Santorum reports 4 years of tax returns
Washington - Republican US presidential candidate Rick Santorum released tax returns on Wednesday showing he and his wife earned around $1m annually in the last few years.
Santorum issued returns for the last four years, the most of the current Republican candidates who have tried to outdo each other in showing transparency about their taxes.
The former Pennsylvania senator and his wife earned $659 000 in 2007, $952 000 in 2008, $1.1m in 2009 and about $923 000 in 2010, according to the tax returns posted online by the Politico news organisation.
"For me, I felt very successful in, you know, making money. I also was very successful at paying taxes. I think our effective tax rates were somewhere between 25 and 28%," Santorum told CNN on Wednesday evening.
Santorum and his wife paid about $167 000 in taxes in 2007, around $262 000 in 2008, $310 000 in 2009, and $263 000 in 2010, Politico reported.
Former private equity executive Mitt Romney, by far the richest man in the 2012 White House race, released tax records in January indicating he will pay $6.2m in taxes on a total of $42.5m in income over the years 2010 and 2011.
Rival Newt Gingrich earlier revealed that he and his wife Callista paid $995 000 on an income of $3.1m in 2010.
According to the disclosures, Santorum's tax rate exceeds Romney but falls short of Gingrich.
Since losing his Senate seat in 2006, Santorum has secured a number of lucrative jobs, including working for a law firm, national media outlets, and serving as a consultant to healthcare and energy companies.
During his final year in the Senate, Santorum collected a congressional salary of $165 200. Since then, Santorum told CNN, he has earned "a little over $3m".
Santorum said he bought a "much bigger" house for his large family with seven children and its value dropped by 40%. He used his earnings to pay down the mortgage on that and also on expenses for his disabled daughter and on college for two others children.
Throughout the campaign, Santorum has called upon his humble roots to appeal to voters.