Mohammed Osman, from Walsall, was sentenced to 15 years in prison in September for drug dealing and possessing a gun.
Raids were carried out at his home in Beacon Street as well as a house on Moncrieffe Street he was linked to in April last year.
A total of 2.5kg of heroin valued at £67,000 was seized, along with almost £10,000 in cash and another £36,000 – along with CS Spray, and a gun hidden in his cooker.
Now officers from West Midlands Police have secured a confiscation order at Wolverhampton Crown Court against the offender for £146,356.68.
It means the £46,000 found at both addresses will be kept by the force – with the rest of the debt hanging over him when he is eventually freed.
Officers can go back to strip him of any cash or assets he has until the full amount is repaid.
Detective Constable Rob Gough from the force's economic crime unit said: "We’ve delved back into Osman’s bank records over several years to identify any suspicious credits.
"He was not able to account for deposits totalling £33,411 − and as he can’t show that money has been accrued legitimately it’s considered ill-gotten gains through crime or drug dealing.
"The total value of the drugs we recovered was just over £67,000 − which means the Confiscation Order we secured was more than £146,000."
"Our investigation isn’t over and we will continue probing any money or assets linked to him. It’s important we show that crime doesn’t pay and that we will work to strip offenders of cash or property they have gained through crime."
Osman was jailed at Wolverhampton Crown Court for 15 years – nine years for drugs supply and six for gun possession – after admitting all counts against him.