Hi Ben,
First off, congrats on your duplex purchase! Diving into creative financing options like you've done shows initiative, and you're clearly thinking about the big picture. Let's unpack your ROI question in a way that reflects the reality of your financing setup.
When calculating ROI with multiple loans, you'll want to include all financing components in your cash flow analysis. Here's a framework I've used with clients and in my own deals:
Understand Your Total Investment:
Break down your actual contributions: $40,000 from cash, $50,000 from the 401k loan, and any additional transaction costs. The 401k loand might feel like "cheap" money, but that 10.5% interest rate means it's more like a short-term hard money loan. Consider adding this cost into your annual expenses, as it directly impacts your ROI.
Incorporate Your 401k Loan Payments:
Treat the 401k repayment like any other loan. For example, if you're repaying $50,000 over 5 years at 10.5%, your monthly payment is approximately $1,074. This will reduce your monthly cash flow from the property, impacting your ROI.
Break It Down with a Calculator:
While BiggerPockets calculators are fantastic for many scenarios, they don't currently allow you to input multiple simultaneous loans (e.g., mortgage + hard money). You could supliment this by creating a simple spreadsheet to track your total cash flow, including your mortgage and 401k loan payments. For something more robust, tools like Excel or online calculators from financial planning sites might better suit your needs.
Your ROI Formula:
ROI = (Net Cash Flow ÷ Total Out-of-Pocket Investment) × 100
For your scenario:
Net Cash Flow = Annual Rental Income - (Mortgage Payment + 401k Loan Payment + Other Expenses)
Total Out-of-Pocket Investment = $40,000 cash + $50,000 loan payments over 5 years.
I came across a piece in Bloomberg recently discussing creative financing, and they touched on ROI calculations for multiple loans.
Personal anecdote: A buddy of mine leveraged a 401k loan for a fourplex. His mistake was underestimating how much the loan repayment would eat into his cash flow. Adjusting for it allowed him to realize his property's ROI was still positive but not as high as initially hoped. That adjustment helped him plan better for future deals.
Lastly, don’t underestimate the psychological aspect of leveraging retirement funds. Some investors I know have second-guessed pulling from their 401k when markets rebounded stronger than expected. It’s worth having a Plan B for unexpected shortfalls if you can, like setting aside reserves.
From what I’ve seen, markets like San Diego, Chicago, or Austin also offer creative financing opportunities you can explore further.