CRA Builder Audits and GST/HST Exemptions
CRA builder audits frequently arise where an individual or corporation constructs, substantially renovates residential property and later sells or rents it. Once CRA determines that a taxpayer is a “builder” for GST/HST purposes, the default assumption is that tax should have been collected or self-assessed. However, being classified as a builder does not automatically mean GST/HST is payable. Several important exemptions under the Excise Tax Act may still apply.
In practice, many CRA builder audits turn not on whether the taxpayer is a builder, but on whether the correct exemption was applied or whether CRA has misunderstood how the self-supply rules operate. A Toronto tax lawyer can often resolve these cases by refocusing the analysis on the applicable exemptions rather than the builder label alone.
When CRA Determines You Are a Builder
CRA may determine that a taxpayer is a builder where they construct or substantially renovate residential property, even if the taxpayer did not consider themselves to be one. This includes individuals who build or renovate homes intended for personal use, as well as corporations involved in residential construction.
Once CRA applies the builder designation, it typically reassesses on the basis that GST/HST should have been charged on a sale or self-assessed under the self-supply rules. However, the Excise Tax Act contains exemptions that can override those assumptions.
Schedule V, Part I, Section 3 – Primary Use Exemption on Sale
Where a builder sells a residential complex that was used primarily as a place of residence by the builder or a related individual, Schedule V, Part I, Section 3 may apply to exempt the sale from GST/HST. This exemption is often overlooked in CRA audits.
In primary-use scenarios, CRA frequently focuses on the fact that the taxpayer is technically a builder and assumes tax must apply on sale. That approach is incorrect if the property was used as a primary place of residence and the statutory conditions are met. In these cases, the sale may be exempt even though the seller is a builder.
Schedule V, Part I, Section 4 – Self-Supply Should Have Applied
In some builder audit cases, CRA reassesses GST/HST on the basis that tax should have been collected on the sale of a residential property. However, where the self-supply rules applied earlier, the subsequent sale may be exempt under Schedule V, Part I, Section 4.
This exemption recognizes that where a builder is required to self-assess GST/HST on the fair market value of a residence at a particular point in time, typically when it is first occupied or rented, the later sale of that property is exempt. CRA audits sometimes miss this sequencing entirely and assess tax twice, once implicitly through self-supply and again on sale.
Correctly identifying when the self-supply occurred is often central to defeating the reassessment.
Section 191(5) – Exemption From the Self-Supply Rules
Even where CRA asserts that the self-supply rules should have applied, section 191(5) of the Excise Tax Act provides an exemption in certain circumstances. This provision can apply where a residence is used primarily as a place of residence by the builder or a related individual.
In these cases, there may be no self-supply at all. CRA builder audits frequently assume that self-supply is automatic, but section 191(5) can completely remove the obligation to self-assess GST/HST if the statutory conditions are met.
This exemption is particularly relevant in cases involving custom homes, family residences, and properties that were never intended for commercial rental or resale at the time of construction.
Why CRA Builder Audits Go Wrong
CRA builder audits often suffer from an overly mechanical application of the rules. Once CRA concludes that a taxpayer is a builder, it may default to assessing GST/HST without fully analyzing Schedule V exemptions or section 191 relief. This can result in significant over-assessments that are legally unsupportable.
These cases are rarely resolved through simple explanations. They require a structured legal analysis of use, timing, intention, and the interaction between the self-supply rules and exempt supplies.
The Role of a Toronto Tax Lawyer in Builder Audits
CRA builder audits involve overlapping provisions of the Excise Tax Act and fact-driven determinations. A Toronto tax lawyer can assess whether CRA has applied the correct exemption, whether self-supply should have occurred, or whether the property sale was exempt despite the builder classification.
In many cases, properly identifying and arguing the applicable exemption can eliminate the GST/HST assessment entirely, without the need for litigation.
Kirshen Tax Law Can Help
Kirshen Tax Law represents taxpayers in CRA builder audits involving GST/HST on residential property sales, self-supply assessments, and denied exemptions. We regularly act where CRA has determined a taxpayer to be a builder but failed to apply Schedule V or section 191 exemptions correctly.
Kirshen Tax Law offers a free consultation with a Toronto tax lawyer to review your CRA builder audit, assess which GST/HST exemptions apply, and determine how you can challenge an incorrect reassessment.
Jeff Kirshen BA, JD (CA), JD (US)
Tax Lawyer | Founder, Kirshen Tax Law
Disclaimer
The content on this website, including articles and blog posts, is provided for general informational purposes only. It reflects the laws and regulations as of the date of publication, which may have since changed. This content is not intended to serve as legal advice and should not be relied upon as such. Tax laws and situations can be complex and unique to each individual. The information provided may not apply to your specific circumstances. For personalized advice regarding your tax or legal matters, we recommend consulting a qualified lawyer.