HST
GST/HST registration, quarterly and annual filings, input tax credits reviewed so you claim what you're owed — and housing rebates where they apply.
Chartered Professional Accountant · Scarborough
Ari A. Ariaran, CPA, CGA — business tax, corporate filings, and personal returns for Scarborough businesses and families. HST, payroll, WSIB, T2s and CRA audits handled in-house. Friendly service in English, Tamil and Sinhala, from a team clients have trusted for over a decade.
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What we do
Business tax is the heart of this practice — HST, payroll, WSIB, corporate filings and CRA audits — alongside personal returns and planning. We handle it, explain it, and stay reachable all year.
T1 returns for employees, families, students, seniors, and newcomers — with every credit you're entitled to.
Learn more →HST, payroll, WSIB calculations, corporate tax filing (T2), bookkeeping, incorporation and CRA audit support — a CPA-led team behind your business.
Learn more →RRSP and TFSA strategy, retirement income planning, and estate planning — so tax season decisions serve your long-term goals.
Learn more →For business owners
Most of what leaves this office is business work. If you run a corporation, a storefront, a trade or a fleet, these are the filings we do every week — on schedule, with the fee agreed before we start.
GST/HST registration, quarterly and annual filings, input tax credits reviewed so you claim what you're owed — and housing rebates where they apply.
Pay runs, source deductions and remittances, T4s and T4 summaries, ROEs and contractor payments — set up once and run on time every period.
Insurable earnings worked out correctly, premiums calculated and reported on schedule, and reconciliation at year end so you aren't caught by a shortfall.
T2 corporate returns and year-end financial statements, prepared from your books and walked through with you before anything is filed with the CRA.
If the CRA audits or reviews you, we represent you: records organized, questions answered, the process managed end to end — and the assessment disputed if it's wrong.
Monthly or quarterly books kept current, so HST, payroll and the year-end return all come out of one clean set of records.
For individuals & families
This is the list we work through. Most people are entitled to at least one thing on it that they did not know about. Scroll it — if something applies to you, bring it up at the free consultation.
Not sure which of these apply to you? That is exactly what the free consultation is for.Book a free consultation
Why not just use software?
Tax software does exactly what you tell it. It cannot know what you did not think to mention.
| Comparison | Doing it yourself | With Ari A. Ariaran, CPA |
|---|---|---|
| Credits you did not know to ask for | Only what you type in | Full review of your situation |
| Understanding the result | A number on a screen | Walked through with you before filing |
| Rental, self-employment, corporate | You are on your own with the rules | Handled in-house by a CPA-led team |
| A CRA letter in July | Your problem to answer | We answer it for you — no new bill |
| Years you never filed | Usually not supported | Caught up and adjusted, up to ten years back |
| Explaining it in your language | Not an option | English, Tamil or Sinhala — whichever you think in |
| What it costs | Cheap, plus your weekend and the risk | A clear fee, agreed before we start |

Why clients stay
You'll know the fee — including any extras like rental income schedules — before we touch your file.
Ask us for a quote →HST filings, payroll, WSIB calculations and remittances, corporate tax filing (T2), CRA audits and disputes, bookkeeping and incorporation — handled in-house by a CPA-led team.
Business services →Clients don't get passed around. You'll work with the same people — Ari, Stephen, Viji, Kavitha, Tharsy — year after year.
Meet the team →The kind of thing we find
None of these people thought they were missing anything. Each one had claimed what they knew about — and nothing they didn't. Yours may well be on this list.
Illustrative examples of common situations — not client records. Your numbers will be your own; bring them to a free consultation and we'll tell you honestly what we see.
Filed her own taxes for years while caring for her mother at home.
What we found: The caregiver credit and disability tax credit she never knew applied — claimed back for prior years too.
Drove for a living and rented out his basement — reported the income, missed the expenses.
What we found: Vehicle costs, home-office share, mortgage interest and repairs — properly documented and claimed.
Ran a growing contracting business as a sole proprietor because that's how he started.
What we found: Incorporation at the right moment, plus the right salary-and-dividend mix for his family's situation.
How it works
Drop by the office at Middlefield & McNicoll, or send everything through our secure client portal.
Your return is prepared by our team and walked through with you — what you owe or get back, and why — before anything is filed.
We file with the CRA and keep your records organized. CRA letter in July? Call us — that's included in the relationship.
Reviews
“I have been Ari's client since 2017 and is the best service I am experiencing since then. He got a very efficient and highly skilled team to serve my personal and corporation taxes.”
“I am extremely happy with the services & expertise provided by Ari and his staff. They helped me last 10 years... They are friendly & caring for you. I highly recommend their office for any body wants to do personal & business tax in GTA.”
“When I was facing a complex tax issue, he worked diligently to find a solution that minimized my tax liability. Also provided ongoing financial advice that helped me make informed decisions.”
Yes — most of our clients are served in Tamil, and we also serve clients in Sinhala. You can do everything, from the first call to the final review, in English, Tamil or Sinhala.
It depends on your situation — a simple return costs less than one with rental income or self-employment. We'll look at your slips and tell you the exact fee before we start, and nothing is added without your agreement.
Your slips (T4, T5, T4A…), last year's Notice of Assessment, receipts for deductions (RRSP, medical, donations, childcare), and rental or business records if they apply. Not sure? Call us — we'll tell you exactly what your situation needs.
Yes. We file adjustments for previous years, catch up unfiled returns, and respond to CRA reviews, audits, and disputes on your behalf.
Walk-ins are welcome, but during tax season an appointment saves you waiting. Book online in one minute, or call and we'll set a time.