GST/HST & Sales Tax

At Blue Ocean Tax, we provide GST/HST and sales tax compliance and advisory services for small business corporations, self-employed individuals, and owner-managed businesses across Canada. We help businesses meet their CRA and provincial sales tax obligations while minimizing errors, penalties, and cash-flow issues.

Sales tax rules can be complex and vary by province and business activity. Our role is to ensure your filings are accurate, compliant, and optimized.

GST/HST Registration & Setup

GST/HST registration and account setup
Small supplier threshold analysis
Voluntary vs mandatory registration guidance
Reporting period selection
CRA account setup and access support

GST/HST & QST Filings

Preparation and filing of GST/HST returns
Quebec Sales Tax (QST) filings
Monthly, quarterly, and annual filings
Multi-province sales tax compliance
Adjustments and amendments to prior-year returns

Input Tax Credits & Cash-Flow Optimization

Input tax credit (ITC) review and optimization
Eligibility analysis for expenses and assets
Apportionment for mixed-use expenses
ITC documentation and audit-readiness

Special Sales Tax Situations

Short-term rental and Airbnb sales tax compliance
Zero-rated and exempt supplies analysis
Cross-province sales and digital services
Commercial real estate transactions
Self-assessment and reverse charge rules

CRA & Revenue Québec Audit Support

CRA GST/HST audits and reviews
Revenue Québec sales tax audits
Audit response and documentation support
Negotiation and resolution assistance
Notices of assessment and reassessment review

Voluntary Disclosures & Compliance Corrections

Late or missing GST/HST filings
Correction of reporting errors
Voluntary disclosure submissions
Penalty and interest mitigation support

Our Approach

We take a practical and proactive approach to sales tax compliance—helping clients stay current, reduce risk, and avoid costly mistakes. Our services are tailored to small and owner-managed businesses, not large or complex multinational enterprises.

Accurate sales tax reporting protects your business and supports better cash-flow management.

Who We Serve

Small business corporations (CCPCs)
Self-employed professionals
Retail, service, and online businesses
Short-term rental operators
Businesses operating in multiple provinces