Republican presidential challenger Mitt Romney and his party together raised $40.1 million in April.
The figures put the likely GOP nominee's fundraising haul closer to the $43.6 million that President Barack Obama and the Democratic Party raised last month. Romney's campaign pulled in about $12.5 million in March.
April's reports provide the first fundraising tallies of the general election. Romney began raising cash in conjunction with the GOP last month.
The new fundraising totals don't include the hundreds of millions of dollars being spent by "super" political action committees that can raise and spend unlimited sums of cash.
Details financial reports from both campaigns are due at the Federal Election Commission by midnight Sunday.