The deception shown by Denis McShane was "calculated and designed" a judge has said during the sentencing of the former Labour minister.
Mr Justice Sweeney told MacShane, who was sentenced to six months in prison, his dishonesty had been "considerable and repeated many times over a long period".
The ex-MP pleaded guilty to false accounting by filing 19 fake receipts for "research and translation" services, and subsequently used the money to fund a series of trips to Europe.
"You have no one to blame but yourself," the judge said.
The judge said MacShane had shown "a flagrant breach of trust" in "our priceless democratic system".
More top news
Actor Bill Murray has offered to pay for the mobile phones of two fans he allegedly threw from bar after they tried to take photos of him.
Inadequate pain medication means cancer patients who want to die at home have no choice but to go to hospital, charity says.
Nearly three quarters do not get paid for the extra work they do, including teaching lessons, according to survey.