My ex-wife has not paid any child support since 2005 and now owes me about $15,000. Since her payments are reimbursements for tuition, medical expenses, etc. the amounts vary every month. I know that the interest rate in CA is 10% simple interest and the formula is "Interest = Rate x Principle x TIme", but is the time calculated monthly or yearly (60 months vs. 5 years) and do I have to do a separate calculation for every month since the principle varies?
I checked westlaw/CFLR and I don't think that an individual can purchase their products. Is this something I can do myself with a calculator and lots of time? I'm not in a position right now to pay a lawyer to do this for me.