When do I need to register for HST?

You must register for HST if your worldwide taxable supplies (revenue) exceed $30,000 over four consecutive calendar quarters or in a single quarter. You can also voluntarily register before reaching this threshold to claim ITCs on startup expenses.

What's the quick method for HST?

The quick method is a simplified way to calculate your HST remittance. Instead of tracking ITCs, you remit a fixed percentage of your revenue (usually 8.8% for service businesses in Ontario). It's often beneficial for service businesses with few input expenses.

How often do I need to file HST?

Filing frequency depends on your annual revenue: under $1.5M files annually, $1.5M-$6M files quarterly, and over $6M files monthly. CRA may also assign a different frequency based on your history.

What are Input Tax Credits (ITCs)?

ITCs are the HST you paid on business expenses that you can claim back against the HST you collected. Proper ITC tracking can significantly reduce your HST remittance or generate a refund.

What happens if I file HST late?

CRA charges a penalty of 1% of the balance owing, plus 0.25% for each month late (up to 12 months). Interest also accrues daily. We help you stay on schedule and avoid these costly penalties.

HST Filing & Remittance

Never miss an HST deadline again. We prepare accurate returns, claim every eligible input tax credit, and keep you CRA-compliant.

Get a Free Quote Call (905) 334-4611

5.0-StarGoogle Rated (8 Reviews)

30+Years Experience

CRAAuthorized e-filer

HST Made Simple

HST trips up a lot of small business owners. When do I register? Am I collecting the right amount? What counts as an input tax credit? These are questions we hear every week.

Getting it wrong means penalties, interest, and uncomfortable letters from CRA. Getting it right means more money in your pocket and one less thing to worry about.

Ontario Tax Team handles HST filing for hundreds of businesses across Southern Ontario and the GTA. We prepare your returns accurately, claim every eligible ITC, and file on time. Every time. If you have employees, we can also handle your payroll and remittances so all of your CRA obligations are covered.

What's Included

HST Returns & Filing

Quarterly, annual, or monthly HST return preparation
Accurate reporting of taxable supplies
Deadline tracking and on-time filing
HST registration for new businesses

ITC Optimization

Identify and claim every eligible input tax credit
Quick method vs. standard method analysis
Maximize refunds or reduce remittance amounts
Proper documentation and record keeping

Compliance & Support

CRA audit support for HST reviews
Document requests and reassessment responses
Penalty and interest relief applications
Voluntary disclosure assistance

How It Works

Review Your Books

We review your bookkeeping records to make sure all HST collected and paid is properly tracked.

Prepare Your Return

We calculate your net HST, claim all eligible ITCs, and prepare your return for filing.

File & Remit

We file your return with CRA on time and coordinate any remittance or refund on your behalf.

What Our Clients Say

Real reviews from real clients on Google.

“I recommend this accounting team highly enough! They have been handling my personal and business taxes for over 30 years, and their service has been absolutely excellent. They make the entire tax season completely stress-free. Navigating business tax returns and personal accounting can be overwhelming, but they are always a pleasure to deal with—they are genuinely good, easy-going people who take the time to explain everything clearly. If you are looking for highly professional, reliable, and expert tax preparation services, look no further. I couldn't imagine trusting anyone else with my finances!”

Serene

3 weeks ago

“Samer helped me file my personal taxes for the past 7 years. Met up at the office & asked many questions to understand the process, highly recommended”

Atikur Rahman

3 weeks ago

“Samer was a great accountant! He is efficient, precise and attentive to my needs. I was happy with the quick turn around time. He was very professional.”

Kare4ly ....

a month ago

“I'm self employed and honestly had no idea how many deductions I was leaving on the table. Samer walked me through everything expenses I never knew I could claim on my personal tax return. Thanks to his guidance, I ended up with a significantly bigger refund than I expected. If you're self-employed and filing personal taxes in Ontario, this is the team to go to. Highly recommend.”

yamen rashwani

a month ago

“Samer is an amazing person that really helped out my father with taxes, he’s personable and really knowledgeable. If you need any tax help be sure to call to have everything taken care of fast and smoothly!”

Matthew Dusome

a month ago

Read all 8reviews on Google →

HST Filing Deadlines

Filing Frequency

Annual (under $1.5M revenue)

Deadline

3 months after fiscal year end

Example

Dec 31 year end = Due March 31

Filing Frequency

Quarterly

Deadline

1 month after quarter end

Example

Q1 (Jan-Mar) = Due April 30

Filing Frequency

Monthly

Deadline

1 month after period end

Example

January = Due February 28

Frequently Asked Questions

Find hst filing services in your city

Oakville

Ready to Take Control of Your Finances?

Book a free 15-minute consultation and let's talk about how we can help your business thrive.

Book Free Consultation Call (905) 334-4611

HST Filing & Remittance

HST Made Simple

What's Included

How It Works

Review Your Books

Prepare Your Return

File & Remit

What Our Clients Say

HST Filing Deadlines

Frequently Asked Questions

Find hst filing services in your city

Related Articles

HST Filing Deadlines 2026

How to Register for HST

Small Business Tax Deductions

Ready to Take Control of Your Finances?