Not a single Brisbane resident has taken up a state government cash offer to leave Brisbane during next month's G20 summit.

The government, through the G20 (Safety and Security) Act, last year offered a $200 incentive to residents in the restricted area to leave town for the duration of the leaders' summit.

Suitcases to go unused... No Brisbane residents have taken up the government's cash offer to take a holiday during G20.

Almost a year ago, last October, Police Minister Jack Dempsey said he expected "less than a handful" of people to take advantage of the cash incentive.

And it appears he was right.