Corporate Tax Filing in Windsor
T2 corporate tax returns for Windsor corporations prepared and filed by a licensed CPA team. Cross-border trade HST, CUSMA, Stellantis/NextStar EV supply chain CCA. AFFORDABLE flat-fee pricing from $400. No surprise fees.
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Why Windsor Corporations Choose Gondaliya CPA for Corporate Tax Filing
Windsor is southwestern Ontario's largest city and the most important Canada-US trade corridor in the country with over 229,000 residents and more than 10,000 registered businesses. Situated directly across the Detroit River from Detroit, Michigan, Windsor's economy is fundamentally shaped by cross-border trade, with the Ambassador Bridge and the new Gordie Howe International Bridge moving over $100 billion in bilateral goods annually. The Stellantis Windsor Assembly Plant and the $5 billion NextStar Energy EV battery gigafactory anchor a supply chain of hundreds of auto parts manufacturers, battery component suppliers and logistics companies.
These businesses need correct CCA classification, cross-border HST recovery on US imports, CUSMA rules-of-origin documentation and the Clean Technology Investment Tax Credit for EV manufacturing equipment. Windsor corporations importing from the US face HST at the border (collected by CBSA, recoverable as ITCs), customs duties under CUSMA and transfer pricing rules for related-party cross-border transactions. We file every T2 with the documentation that prevents CRA London TSO reviews from escalating. Flat-fee from $400. Windsor CPA Services.
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Windsor Corporate Tax Facts
Corporate Tax Services in Windsor
T2 Corporate Tax Return
Complete T2 preparation and CRA electronic filing. All schedules including Schedule 1, 4, 5, 8, 50, 100 and 125. Cross-border, automotive and greenhouse schedules reviewed. From $400 flat fee.
Cross-Border Trade and Import HST
HST on US imports (collected by CBSA at Ambassador Bridge and Gordie Howe Bridge), ITC recovery on imported goods, CUSMA rules-of-origin documentation, customs duty classification and zero-rated export documentation for US customers.
Clean Tech ITC: Stellantis/NextStar EV
Clean Technology Investment Tax Credit assessment for Windsor businesses in the Stellantis and NextStar EV supply chain. Up to 30% refundable credit on qualifying EV manufacturing equipment, battery assembly machinery and charging infrastructure.
Greenhouse Agriculture Tax
T2 filing for Essex County greenhouse operations. CCA Class 43 production equipment, Class 1/6 greenhouse structures, AgriStability and AgriInvest program income coordination, cannabis cultivation licensing costs and supplemental lighting/CO2 system CCA.
CRA Audit Representation
Direct communication with CRA London TSO on your behalf. Responding to cross-border HST reviews, CUSMA documentation requests, Clean Tech ITC audits and employee vs. contractor reclassifications. FREE for all T2 clients.
Cross-Border Payroll: Canada/US
Windsor businesses with employees working on both sides of the border face dual payroll obligations. Canadian CPP/EI and US FICA coordination under the Canada-US Social Security Agreement, Certificate of Coverage documentation and Treaty-based withholding.
Corporate Tax Filing in Windsor
T2 corporate tax returns for Windsor corporations. CCA optimized for automotive and manufacturing. AFFORDABLE flat-fee pricing.
T2 Corporate Tax Return
Complete T2 preparation with every schedule your Windsor corporation needs, including cross-border and trade-specific schedules.
- Prepare the T2 corporate income tax return with all required schedules including Schedule 1 (net income reconciliation), Schedule 4 (loss carryback), Schedule 8 (CCA) and Schedule 50 (shareholder information).
- Map financial statement data onto Schedule 100 (balance sheet) and Schedule 125 (income statement) through matched GIFI coding.
- Confirm CCPC status and apply the Small Business Deduction (12.2% combined rate on first $500,000 of active business income).
- File electronically with CRA and provide confirmation of filing within 24 hours.
- Include the director's personal T1 return at no additional charge for all T2 clients.
Automotive and Clean Tech CCA
Windsor corporations importing from the US need correct HST recovery and CUSMA documentation.
- Recover HST paid to CBSA on imported US goods as ITCs on the GST/HST return. Separate import HST from customs duties in your bookkeeping to prevent CRA reversals on audit.
- Prepare and maintain CUSMA Certificates of Origin to qualify for preferential (often zero) duty rates on US imports crossing the Ambassador Bridge and Gordie Howe Bridge.
- Classify customs duties correctly as inventory cost (not recoverable) and import HST as recoverable ITC. This is the most common error for Windsor importers.
- Document zero-rated export sales to US customers with proper proof of export to prevent CRA from assessing HST on cross-border sales.
- File duty refund applications with CBSA where non-CUSMA rates were incorrectly applied to qualifying US-origin goods.
Corporate Tax Planning
The Stellantis and NextStar EV supply chain creates significant Clean Technology ITC opportunities for Windsor manufacturers.
- Identify EV manufacturing machinery, battery assembly equipment, thermal management systems and cell testing rigs eligible for the 30% refundable Clean Technology ITC.
- Document that qualifying equipment is used primarily for clean technology manufacturing activities as required by the Clean Tech ITC rules.
- Coordinate the Clean Tech ITC with CCA Class 53 (50% M&P) claims to maximise the combined first-year deduction on qualifying EV supply chain equipment.
- Prepare the Clean Tech ITC claim with T2 filing including all supporting documentation for CRA review.
- File amended T2 returns to recover Clean Tech ITC on equipment acquired in prior years where the credit was not originally claimed.
SR&ED Tax Credits
Essex County is the greenhouse capital of Canada. T2 filing for greenhouse operations requires specialised CCA and income reporting.
- Classify greenhouse structures under CCA Class 1 (4%) or Class 6 (10%) and production equipment including supplemental lighting, climate control and automated irrigation under Class 43 (30%).
- Report AgriStability and AgriInvest program payments correctly as active business income on the T2 return. Coordinate with the program year-end which may differ from the corporate fiscal year-end.
- Claim CCA on cannabis cultivation licensing costs, security systems and compliance infrastructure where the greenhouse has transitioned to or added cannabis production.
- Prepare the T2 with proper income allocation between greenhouse product lines (tomatoes, peppers, cucumbers, cannabis) for operations with mixed revenue streams.
- File amended returns where greenhouse equipment has been misclassified under Class 8 (20%) instead of the correct Class 43 (30%).
CRA Audit Representation
When CRA London TSO contacts your Windsor corporation, we handle everything.
- Respond directly to CRA London TSO on your behalf using authorized representative access for all cross-border HST, CUSMA and CCA inquiries.
- Prepare organized documentation packages for cross-border HST reviews, CUSMA rules-of-origin requests and Clean Tech ITC audits.
- Represent your corporation through CRA reviews of import HST ITC claims, employee vs. contractor status and cross-border payroll compliance.
- File Notices of Objection when CRA assessments are incorrect, particularly on reversed import HST ITCs and denied CUSMA duty classifications.
- CRA audit representation is included FREE for all T2 corporate tax filing clients. No additional fee. We also coordinate with CBSA on duty-related matters.
T2 Amendments and Prior Year Catch-Up
Windsor businesses with employees working on both sides of the border need coordinated Canada-US payroll.
- Coordinate Canadian CPP/EI and US FICA contributions under the Canada-US Social Security Agreement to prevent double contributions.
- Obtain Certificates of Coverage from CRA or SSA to confirm which country's social security system applies to each cross-border employee.
- Allocate income tax withholding between Canada and the US under the Canada-US Tax Treaty based on where work is physically performed.
- Prepare T4 slips reflecting the correct Canadian employment income and cross-border Treaty-exempt amounts for Windsor employees commuting to Detroit.
- Reconcile dual payroll to prevent employee complaints, CRA/IRS discrepancies and double contribution assessments.
Free CPA Consultation for Windsor Businesses
Free Corporate Tax Consultation for Windsor Businesses
Case Studies: Corporate Tax Filing in Windsor
Auto Parts Manufacturer, Stellantis Supply Chain (CCA + Clean Tech ITC)
A Windsor auto parts manufacturer supplying the Stellantis assembly plant and entering the NextStar EV battery supply chain had classified $740,000 in CNC machining centres, robotic welding cells and stamping presses under CCA Class 8 (20%) for three years. Our review reclassified $540,000 to Class 53 (50% M&P) and identified $200,000 in EV battery testing equipment eligible for the Clean Technology ITC at 30%. We filed T2 amendments for two prior years. Windsor CPA Services →
Import/Export Corp, Ambassador Bridge Corridor (CUSMA Duty + HST Recovery)
A Windsor customs brokerage and distribution company importing US auto parts had been paying non-CUSMA duty rates on $2.1 million in annual imports because rules-of-origin Certificates of Origin were not maintained. Simultaneously, $86,000 in HST paid at the border had not been claimed as ITCs because the bookkeeper recorded CBSA payments as customs duties instead of recoverable HST. We prepared CUSMA certificates, filed duty refund applications and corrected the HST returns.
Leamington Greenhouse Corp (AgriStability + Equipment CCA)
A Leamington greenhouse tomato operation had been excluding AgriStability program payments from T2 active business income and had missed $460,000 in CCA on supplemental lighting systems, climate control equipment and automated irrigation purchased over four years. The equipment had been classified under Class 8 (20%) instead of Class 43 (30%). We corrected the AgriStability income reporting, reclassified the equipment and filed amended returns for three prior years. Corporate Tax Filing →
Cross-Border Services Firm, Downtown Windsor (Dual Payroll Resolution)
A Windsor professional services firm with 12 employees commuting daily to Detroit had been remitting both CPP and US FICA on cross-border employees for two years, resulting in $34,000 in double social security contributions. No Certificates of Coverage had been obtained. We filed Certificate of Coverage applications with CRA, obtained refunds of the duplicate CPP contributions and corrected the T4 reporting for both years.
Common CRA Compliance Issues for Windsor Corporations
| Issue | Who Is Affected | Risk |
|---|---|---|
| Import HST vs customs duties | Importers, distributors, manufacturers importing US goods | Mixing import HST and customs duties leads to over-claimed and under-claimed ITCs that CRA reverses on audit. |
| CUSMA rules-of-origin missing | Importers using Ambassador Bridge and Gordie Howe Bridge | Non-preferential duty rates of 3% to 15% on goods that should enter at 0%. A single HS code error on $500K in imports costs $15K to $75K. |
| Clean Technology ITC not claimed | Stellantis/NextStar EV supply chain manufacturers | Up to 30% refundable credit on qualifying EV manufacturing equipment left unclaimed by Windsor manufacturers. |
| Cross-border employee dual payroll | Windsor businesses with Detroit-commuting employees | Double CPP/FICA contributions without Certificate of Coverage. CRA/IRS reconciliation problems. |
| Greenhouse CCA misclassification | Essex County greenhouse operators, cannabis cultivators | Production equipment classified under Class 8 (20%) instead of Class 43 (30%). AgriStability income excluded from T2. |
| Employee vs. contractor (auto manufacturing) | Auto parts manufacturers, skilled trades | Unremitted CPP, EI and source deductions with compounding penalties backdated to first payment. |
| T5018 subcontractor reporting | General contractors, construction trades, renovation companies | $250 per day per statement penalty. CRA London TSO actively enforces against Windsor-Essex construction sector. |
Self-Filed T2 vs. CPA-Filed T2
| Feature | Self-Filed T2 | CPA-Filed T2 (Gondaliya CPA) |
|---|---|---|
| CCA classification | Often defaulted to Class 8 (20%). | Every asset reviewed for correct class. Class 53, 43, 12 applied where eligible. |
| Clean Tech ITC | Rarely claimed. | Identified and applied on every qualifying EV and clean tech asset. |
| SR&ED credits | Not assessed. | Every tech and manufacturing client assessed for SR&ED eligibility. |
| CRA audit support | Owner handles directly. | CPA responds to CRA on your behalf. FREE for all T2 clients. |
| Director's T1 | Separate cost. | Included FREE with every T2 engagement. |
What Is Included in Our T2 Corporate Tax Filing
| Component | Details |
|---|---|
| T2 Corporate Income Tax Return | Complete return with all required schedules. Schedule 1, 4, 8, 50, 100, 125 and any industry-specific schedules. |
| Schedule 8 CCA | Full capital cost allowance schedule with correct class assignments, additions, dispositions, net book value. |
| GIFI-coded financial statements | Balance sheet (Schedule 100) and income statement (Schedule 125) mapped through matched GIFI coding. |
| Director's personal T1 | T1 personal tax return for the primary director included at no additional charge. |
| CRA electronic filing | Filed electronically with CRA. Confirmation provided within 24 hours of filing. |
| CRA audit support | Full CRA audit representation included FREE. We respond to CRA on your behalf for the life of the return. |
Why Choose Gondaliya CPA for Corporate Tax in Windsor?
Cross-Border Expertise
Import HST recovery, CUSMA compliance, Stellantis/NextStar EV CCA, greenhouse agriculture tax. Windsor-specific expertise.
AFFORDABLE Flat Fee
T2 from $400. No hourly billing. Director's T1 and CRA audit support included FREE.
CRA Compliance
Every T2 filed with documentation that prevents CRA London TSO reviews from escalating.
Physical Windsor Office
4387 Guppy Ct, Windsor. In-person and virtual. Evenings and weekends to 9 PM.









AFFORDABLE Corporate Tax Pricing for Windsor
Flat-fee pricing. No hidden fees. No hourly billing. All fees include HST.
| Service | Fee | Turnaround | Details |
|---|---|---|---|
| T2 Corporate Tax Return | From $400 | 5 to 7 business days | All schedules. Director's T1 FREE. CRA audit support FREE. CCA review included. |
| T2 + Monthly Bookkeeping | From $100/mo | Ongoing | Monthly bookkeeping + annual T2 included FREE. Financial statements FREE. Director's T1 FREE. |
| T2 + Books + Payroll + HST | Custom flat fee | Ongoing | Complete service. One flat monthly fee. No hourly billing. No surprises. |
| Cross-Border HST Correction | From $400 | 5 to 7 business days | Import HST ITC recovery, CUSMA duty refund applications. Amended GST/HST and T2 returns. |
| Clean Tech ITC Assessment | Included with T2 | With T2 filing | Assessment and claim for qualifying EV manufacturing equipment. Included for Stellantis/NextStar supply chain clients. |
| Multi-year catch-up (2 to 4 years) | From $350/year | 10 to 14 business days | Unfiled T2 returns prepared and filed. Cross-border HST corrections included. |
| CRA Audit Representation | FREE | Duration of audit | Included at no charge for all T2 clients. We respond to CRA on your behalf. |
How Corporate Tax Filing Works
Consultation
We assess your Windsor corporation's situation, confirm the scope and provide an exact flat fee before any work begins.
Document Upload
Upload records through our TaxDome portal. Accessible from anywhere in Windsor and Windsor-Essex. Same-day access.
CPA Prepares T2
Licensed CPA prepares the complete T2 return. All schedules, every eligible deduction, CCA review for automotive and manufacturing equipment.
Review and File
You review and approve online. We file electronically with CRA and send confirmation. Same-day filing available.
Industries We Serve in Windsor
Serving Windsor Businesses
Our Windsor office is located at 4387 Guppy Ct, Windsor, ON N9G 2N8. We serve businesses across downtown Windsor, Tecumseh, LaSalle, Lakeshore, Amherstburg, Kingsville, Leamington and the Essex County greenhouse corridor. Whether you need a T2 filed for an auto parts manufacturer in the Stellantis supply chain or a greenhouse operation in Leamington, we deliver CPA-prepared corporate tax returns that maximise deductions and prevent CRA reviews from escalating.
We also serve Windsor businesses for bookkeeping, payroll, HST, compilation reports, incorporation, cross-border tax planning and CRA audit resolution. If you need a CPA in Windsor for more than just corporate tax filing, please see our full range of Windsor CPA services.
Gondaliya CPA Windsor Office: 4387 Guppy Ct, Windsor, ON N9G 2N8
Frequently Asked Questions: Corporate Tax Filing in Windsor
Your Windsor Corporate Tax Team

Sharad Gondaliya, CPA
Founder & Managing Director
Gondaliya CPA Professional Corporation
Sharad manages all Windsor corporate tax engagements and signs every T2 return. Cross-border trade, Stellantis/NextStar EV and greenhouse agriculture expertise.

Vandana Goel, CPA
Senior Accountant
Gondaliya CPA Professional Corporation
Vandana prepares T2 returns, cross-border HST reconciliation, CUSMA documentation and CRA audit response documentation for Windsor clients.
What Our Clients Say
1300+ five-star reviews from business owners across Ontario and Canada.
Corporate Tax Filing in Windsor from $400.
Flat-fee. Licensed CPA. Director's T1 FREE. CRA audit support FREE. Evenings and weekends to 9 PM.
