Download Free Solar Installer Invoice Templates

Download a template, then edit in PDF, Word, Excel, Google Docs or Google Sheets. Print or email when ready.

Sheets, Excel, Word and Doc Templates Coming November 21, 2025.

Custom Solar Installer Invoice Template

Best for:

Logo, permit and utility interconnect.

Editable Solar Installer Invoice Template

Best for:

Edit rates, add batteries, change orders.

Printable Solar Installer Invoice Template

Best for:

Totals, rebate note, inspection, signatures.

Free Solar Installer Invoice Template

Best for:

Panels, inverter, labor, permits, credits.

How to Invoice as a Solar Installer

Keep the workflow tight from site visit to commissioning so clients know what they’re paying for and when.

Free Online Invoice Generator

☝️ No sign-in. Save as PDF.

In 5 Steps:

Confirm the approved scope and record labor hours, materials used, and any signed changes.
Collect the agreed deposit and log it to the project record.
Build the invoice from your template, referencing permit, inspection, and interconnection IDs.
Attach photos and the commissioning report, then set terms and accepted payment methods.
Send the invoice, apply the deposit to the balance, and schedule reminders until paid.

Free Online Invoice Generator

☝️ No sign-in. Save as PDF.

What to Include in a Solar Installer Invoice

These are the must-have fields for clear, compliant invoices.

Business legal name, address, phone, and email
Contractor license # (check local rules)
NABCEP certification # (if applicable)
Customer name and billing contact
Service address / site location
Invoice number and issue date
Permit # and inspection # (if applicable)
Utility interconnection or net-metering application/ID
Payment terms, deposit received, due date, and accepted methods
Tax rate on materials/parts and any exemptions (check local rules)

Billing Scenarios for Solar Installers

How to label charges so every invoice makes sense the moment your clients see it.

Site visit & shading analysis; System design

Initial site assessment and design consult

Covers the time and planning required before you install.

Permit preparation & filing; Utility interconnection application

Permit filing and utility interconnection paperwork

Clients see the admin work that moves the job forward.

Structural reinforcement; Main service panel upgrade

Roof reinforcement or main panel upgrade needed

Flags extras triggered by code or safety checks.

Microinverter hardware; DC optimizer hardware

Microinverters or optimizers selected

Pause non-urgent extras until you have written approval with a timestamp. Then invoice those additions with a short note about why they were required.

Monitoring gateway; Commissioning & app setup

Monitoring setup and commissioning

Explains the tech and time to activate and verify.

After-hours service call; Diagnostic labor

Sets fair expectations for urgent work outside normal hours.

Free Online Invoice

No sign-in. Save as PDF.

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Standard charges and fees for solar installers

Itemize panels, inverter model, permits, interconnection fees, lift rental, and paperwork with professional invoice line items.

Charge or Service

Unit

Taxable

When to use

How to show it

Site Assessment

Time

First visit or pre-design

Hours × hourly rate. Capture roof/electrical conditions and shade so your estimate matches reality and code.

PV Design & Stamping

Time

Plans, layout, or PE stamp

Hours × hourly rate. Produce drawings, stringing, and calculations; add PE review/stamp when required.

Racking Hardware

Item

Taxable

Rails, clamps, flashings needed

Qty × unit cost × (1 + markup%). Specify by array; use code-compliant attachments for watertight installs.

Solar Modules

Item

Taxable

Supplying panels by count

Qty × unit cost × (1 + markup%). List model and warranty; record serials in the job file.

Inverters/Optimizers

Item

Taxable

Providing inverter or DC optimizers

Qty × unit cost × (1 + markup%). Note type and capacity to match the design and future service.

Electrical Interconnect Labor

Time

Running circuits and tie-in

Hours × hourly rate. Include wiring, breakers/disconnects, labeling, and interconnection per plan.

Trenching & Conduit

Time

Underground or long equipment runs

Hours × hourly rate. Note footage and depth requirements; include backfill and surface restoration scope.

Permit & Utility Filing

Item

Government or utility application fees

Pass-through as billed. Attach receipts; track your time for paperwork under labor items.

Commissioning & Monitoring

Time

Startup, testing, app setup

Hours × hourly rate. Verify production, complete checklists, submit PTO packet, and activate monitoring for the owner.

Change Order Labor

Time

Scope change after approval

Hours × hourly rate. Reference signed change order and describe the delta from the original scope.

Save and reuse your solar install rates and fees

Create a free account and save panel counts, permit fees, and interconnection charges once, so nothing gets retyped.

Create a Free Account

☝️ Risk-free 30-day trial. No card.

Common Solar Installer Invoicing Mistakes

Invoices get messy fast. Use these fixes to avoid disputes and stay compliant.

Mistake

How to fix it

Bundling parts and labor into one line hides scope and causes pushback.

Separate materials and labor with clear quantities and units. Add brief plain-language descriptions so anyone can follow.

Leaving out permit or inspection numbers slows approvals and hurts trust.

Add permit and inspection identifiers in the header. If pending, note submitted or passed dates and update after final.

Record the deposit as a prior payment and show the remaining balance. Keep the payment timeline in the terms.

Pause non-urgent extras until you have written approval with a timestamp. Then invoice those additions with a short note about why they were required.

Missing warranty terms and start date triggers callbacks and confusion.

State coverage, exclusions, and start date tied to commissioning or final inspection. Include contact steps for service.

Omitting taxes where required creates shortfalls and rework.

Apply the correct tax to taxable items only and show the tax basis. When in doubt, check local rules.

Solar Installers Invoice FAQs

Line items for panels, racking, permits, interconnection, crane rental, and change orders. Markup, retainage, and monitoring fees explained for residential and commercial, clear answers.

How do I bill milestone payments on a residential PV install?

Use clear stages. Example line items: “Deposit – 10% Site Survey $500,” “After Permit Approval – 30% $1,500,” “Installation Complete – 50% $2,500,” “PTO/Commissioning – 10% $500.”

What should be on the invoice for permits, engineering, and utility interconnection?

List each pass-through with proof if needed. Use the Solar Installers Invoice Template to add “Permit Fee (City of Phoenix) $450,” “Structural Stamps $275,” “Utility Interconnection Application $125.” Tax and permit rules vary—check local rules.

How do I show equipment vs labor and markup?

Split gear and hours. Example: “Modules 10 × 400W $4,000,” “Racking + BOS $1,200,” “Labor 24 hrs @ $85 $2,040,” “Materials Markup 15% $780.”

How do I price and bill change orders like adding a battery or upsizing the array?

Treat it as a new scope with its own terms. Example: “Change Order #2 – 10 kWh Battery: Equipment $6,200, Labor 8 hrs @ $95 $760, Disposal/Haul-off $60, Total $7,020.”

Can I charge for a site assessment or shade study if the job doesn’t move forward?

Yes, if stated up front. Example: “Shade Analysis + Roof Walk $175,” “Travel/Truck Charge 20 miles @ $1.25 $25.”

How should I handle reinspection fees or utility delays?

Bill pass-throughs and your extra time. Example: “AHJ Reinspection Fee (Actual) $135,” “Standby/Return Visit 2 hrs @ $90 $180,” “Crane Reschedule Fee $250.”

For commercial jobs, how do I show retainage and lien releases?

Show the holdback on every draw. Example: “Progress Billing #3 $40,000, Less 10% Retainage −$4,000, Amount Due $36,000; Note: Partial lien release upon payment.”

How do I bill O&M, monitoring subscriptions, and warranty callbacks?

Separate recurring from one-offs. Example: “Monitoring Subscription $25/mo,” “Annual Preventive Maintenance $350,” “Warranty Call – Labor only 1.5 hrs @ $95 $142.50,” “After-hours Premium 20% $28.50.”