Do not use an input mask.
Then the user can just enter 3 or 4 keystrokes, e.g.
3/21
and Access will default to this year.

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Allen Browne - Microsoft MVP. Perth, Western Australia.
Tips for Access users - http://allenbrowne.com/tips.html
Reply to group, rather than allenbrowne at mvps dot org.
>I have a date field and want to set the field format like "__/__/05", so
> that the user does not need to type the year each time.
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>
> SC