IS A SPEEDING TICKET DEDUCTIBLE
CAN A SOLE PROPRIETOR TAKE A DEDUCTION FOR A TICKET RECEIVED WHILE ON BUSINESS
CAN A SOLE PROPRIETOR TAKE A DEDUCTION FOR A TICKET RECEIVED WHILE ON BUSINESS

Non-deductible penalty.

No. He also can't deduct his legal fees from running over a kid while he was going from one business meeting to another at a high rate of speed.

Just deductible from your wallet not your tax return
The logic is that if it was deductible the tax law would be encouraging your client to break another law (traffic)


Look at the bright side - the tickets aren't deductible but if he has accumulated enough of them he will be able to deduct the higher insurance premiums that were generated from the tickets.