Introduction

The Basics

Operating the Union

Contract Administration

Organizing

Building Trades and
Other Organizations

Labor Law

Politics and Government

Useful Information

Education

References

Home

Employer Identification Number (EIN)

The union’s EIN is required for all tax filings. Refer to previous tax forms for the number. In the event that your local union has never filed a previous tax return (such as a newly-chartered local), file Social Security form SS-4 to obtain one.

SS-4 form (PDF file)