Shane (33), his wife Gillian and their three children moved out of the plush mansion in Carraroe, Sligo, to Surrey, England.
He declared bankruptcy in the Kingston-upon-Thames County Court, London. The bankruptcy could have lasted up to 12 years in Ireland but will last just one year if he complies with the rules.
At the height of the Celtic Tiger, Mr Filan expanded into property development with his brother Finbarr.
Their company Shafin Developments owes more than €5.5m to Ulster Bank and Bank of Ireland, and last month his property-development company went into receivership.
The firm had taken out a series of large loans to construct a 90-home estate in Dromahair, Co Leitrim.
But only half of the planned number were actually constructed and many of these were sold for less than they cost to build.
Shane's name has also been published on Britain's insolvency register.