Parents who have split up will have to pay the Government "4p in the pound" if they need to use the new Child Maintenance Service (CMS) because they cannot be civil enough to come to informal arrangement themselves, the minister for pensions said.
Steve Webb assured Good Morning Britain the new system was "much more effective" than the previous Child Support Agency.
"If the Dad for example, gets a pay rise, we automatically go to tax records, update the figures so maintenance will go up every year there is a pay rise. That will help parents with children."
More top news
The government says it won't ever completely decriminalise drugs but has it worked for other countries?
The owners of Merseyside's oldest pub have released the note written to them by thieves who raided and flooded their building.
Apple chief executive Tim Cook has publicly came out as gay in an article he wrote for a business magazine.