The actress filed a petition under her given name Martine Kimberley Sherri Ponting at Kingston-Upon-Thames County Court, Credit Today reports.
KPMG have been appointed McCutcheon's trustees and she will be discharged from bankruptcy on January 2, 2014.
KPMG's David Standish, who was appointed joint trustee in bankruptcy of McCutcheon by the Secretary of State on January 24, said: "Ms McCutcheon petitioned for her own bankruptcy at Kingston-Upon-Thames County Court.
"We are now responsible for administering her estate and are in the process of establishing the individual's assets and liabilities; the largest creditor being Her Majesty's Revenue and Customs."
McCutcheon married her long-term boyfriend Jack McManus in Lake Como, Italy last September.
The actress is best known for her role as Tiffany Mitchell on EastEnders from 1995 to 1998.
She went on to have a number one single with 1999 track 'Perfect Moment', before returning to acting in several TV dramas.
McCutcheon played a supporting role in Richard Curtis's hit 2002 romantic comedy Love Actually.
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