Those waiting for a peek at Gov. Sarah Palin’s personal finances are going to have to wait just a bit longer because of an agreement between the Federal Election Commission and the McCain campaign.

Federal law requires vice-presidential candidates to file a financial disclosure statement within 30 days of their nomination. But the F.E.C. and the McCain campaign differed over the date of Ms. Palin’s nomination.

The McCain campaign has said it believes the 30-day deadline ends on Oct. 3, 30 days after her nomination at the Republican National Convention on Sept. 4. The F.E.C. had said that the 30-day period began on Aug. 29, when Senator John McCain named her as his running mate and changed the name of his campaign fund to the McCain-Palin Compliance Fund. By the commission’s calculations, the filing was due Sept. 29.

So, letters between the campaign and the F.E.C. ensued. Trevor Potter, the McCain campaign’s general counsel, also said Ms. Palin needed extra time to prepare since she had never run for federal office before.