Lindsay Harkins, 45, formerly of West Princes Street, Helensburgh, Argyll and Bute, has had to surrender £92,268 as the result of a confiscation order at the High Court in Edinburgh.
He was part of a drugs gang responsible for cocaine with a street value of up to £40m being brought into the UK.
Harkins was convicted for the supply of cocaine that was imported from Spain into the UK via Prestwick, Glasgow and Newcastle airports, and sold in various locations throughout Greater Glasgow and Dumfries and Galloway.
He was also found guilty of dealing amphetamine in September 2011 and sentenced to more than nine years in jail.
Harkins' assets included cash seized, money in bank accounts and his share of equity in a property in Helensburgh.
Lindsey Miller, head of the serious and organised crime division, said: "Dealing in drugs is classed as a 'lifestyle offence', which allows us to investigate Harkins' income over the six years leading up to his arrest.
"Forensic accountants calculated £300,000 could not be legitimately accounted for and therefore constituted his 'criminal benefit'.
"The confiscation order for £92,268 represents the amount available to us at this time.
"If further assets belonging to Harkins come to light, the Crown can ask the court to recalculate the confiscation order up to the amount of benefit recorded."
Since 2003, the use of the Proceeds Of Crime Act in Scotland has allowed more than £60m to be recovered from criminals. The money is then used to fund activities for young people through the Scottish Government's CashBack For Communities programme.