Free Invoice Template for Solar Installers
Per-kW solar invoicing with panel count, inverter spec, and tax-credit info.
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What is a solar installer invoice?
An solar installer invoice is the bill you send a customer AFTER the work is done. It lists every part, labor charge, and tax, and tells the customer what they owe and how to pay.
What every solar installer invoice should include
- System size (kW)
- Panel brand + model + count
- Inverter spec
- Production estimate (kWh/yr)
- 30% federal tax credit note
Solar installer pricing reference (US, 2026)
Common solar installer line items. National averages — adjust for your local market.
Solar installer invoice tips that get you paid faster
- Always print production estimate — manages expectations
- Document the 30% federal credit in writing
- Battery storage is the new upsell
- Roof condition — photo + disclose
Solar installer invoice FAQ
Do I charge sales tax on solar work?
Most US states tax parts/materials but exempt labor. Use Glo Invoice's per-line tax toggle so each solar line item is taxed correctly. Check your state — a few (HI, NM, SD, WV) tax services too.
How long is payback?
5–10 yrs typical with the 30% federal credit + utility rebates. Show on the quote.
Warranty length?
Panel: 25 yrs; inverter: 10–25 yrs; workmanship: 10+. Print all three.
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