Tax Accountant for HVAC Contractors in Ontario and Across Canada
Keeping heating, ventilation and air-conditioning businesses on top of their numbers — bookkeeping and job costing, corporate tax, HST, payroll and T5018 subcontractor filing, so you can focus on the jobs, not the paperwork. Whether you install furnaces and AC for homeowners, subcontract on commercial builds, or run a service and maintenance crew, a Registered CPA keeps your books accurate and your tax as low as the rules allow. Everything is handled under one roof at clear, AFFORDABLE flat fees — no hourly billing and no surprises.
AFFORDABLE Accounting & Tax Services for HVAC Contractors
HVAC is a materials-heavy, crew-driven, seasonal business, and generic bookkeeping does not cut it. Without proper job costing you cannot see which installs and service calls actually make money; without clean subcontractor records you risk a T5018 problem with the CRA; and without year-round planning you overpay tax on the equipment and trucks that keep your business running. Most HVAC owners are too busy on the tools to fix this.
We handle it all under one roof: monthly bookkeeping with true job costing, corporate tax (T2), HST, payroll for your technicians, T5018 subcontractor filing and year-round tax planning — delivered by a Registered CPA who understands trades. You get accurate margins per job, compliant filings and the lowest legal tax, so more of what you bill stays in the business. We serve HVAC contractors across Ontario and Canada. AFFORDABLE flat fees. No hourly billing.
Our Official Partners
Accounting & Tax Service That Understands HVAC
From furnace and AC installs to service calls, commercial builds and maintenance contracts, we know how HVAC businesses actually make money. One team keeps your books accurate, your filings on time and your tax as low as the rules allow, with clear fixed fees and no surprises.
Stay Compliant and Minimize Your HVAC Business Tax
Contractors face extra CRA scrutiny — subcontractor reporting, holdbacks and HST all have to be right. Compliance and tax savings go hand in hand, and we keep every obligation on schedule while applying every deduction and planning tool available to your HVAC business.
Accounting & Tax Experts for HVAC Contractors
- AFFORDABLE + Fully Registered CPA Firm
- HVAC & Trades Business Specialist
- Job Costing, T5018 & Contractor Tax Expert
- Bookkeeping, payroll and tax filing
- Certified CPA
- 1300+ 5-stars Google reviews
- 30-Day Money-Back Guarantee
- 60-Day Fees Matching Policy
Why HVAC Contractors Choose Our Tax and Accounting Service
Trades & HVAC Expertise
We work with HVAC, refrigeration and sheet-metal contractors every day. We know job costing, the T5018, holdbacks, WSIB and the CCA rules on trucks and equipment that matter most to heating and cooling businesses.
Full-Service Firm
Bookkeeping, corporate tax, HST, payroll, T5018 and advisory all live under one roof, on one system. You get a single point of contact and joined-up advice, so nothing falls through the cracks between separate providers.
Fixed-Fee, AFFORDABLE Pricing
Every service is an AFFORDABLE flat fee, quoted before we start. No hourly billing and no surprises for your HVAC business, all backed by our 30-Day Money-Back Guarantee and 60-Day Fees-Matching Policy.
Trusted by 1300+ Clients
We are one of Canada’s most AFFORDABLE CPA firms, trusted by more than 1,300 business owners including many trades and contractors. Clients stay because we keep their books clean, filings on time and tax as low as possible.
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HVAC & Trades Clients
HVAC Contractor Tax and Accounting Services in Ontario
Corporate Tax Filing for HVAC Contractors
T2 corporate returns for HVAC companies with CCA on trucks and tools, T5018 subcontractor reconciliation and holdbacks handled.
Accounting & Bookkeeping for HVAC Contractors
Monthly bookkeeping with true job costing so you know the margin on every install and service call.
Corporate Tax Planning for HVAC Contractors
Planning on truck and equipment purchases, salary-dividend mix and the small business deduction.
Catch-Up Corporate Tax Filing for HVAC Contractors
File overdue T2 and HST returns, rebuild records and reconcile subcontractor payments to restore compliance.
GST/HST Filing for HVAC Contractors
Accurate HST on installation, repair and maintenance, with full input tax credits on materials and fuel.
Corporate Tax Cleanup for HVAC Contractors
Fix misclassified CCA, unreconciled T5018 and holdback errors by amended return.
CRA Audit Resolution Services for HVAC Contractors
Support with CRA audits on subcontractors, HST and T5018 matching, handled on your behalf.
CPA Compilation Report (Notice to Reader) for HVAC Contractors
CSRS 4200 Notice to Reader statements for bonding, equipment financing and bank credit.
Incorporation Services for HVAC Contractors
Incorporation services with Business Number, GST/HST, payroll and WSIB registration.
Catch-Up Bookkeeping Services for HVAC Contractors
Rebuild behind books: install jobs, service calls, maintenance-plan deferred revenue, parts and van stock, technician payroll and T5018.
US Corporation & LLC Tax Filing for HVAC Contractors
Form 1120, treaty-based 1120-F, Form 5472 and LLC foreign tax credit issues for cross-border HVAC work.
Voluntary Disclosure Program for HVAC Contractors
RC199 applications for unreported cash service work, unremitted HST, unfiled T5018 slips and back-year returns.
Accounting & Tax Services Tailored for HVAC Contractors
Each service, explained in full, so you know exactly what is included and how it keeps your HVAC business compliant and your tax as low as the rules allow.
- We file your work trucks and vans in the correct CCA classes (Class 10 and 10.1) and your tools, gauges, recovery machines and shop equipment in Class 8, on separate pools to maximize depreciation each year.
- We reconcile the payments you made to subcontractors against the T5018 you file, so the CRA’s matching system does not flag differences between what your company reported and what each subcontractor received.
- We apply the Accelerated Investment Incentive on new equipment and vehicle purchases, claiming an enhanced first-year write-off to reduce the corporate tax your HVAC business owes in the year you buy.
- We account for work-in-progress and construction holdbacks correctly, recognizing income as it is earned so your T2 reflects real profit rather than just what has been invoiced or collected.
- We apply the small business deduction, loss carryforwards and every eligible credit so your corporation pays the lowest legal tax rate and stays fully CRA-compliant.
- We set up job or project tracking in QuickBooks or Xero so every install and service call carries its own materials, labour, subcontractor and equipment costs, giving you the true margin on each job.
- We reconcile supplier invoices from your wholesalers against the jobs they belong to, so material costs land on the right project and your gross margin by job type is accurate.
- We separate install revenue, service and repair revenue, and maintenance-contract revenue in your chart of accounts, so you can see which side of your HVAC business is really driving profit.
- We track customer deposits and progress billings against work completed, so your books show what you have actually earned rather than overstating income from money collected up front.
- We run payroll for your technicians, installers and apprentices and deliver clear monthly reports — profit by job, work-in-progress and cash position — so you can price jobs with real numbers.
- We time your truck, van and equipment purchases before your fiscal year-end to trigger Accelerated CCA, turning gear you need anyway into a tax deduction in the year that helps most.
- We model the salary-versus-dividend mix for owner-managers, targeting the 0,000 small business deduction threshold while building RRSP room and managing CPP.
- We monitor passive investment income so it stays below the ,000 threshold that grinds down the small business deduction, preserving the low combined rate on your active HVAC income.
- We plan HST and corporate tax instalments around your seasonal cash flow, so the summer and heating-season swings never leave you short when a CRA payment is due.
- For owners running more than one company or holding real estate, we plan intercorporate structures and management fees so they are at fair market value and deductible without CRA challenge.
- If your HVAC corporation has two or more years of unfiled T2 returns, we file all outstanding catch-up returns and negotiate penalty relief before the CRA revokes your business number or issues arbitrary assessments.
- We rebuild missing revenue and costs from supplier statements, merchant deposits and bank records when your books fell behind during a busy growth period.
- We reconcile past subcontractor payments and prepare or correct the T5018 filings that were missed, closing a common gap that triggers CRA contractor reviews.
- We correct misclassified CCA where trucks, tools and equipment were lumped together or expensed incorrectly, recovering years of lost depreciation deductions.
- We fix work-in-progress, holdback and shareholder-loan errors so your balance sheet is accurate for lenders, bonding and your next clean year.
- We make sure HST is charged correctly on your installation, repair and maintenance work, and handle the mix of taxable labour and materials on a single invoice so nothing is under- or over-collected.
- We claim input tax credits on the HST you pay on materials, equipment, fuel, tools and subcontractors, which for a materials-heavy HVAC business adds up to real money recovered each period.
- We handle the HST timing on holdbacks and progress draws correctly, so you remit tax when it is actually due rather than out of pocket ahead of collection.
- We compare the Quick Method against the regular method for your business and choose the option that leaves the most cash in your pocket.
- We file your GST/HST returns on your monthly, quarterly or annual schedule, on time, so you avoid CRA interest and penalties.
- We correct misclassified CCA pools where a previous bookkeeper lumped different asset classes together, recovering years of lost depreciation on your trucks, tools and equipment.
- We reconcile historical subcontractor payments and amend or file the T5018 returns that were missed in prior years, correcting a frequent contractor-audit trigger.
- We fix work-in-progress and holdbacks that were recognized incorrectly, so prior-year income and your balance sheet reflect what was actually earned.
- We rebuild the shareholder-loan account where owner draws, personal expenses and reimbursements were never separated, preventing taxable-benefit inclusions.
- We correct retained-earnings and HST errors from earlier years by amended return, so your financial statements match reality for lenders and bonding.
- HVAC and construction businesses are audited often on subcontractor treatment — we defend your T5018 contractor classifications with engagement agreements and control-test documentation.
- When the CRA questions HST on your mixed labour-and-material invoices, we reconcile your billings and input tax credits and prepare a documented response.
- We respond to T5018 matching letters by tying each subcontractor payment in your records to the amounts reported, resolving discrepancies without unnecessary reassessment.
- We present payroll records, PD7A reconciliations and WSIB documentation in an organized audit package that demonstrates your business’s full compliance.
- We submit RC4288 Taxpayer Relief requests where penalties resulted from a prior bookkeeper’s errors, documenting the circumstances to maximize penalty cancellation.
- We prepare CSRS 4200 compilation (Notice to Reader) financial statements that surety companies and banks require for bonding, equipment financing and lines of credit — often mandatory to bid larger commercial HVAC work.
- Your statements show equipment and vehicles at net book value, work-in-progress, holdback receivables, shareholder-loan balances and retained earnings, giving lenders an accurate picture of your business.
- We classify install, service and maintenance revenue and your costs under the correct GIFI codes so the Notice to Reader matches your T2 return exactly.
- We include the required CSRS 4200 disclosures plus notes on revenue recognition, holdbacks and related-party transactions, so the statements stand up to lender and surety review.
- We deliver your statements promptly after year-end, so you never lose a bonding line or delay a financing close because compiled statements were late.
- We handle the full incorporation of your Ontario or federal HVAC business, including the NUANS name search, articles of incorporation and initial registrations, so you can start billing through the corporation quickly.
- We register your corporation for a CRA Business Number, GST/HST, payroll and WSIB accounts so your HVAC business is compliant from its first day of operations.
- For owners moving from a sole proprietorship, we coordinate the ITA section 85 rollover of business assets — trucks, tools and equipment — into the corporation at elected amounts to defer any gains.
- We design a share structure that supports income splitting and future growth, so you are not paying to amend the articles a year later.
- We prepare your opening balance sheet and minute book, including director resolutions and share certificates, so your corporate records are complete and compliant.
- We rebuild months or years of missing HVAC books from bank feeds, merchant deposits and supplier statements, so every furnace changeout, rooftop install and service-call invoice is recorded in the period it was actually earned.
- We set up deferred-revenue tracking for annual maintenance plans and extended service contracts collected up front, so that money is earned across the year as visits are performed rather than overstating income in the month of sale.
- We clean up equipment and parts purchases posted to the wrong accounts, separating job materials from van stock and shop equipment, so your material cost by job and your CCA pools are finally accurate.
- We catch up technician and apprentice payroll, source deductions and PD7A remittances, and prepare the missed T5018 Statement of Contract Payments for subcontracted install work that the CRA matching system flags.
- We then file the back-year HST returns and T2 corporate returns the cleanup produces, covering every period after your revenue passed the $30,000 registration threshold, bringing your HVAC company current with the CRA.
- We prepare Form 1120 for HVAC groups that set up a US subsidiary to install or service equipment across the border, and coordinate its results with your Canadian T2 so the same profit is not taxed twice.
- Where your Canadian corporation takes US work without a permanent establishment there, we file a protective Form 1120-F with a treaty-based return position under Article V, preventing an IRS assessment on your gross US receipts.
- We file Form 5472 for every reportable transaction between your HVAC company and its US entity, including equipment transfers, management fees and intercompany loans, because each missed or late form carries a $25,000 penalty.
- We resolve the LLC hybrid mismatch, where Canada treats your US LLC as a corporation while the IRS treats it as flow-through, so the US tax you paid actually produces a usable Canadian foreign tax credit.
- For US-citizen or green-card shareholders of your HVAC corporation, we handle Form 5471 and GILTI reporting, plus the state registrations triggered when technicians cross the border to work on American job sites.
- We prepare and file Form RC199, the Voluntary Disclosures Program application, setting out the unreported HVAC income or unfiled returns in full and supporting it with rebuilt books before the CRA contacts your business first.
- We test your situation against the five acceptance conditions: the disclosure must be voluntary and complete, involve a penalty or interest, include information at least one year overdue, and include payment of the estimated tax.
- Where cash service calls and weekend furnace repairs were never recorded, we quantify the unreported revenue and the 13% HST collected but never remitted, including years your sales passed the $30,000 registration threshold.
- We include unfiled information returns in the same disclosure, covering T5018 Statements of Contract Payments for subcontracted install work and T4 slips for technicians paid off the books, so nothing is left outstanding.
- We argue for the general track, which gives penalty relief and partial interest relief, instead of the limited track that only prevents prosecution and gross-negligence penalties, and we deal with the CRA throughout.
HVAC Business Tax & Compliance Check
Six quick questions on your HVAC company’s books, tax and subcontractor setup. No fee shown.
1. Do you pay subcontractors for any of your HVAC work?
2. Do you track costs (materials, labour, subs) by individual job?
3. Is your HVAC business incorporated?
4. Do your jobs involve holdbacks or progress billing?
5. Did you buy, or plan to buy, a work vehicle or major equipment this year?
6. Do you sell service or maintenance contracts billed up front?
Free CPA Consultation for HVAC Contractors
Case Studies: HVAC Contractor Accounting & Tax
Mississauga Furnace & AC Installer – Job Costing
Problem: A growing residential install company was doing its own bookkeeping with no job costing, so the owner could not tell which installs made money. He also paid several subcontractors but had never filed a T5018, and was overpaying tax by expensing trucks incorrectly.
Solution: We rebuilt the books with job costing in QuickBooks, reconciled a year of subcontractor payments and filed the outstanding T5018, and reclassified the trucks and tools into the correct CCA classes. We then restructured the owner’s salary-dividend mix.
Results:
- True profit visible on every install
- T5018 filed and fully CRA-compliant
- Saved $9,400 in tax through correct CCA and planning
- Clean books ready for equipment financing
Toronto Commercial HVAC Subcontractor – Bonding
Problem: A commercial subcontractor working on new builds had holdbacks and progress billings recorded incorrectly, so its income and cash flow were distorted. It needed CPA-compiled statements to secure bonding for a larger contract but had none.
Solution: We implemented proper work-in-progress and holdback accounting, corrected the HST timing on holdbacks, and prepared CSRS 4200 Notice to Reader financial statements with the schedules the surety required.
Results:
- Accurate income and holdback reporting
- NTR statements delivered for the surety
- Bonding approved for the larger contract
- HST remitted on time, not out of pocket early
Brampton Owner-Operator Service Tech – Incorporation
Problem: A sole-proprietor HVAC service technician was mixing personal and business spending, missing deductions on his van and tools, and unsure whether it was time to incorporate as his service income grew.
Solution: We cleaned up his books, claimed his vehicle, tools and home-office costs, and ran a when-to-incorporate analysis. With the numbers clear, we incorporated him and set up his CRA and HST accounts.
Results:
- Missed vehicle and tool deductions recovered
- Incorporated at the right income level
- Tax deferral through the small business deduction
- Simple monthly bookkeeping going forward
We make managing your HVAC business finances simple and stress-free. Our transparent process keeps you informed and compliant at every stage.
Free Consultation
We start with a no-obligation consultation to understand your HVAC business, your jobs and crew, and your goals.
Books & Job Costing Setup
We set up cloud bookkeeping with job costing, connect your bank and supplier feeds, and get your CRA accounts in order.
Monthly Bookkeeping & Reporting
We reconcile your accounts, cost your jobs, and deliver clear reports so you always know where your business stands.
Tax, HST & T5018 Filing
We file your corporate tax, HST, payroll and T5018 on time—keeping you CRA-compliant and penalty-free.
Get Your HVAC Business Tax-Ready Today
Affordable Pricing for HVAC Contractors
We believe in clear, upfront pricing so you know exactly what to expect.
- Tax Preparation (Corporation) – From $400
- Tax Return Filing (Corporation) – From $400
- Tax Compliance Audit – FREE CRA audit support for our clients
- Tax Strategy – FREE for our clients
- Accounting Base Plan – From $100 per month
- Bookkeeping Management – Free for our Accounting clients
- Financial Reporting – Free for our Accounting clients
- Business Formation – Flat $35
- Incorporation Process – Flat $35
- Entity Setup Assistance – Flat $35
- Full-Service Payroll – From $125 per month
Meet Your HVAC Accounting & Tax Team
What Our Clients Say
1300+ five-star reviews from business owners and contractors across Ontario and Canada.
Supporting HVAC Contractors Across Ontario
We serve HVAC contractors across Ontario and Canada, providing flexible hybrid accounting—whether you prefer in-person guidance, remote support, or a combination of both. We keep your job costing accurate, your filings CRA-compliant and your statements bonding-ready, so you can focus on installs, service and growing your crew. We proudly support HVAC businesses in Toronto, Mississauga, Brampton, North York, Etobicoke, Scarborough, Vaughan, Markham, Richmond Hill, and Ottawa. No matter where you work, we bring the expertise and tools to simplify your bookkeeping, payroll, HST and tax.
Toronto (ON)
55 Queen St E Ste 1205, Toronto, ON M5C 1R6, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Mississauga (ON)
2100 Camilla Rd #716, Mississauga, ON L5A 2J8
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Brampton (ON)
4 Starhill Crescent, Brampton, ON L6R 2P9, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Scarborough (ON)
24 Clementine Square, Scarborough, ON M1G 2V7, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Vaughan (ON)
19 Cabinet Crescent, Woodbridge, ON L4L 6H9, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Oshawa (ON)
210 Durham St, Oshawa, ON L1J 5R3, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Ottawa (ON)
2090 Neepawa Ave a314, Ottawa, ON K2A 3L6, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Etobicoke (ON)
60 Stevenson Rd #1601, Etobicoke, ON M9V 2B4, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Hamilton (ON)
70 Starling Dr, Hamilton, ON L9A 0C5, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Guelph (ON)
1155 Gordon St, Guelph, ON N1L 1S8, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
Windsor (ON)
4387 Guppy Ct, Windsor, ON N9G 2N8, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
North York (ON)
150 Graydon Hall Dr #912, North York, ON M3A 3B2, Canada
+1 (647) 212-9559
9:00 AM – 8:30 PM (Mon – Sun)
HVAC Contractor Accounting & Tax FAQs
Related Industries We Serve
Construction
- Job costing & WIP
- T5018 subcontractor filing
- Corporate tax & HST
- Bookkeeping & payroll
Small Businesses
- Corporate tax planning
- Business tax filing
- Payroll services
- Incorporation & Bookkeeping
Self-Employed & Contractors
- T2125 self-employment filing
- Deduction & expense tracking
- GST/HST registration
- Bookkeeping & tax planning
HVAC Contractor Accounting & Tax Done Right.
Job costing, corporate tax, HST, payroll, T5018 and bonding-ready statements under one roof. AFFORDABLE flat fees, no hourly billing. Registered CPA Ontario. 1300+ five-star reviews. 30-Day Money-Back Guarantee.