US President Barack Obama's campaign and its Democratic allies raised $181m (€138m) in September for his re-election effort.
Mr Obama's campaign said via Twitter that 1,825,813 people donated to the campaign last month. Of that, 567,000 were new donors.
A vast majority of the donations - 98% - were $250 or less. The average contribution was $53.
Republican presidential candidate Mitt Romney's campaign has not yet released its September fundraising figures, which are also expected to be high.
A spokeswoman declined to say when the results would be made public.
Mr Obama's campaign and the Democratic National Committee raised more than $114m in August, just beating Mr Romney's $111m. That followed three months when Mr Romney out-raised the incumbent.
The Obama campaign hopes its fundraising success and a positive jobs report would shift attention from the president's lackluster debate performance on Wednesday against Mitt Romney, whose aggressive showing gave his own campaign a boost.
A Romney spokeswoman said his team had raised $12m online after the debate in less than 48 hours, with 60% of the money from first-time donors.