Debt collection, identity theft and imposter scams were the most common categories of consumer complaints received by the Federal Trade Commission’s Consumer Sentinel Network in 2015, according to the agency’s new data book.

While collection complaints rose to the top spot among complaint categories, the report notes that this was due largely to a surge in complaints contributed by a data contributor that collects complaints via a mobile app. This change caused a spike in complaints related to unwanted debt collection mobile phone calls.

Identity theft complaints were the second most reported, increasing more than 47% from 2014 on the back of a massive jump in complaints about tax identity theft from consumers.

Identity theft complaints had been the top category for the previous 15 years. Imposter scams – in which scammers impersonate someone else to commit fraud - remained the third-most common complaint in 2015.

"We recognize that identity theft and unlawful debt collection practices continue to cause significant harm to many consumers," said Jessica Rich, director of the FTC’s Bureau of Consumer Protection. "Steps like the recent upgrade to IdentityTheft.gov and our leadership of a nationwide initiative to combat unlawful debt collection practices are critical to our ongoing work to protect consumers from these harms."

In January, the FTC announced the new version of IdentityTheft.gov, which now allows consumers the ability to create a personalized identity theft recovery plan.

Throughout 2015, the FTC ramped up enforcement against companies violating laws protecting consumers from illegal debt collection practices.

The agency touted the federal-state-local initiative (Operation Collection Protection) to combat the problem, leading 70 partners to bring more than 130 actions. In 2015, the FTC also directly filed 12 actions against 52 defendants for illegal debt collection practices, permanently banned 30 companies and individuals from the industry and obtained nearly $94 million in judgments against debt collectors.

The Consumer Sentinel Network data book is produced annually using complaints received by the FTC’s Consumer Sentinel Network. That includes not only complaints made directly by consumers to the FTC, but also complaints received by state and federal law enforcement agencies, national consumer protection organizations and non-governmental organizations.

The data book includes both national statistics as well as a state-by-state listing of top complaint categories in each state and a listing of states and metropolitan areas that generated the most complaints per capita.

In 2015, the network collected 3,083,379 total consumer complaints. Florida, Georgia and Michigan were the top three states for fraud and other complaints, while Missouri, Connecticut and Florida were the top three states for identity theft complaints.

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