Validate Alphanumeric Data

How to validate an alphanumeric data entry like a permanent account number (PAN) in a text-box on a user-from with vba quickly and easily. A PAN has the following characteristics:

First Three Digits Alphabetic series running from AAA to ZZZ
Fourth Digit Status (I.e. P For Personal, C for Corporate, F for Firm, H for Hindu Undivided Family Etc.)
Fifth Digit First character of assessee’s Last Name/ Surname
Next 4 Digits Sequential Number running from 0001 to 9999
Last Digit Alphabetic Check digit

Watch the video below:

Here’s the complete VBA code to validate an alphanumeric data entry in a text-box quickly<

Private Sub CommandButton1_Click()
If TextBox1.Text Like “[A-Za-z][A-Za-z][A-Za-z][ABFGHJLPTabfghjlpt][A-Za-z]####[A-Za-z]” Then
MsgBox “Valid PAN entry”
Range(“A2”) = TextBox1.Text
MsgBox “Invalid PAN entry”
Exit Sub
End If
End Sub

Published by

Dinesh Kumar Takyar

Welcome to! My aim is to help you learn MS Excel including VBA. I always felt that a good way to learn something was to find solutions to problems in that domain. That is why I share these Excel videos with you. Mostly these are questions asked during my corporate training sessions. I've been training individuals and companies in computers since 1991. I did my B. Sc. (Vordiplom), M. Sc. (Diplom) and Ph.D. (Dr. rer. nat.) from Hamburg, Germany. The best thing about solving some of my visitor's questions is that I also gain new insights. For more Excel VBA solutions you may like to visit my YouTube channel: For a structured Excel VBA training course online you can visit:

One thought on “Validate Alphanumeric Data”

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