FWIW: I think generally borrowing from a 401k is NOT tax deductible per IRC Section 72(p)(3) without more complicated things. Not that you can borrow *that* much from a 401k.
I’m having a bigger issue right now…On a cash out refinance on a rental, I’m hitting two problems.
1. LTV is only 70-75%.
2. Most places won’t do loans smaller than $100k
That kinda sucks because this property I have could still flow decently with a normal loan. And I could reuse the heloc/401k borrowed fund for another property. Looks like I might have to try absolutemortgage or amerisave.