Can I use a personal loan to pay for solar panels?

Solar installation costs: A typical residential solar system (6-8 kW) costs $15,000-$25,000 before the 30% federal Investment Tax Credit (ITC). After the ITC, net cost is $10,500-$17,500 for most homeowners. This is a substantial amount, but the system generates electricity for 25+ years with minimal operating costs.

Personal loan vs. solar-specific loan: Solar-specific lenders (Mosaic, Sunlight Financial, GoodLeap) offer rates of 5%-12% APR - often lower than personal loan rates for the same borrower. The trade-off: you must use an installer in their network. A personal loan gives you installer freedom and funds in 1-3 days.

How the 30% tax credit interacts with a loan: The ITC is calculated on the full system cost, not the financed amount. Finance $18,000 system via personal loan: your ITC is still $5,400 (30% of $18,000). You receive this credit when you file taxes. Many borrowers apply the tax refund as a lump-sum payment against the loan in year 1, reducing the effective interest cost substantially.

Payback period math: A $20,000 system at 10% APR over 7 years costs $337/month. Average electricity bill reduction: $100-$200/month (varies by location and usage). After-tax cost (with $6,000 ITC in year 1): effective net investment of $14,000. Payback period: 6-9 years. Years 7-25+: essentially free electricity.