Hosting

Airbnb Self Check-In: The Complete Guide for Hosts

Set up reliable Airbnb self check-in with lockboxes, smart locks, and keypads. Pros, cons, security tips, and the messages that make it seamless.

Updated June 22, 2026 2 min read

Self check-in is the single biggest quality-of-life upgrade for a host. No meeting guests, no key handoffs, no waiting around for a delayed flight. Done right, it is also more secure than a hidden key and more convenient for guests. It is now the norm: according to Lodgify, 68 percent of vacation rental hosts used smart locks in 2024 and nearly 74 percent always or frequently offer self check-in, and Airbnb reports that hosts who add self check-in earn about 13 percent more over the following year. Here is how to choose a method and run it well.

The main self check-in methods

MethodBest forWatch out for
Smart lock with keypadMost hosts, rotating codes per stayBattery life, WiFi or Bluetooth range
Lockbox with a keySimple, low cost, no power neededCodes that never change, sticky dials
Keypad deadbolt (offline)Reliability without WiFiSetting codes requires being on site
Building or smart-home systemApartments and condosGuest confusion, fob handoffs

Security best practices

  • Rotate the code between every stay. A unique code per guest is ideal.
  • Send the code at check-in time, not days in advance.
  • Keep a documented fallback: a second code or a lockbox in case the primary fails.
  • Never reuse one permanent code for months. That is how codes leak.

The 11 PM lockout

Even perfect hardware fails sometimes, and it always happens after dark. The difference between a one-star review and a non-event is whether someone answers immediately. Rezi replies to "I am locked out" in seconds and escalates to you only if it cannot solve it.

The messages that make self check-in seamless

Self check-in lives or dies on the instructions. Send a pre-arrival note with the address and arrival window, deliver the code and step-by-step entry at check-in time, and invite the guest to text the moment anything is unclear. See our check-in instruction templates, and learn how to automatically send the door code at the right moment.

Is Airbnb self check-in safe?
Yes, when you rotate codes between stays, send the code at check-in time, and keep a fallback. It is generally safer than a hidden key because you control who has the code and when.
What is the best lock for Airbnb self check-in?
A smart lock with a keypad that lets you set a unique code per stay is the most popular choice. If reliability without WiFi matters more, an offline keypad deadbolt is a solid pick.
How do guests get the code?
Send it by message at check-in time. Automating this, and answering the "what is the code again" follow-up, is exactly what an AI co-host handles.

Let Rezi handle the messages for you

Rezi answers every guest text and call in seconds, 24/7, in your voice. It sends check-in details on time and only pings you for what truly needs you.

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