Youth and community nonprofits / California / San Marcos

Parent-teacher group (PTA or PTO)

San Marcos High School PTO

A tax-exempt nonprofit in San Marcos, California, classified by the IRS as parent-teacher group (pta or pto). For the year ending Jun 2025 it reported $19,478 in revenue and $24,826 in expenses.

Data as of November 8, 2026Markdown copy JSON data

What it says it does

“To enhance the academic and social experience of students and staff at san marcos high school. Engage in all activites relating to fundraising and other support for the students of san marcos high school.”From the organization's Form 990-EZ for the year ending Jun 2025, as written (including spelling); all-capital text shown in normal capitalization.

IRS facts

Type: Parent-teacher group (PTA or PTO) (IRS activity code B94)

Mailing city (IRS): San Marcos, California 92078

EIN: 20-0258130

Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 2003, per IRS records posted October 13, 2026.

Revenue on its latest IRS filing: $19,478 (year ending Jun 2025)

Check its status on IRS Tax Exempt Organization Search · Filings on ProPublica Nonprofit Explorer

San Marcos High School PTO finances

From the annual returns the group files with the IRS (Form 990, or the shorter Form 990-EZ for smaller groups), 2 filed years. Net assets are what it owns minus what it owes; management and general is office, admin and insurance cost. A dash means not reported (the short form does not ask for employees or volunteers). Each figure links to that year's return. A year is left out when no return is in the IRS e-file data; that does not mean the group was inactive.

Year ending	Jun 2021	Jun 2025
Total revenue	$14,448	$19,478
Total expenses	$40,407	$24,826
Total assets	$51,352	$79,028
Liabilities	$0	-
Net assets	$51,352	$79,028
IRS form	Form 990-EZ	Form 990-EZ

Where the money goes, year ending Jun 2025

Programs $13,129 (53% of $24,826)

Small groups file the shorter Form 990-EZ, which reports program spending but not the management and fundraising split.

Where the money comes from, year ending Jun 2025

Gifts and grants $4,787 (25%)
Program fees $14,660 (75%)
Investment income $31 (0%)
Other $0 (0%)

Revenue trend: Steady. Revenue went from $14,448 (year ending Jun 2021) to $19,478 (Jun 2025), about +8% a year.

Growth label: we compare total revenue on the oldest and the newest return shown above. Growing means revenue rose by more than 10% a year on average, Shrinking means it fell by more than 10% a year, and Steady means a change between -10% and +10% a year. The rate is the compounded yearly average between the two returns, so it hides ups and downs in between (see the table). We only label groups with returns at least a year apart and at least $5,000 of revenue on the oldest one. This is our own calculation, not an IRS rating or a judgment of quality.

Source: IRS Form 990 Series Downloads (the returns open on ProPublica Nonprofit Explorer, which republishes the IRS files). Figures are as the organization filed them. California nonprofit.

How it compares

6 of 10 PTAs and PTOs in San Marcos when sorted from largest to smallest revenue. This shows size only, not quality. Groups with no reported revenue are listed last.

Size: revenue of $19,478 is in the bottom 10% of the 674 PTAs and PTOs in California that report revenue to the IRS (the city count above also includes groups with none). The median is $77,557.

Our analysis of the IRS Business Master File (posted October 13, 2026), using each group's latest reported revenue. Groups are sorted by revenue and split into ten equal bands, using all California groups of this type (PTA and PTO, which covers several IRS activity codes). Size only, not a rating.

Around San Marcos and its county

San Diego County, California: the Census Bureau estimates about 671,593 children under 18 (July 1, 2024). This directory lists 1,271 youth and community nonprofits with a mailing ZIP code in the county, about 1.9 per 1,000 children. The count includes PTAs, arts and day care groups, so it is not a measure of places for kids.

This group's ZIP code is matched to the county that holds most of its area, so counts are approximate. County figures come from the Census Bureau's Vintage 2024 population estimates.

What is San Marcos High School PTO's EIN?

San Marcos High School PTO's EIN (Employer Identification Number) is 20-0258130. It is the nine-digit number the IRS uses to identify the organization. Source: IRS Exempt Organizations Business Master File posted October 13, 2026.

Is San Marcos High School PTO a nonprofit?

Yes. The IRS lists San Marcos High School PTO in San Marcos, California as tax-exempt under section 501(c)(3), recognized since 2003. This is from the IRS Business Master File posted October 13, 2026. Status can change, so check its current status on the IRS Tax Exempt Organization Search before you donate.

Are donations to San Marcos High School PTO tax-deductible?

Yes, the IRS lists gifts to San Marcos High School PTO as tax-deductible (IRS Business Master File posted October 13, 2026). How much you can deduct depends on your own taxes, and this is not tax advice. Check its current status on the IRS Tax Exempt Organization Search before you donate.

What does San Marcos High School PTO do?

In its own words on its Form 990 for the year ending Jun 2025: "To enhance the academic and social experience of students and staff at san marcos high school. Engage in all activites relating to fundraising and other support for the students of san marcos high school." The IRS classifies it as: Parent-teacher group (PTA or PTO).

How much money does San Marcos High School PTO take in?

For the year ending Jun 2025, San Marcos High School PTO reported total revenue of $19,478 and total expenses of $24,826 on its Form 990-EZ (IRS Form 990 e-file data).

Do you run this organization?

Tax-exempt since 2022 · EIN 47-1725335

Parent-teacher group (PTA or PTO)

San Marcos Middle School Parent Club

San Marcos, CA 92069

Tax-exempt since 1996 · EIN 33-0698809

All youth and community nonprofits in San Marcos

Source: IRS Exempt Organizations Business Master File, posted October 13, 2026. We list 501(c)(3) organizations whose IRS activity code is youth development, amateur sports, camps and recreation, parent-teacher groups, children's services, child day care or arts education. We show the city and ZIP code only, never a street address or contact person. A listing is not an endorsement.

Data as of November 8, 2026. Sources: IRS Business Master File (posted October 13, 2026), IRS Form 990 series e-file data, U.S. Census Bureau population estimates (July 1, 2024), state child care licensing records in the BackPR finder. Growth labels, ranks and percentiles are BackPR's own calculations.

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