---
kind: "section"
citation: "27 C.F.R. § 24.46"
title: "27"
number: "24.46"
heading: "Application."
url: "https://uscodex.org/cfr/27/24.46"
---

# §24.46. Application.

- (a) An employer identification number will be assigned pursuant to application on Internal Revenue Service (IRS) Form SS-4 filed by the taxpayer. IRS Form SS-4 may be obtained from the director of the service center or from any district director.
- (b) An application on IRS Form SS-4 will be made by the taxpayer who, prior to filing the first return, has neither secured nor made application for an employer identification number. An application on IRS Form SS-4 will be filed on or before the seventh day after the date on which the first return is filed.
- (c) Each taxpayer shall make application for and be assigned only one employer identification number, regardless of the number of places of business for which the taxpayer is required to file a tax return under the provisions of this part. (Pub. L. 87-397, 75 Stat. 828, as amended ([26 U.S.C. 6109](/usc/26/6109.md)))

## Notes

### Authority

Authority: 5 U.S.C. 552(a); 26 U.S.C. 5001, 5008, 5041, 5042, 5044, 5061, 5062, 5121, 5122-5124, 5173, 5206, 5214, 5215, 5351, 5353, 5354, 5356, 5357, 5361, 5362, 5364-5373, 5381-5388, 5391, 5392, 5511, 5551, 5552, 5661, 5662, 5684, 6065, 6091, 6109, 6301, 6302, 6311, 6651, 6676, 7302, 7342, 7502, 7503, 7606, 7805, 7851; 31 U.S.C. 9301, 9303, 9304, 9306.

### Source

Source: T.D. ATF-299, 55 FR 24989, June 19, 1990, unless otherwise noted.