Information For...

For you and your family
Individuals abroad and more
EINs and other information

Filing For Individuals

Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return

 

Employee's Withholding Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS
Breadcrumb Region
Back to Search Results

Musopen

EIN: 20-3177592 | Redwood City, CA, United States


Publication 78 Data

Organizations eligible to receive tax-deductible charitable contributions. Users may rely on this list in determining deductibility of their contributions.

On Publication 78 Data List: Yes

Deductibility Code:  PC

Form 990-N (e-Postcard)

Organizations who have filed a 990-N (e-Postcard) annual electronic notice. Most small organizations that receive less than $50,000 fall into this category.

Tax Year 2015 Form 990-N (e-Postcard)

Tax Period:

2015 (01/01/2015 - 12/31/2015)


EIN:

20-3177592


Legal Name (Doing Business as):
musopen



Mailing Address:
1000 CHESTNUT ST 8C
San Francisco, CA 94109
United States

Principal Officer's Name and Address: 
Aaron Dunn

1000 CHESTNUT ST 8C
San Francisco, CA 94109
United States

Gross receipts not greater than:

$50,000



Organization has terminated:

No



Website URL: 

1983

Tax Year 2014 Form 990-N (e-Postcard)

Tax Period:

2014 (01/01/2014 - 12/31/2014)


EIN:

20-3177592


Legal Name (Doing Business as):
musopen



Mailing Address:
1000 Chestnut St Apt 8C
San Francisco, CA 94109
United States

Principal Officer's Name and Address: 
Aaron Dunn

1000 Chestnut St Apt 8C
San Francisco, CA 94109
United States

Gross receipts not greater than:

$50,000



Organization has terminated:

No



Website URL: 

www.musopen.org

Tax Year 2011 Form 990-N (e-Postcard)

Tax Period:

2011 (01/01/2011 - 12/31/2011)


EIN:

20-3177592


Legal Name (Doing Business as):
musopen



Mailing Address:
50 frost street
Cambridge, MA 02140
United States

Principal Officer's Name and Address: 
Aaron Dunn

50 frost street
Cambridge, MA 02140
United States

Gross receipts not greater than:

$50,000



Organization has terminated:

No



Website URL: 

www.musopen.org

Tax Year 2009 Form 990-N (e-Postcard)

Tax Period:

2009 (01/01/2009 - 12/31/2009)


EIN:

20-3177592


Legal Name (Doing Business as):
musopen



Mailing Address:
2284 Williams Street
Palo Alto, CA 94306
United States

Principal Officer's Name and Address: 
Aaron Dunn

2284 Williams Street
Palo Alto, CA 94306
United States

Gross receipts not greater than:

$50,000



Organization has terminated:

No



Website URL: 

www.musopen.org

Copies of Returns (990, 990-EZ, 990-PF, 990-T)

Electronic copies (images) of Forms 990, 990-EZ, 990-PF or 990-T returns filed with the IRS by charities and non-profits.

Tax Year 2019 Form 990EZ

Organization Name:
musopen


EIN:

20-3177592


Tax Period:

201912

Return ID:

1987619


Filing Type:

E


Return Type:

990EZ


Copy of Return: 
2019 Form 990EZ Filing

Tax Year 2018 Form 990EZ

Organization Name:
musopen


EIN:

20-3177592


Tax Period:

201812

Return ID:

231067


Filing Type:

E


Return Type:

990EZ


Copy of Return: 
2018 Form 990EZ Filing

Tax Year 2017 Form 990EZ

Organization Name:
musopen


EIN:

20-3177592


Tax Period:

201712

Return ID:

231066


Filing Type:

E


Return Type:

990EZ


Copy of Return: 
2017 Form 990EZ Filing

Tax Year 2016 Form 990EZ

Organization Name:
musopen


EIN:

20-3177592


Tax Period:

201612

Return ID:

1869769


Filing Type:

E


Return Type:

990EZ


Copy of Return: 
2016 Form 990EZ Filing