Cross Border: Accounting, Tax & Advisory Services
Services
Individuals and Families
Businesses and Corporations
Accounting, Payroll and Advisory
Why Choose Tax Square
Our Values
Integrity
We operate with complete transparency. No hidden fees, no surprises. What we quote is what you pay.
Personalization
Every client is unique. We take time to understand your situation and craft solutions tailored specifically to your needs.
Expertise
Our professionals hold cross-border Canadian and US credentials and engage in continuous education to stay ahead of tax law changes in both countries.
Accessibility
Year-round support, fast response times, and a secure online portal — we are always available when you need us.
Our Commitment to You
- Licensed CPAs and tax professionals, credentialed in both Canada and the United States
- Year-round tax planning and support — not just during filing season
- Canadian tax expertise with coordinated Canada-US cross-border capability
- 100% in-house work — client information is never outsourced to third parties
- Secure, cloud-based document portal
- Personalized tax and accounting strategies for every client
Canadian Tax, Accounting and Cross-Border Advisory Services
Personal and corporate tax preparation, bookkeeping, payroll, business advisory, and Canada-US cross-border tax services for individuals and businesses in Mississauga, Oakville, Milton, and across Canada.
Personal and corporate tax preparation, bookkeeping, payroll, business advisory, and Canada-US cross-border tax services for individuals and businesses in Mississauga, Oakville, Milton, and across Canada.
Cross-Border Matters Require a Coordinated Approach
Canada and the United States apply different rules to residency, income sourcing, business entities, foreign assets, retirement accounts, and tax credits. A filing position that works in one country might create an unexpected obligation in the other.
Tax Square brings the Canadian and US sides of your situation together. We identify filing requirements, coordinate reporting positions, assess available treaty relief, and provide a practical compliance plan — starting from a strong foundation in Canadian tax and accounting.
Accounting and Bookkeeping Reliable records support
We organize incomplete records, reconcile balance-sheet accounts, investigate opening-balance differences, and prepare the books for tax filings or ongoing monthly service.
Our Core Services
From straight forward personal tax returns to complex cross-border corporate structures, Tax Square has the expertise to handle it all. Explore our full range of professional services:
- Personal Income Tax Preparation (T1 and all related schedules)
- Corporate Income Tax Returns (T2)
- Small Business & Self-Employed Tax (T2125, GST/HST)
- Bookkeeping & Financial Statement Preparation
- Payroll Processing & Compliance
- Business Registration & Incorporation
- QuickBooks and Accounting Software Setup, Migration and Training
- US Expat & Cross-Border Taxation for US Citizens and Green-Card Holders in Canada
- Cross-Border Canada-US Business Structuring and Expansion Planning
- Amazon Seller & E-Commerce Tax Compliance
- CRA Representation and Compliance Support
- Internal Controls & Risk Advisory
Future
TESTIMONIALS
What People Say About Us?
Adam Horage
The service is amazing and very professional. I have been dealing with Tax Square Professional for a couple of years and I truly appreciate Mr. Adnan and his team for the good services. Also the free parking was a big plus. I strongly recommend this office for all taxes, bookkeeping & payroll.
Amirpouyan Harandi
I highly recommend Source Accounting for their professional accounting and financial services. Very reliable and responsive team.
Kiran Abbas
Happy with the accounting services provided. The team is professional, efficient and always helpful. Highly satisfied with the service.
Future
Start With Your Facts
Cross-border outcomes depend on citizenship, residency, travel, ownership, income sources, entity classification, and prior filings. A consultation helps define the issue before returns or elections are prepared.
Future