Some good ones:
What's the definition of a good tax accountant?
Someone who has a loophole named after him
Why did God invent economists?
So accountants could have someone to laugh at.
What's the definition of unlikely?
A photo-spread in Playboy titled 'The World's Top Accountants - Nude!'.
How do you drive an accountant completely insane?
Tie him to a chair, stand in front of him and fold up a road map the wrong way.
The accountant was visiting the Museum of Natural History and said to the person standing next to him, "That dinosaur is two billion years and ten months old."
"How did you get such exact information?"
"I was here ten months ago and the guide said the dinosaur was two billion years old."
What do you call an accountant without a spreadsheet?
Lost
If an accountant's wife can't get to sleep, what does she say?
"Tell me about work today, dear"
How many auditors does it take to change a light bulb?
How many did it take last year?
Who was the first accountant?
Adam. He got interested in figures, turned the first leaf, made the first entry, lost interest after withdrawal, buggered up the monthly accounts and raised the first liability.
An accountant is having a hard time sleeping and goes to see his doctor.
"Doctor, I just can't get to sleep at night."
"Have you tried counting sheep?"
"That's the problem - I make a mistake and then spend three hours trying to find it."
Accountant after reading nursery rhymes to his young child:
"No, son. When Little Bo Peep lost her sheep that wouldn't be tax deductible, but I like your thinking".
Enjoy