Home Solar Loan vs Cash Payback Calculator
Deciding between cash and financing for a solar install changes your real payback timeline. Enter your system cost, financing terms, and expected monthly savings to see which option gets you to break-even faster and what it costs you over time.
About this calculator
Compare paying cash for solar panels versus financing them with a loan, factoring in interest costs, monthly savings, and time to payback.
Frequently Asked Questions
Should I pay cash or finance solar panels?
If the loan rate is low relative to your other investment returns, financing can make sense since you keep cash liquid. If the loan rate is high, paying cash typically saves more over the system's life.
Does the federal tax credit apply to financed systems?
Yes, as long as you own the system (not leasing), you can claim the federal solar tax credit whether you pay cash or take out a loan.
What is a good payback period for solar?
Most homeowners aim for a 6-10 year payback period, though this varies based on local electricity rates, incentives, and system cost.