PROPUBLICA Fearless Reporting for an Informed Society — Join Us.
DONATE
Skip to content
ProPublica Donate
ProPublica Donate

International Chess School Inc

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.

Category: Recreation, Sports, Leisure, Athletics / Recreational, Pleasure, or Social Club (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$520k (2023)

Expenses
$257k (2023)

Total Assets
$3.74M (2023)

Total Liabilities
$7.75k (2023)

Source: Form 990 tax filings from 2011 to 2023

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 Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$520,322
Expenses
$257,086
Net Income
$263,236
Net Assets
$3,728,062
Notable Sources of Revenue Percent of Total Revenue
Contributions $419,500
80.6%
Program Services $4,370
0.8%
Investment Income $196,329
37.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$99,877
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,735,812
Total Liabilities $7,750
Net Assets $3,728,062
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Gene Roytvarf (Secretary) $0 $0 $0
Edward Dreyzin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0
Nelli Kalihovsky (Former Secretary) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$688,791
Expenses
$234,991
Net Income
$453,800
Net Assets
$3,079,245
Notable Sources of Revenue Percent of Total Revenue
Contributions $448,344
65.1%
Program Services $5,840
0.8%
Investment Income $137,461
20.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $97,146
14.1%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,086,495
Total Liabilities $7,250
Net Assets $3,079,245
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreyzin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$486,727
Expenses
$230,575
Net Income
$256,152
Net Assets
$3,124,646
Notable Sources of Revenue Percent of Total Revenue
Contributions $404,000
83.0%
Program Services $1,440
0.3%
Investment Income $76,057
15.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $5,230
1.1%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,131,346
Total Liabilities $6,700
Net Assets $3,124,646
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreyzin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$691,624
Expenses
$218,258
Net Income
$473,366
Net Assets
$2,641,220
Notable Sources of Revenue Percent of Total Revenue
Contributions $400,000
57.8%
Program Services $23,826
3.4%
Investment Income $182,935
26.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $84,863
12.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $2,647,620
Total Liabilities $6,400
Net Assets $2,641,220
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreyzin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$469,598
Expenses
$205,303
Net Income
$264,295
Net Assets
$1,982,340
Notable Sources of Revenue Percent of Total Revenue
Contributions $400,000
85.2%
Program Services $25,736
5.5%
Investment Income $42,313
9.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $1,549
0.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,988,290
Total Liabilities $5,950
Net Assets $1,982,340
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$391,175
Expenses
$203,392
Net Income
$187,783
Net Assets
$1,498,456
Notable Sources of Revenue Percent of Total Revenue
Contributions $350,000
89.5%
Program Services $55,405
14.2%
Investment Income $40,479
10.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$54,709
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,504,056
Total Liabilities $5,600
Net Assets $1,498,456
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$457,332
Expenses
$187,369
Net Income
$269,963
Net Assets
$1,350,114
Notable Sources of Revenue Percent of Total Revenue
Contributions $353,000
77.2%
Program Services $66,025
14.4%
Investment Income $39,778
8.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$1,471
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,355,514
Total Liabilities $5,400
Net Assets $1,350,114
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$354,143
Expenses
$185,961
Net Income
$168,182
Net Assets
$1,048,913
Notable Sources of Revenue Percent of Total Revenue
Contributions $255,000
72.0%
Program Services $58,912
16.6%
Investment Income $34,859
9.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $5,372
1.5%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,054,113
Total Liabilities $5,200
Net Assets $1,048,913
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$324,523
Expenses
$66,423
Net Income
$258,100
Net Assets
$819,672
Notable Sources of Revenue Percent of Total Revenue
Contributions $274,348
84.5%
Program Services $73,596
22.7%
Investment Income $23,489
7.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$46,910
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $825,672
Total Liabilities $6,000
Net Assets $819,672
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$125,240
Expenses
$50,427
Net Income
$74,813
Net Assets
$604,764
Notable Sources of Revenue Percent of Total Revenue
Contributions $33,235
26.5%
Program Services $60,728
48.5%
Investment Income $21,691
17.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $9,586
7.7%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $604,764
Total Liabilities $0
Net Assets $604,764
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Nelli Kalihovsky (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$102,668
Expenses
$64,162
Net Income
$38,506
Net Assets
$567,184
Notable Sources of Revenue Percent of Total Revenue
Contributions $22,000
21.4%
Program Services $46,080
44.9%
Investment Income $27,022
26.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $7,566
7.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $567,184
Total Liabilities $0
Net Assets $567,184
Compensation
Key Employees and Officers Compensation Related Other
Michael Khodarkovsky (Executive Director) $0 $0 $0
Maria Kleyner (Secretary) $0 $0 $0
Edward Dreizin (President) $0 $0 $0
Felix Rosenwasser (Trustee) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$130,938
Expenses
$82,460
Net Income
$48,478
Net Assets
$546,016
Notable Sources of Revenue Percent of Total Revenue
Contributions $24,000
18.3%
Program Services $69,624
53.2%
Investment Income $27,792
21.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $9,522
7.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $546,016
Total Liabilities $0
Net Assets $546,016

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$148,602
Expenses
$82,188
Net Income
$66,414
Net Assets
$497,538
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,000
12.8%
Program Services $82,638
55.6%
Investment Income $26,537
17.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $20,427
13.7%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $497,538
Total Liabilities $0
Net Assets $497,538

Document Links

Fiscal Year Ending Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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 Dec.
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

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 »