Robin Thicke and Paula Patton are the latest celebrities to fall foul of the IRS, with reports circulating the couple owe nearly half a million dollars in back taxes.

According to the Detroit News, documents filed at the LA County Recorder's Office, a tax lien was filed against the celebrity pair for $492,583.

A spokesperson has claimed neither party realised the amount the owed, assuring reporters: "They were just made aware of the issue and it is being taken care of immediately."

The long-term couple shouldn't be too strapped for cash - Patton recently starred in the half-billion grossing Mission Impossible: Ghost Protocol and last year Thicke dropped his fifth studio album Love After War.

Robin Thicke revealed some intimate details about the pair's love life last month, claiming, "I try to get her into the double-digit orgasms as much as possible."

Robin Thicke & Paula Patton Look Smitten At Mission: Impossible Premiere...