Tax dodgers will be caught, the Australian Taxation Office has warned after nabbing and convicting 356 people in the third quarter of this year.
One person went to jail for five years.
Acting tax commissioner Jennie Granger says tax refund fraud continues to be a focus for the ATO, which uses technology, national and international networks and community intelligence to catch wrong doers.
"It is not a matter of if, but when we find you. Ask yourself: is doing the wrong thing really worth the risk?" Ms Granger said in a statement today.
During the September quarter, 356 people and 122 companies were prosecuted and convicted for taxation and superannuation offences, while 12 people received prison sentences during this period, ranging from two months to five years.
Ms Granger said a Sydney man with a background in commerce was recently sentenced to five years' jail for deliberately lodging 41 false income tax returns totalling $180,000.
"Even if penalties do not include jail time a criminal conviction will mean a permanent criminal record," she said.
"As well as disqualifying you from many kinds of employment this can impact on other areas of your life including restricting travel to some countries."
Dodgy tax statements don't have to be large scale to attract the tax office's attention.
Earlier this year, a Sydney fencing contractor who made false statements in his business activity statements was fined $18,000 and ordered to pay an additional $17,319 to the commissioner.
"Providing false or misleading information to the ATO is a criminal offence. If you do the crime, you will face the consequences, and they can be significant," Ms Granger said.