
GST compliance and filing
GST Registration & Compliance Services
Every sale without proper GST registration is a risk. We fix it. GST compliance is central to expanding into these regions, and our tax advisors and accountants handle registration, filing and every GST obligation so you can focus on growth.
Trusted by leading companies in the industry:
What’s included in our GST service
We handle the full GST lifecycle so resident and non-resident businesses stay compliant in every GST jurisdiction they sell into:
GST registration
We determine where you’re required to register and complete the process, for residents and non-residents alike.
GST return filing
We prepare and file your returns on time, including dual-structure regimes like Canada’s GST/HST and provincial PST/QST.
Dual GST handling
We manage the federal-plus-provincial complexity in Canada and India so nothing is missed.
Registration requirements review
We confirm thresholds and obligations per country before you sell.
Deadline monitoring
We track filing and remittance dates and flag changes proactively.
Government communication
We handle correspondence with tax authorities on your behalf.
Coverage
GST jurisdictions we cover
GST regimes differ sharply by country, and getting the right registration and filing approach in each is where businesses get stuck. We cover the major GST jurisdictions, including:
- Canada: dual GST/HST plus provincial PST and Quebec’s QST, with separate returns where provinces run their own tax.
- India: dual Central GST and State GST structure.
- Singapore: simplified GST regime for non-resident digital service providers and marketplace facilitators.
- Australia and New Zealand: GST registration and filing for cross-border and digital suppliers.
Did you know two global economic powerhouses run a dual GST structure? Canada and India both apply Central (federal) GST alongside State or provincial GST, which means two distinct components make up the final rate on a supply. We manage that complexity for you.
GST compliance and filing
How it works

Free consultation & GST registration requirements
Share your business details and we’ll determine where and how to register for GST.

Tailor-made scheme for registration
We handle everything, from GST registration to government communication.

Assigned manager for GST return filing
We file, monitor changes, and update you proactively.
Who it’s for
GST registration and compliance built for businesses expanding across GST regions:
Non-resident e-commerce sellers
Crossing GST thresholds in Canada, Singapore, Australia or New Zealand.
SaaS and digital service providers
Selling to customers in GST countries.
Marketplace facilitators
Responsible for collecting and remitting GST on behalf of underlying suppliers.
Resident businesses
Needing help with dual-structure registration and multi-return filing.
Why 1stopVAT
Multi-jurisdiction GST coverage
We manage GST registration and filing across Canada, India, Singapore, Australia and New Zealand, including dual GST/HST and provincial returns.
Compliance partners
A strong network of tax consultants and local agents, so we cover local GST requirements with transparency and efficiency.
Reliable monitoring
Our reporting team tracks GST return deadlines and rule changes and notifies you in time, so you avoid penalties.
Certified experts
A team of 40+ specialists, certified members of IVA, AITC and the VAT Forum, serving 800+ clients across indirect tax regimes worldwide.
FAQ
Canada runs a dual-structure GST system, so the final GST on a transaction depends on both federal and local (provincial) rules. For example, a taxable supply in Quebec attracts two rates: federal GST and Quebec Sales Tax. A supplier with sales both inside and outside Quebec files two returns: a GST/HST return for sales elsewhere in Canada, and a QST return for Quebec sales.
It depends on your situation, mainly whether you’re a local business operating in Canada or a non-resident with no establishment there. In most cases registration is transparent, fast and online. We have extensive experience with GST registration and compliance in Canada for both.
GST and/or PST usually applies when a digital marketplace facilitator enables the supply of accommodation services between providers and customers in the country. Confirming taxability requires reviewing the terms between platform and provider, and the platform operator’s main activity, which we assess for you.
It depends on whether the supplier has a physical presence in the country. Singapore’s tax authority runs a simplified GST registration and filing framework for non-resident digital service providers.
No. Canada’s dual GST system means federal and provincial rates combine to set the rate on a supply. Some provinces use a Harmonized Sales Tax (HST) unifying federal GST and local PST, while others run PST independently. Registration requirements and filing procedures differ between GST/HST and PST returns, and between provinces that handle PST separately.
They vary by jurisdiction. In Canada, penalties and interest often result from late GST registration and filing, and provincial rules differ by place-of-supply. In India, late-filing penalties can start at ₹100 per day. In Singapore, non-resident digital service providers under the simplified regime face the same penalty and compliance rules as domestic GST-registered persons.
Registration for non-resident suppliers and e-marketplace operators rests on two cumulative conditions: global turnover, and B2C supplies of remote services and imported low-value goods where the place of supply is Singapore.
Yes. A GST-registered non-resident digital platform operator must collect and remit GST for third-party non-resident digital service providers supplying through its platform.
It depends where your Canadian customers are. If they’re in provinces outside the unified GST/HST regime, you’ll also need to register for provincial sales tax, for example in British Columbia or Manitoba.
Register for a FREE consultation
We offer a free consultation to better understand your needs. It could lead to a simple fix for your GST issues, or a longer working relationship. Let’s find the best solution for you.
Book a Free consultation
Security
Data privacy and compliance
Your data stays safe with us. We use top security to protect your information, so you can focus on what matters.





