Sales Tax Compliance

GST/HST Registration & Sales Tax

We register your GST/HST account, calculate eligible Input Tax Credits, and file your periodic sales tax returns.

CRA-authorized e-filer Serving Ontario & all of Canada Transparent, fixed quotes

Service Overview

Navigating sales tax rules in Canada requires continuous vigilance. We assist businesses with registering for a GST/HST account once mandatory thresholds are crossed (or voluntarily to recover startup input tax credits), calculate eligible ITCs on business expenditures, and file periodic sales tax returns.

Once registered, a business is generally required to charge GST/HST on its taxable sales, track Input Tax Credits on eligible business expenses, and file returns on the frequency the CRA assigns — monthly, quarterly, or annually, based on revenue. Getting the registration timing, rate, and filing frequency right from the start helps avoid interest charges or a larger-than-expected bill down the road.

Ideal forBusinesses with gross annual revenues over $30,000, e-commerce sellers, and commercial landlords.

What’s included

  • GST/HST account registration with Canada Revenue Agency
  • Monthly, quarterly, and annual GST/HST sales tax return preparation and filing
  • Input Tax Credit (ITC) calculation and maximum expense tax recovery
  • Quick Method of Accounting election and evaluation for small businesses
  • Cross-provincial sales tax rules (PST in BC/SK/MB, QST in Quebec)
  • Sales tax audit preparation, documentation organization, and CRA defense

Why choose Lira Tax for GST/HST Registration

Certified expertise, proactive planning, and clear communication — on every engagement.

Registration timing matters

Registering too early or too late can both have downsides — the CRA's rules determine exactly when registration becomes mandatory versus optional.

Input Tax Credits are easy to under-claim

Every eligible business expense carries a recoverable GST/HST component, and Input Tax Credits are commonly missed without a careful review of expenses.

Filing frequency is assigned, not chosen

The CRA assigns a monthly, quarterly, or annual filing frequency based on revenue, and each period has its own return and payment deadline to track.

GST/HST Registration — frequently asked questions

Straight answers about how this service works and what we need from you.

Registration is generally required once total taxable revenue exceeds $30,000 over four consecutive calendar quarters (or in a single calendar quarter). Below that threshold, a business is considered a “small supplier” and registration is optional.

It can be, since voluntary registration allows a business to claim Input Tax Credits on its expenses — though it also means charging and remitting GST/HST on sales, so it depends on the specific numbers.

It's a simplified way to calculate net GST/HST owing using a set remittance rate instead of tracking Input Tax Credits on every purchase — available to eligible small businesses and often reduces bookkeeping effort.

Yes — provinces like British Columbia, Saskatchewan, and Manitoba have their own PST, and Quebec has QST, each with separate registration and filing requirements from GST/HST.

Let's get your GST/HST sorted

Book a free consultation. We'll review your registration status and filing obligations and give you a clear quote — no obligation.