GST/HST Returns Filed Correctly, On Time, Every Period
Registration, filing, input tax credit reviews, arrears catch-up and audit representation — everything your business needs to stay on the right side of Canada's sales tax rules.
HST mistakes are expensive. We prevent them.
GST/HST is where the CRA finds the most errors: unclaimed input tax credits, ITCs claimed without proper invoices, wrong place-of-supply rates on out-of-province sales, missed returns, and collected tax spent as cash flow.
The CRA treats collected GST/HST as trust money, which means directors can be personally liable when it is not remitted. Trim Tax manages the entire GST/HST cycle so every return is supported by reconciled books, every credit is documented and every remittance is planned.
We file for businesses in Ontario (13% HST), the Atlantic HST provinces, Alberta and other GST-only provinces (5%), and multi-province sellers dealing with a mix of HST, PST and QST. For online and marketplace sellers we determine place of supply and registration obligations province by province.
Registration, filing frequency and the Quick Method
Registration is mandatory once taxable worldwide revenue exceeds $30,000 in a single calendar quarter or over four consecutive quarters, but voluntary registration earlier can recover ITCs on startup costs. Filing frequency (monthly, quarterly or annual) depends on revenue and can be elected.
Service businesses under $400,000 in revenue may benefit from the Quick Method, which simplifies filing and often reduces net tax, while businesses with large purchases are usually better on the regular method. We run the comparison and make the elections for you.
GST/HST services
- GST/HST registration and choice of filing frequency
- Regular return preparation and NETFILE filing (GST34 / GST62), including annual filers with quarterly instalments
- Input tax credit review to maximise recoverable tax with compliant invoices and documentation
- Quick Method and Simplified Method eligibility analysis and elections
- Place-of-supply and rate determination for out-of-province, export and online sales
- PST (BC, Saskatchewan, Manitoba) and QST registration and filing coordination
- Catch-up filing of late and unfiled returns, including multi-year arrears
- Remittance and instalment planning to avoid interest and demands
- HST on real estate: new housing rebates, new residential rental property rebates, self-supply rules and commercial property
- Non-resident and digital-economy GST/HST registration for foreign sellers into Canada
- Rebate claims for public service bodies, charities and non-profits
- HST audit, desk-review and ITC-verification representation under CRA authorization
Who we help
Sole proprietors and corporations above the $30,000 small-supplier threshold
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Contractors, trades and construction companies with progress billings and holdbacks
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Restaurants, retailers and hospitality businesses
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eCommerce, marketplace and digital service providers selling across provinces
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Real estate builders, investors, renovators and property managers
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Professionals, consultants and agencies with out-of-province clients
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Businesses that have received an HST audit letter or a demand to file
Book a consultationWhy choose Trim Tax for GST/HST
- CPA review of every return, with ITCs tied to invoices before filing.
- Books and HST handled together, so the return always reconciles to the ledger — the first thing an auditor checks.
- Catch-up specialists: we have filed multi-year HST arrears for businesses that had never filed a return.
- Real estate HST expertise, including rebates, self-supply and assignment sales, where mistakes run into tens of thousands of dollars.
- Audit representation by the same team that prepared the returns.
- Calendar reminders and remittance planning so no period is missed again.
Frequently asked questions
Behind on HST or just want it done right?
Book a free consultation with a Trim Tax HST specialist — call 647 243-5076 or email info@trimtax.ca.
