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AMERICAN PHYSICAL SOCIETY

1 PHYSICS ELLIPSE, COLLEGE PARK, MD 20740-3841 | Tax-exempt since Jan. 1945
  • EIN: 13-1656610
  • Classification (NTEE)
    Professional Societies, Associations (Science and Technology Research Institutes, Services)
  • Nonprofit Tax Code Designation: 501(c)(3)
    Defined as: Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn’t provide athletic facilities or equipment), or the prevention of cruelty to children or animals.
  • Donations to this organization are tax deductible.
  • More Resources: ArrowGuideStar ArrowNational Center for Charitable Statistics

Tax Filings and Audits by Year

The IRS Form 990 is an annual information return that most organizations claiming federal tax-exempt status must file yearly. Read the IRS instructions for 990 forms.

If this organization has filed an amended return, it may not be reflected in the data below. Duplicated download links may be due to resubmissions or amendments to an organization's original return.

If you would like to download Form 990 document PDFs in bulk, the Internet Archive operates a mirror of the original bulk data.

Nonprofit organizations that spend $750,000 or more in Federal grant money in a fiscal year are required to submit an audit covering their finances and compliance. Some of these are program specific, while others, called “single audits,” look at the entire organization. Nonprofit Explorer has PDFs of these audits for some nonprofits for fiscal year 2016 and later. They’re provided by the Federal Audit Clearinghouse.

Fiscal year ending

Dec. 2016

Fiscal year ending Dec.

2016

PDF

990-T
Audit

Form 990 and audit documents available

Extracted filing data is not available for this tax period, but Form 990 and audit documents are available for download.

Fiscal year ending

Dec. 2015

Fiscal year ending Dec.

2015

PDF

990
990-T

Full Text

Raw XML

990

Total Revenue

$58,360,196

Total Functional Expenses $53,540,266
Net income $4,819,930
Notable sources of revenue Percent of total revenue
Contributions $6,708,181 11.5%
Program services $46,642,696 79.9%
Investment income $3,546,209 6.1%
Bond proceeds $0
Royalties $0
Rental property income $0
Net fundraising $0
Sales of assets $1,463,110 2.5%
Net inventory sales $0
Other revenue $0
Notable expenses Percent of total expenses
Executive compensation $1,547,933 2.9%
Professional fundraising fees $0
Other salaries and wages $18,643,930 34.8%
Other
Total Assets $176,674,743
Total Liabilities $38,395,781
Net Assets $138,278,962
Fiscal year ending

Dec. 2014

Fiscal year ending Dec.

2014

PDF

990
990-T

Full Text

Raw XML

990

Total Revenue

$56,694,660

Total Functional Expenses $51,407,941
Net income $5,286,719
Notable sources of revenue Percent of total revenue
Contributions $7,839,021 13.8%
Program services $43,020,379 75.9%
Investment income $3,489,868 6.2%
Bond proceeds $0
Royalties $0
Rental property income $0
Net fundraising $0
Sales of assets $2,345,392 4.1%
Net inventory sales $0
Other revenue $0
Notable expenses Percent of total expenses
Executive compensation $1,403,155 2.7%
Professional fundraising fees $0
Other salaries and wages $18,114,701 35.2%
Other
Total Assets $173,735,055
Total Liabilities $35,024,982
Net Assets $138,710,073
Fiscal year ending

Dec. 2013

Fiscal year ending Dec.

2013

PDF

990
990-T

Full Text

Raw XML

990

Total Revenue

$55,762,983

Total Functional Expenses $48,429,412
Net income $7,333,571
Notable sources of revenue Percent of total revenue
Contributions $6,300,517 11.3%
Program services $41,118,160 73.7%
Investment income $2,470,928 4.4%
Bond proceeds $0
Royalties $0
Rental property income $0
Net fundraising $0
Sales of assets $5,873,378 10.5%
Net inventory sales $0
Other revenue $0
Notable expenses Percent of total expenses
Executive compensation $883,286 1.8%
Professional fundraising fees $0
Other salaries and wages $17,378,497 35.9%
Other
Total Assets $167,976,513
Total Liabilities $34,511,253
Net Assets $133,465,260
Fiscal year ending

Dec. 2012

Fiscal year ending Dec.

2012

PDF

990
990-T

Raw XML

990

Total Revenue

$50,735,200

Total Functional Expenses $46,927,183
Net income $3,808,017
Notable sources of revenue Percent of total revenue
Contributions $6,233,296 12.3%
Program services $40,151,084 79.1%
Investment income $2,844,931 5.6%
Bond proceeds $0
Royalties $0
Rental property income $0
Net fundraising $0
Sales of assets $1,505,889 3.0%
Net inventory sales $0
Other revenue $0
Notable expenses Percent of total expenses
Executive compensation $859,449 1.8%
Professional fundraising fees $0
Other salaries and wages $16,877,270 36.0%
Other
Total Assets $149,222,852
Total Liabilities $39,632,891
Net Assets $109,589,961
Fiscal year ending

Dec. 2011

Fiscal year ending Dec.

2011

PDF

990

Raw XML

990

Total Revenue

$47,056,748

Total Functional Expenses $45,659,732
Net income $1,397,016
Notable sources of revenue Percent of total revenue
Contributions $5,058,618 10.8%
Program services $38,644,172 82.1%
Investment income $2,471,096 5.3%
Bond proceeds $0
Royalties $0
Rental property income $0
Net fundraising $0
Sales of assets $882,862 1.9%
Net inventory sales $0
Other revenue $0
Notable expenses Percent of total expenses
Executive compensation $834,853 1.8%
Professional fundraising fees $0
Other salaries and wages $0
Other
Total Assets $134,188,632
Total Liabilities $35,488,002
Net Assets $98,700,630
Fiscal year ending

Dec. 2010

Fiscal year ending Dec.

2010

PDF

990

Raw XML

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2009

Fiscal year ending Dec.

2009

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2008

Fiscal year ending Dec.

2008

PDF

990
990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2007

Fiscal year ending Dec.

2007

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2006

Fiscal year ending Dec.

2006

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2005

Fiscal year ending Dec.

2005

PDF

990
990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2004

Fiscal year ending Dec.

2004

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2003

Fiscal year ending Dec.

2003

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

Dec. 2002

Fiscal year ending Dec.

2002

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

Fiscal year ending

June 2002

Fiscal year ending June

2002

PDF

990

Form 990 documents available

Extracted filing data is not available for this tax period, but Form 990 documents are available for download.

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and PDFs of full Form 990 documents.

The summary data contains information processed by the IRS during the 2012-2016 calendar years; this generally consists of filings for the 2011-2015 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs of full Form 990 documents wherever possible. This consists of a separate release by the IRS of Form 990 documents processed by the agency through June 2016; these documents may contain filings as recent as the 2015 fiscal year.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

How to Research Tax-Exempt Organizations

We've created a guide for investigating nonprofits for those just getting started as well as for seasoned pros.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents requested and processed by Public.Resource.Org and ProPublica. We post bulk downloads of these documents at the Internet Archive.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for 2016 and later.