@narendran-kandas , while agreeing with my colleague @M-MTax on documentation of the loan ( and generally interest charges ), however you may want to consider the benefit vs. complication of interest earnings. Yours being a partnership i.e. a pass through entity ( and a Husband and Wife and state law effects ), you will both show the interest being earned ( taxable ) and interest being paid ( by the LLC )--- ultimately showing up on your own return though K-1.
I strongly believe in KISS ( Keep It Simple Stupid ).
Namaste ji
pk
