"The Best Day of My Life" is the tenth episode of the webisode series The Office: The Accountants. It was written by Paul Lieberstein and Michael Schur and directed by Randall Einhorn. It aired on NBC.com on September 7, 2006.
Oscar and Kevin solve the mystery when they discover that Angela made a mistake and logged the same entry twice. Angela first doubts that she made the mistake but is forced to accept the truth when the alternative is claiming that she allowed someone else to make entries in her books. Angela quietly declares "case closed". Kevin gleefully notes, "This is the best day of my life."
|Season 2||The Accountants - Webisodes||Season 3|
|#01||The Books Don't Balance||#03||Meredith||#05||Someone in the Warehouse||#07||Things Are Getting Tense||#09||Michael's Office|
|#02||Phyllis||#04||Stanley||#06||The Memo||#08||You're Mean||#10||The Best Day of My Life|