HST/GST Audit Support
Facing an HST/GST audit or denied credits? Get your claims documented and explained.
CPA support for businesses dealing with HST/GST audits, denied input tax credits, missing or insufficient invoices, real-estate HST, cash-sales questions, or multi-year GST/HST exposure — calmly handled, properly documented.
Confidential, no-obligation consultation. CPA-led, Canada-wide and in Mississauga.
Overview
When CRA questions your HST/GST
HST/GST reviews tend to have a narrow focus and a tight timeline, and CRA can propose adjustments before you have had a real chance to gather your records. The first goal is straightforward: understand exactly which credits, periods, or filings CRA is looking at, locate the documents that support them, and respond in an organized, factual way. We help you read the request clearly, see what is actually at stake, and ground the conversation in the facts of your business rather than assumptions.
Common situations we help with
If any of these sound like your situation, you are in the right place:
- CRA has denied input tax credits, or proposed to deny them
- Some supplier invoices are missing, incomplete, or lack a valid GST/HST number
- Your business has real-estate HST exposure — new-build, rebates, or change-of-use
- CRA is asking about cash sales and whether reported revenue matches deposits
- An HST/GST reassessment has been proposed, or penalties and interest may apply
- There is multi-year GST/HST exposure across several reporting periods
- You are unsure how to respond — and do not want to make it worse
What working with us gives you
We bring structure to a stressful situation so you are never guessing. In practical terms, that means:
- A clear read of which credits, periods, and filings CRA is questioning
- Your input tax credit support located, organized, and tied to the records
- A reconciliation linking sales, deposits, and filings you can explain with confidence
- Clear written explanations and supporting schedules for your HST/GST position
- Plain-language updates so you understand the issue at every stage
Our approach
How we work an HST/GST audit
A clear path from the first request to a prepared, organized response.
Understand the issue
We review the CRA letter, the periods and credits in question, your filings, your records, and the deadline you are working with.
You know exactly what CRA wantsReconcile the numbers
We tie reported sales, deposits, and POS data together and reconcile them against your filed HST/GST returns to see where the numbers stand.
You see how the numbers fitDocument the ITCs
We locate and organize the supplier invoices and supporting records behind your input tax credit claims, and identify any documentation gaps to address.
Your claims are properly supportedRespond to CRA
We help you prepare and submit a measured, factual response, follow up on outstanding requests, and coordinate with legal counsel where the matter calls for it.
You're supported to the finish
Every CRA matter is easier to face with an organized, defensible response behind it.
Book a CRA Audit Strategy CallWhat to expect
What to expect
Every HST/GST review is different, but the documentation standards are consistent. Knowing the shape of it makes the process far less stressful.
- To support an input tax credit, CRA generally expects a valid supplier GST/HST registration and an invoice that meets the prescribed information requirements for the amount claimed.
- The required invoice details scale with the amount — larger purchases generally call for more complete supplier and tax information than small ones.
- Where supporting invoices are missing or incomplete, the related credit can be questioned until adequate documentation is provided.
- If CRA reassesses, there is generally a 90-day window to file a Notice of Objection — we help you understand and meet deadlines.
Be prepared
What CRA may request
So you know what to gather — and we help you locate, reconstruct, and present it.
HST/GST returns & working papers
- Filed GST/HST returns for the periods under review
- HST/GST working papers and reconciliations
Input-tax-credit support
- Supplier invoices showing the supplier's GST/HST registration number
- Contracts and agreements behind larger or recurring purchases
Sales & POS records
- Sales invoices and daily or POS sales reports
- Bank statements and deposit records for the periods under review
Import & real-estate documents
- Import documentation and GST paid at the border, where applicable
- Real-estate closing documents, rebate applications, and change-of-use records, where relevant
Scope
Working with tax lawyers when needed
Some HST/GST matters involve legal questions, potential penalties, or disputes that call for legal advice or representation. We do not provide legal services; where appropriate, we coordinate with qualified tax lawyers and support the file from the accounting and documentation side, so the legal and CPA work reinforce each other.
Before you call
Common questions
Why does CRA deny input tax credits?
Most denials come down to documentation rather than the purchase itself. Common reasons are a missing or incomplete invoice, a supplier GST/HST number that cannot be verified, or a claim that does not tie back to the underlying records. The usual path forward is to locate and organize the supporting documents so the claim is clear.
What records actually prove an input tax credit?
Generally, you need an invoice that shows the supplier's valid GST/HST registration number, the tax charged, and the prescribed details for the amount claimed, tied to a real purchase in your records. We review what you have, identify any gaps, and help you assemble compliant documentation.
How does HST work on new housing or real estate?
Real estate is one of the more complex HST areas — new-build HST, the new-housing and new-residential-rental rebates, change-of-use rules, and the timing of credits all interact. We help developers, investors, and builders document the intent and treatment of each transaction and respond when CRA questions a rebate or assessment.
What if we have registration or filing gaps?
Gaps in registration timing or in past filings are common and manageable. We help you quantify the issue, organize the records, correct the filings, and — where appropriate — consider voluntary disclosure, with each situation reviewed on its own facts.
Is my information kept confidential?
Yes. Reaching out is confidential, nothing is filed with CRA from an inquiry, and your details stay between you and our team.
What happens on the first call?
A short, no-obligation conversation to understand the issue, the periods involved, and the deadline you are working with. We will explain scope and next steps on that call. There's no commitment to proceed.
You're not in my city — can you still help?
Yes. We work with owner-managed businesses across Canada, with a presence in Mississauga and the GTA. HST/GST matters are handled effectively by phone, email, and secure document sharing.
Why owners trust us
Calm, credentialed, confidential.
- Chartered Professional Accountant (CPA)
- CPA Ontario · CPA Canada
- Audit-defence & tax-controversy focus
- Owner-managed businesses, Canada-wide
Everything you share is treated as confidential — nothing is filed with CRA from an inquiry, and your details stay with our team.
We provide CPA advisory and documentation support, and coordinate with qualified tax lawyers when a matter calls for legal advice.
Area served: Serving clients across Canada · Mississauga, ON & the GTA
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Dealing with an HST/GST audit or denied credits? Let's get organized.
Start with a confidential consultation. We will help you understand the HST/GST issue, what documentation is needed to support your claims, and the practical next steps available to you.
Everything you share is confidential. No obligation. Replies within one business day.