Accounting for solar installers in Ontario
Solar installers run project billing, financed equipment and inventory, subcontracted electricians, and rebate paperwork, with growth that can outrun the books fast.
CRA EFILE authorized · Every filing signed by an accountant · Switching is free — about an hour of your time
taxifi · Solar Installers
This month
- Bookkeeping Current
- Payroll & source deductions Filed
- HST Filed
- Year-end tax (T2) On track
The problems we take off your plate
Growth that outruns the books
AI keeps the books current daily no matter how fast installs scale, and an accountant reviews every month.
Panels, inverters, and inventory
Stock and job materials are tracked so project margins are real.
Subcontracted electricians
Payments to subs are tracked and T5018 slips prepared and filed where they apply.
What’s included
Published prices for incorporated Ontario solar installers. Everything below is handled.
- Project bookkeeping and job costing
- Panel and inverter inventory tracked
- T5018 reporting for subcontracted trades
- Crew payroll and WSIB-ready records
- Year-end corporate tax (T2), from $1,000 a year
| Area | A typical setup | With taxifi |
|---|---|---|
| Your books | Weeks or months behind | Current every day |
| Year-end (T2) | A spring scramble, billed extra | Included, no surprise invoice |
| Your accountant | Metered by the hour | Unlimited questions, flat monthly |
Incentives, rebates, and construction reporting in one business
Solar sits in two worlds at once. The installation side is construction work, which generally brings T5018 reporting for subcontractor payments — incorporated or not — and holdback timing that affects when HST is due. The equipment and incentive side raises different questions entirely.
Rebates, grants, and incentive programs each need deliberate treatment: depending on the program and who receives it, an amount may reduce the cost of the asset, count as income, or flow through to the customer. Getting it wrong distorts both the project margin and the tax result. Because programs change, this is an area where the accountant should be confirming treatment for the current year rather than repeating last year's assumption.
Common questions
We subcontract electricians. Is that handled?
Yes. Sub payments are tracked and T5018 slips prepared and filed where they apply.
Can the books keep up if we are growing fast?
Yes. AI keeps the books current daily however the volume grows, and your accountant reviews every month.
Do solar installers file T5018 slips?
Generally yes where installation is construction work and you pay subcontractors for construction services — and T5018 reporting applies whether or not the sub is incorporated. Returns are due six months after the reporting period you choose.
How are rebates and incentives treated?
It depends on the program and the recipient: an incentive may reduce the cost base of the asset, be treated as income, or pass through to the customer. Because program terms change, the treatment should be confirmed for the current year rather than carried forward from a prior project.
Books and taxes for your solar installation company, done
Bookkeeping from $99 a month, accountant-reviewed from $299, corporate T2 from $1,000 a year. Prices are published; a call confirms the fit.
Get Started