Solar & Energy Your Solar Loan Has a Payment Increase Built Into Month 18. The Tax Credit That Was Supposed to Cover It Is Gone.
Most solar loans quote you a payment that assumes you will drop about 30% of the balance onto the principal within 18 months. That lump sum was the federal tax credit, and the IRS killed it for anything placed in service after December 31, 2025. Here is how to find out whether your loan has the jump in it.