Federal disclosures on Saturday provided a first glimpse of the money race between the presidential candidates for 2024, showing who has amassed the most campaign cash so far.

Former President Donald J. Trump leads his party with $22.5 million in cash on hand at the end of June, though this is an incomplete picture of the funds that can be used to advance his candidacy. Mr. Trump uses multiple fund-raising committees and is supported by a super PAC that can raise and spend unlimited sums on his behalf. These groups do not have to file financial reports until the end of the month.

Senator Tim Scott of South Carolina, another contender for the Republican nomination, followed closely behind, with $21 million in his campaign coffers, including money transferred from his Senate campaign.

President Biden had $20.1 million in cash at the end of June, but he reported raising more money than Mr. Trump. As an incumbent, Mr. Biden is also able to leverage funds raised by his party, which also reported a large fund-raising haul.

Gov. Ron DeSantis of Florida took in about $20 million this quarter, mostly from big-dollar contributions. He spent nearly $7.9 million of it, which is a “burn rate” of about 40 percent — on the high end compared with the other Republican candidates.

Former Vice President Mike Pence, who entered the race on June 5, raised just $1.2 million, a notably low figure.

The total amounts raised that campaigns report include personal loans and contributions from candidates to their own campaigns. Gov. Doug Burgum of North Dakota, a Republican, loaned himself $10 million of the $11.8 million he reported raising in the second quarter.

Another Republican, the multimillionaire entrepreneur Vivek Ramaswamy, reported a $7.7 million haul for the quarter — mostly his own money.

The numbers reported by candidates’ campaigns are incomplete tallies of their financial support.

Candidates can form fund-raising vehicles beyond their official campaign committees, and they are increasingly doing so earlier on.

Here’s a guide to the often overlapping patchwork of committees.

Campaign Committee

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Campaign Committee

A candidate’s official campaign account. Any money a candidate directly spends on a run must come out of here. Donations to campaigns are increasingly funneled through joint fund-raising committees.

DONATIONS FROM:

Joint Fund-Raising

Committees

Political parties

PACs

$5,000 limit

$5,000 limit

Funds from

candidate

Individuals

Unlimited

contributions

$3,300 limit

Campaign Committee

Limits are for the primary election.

Joint Fund-Raising Committees

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Joint Fund-Raising Committees

Allow two or more political committees to raise money together and pass the proceeds along to their member committees.

DONATIONS FROM:

Other committees

(leadership PACs,

political parties, etc.)

Individuals

Joint Fund-Raising Commmittee

Other committees

(leadership PACs,

political parties, etc.)

Campaign

Committees

Leadership PACs

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Leadership PACs

Sponsored by politicians and designed as a way to gain influence by donating to other candidates. Generally, a leadership PAC cannot spend money directly on the candidate’s campaign. Beyond that, there are no explicit restrictions.

DONATIONS FROM:

Other PACs

Individuals

$5,000 limit

$5,000 limit

Leadership PAC

$5,000 limit

$5,000 limit

Other PACs

Campaign

Committees

Limit to campaign committees is for the primary

election. Other limits are for each year.

Super PACs

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Super PACs

Cannot coordinate with the candidate or donate to the campaign, but they can spend money supporting the candidate, such as on advertisements.

DONATIONS FROM:

Very rich

individuals

Organizations

and companies

Unlimited

contributions

Super PAC

For Republicans, these early filings are particularly important. Candidates will need to prove they have at least 40,000 unique donors in order to qualify for next month’s G.O.P. debate, and some have gone to great lengths to try to reach this threshold. Mr. Burgum has used gimmicks like offering $20 gift cards to the first 50,000 people to donate at least $1 to his campaign in hopes of getting onto the debate stage.

The total number of donors to each campaign is not included in the reports, but more detailed filings later this month can be used to estimate how close candidates are getting to the threshold.

Beyond campaign committees, below are the other committees associated with the candidates. Those without additional related committees are not listed.