This book really reminds me of The Reposession Mambo (republished and made into a movie as Repo Men), which I enjoyed. The author's Canadian but currently lives in Japan.
In a near future Tokyo, every action-from blinking to sexual intercourse-is intellectual property owned by corporations that charge licensing fees. A BodyBank computer system implanted in each citizen records their movements from moment to moment, and connects them to the audio-visual overlay of the ImmaNet, so that every inch of this cyber-dystopian metropolis crawls with information and shifting cinematic promotainment.
Amon Kenzaki works as a Liquidator for the Global Action Transaction Authority. His job is to capture bankrupt citizens, remove their BodyBank, and banish them to BankDeath Camps where they are forever cut off from the action-transaction economy. Amon always plays by the rules and is steadily climbing the Liquidation Ministry ladder.
With his savings accumulating and another promotion coming, everything seems to be going well, until he is asked to cash crash a charismatic politician and model citizen, and soon after is charged for an incredibly expensive action called "jubilee" that he is sure he never performed. To restore balance to his account, Amon must unravel the secret of jubilee, but quickly finds himself asking dangerous questions about the system to which he's devoted his life, and the costly investigation only drags him closer and closer to the pit of bankruptcy.