlock it instead of typing your password. However, macOS requires you to enter your password at least once every 24 hours for security reasons. If you have not used your password in a day, the system will ask for it before accepting your fingerprint.

Add additional fingerprints (optional)

You can register up to five fingerprints on one Mac. This is useful if you want a backup finger in case one is injured, or if multiple people share the same computer. Each fingerprint can be set up for login independently.

To add another fingerprint, go back to Touch ID settings and click "Add a Fingerprint" again. Follow the same scanning process. You can name each fingerprint differently so you know which finger is which. If you remove a fingerprint later, click the fingerprint in the list and click the minus button.

Control which apps can use your fingerprint

Below the fingerprint list in Touch ID settings, you will see toggles for "App Store and Apple Books", "Apple Pay and Wallet", and other services. These control where your fingerprint can be used beyond login. You can turn any of these off if you prefer to enter your password for those specific actions instead.

For example, you might want to keep Touch ID on for login but turn it off for App Store purchases if you share your Mac with others. Each toggle is independent, so you have full control over which functions use your fingerprint and which require your password.

Frequently Asked Questions

What happens if my fingerprint does not work after I set it up?

The most common reason is that your finger is too dry or too wet. Try washing your hands, drying them completely, and scanning again. If the sensor is dirty, gently wipe the power button with a soft, dry cloth. If it still does not work, you can always fall back to your password to unlock your Mac.

Can I use Touch ID if I have a cut or scar on my finger?

Yes. Register a different finger, or scan the same finger multiple times so the sensor learns it from different angles. Scars and temporary cuts usually do not prevent recognition, but if a finger is too damaged, the sensor may struggle. Having multiple fingerprints registered gives you a backup option.

Is my fingerprint data safe on my Mac?

Your fingerprint is encrypted and stored only on your Mac's find enclave — a separate chip that Apple designed specifically to protect sensitive data. Apple cannot see your fingerprint, and it is not sent to Apple's servers. If someone steals your Mac, they cannot extract your fingerprint data from it.

Do I still need to remember my password if I use Touch ID?

Yes. macOS requires you to enter your password at least once every 24 hours, and always after a restart. You also need your password to change your Apple ID, reset your password, or unlock certain settings. Keep your password written down or stored in a password manager.

Can I use Touch ID on an external Mac keyboard?

No. Touch ID only works with the built-in keyboard on your MacBook. If you connect an external keyboard or mouse to your Mac, you will need to use your password to unlock it. The Touch ID sensor is physically part of the MacBook's power button and cannot be replicated on external hardware.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.