Yes, however the Roth contribution is not excess in any of these cases. For '23, my calculated allowable Roth Solo 401K contribution as employee deferral is 30,000 (22,500 + 7500 >50) and the employer Traditional Solo 401(k) contribution is $36,485. I am a sole proprietor/LLC with a long standing solo401(k), wherein the '23 limit is $73,500 (>50) . I have run these contribution amounts thru multiple calculators (fidelity, vanguard, turbotax's automated maximize) and all produce the exact same amount. Meanwhile, the taxes are previously calculated given my Schedule C entries. I then input the traditional contribution, tax burden reduces. I input the Roth, and it increases, which makes no sense as the tax burden was already built in with my entries. It is a double tax trap within TurboTax as it doesn't produce or allow for producing a form 8606.
