A project of Bestax Accountants
Accounting Firm in Mississauga, Ontario
Flat-fee bookkeeping, tax, and payroll for Mississauga businesses, reviewed by expert accountants before anything reaches CRA.
4.8
4.1
“Their accounting and bookkeeping services in Mississauga are unmatched. The team is expert, friendly, and keeps everything on track. They’ve been a game-changer for my business books.”
Most Mississauga businesses don't have an in-house accountant, which means bookkeeping, tax, and payroll fall on the owner until something goes wrong. We handle that work directly, so the next CRA letter doesn't turn into a scramble.
We're a local practice, not a referral service or a directory. Every service on this page is delivered by our own Mississauga team.
There's no sales script and no lengthy onboarding. A short call or email is usually enough to tell whether it's a fit, and a flat quote follows before any work begins.
Reach out
A short call or email about what's going on with your books or filings.
Free consultation
We look at the situation and tell you honestly whether it's a fit.
Flat quote
A fixed price in writing before any work starts. No hourly surprises.
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What does a late CRA filing actually cost?
Estimated penalty (5% + 1%/month)
$2,250
First-time late filing on an income tax balance. Repeat offences within three years double these rates.
Expert Oversight
Every file is reviewed by an expert accountant, not just a bookkeeper with software access.
Flat-Fee Pricing
You get a fixed quote after a free consultation. No hourly billing surprises on your invoice.
Same-Day Response
Open Monday to Saturday, 9 a.m. to 8 p.m., with one dedicated contact for your file.
How We Handle Your Accounts
Your bookkeeper handles day-to-day recording. Our expert accountants review everything before it reaches CRA, so problems get caught before they become penalties.
That review step is usually the gap we find when a business switches to us from a solo bookkeeper or a DIY software setup: nobody was checking the numbers before they were filed.
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Where your file goes
Bookkeeper records everything
Invoices, receipts, bank feeds, and reconciliations captured day-to-day in the software you already run.
Why Not Just Do It Yourself?
DIY bookkeeping eats hours every week, and Ontario's HST and payroll rules trip up even careful owners. We catch errors before CRA does, and know Mississauga's local rules better than a national call centre.
Late HST filings carry penalties starting at 1% of the amount owed, plus 25% of that for each month it's late. One missed quarter can wipe out whatever you saved by not hiring help.
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What is DIY really costing you?
≈ 260 hours
a year spent on bookkeeping instead of the business
At $50/hr of owner time, that's $13,000 a year, more than most flat-fee packages.
What We Handle
Bookkeeping, tax filing, HST/GST, payroll, financial reporting, and audit support, standalone or bundled into one flat-fee package.
Most clients start with a single service and add more once the relationship proves itself.
Everything, one flat fee
What's included
Transparent, Flat-Fee Pricing
Every engagement gets a fixed price after a free consultation, not an hourly guess. See typical ranges below, or request a custom quote for your exact situation.
Your actual quote depends on transaction volume and how clean your books already are. A firm that won't quote a flat fee upfront is telling you something.
| Service | Typical Range (CAD) | Billing Basis |
|---|---|---|
| Bookkeeping | $200 to $600 | Per month |
| Personal Tax Return (T1) | $150 to $400 | Per return |
| Corporate Tax Return (T2) | $800 to $2,500 | Per return, per year-end |
| HST/GST Filing | $80 to $100 | Per month |
| Payroll | $30 to $60 | Per employee, per month |
| Backlog Accounting | Quoted after review | One-time project |
| Audit / Assurance Review | Quoted after review | Per engagement |
All fees are in CAD, fixed in writing before work starts. No setup fees, no cancellation fees.
Request a custom quote →Interactive · Build your quote
Estimate your monthly cost
Typical monthly range
$430 – $1,000 / mo
Your flat quote is fixed after a free consultation. Year-end T2 filing ($800 to $2,500) billed separately.
Key CRA Deadlines
Personal returns are due April 30, self-employed individuals get until June 15 to file (balance still due April 30), and corporations file within six months of their fiscal year-end.
Miss a deadline and CRA charges 5% of the balance owing immediately, plus 1% per month for up to twelve months. We track every date below so you don't have to.
| Filing Type | Deadline |
|---|---|
| Personal Income Tax (T1) | April 30in 293 days |
| Self-Employed T1 | June 15 (balance still due April 30)in 339 days |
| Corporate Tax Return (T2) | 6 months after fiscal year-end |
| Corporate Tax Balance (CCPC, small business rate) | 3 months after year-end |
| Corporate Tax Balance (other corporations) | 2 months after year-end |
| HST/GST (monthly filer) | 1 month after period-end |
| HST/GST (quarterly filer) | 1 month after quarter-end |
| HST/GST (annual filer) | 3 months after fiscal year-end |
Why Choose Us
Most Mississauga businesses end up choosing between a slow national brand or an overwhelmed solo bookkeeper. We sit in between: real expert accountants, small enough that one person actually knows your file.
Most new clients come to us through a referral, not an ad. When someone puts their name behind a recommendation, we don't get to have an off month.
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Where We Work
Port Credit, Streetsville, Meadowvale, Erin Mills, Cooksville, Clarkson, Malton, and City Centre. Restaurants, real estate investors, e-commerce sellers, contractors, and self-employed professionals.
4.8 out of 5
Trusted by Mississauga Clients
4.8 Out of 5, Based on Verified Google Reviews
These are real reviews from real clients, not testimonials we picked and polished ourselves. Read them directly on Google before you decide.
Read our Google reviewsGet a Free Consultation With a Mississauga Accountant
Tell us what's going on with your books or your last CRA letter. You'll get a flat quote before you commit to anything, and you can reach the team monday to saturday, 9:00 am to 8:00 pm.
Call +1 416 991 0900
Free Consultation
Tell Us What You Need. Get a Real Answer Back.
No sales script, no obligation. Describe your situation once and an accounting specialist will follow up with a straight answer and a flat quote.
- Flat-fee quote before any work starts
- Response within one business day
- Reviewed by an expert accountant, not just a bookkeeper
Frequently Asked Questions
Is this a Mississauga-based accounting firm?
Yes. Accounting Firm Mississauga operates from 1470 Hurontario Street in Mississauga and works with clients across the city.
Do I need to visit the office in person?
No. Most clients handle everything by phone, email, or video call, and only visit the Hurontario Street office when they want to.
How fast can this firm take over my bookkeeping?
Most new clients are fully onboarded within one to two weeks, faster if the books are already close to current.
Can you fix years of unfiled HST returns?
Yes. Backlog accounting is one of the core services here, and CRA's voluntary disclosure program can reduce penalties on old filings in many cases.
Do you work with both incorporated and unincorporated businesses?
Yes. T1 returns are filed for sole proprietors and freelancers, and T2 returns are filed for incorporated companies, whichever structure your business already uses.
What industries does this firm have the most experience with?
Restaurants, real estate investors, e-commerce sellers, contractors, and self-employed professionals make up most of the Mississauga client base.
Is there a free consultation?
Yes. A free initial consultation reviews your situation before quoting a flat fee.
What happens if I get a CRA audit letter?
Contact this office before responding to CRA. A dedicated contact reviews the letter, checks the file, and manages the response with you.