https://ttlc.intuit.com/community/taxes/discussion/principal-business-code-for-high-school-internship/01/3316472#M1220569 <P>My daughter received $800 as high school internship income. Received form&nbsp; 1099NEC. What is the Principal business code that needs to be used to file her returns?</P><P>&nbsp;</P><P>Thanks in advance.</P> Wed, 11 Feb 2026 08:33:49 GMT psk1 2026-02-11T08:33:49Z https://ttlc.intuit.com/community/taxes/discussion/principal-business-code-for-high-school-internship/01/3316472#M1220569 <P>My daughter received $800 as high school internship income. Received form&nbsp; 1099NEC. What is the Principal business code that needs to be used to file her returns?</P><P>&nbsp;</P><P>Thanks in advance.</P> Wed, 11 Feb 2026 08:33:49 GMT https://ttlc.intuit.com/community/taxes/discussion/principal-business-code-for-high-school-internship/01/3316472#M1220569 psk1 2026-02-11T08:33:49Z https://ttlc.intuit.com/community/taxes/discussion/re-principal-business-code-for-high-school-internship/01/3316602#M1220625 <P>The principal business code is a <STRONG>six digit number&nbsp; </STRONG>that represents the <STRONG>field of work&nbsp;</STRONG>you are in. This code is entered on your Schedule C. The complete list of codes can be found on&nbsp; <STRONG>pages 18 to 20 </STRONG>of this <A href="https://www.irs.gov/pub/irs-pdf/i1040sc.pdf" target="_blank">IRS document</A>.</P> <P>&nbsp;</P> <P>This code is for statistical purposes only and does not affect your tax. If you do not find a code corresponding to your activity, you can enter 999999.</P> Wed, 10 Apr 2024 12:00:35 GMT https://ttlc.intuit.com/community/taxes/discussion/re-principal-business-code-for-high-school-internship/01/3316602#M1220625 MinhT1 2024-04-10T12:00:35Z