Youth and community nonprofits / New York / Larchmont

Parent-teacher group (PTA or PTO)

Mamaroneck Schools Foundation Inc

A tax-exempt nonprofit in Larchmont, New York, classified by the IRS as parent-teacher group (pta or pto). For the year ending Jun 2025 it reported $278,301 in revenue and $270,530 in expenses.

Data as of November 8, 2026Markdown copyJSON data

What it says it does

“Grants awarded to benefit students of the mamaroneck union free schools”From the organization's Form 990 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): Larchmont, New York 10538

EIN: 13-3882939

Tax status: 501(c)(3), eligible to receive tax-deductible donations; IRS-recognized as tax-exempt since 1996, per IRS records posted October 13, 2026.

Revenue on its latest IRS filing: $278,301 (year ending Jun 2025)

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

Mamaroneck Schools Foundation Inc finances

From the annual returns the group files with the IRS (Form 990, or the shorter Form 990-EZ for smaller groups), 3 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.

Revenue and expenses by yearJun 2021: revenue $263,030, expenses $269,498; Jun 2023: revenue $265,351, expenses $147,016; Jun 2025: revenue $278,301, expenses $270,530 Total revenueTotal expenses $263K$269KJun '21$265K$147KJun '23$278K$271KJun '25
Year endingJun 2021Jun 2023Jun 2025
Total revenue$263,030$265,351$278,301
Total expenses$269,498$147,016$270,530
Total assets$744,426$918,105$1,144,303
Liabilities$71,186$65,084$98,503
Net assets$673,240$853,021$1,045,800
Employees111
Volunteers484826
IRS formForm 990Form 990Form 990

Where the money goes, year ending Jun 2025

Expense splitPrograms 91%, Management and general 6%, Fundraising 3%

Where the money comes from, year ending Jun 2025

Revenue sourcesGifts and grants 90%, Investment income 10%

People: 1 employee and 26 volunteers reported for the year ending Jun 2025. Counts only; BackPR does not publish names of officers or staff.

Revenue trend: Steady. Revenue went from $263,030 (year ending Jun 2021) to $278,301 (Jun 2025), about +1% 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. New York nonprofit.

How it compares

The only pta and pto nonprofit in Larchmont in our directory.

Size: revenue of $278,301 is higher than roughly 70 to 80% of the 108 PTAs and PTOs in New York that report revenue to the IRS (the city count above also includes groups with none). The median is $82,318.

Revenue compared with similar groupsRevenue of $278,301 compared with PTAs and PTOs in New York: the middle 80% earn between $21,191 and $625,292, the median is $82,318. 10th pct$21.2Kmedian$82.3K90th pct$625K This group $278K

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 New York groups of this type (PTA and PTO, which covers several IRS activity codes). Size only, not a rating.

Around Larchmont and its county

Westchester County, New York: the Census Bureau estimates about 208,740 children under 18 (July 1, 2024). This directory lists 165 youth and community nonprofits with a mailing ZIP code in the county, about 0.8 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.

Licensed programs in Larchmont

5 licensed child care centers, 3 school-age programs are in state licensing records and listed in the BackPR finder. The examples below are not related to this organization.

school-age program

Boys and Girls Club of New Rochelle Inc

Larchmont, NY

State record

school-age program

Boys and Girls Club of New Rochelle Inc

Larchmont, NY

State record

school-age program

Boys and Girls Club of New Rochelle Inc

Larchmont, NY

State record

licensed child care center

ANNA & JACK'S TREEHOUSE OF LARCHMONT

Larchmont, NY

State record

licensed child care center

Discovering Me Day Care Center Inc.

Larchmont, NY

State record

licensed child care center

Healthy Kids Extended Day Program Inc.

Larchmont, NY

State record

New York background check rules for youth programs · How BackPR works for PTAs and PTOs

Questions about Mamaroneck Schools Foundation Inc

What is Mamaroneck Schools Foundation Inc's EIN?

Mamaroneck Schools Foundation Inc's EIN (Employer Identification Number) is 13-3882939. 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 Mamaroneck Schools Foundation Inc a nonprofit?

Yes. The IRS lists Mamaroneck Schools Foundation Inc in Larchmont, New York as tax-exempt under section 501(c)(3), recognized since 1996. 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 Mamaroneck Schools Foundation Inc tax-deductible?

Yes, the IRS lists gifts to Mamaroneck Schools Foundation Inc 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 Mamaroneck Schools Foundation Inc do?

In its own words on its Form 990 for the year ending Jun 2025: "Grants awarded to benefit students of the mamaroneck union free schools" The IRS classifies it as: Parent-teacher group (PTA or PTO).

How much money does Mamaroneck Schools Foundation Inc take in?

For the year ending Jun 2025, Mamaroneck Schools Foundation Inc reported total revenue of $278,301 and total expenses of $270,530 on its Form 990 (IRS Form 990 e-file data).

Do you run this organization?

You can add your programs, season dates, ages, prices, registration link and logo to this page, or ask us to remove it. BackPR's free plan for 501(c)(3)s handles online registration, payments, waivers and attendance. No subscription and no BackPR fee on what families pay (card processing fees from Stripe still apply).

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Free forms for PTAs and PTOs

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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