Why is my Qualified Business Income limited? Based on my self employment income it should be $3,311 but TT is saying limited to $667 with no explanation.

[cohenges]

I have no capital gains, so nothing should have been deducted.

[JulieCo]

The QBI deduction calculation has many components to it and it is not a straight 20% of qualified business income.  For taxable income under the thresholds of $157,500 single/MFS or $315,000 joint, the calculation is EITHER 20% of the qualified business income (less self employment taxes, health insurance and retirement) OR 20% of your taxable income less capital gains, whichever is LESS.  Therefore, the QBI is calculated on the lower amount which, on your return, was your taxable income less the capital gain. 

See more information plus examples of the deduction calculation below:

https://ttlc.intuit.com/replies/7019998