The Austin City Council will vote Thursday to add those changes to a city ordinance.
At least 300 other cities and counties have penalties for false alarms because "they're a huge problem," said Jim Cogswell, president of the Maryland-based False Alarm Reduction Association.
"In some communities, as many as 80 percent of homes have security systems, so even one false alarm for each is a drain on police and fire departments."
Austin police responded to 23,800 false alarms last year. Homeowners used to be charged $50 for six or more false alarms in a year.