Skip to content
ProPublica Donate

Mark Twain Foundation

Organization summary

Type of Nonprofit

Designated as a 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.

Summary charts: organization finances over time

Revenue
$90.1k (2024)

Expenses
$185k (2024)

Total Assets
$2.48M (2024)

Total Liabilities
$0 (2024)

Years with missing data
Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Oct.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$90,068
Expenses
$184,684
Net Income
-$94,616
Net Assets
$2,483,046
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $84,791
94.1%
Sales of Assets -$8,771
Other Income $14,048
15.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $140,754
76.2%
Compensation of Officers* $70,050
37.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,483,046
Total Liabilities $0
Net Assets $2,483,046
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $36,275 $0
Richard Watson (Co Trustee) $33,775 $0

Document Links

Fiscal Year Ending Oct.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$66,954
Expenses
$213,678
Net Income
-$146,724
Net Assets
$2,578,034
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $82,753
> 100%
Sales of Assets -$28,092
Other Income $12,293
18.4%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $192,217
90.0%
Compensation of Officers* $61,656
28.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,578,034
Total Liabilities $0
Net Assets $2,578,034
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $32,078 $0
Richard Watson (Co Trustee) $29,578 $0

Document Links

Fiscal Year Ending Oct.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$101,706
Expenses
$326,467
Net Income
-$224,761
Net Assets
$2,724,757
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $102,637
> 100%
Sales of Assets -$21,531
Other Income $20,600
20.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $274,838
84.2%
Compensation of Officers* $150,157
46.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,724,757
Total Liabilities $0
Net Assets $2,724,757
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $76,329 $0
Richard Watson (Co Trustee) $73,828 $0

Document Links

Fiscal Year Ending Oct.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$247,646
Expenses
$241,156
Net Income
$6,490
Net Assets
$2,949,582
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $61,533
24.8%
Sales of Assets $159,477
64.4%
Other Income $26,636
10.8%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $214,998
89.2%
Compensation of Officers* $72,337
30.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,949,582
Total Liabilities $0
Net Assets $2,949,582
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $37,419 $0
Richard Watson (Co Trustee) $34,918 $0

Document Links

Fiscal Year Ending Oct.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$118,281
Expenses
$171,276
Net Income
-$52,995
Net Assets
$2,943,863
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $78,971
66.8%
Sales of Assets $18,897
16.0%
Other Income $20,413
17.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $168,104
98.1%
Compensation of Officers* $2,500
1.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,943,864
Total Liabilities $1
Net Assets $2,943,863
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $2,500 $0
Richard A Watson (Co Trustee) $0 $0

Document Links

Fiscal Year Ending Oct.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$205,969
Expenses
$292,415
Net Income
-$86,446
Net Assets
$2,996,952
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $72,814
35.4%
Sales of Assets $106,489
51.7%
Other Income $26,666
12.9%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $284,276
97.2%
Compensation of Officers* $102,896
35.2%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,996,953
Total Liabilities $1
Net Assets $2,996,952
Compensation
Key Employees and Officers Compensation Other
Jp Morgan Chase Bank Na (Co Trustee) $70,498 $0
Richard A Watson (Co Trustee) $32,398 $0

Document Links

Fiscal Year Ending Oct.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$377,435
Expenses
$206,809
Net Income
$170,626
Net Assets
$3,083,430
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $73,068
19.4%
Sales of Assets $234,309
62.1%
Other Income $70,058
18.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $181,031
87.5%
Compensation of Officers* $38,100
18.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $3,083,430
Total Liabilities $0
Net Assets $3,083,430
Compensation
Key Employees and Officers Compensation Other
Richard A Watson Esq (Co Trustee) $35,600 $0
Jp Morgan Chase Bank Na (Co Trustee) $2,500 $0

Document Links

Fiscal Year Ending Oct.
2017

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2016

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$176,705
Expenses
$258,053
Net Income
-$81,348
Net Assets
$2,952,796
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $76,376
43.2%
Sales of Assets $34,413
19.5%
Other Income $65,916
37.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $206,731
80.1%
Compensation of Officers* $70,048
27.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,952,796
Total Liabilities $0
Net Assets $2,952,796

Document Links

Fiscal Year Ending Oct.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$433,043
Expenses
$170,744
Net Income
$262,299
Net Assets
$3,034,214
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $67,963
15.7%
Sales of Assets $65,825
15.2%
Other Income $299,255
69.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $162,625
95.2%
Compensation of Officers* $2,500
1.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $3,034,214
Total Liabilities $0
Net Assets $3,034,214

Document Links

Fiscal Year Ending Oct.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$311,463
Expenses
$141,594
Net Income
$169,869
Net Assets
$2,773,330
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $64,361
20.7%
Sales of Assets $32,122
10.3%
Other Income $214,980
69.0%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $12,763
9.0%
Compensation of Officers* $63,813
45.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,773,330
Total Liabilities $0
Net Assets $2,773,330

Document Links

Fiscal Year Ending Oct.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,583,196
Expenses
$257,059
Net Income
$1,326,137
Net Assets
$2,603,477
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $300
0.0%
Dividends $63,890
4.0%
Sales of Assets $0
Other Income $1,521,590
96.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $199,694
77.7%
Compensation of Officers* $60,930
23.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $2,603,477
Total Liabilities $0
Net Assets $2,603,477

Document Links

Fiscal Year Ending Oct.
2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$60,823
Expenses
$146,553
Net Income
-$85,730
Net Assets
$1,277,225
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $84
0.1%
Dividends $46,176
75.9%
Sales of Assets $0
Other Income $24,671
40.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $110,276
75.2%
Compensation of Officers* $31,774
21.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,277,225
Total Liabilities $0
Net Assets $1,277,225

Document Links

Fiscal Year Ending Oct.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Oct.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 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 and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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 »

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. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • 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. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • 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 fiscal year 2015 and later.

API

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

See an issue with the data?

Contact Us