The federal government is cranking up the gears in the crackdown on bikies who don't pay taxes.
The Australian Tax Office has issued notices to almost 200 tax-dodging outlaw motorcycle gang members with millions in unpaid obligations.
Eleven gangs had debts totalling nearly $4 million.
The crackdown is part of an ongoing operation led by Australian Federal Police to disrupt bikie gangs through their financial operations.
"We will ... use our full arsenal of capabilities to exploit every opportunity to target the highest risk (outlaw motorcycle gangs)," AFP Detective Superintendent Peter De Santo said on Wednesday