https://ttlc.intuit.com/community/retirement/discussion/re-niit-calculation-error/01/3841281#M264280 <P>Response was helpful.&nbsp; Thanks.&nbsp; Didn't realize MAGI is defined differently (IRS vs Social Security).</P> Tue, 17 Mar 2026 18:27:56 GMT rmlesnick 2026-03-17T18:27:56Z https://ttlc.intuit.com/community/retirement/discussion/niit-calculation-error/01/3835756#M263798 <P>Turbotax is using AGI minus threshold to calculate NIIT.&nbsp; It should be using MAGI minus threshold.</P> Sat, 14 Mar 2026 17:03:28 GMT https://ttlc.intuit.com/community/retirement/discussion/niit-calculation-error/01/3835756#M263798 rmlesnick 2026-03-14T17:03:28Z https://ttlc.intuit.com/community/retirement/discussion/re-niit-calculation-error/01/3835975#M263818 <P>there are different MAGIs... have you checked Form 8960 instructions for Line 13</P><P>&nbsp;</P><P><A href="https://www.irs.gov/pub/irs-pdf/i8960.pdf" target="_blank" rel="noopener">https://www.irs.gov/pub/irs-pdf/i8960.pdf</A></P><P>&nbsp;</P><P class=""><EM>If you didn’t exclude any amounts from your gross income</EM></P><P class=""><EM>under section 911 and you don’t own an interest in a CFC</EM></P><P class=""><EM>or PFIC, your MAGI is your AGI as reported on Form 1040</EM></P><P class=""><EM>or 1040-SR.</EM></P> Sat, 14 Mar 2026 18:42:25 GMT https://ttlc.intuit.com/community/retirement/discussion/re-niit-calculation-error/01/3835975#M263818 baldietax 2026-03-14T18:42:25Z https://ttlc.intuit.com/community/retirement/discussion/re-niit-calculation-error/01/3841281#M264280 <P>Response was helpful.&nbsp; Thanks.&nbsp; Didn't realize MAGI is defined differently (IRS vs Social Security).</P> Tue, 17 Mar 2026 18:27:56 GMT https://ttlc.intuit.com/community/retirement/discussion/re-niit-calculation-error/01/3841281#M264280 rmlesnick 2026-03-17T18:27:56Z