A disgruntled Brisbane transport user apparently went to extraordinary lengths to take advantage of the new Go Card fare structure, but says his $10 profit wasn't the point of the exercise.

Dutton Park resident Michael Swifte said he shelled out nearly $30 when he bought a new Go Card ($5) and caught 39 buses and one train on Monday ($24.40) to qualify for free unlimited travel for the rest of the week.

Brisbane transport user Michael Swifte had a busy Monday catching 39 buses and a train to prove a point. Credit:Daniel Hurst

The community development worker said he then sold the smartcard for $40 to a backpacker, who would be able to use it to make free journeys across the southeast Queensland network until Sunday.

The state government introduced its new free-travel-after-10-journeys-in-a-week incentive on Monday, at the same time as it increased southeast Queensland bus, train and ferry fares by 15 per cent for the third time in three years.