Solar Loan vs Cash Purchase
**Cash purchase** maximizes lifetime savings if you have liquidity and can claim the **federal ITC** (check current rules). A **solar loan** spreads cost but interest reduces net savings unless the loan rate is below your utility inflation.
Step by step
1. Net system cost
Subtract tax credits and rebates from gross install quote.
2. Add loan interest
Monthly payment times term minus principal equals finance cost.
3. Compare payback
Years until bill savings exceed net cost—cash usually wins on timeline.
Solar loan vs cash
Loans help when cash would otherwise earn more than the loan APR after tax.
- Cash: Fastest payback; full ITC benefit; ties up capital.
- Solar loan: Preserves cash; payment obligation; dealer fees possible.
Use our calculators
Common mistakes
- Dealer loan with hidden dealer fee
- Ignoring roof replacement before install
FAQ
Is the ITC available with loans?
Generally yes if you own the system—verify loan structure does not lease it.