# San Marcos High School PTO

Parent-teacher group (PTA or PTO) nonprofit in San Marcos, California 92078. EIN 20-0258130. Data as of November 8, 2026.

Page: https://backpr.com/find/nonprofit/200258130-san-marcos-high-school-pto

## Mission (the organization's own words)

> 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.

Source: Form 990-EZ, year ending Jun 2025: https://projects.propublica.org/nonprofits/organizations/200258130/202543219349205749/full

## IRS facts

- Type: Parent-teacher group (PTA or PTO) (IRS activity code B94)
- Tax status: 501(c)(3), contributions deductible, recognized 2003
- Source: IRS Business Master File, posted October 13, 2026: https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf

## Finances (IRS Form 990 e-file data)

| Year ending | Revenue | Expenses | Assets | Net assets | Employees | Volunteers | Source |
|---|---|---|---|---|---|---|---|
| Jun 2025 | $19,478 | $24,826 | $79,028 | $79,028 | - | - | [Form 990-EZ](https://projects.propublica.org/nonprofits/organizations/200258130/202543219349205749/full) |
| Jun 2021 | $14,448 | $40,407 | $51,352 | $51,352 | - | - | [Form 990-EZ](https://projects.propublica.org/nonprofits/organizations/200258130/202240199349200309/full) |

Revenue sources, year ending Jun 2025: gifts and grants $4,787, program fees $14,660, investment income $31.

Growth label: **Steady** (about +8% a year, Jun 2021 to Jun 2025). 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.

## How it compares

- Revenue rank: 6 of 10 PTAs and PTOs in San Marcos.
- Revenue $19,478 is in the bottom 10% of 674 PTAs and PTOs in California; median $77,557.
- Source: IRS Business Master File, posted October 13, 2026; BackPR analysis.

## Local context

- San Diego County, California: about 671,593 children under 18 (U.S. Census Bureau, July 1, 2024): https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/counties/asrh/cc-est2024-agesex-all.csv
- 1,271 youth and community nonprofits in this directory in the county: 1.9 per 1,000 children.
- Licensed programs in San Marcos: 33 licensed child care centers, 1 school-age programs: https://backpr.com/find/california/san-marcos
- California rules: https://backpr.com/resources/states/california

## Questions

**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).

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Data as of November 8, 2026. Sources: IRS Business Master File, IRS Form 990 series e-file data, U.S. Census Bureau. No officer or staff names are published.