☀️ Property · GST, VAT & sales-tax ready
Billing software for solar epc installers
Also for: solar installer, rooftop solar company, renewable energy EPC, solar dealer.
Billing software for solar EPC installers splits each project into milestone invoices (site survey, structure, grid approval, commissioning), holds retention until handover, bundles panels, inverters, net meters and structures into one composite quote from a bill of materials, and captures subsidy and net-metering reference IDs on invoices.
Common billing problems in a solar EPC contractor (and how to fix them)
- Long projects billed in stages with retention
- Quotes needing panels, inverters, cabling and structure bundled
- Subsidy and net-metering paperwork referencing invoices
- Material requisition and site-wise stock
- Residential and commercial customers with different GST treatment
- Payment delays between milestones
How billing software helps solar epc installers
Cash flow by stage
Milestone invoices keep money moving through long projects.
Quotes in minutes
BoM kits bundle the whole system.
Paperwork ready
Subsidy and net-metering IDs on invoices.
Recurring O&M
AMC revenue billed automatically.
Solar EPC contractor billing software features
- Milestone and retention invoicing per project
- BoM kits: panels, inverters, net meter, structure in one quote
- Subsidy and net-metering reference fields on invoices
- Site-wise material requisition and stock
- Works-contract GST handling
- Advance receipts and adjustments
- Milestone payment reminders on WhatsApp
- AMC and O&M recurring invoices
Billing software for solar epc installers in action
Example scenario: a 50 kw commercial rooftop project. An illustration of a typical billing cycle, not a customer case study.
- 1
The quote bundles panels, inverters, structure, cabling and net meter from the BoM as one composite kit, with the subsidy reference captured.
- 2
Invoices go out at survey, structure, grid approval and commissioning, each holding 5% retention.
- 3
At handover the retention is released, and an O&M contract starts billing annually.
Sample solar EPC contractor invoice format
| Item | Qty | Rate |
|---|---|---|
| 5 kW rooftop solar kit – milestone 2 (structure & mounting) | 1 | 95,000 |
| Retention held (5%) | 1 | -4,750 |
| Taxable value | 90,250 | |
Columns on a solar EPC contractor invoice: Project, milestone, BoM item, SAC/HSN, qty, rate, GST, retention.
Use it as a solar EPC contractor billing app: create and share this invoice from any phone in three steps: set up items, create the invoice, share on WhatsApp and collect payment.
Tax and compliance notes for solar epc installers
Solar power systems supplied with installation are typically treated as a composite works contract with a specified goods/services split under GST; confirm the current treatment with your CA.
AI features in solar EPC contractor billing software
AI suggestions save time; you review and approve every invoice and message.
Milestone chasing
Flags milestones delivered but not yet invoiced.
BoM pricing
Warns when panel or inverter cost changes make a kit under-priced.
Project margin
Projects final margin from committed costs.
Collection prediction
Estimates when each milestone will be paid.
Billing software integrations for solar epc installers
UPI & Razorpay
Collect payments by UPI QR or payment link on every invoice (India).
WhatsApp Business
Send invoices, statements and reminders on WhatsApp.
Email (Gmail, Outlook)
Send invoices from your own email address.
Tally export
Export sales and receipts for your accountant's Tally books.
Excel & Google Sheets
Import items and customers; export any report.
Webhooks & API
Connect your CRM or any other system.
CA and accountant access for solar epc installers
Separate CA login
Your accountant sees your solar epc installers invoices and payments without your password.
Tax exports on demand
GSTR-1, VAT or sales-tax summaries download whenever your CA needs them.
You stay in control
Choose view-only or edit rights, see every change in the activity log, and remove access in one click.
Billing software vs Excel for solar EPC contractor: which is best?
| Task | Bill book / Excel | Billing Software by Betterwork |
|---|---|---|
| Tax calculation | Manual, error-prone | Automatic per item |
| Sharing bills | Print or photo | PDF on WhatsApp / email |
| Payment follow-up | Phone calls | Automatic reminders |
| Reports for your CA | Re-typed at month-end | One-click export |
| Stock and dues | Separate registers | Updated with every bill |
Solar EPC contractor billing software: frequently asked questions
Can I invoice in stages?
Yes. Define milestones per project and raise each invoice from the project, with retention held and released at handover.
Can a quote bundle the whole kit?
Yes. Build a bill of materials once (panels, inverter, structure, cabling, net meter) and quote it as one composite kit or itemised.
Do subsidy IDs print on invoices?
Yes. Add state or central subsidy reference and net-metering application fields to the template.
How is GST applied on solar projects?
Set the works-contract treatment on the project; the invoice splits goods and services as your CA advises.
Can I bill O&M contracts?
Yes. Annual O&M and AMC contracts bill on a recurring schedule with reminders.
Part of our billing software by industry series. Comparing options? Read the best billing software guide or see how to switch from Tally, Excel or Vyapar.
Billing software for related businesses
Book a free billing software demo for solar epc installers
Bring one sample invoice. We set up Billing Software by Betterwork for your solar EPC contractor on a 30-minute call.
- Template and fields for solar epc installers
- Tax rules for your country
- Items and customers imported