diff --git a/api/src/opentrons/protocol_api/labware.py b/api/src/opentrons/protocol_api/labware.py
index bb8a094e4c2..98ec5c7308d 100644
--- a/api/src/opentrons/protocol_api/labware.py
+++ b/api/src/opentrons/protocol_api/labware.py
@@ -115,8 +115,23 @@ def parent(self) -> Labware:
     @property
     @requires_version(2, 0)
     def has_tip(self) -> bool:
-        """Whether this well contains a tip. Always ``False`` if the parent labware
-        isn't a tip rack."""
+        """Whether this well contains an unused tip.
+
+        From API v2.2 on:
+
+        - Returns ``False`` if:
+
+          - the well has no tip present, or
+          - the well has a tip that's been used by the protocol previously
+
+        - Returns ``True`` if the well has an unused tip.
+
+        Before API v2.2:
+
+        - Returns ``True`` as long as the well has a tip, even if it is used.
+
+        Always ``False`` if the parent labware isn't a tip rack.
+        """
         return self._core.has_tip()
 
     @has_tip.setter