Behind on filings, or facing a notice. Both are routine engagements here.
Secure a fixed quote
Begin with the papers you already have. The engagement is priced from them, in writing, before the work.
24-hour helpline: +1 (416) 619-006826 pages in this section. Behind on filings, or facing a notice. Both are routine engagements here.
← All cross-border and international tax services
Every page in this section is written to the same standard: it opens with the block that exists nowhere else on the site — a threshold, a treaty article, a rule that applies to one group and not the one beside it — and it carries one worked example, worked through in full rather than a set of generalities.
Where a page needs a statutory threshold, a rate or a day-count, that figure is verified against the issuing authority before it ships. Where it cannot be verified for the year in question, the page states the mechanism and quotes no number, because a wrong threshold on a page like this is worse than no page at all. Every statutory page also carries the name of the person who reviewed it and the date they did.
Fees are fixed and agreed in writing before any work begins, and you review the finished work before it is filed. Documents move through a secure portal and you can meet us at any of our offices, so where you are makes no difference to how it works.
Reviewed for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. General information, not advice for your circumstances — call our 24-hour helpline to discuss your own position.
26 pages. Behind on filings, or facing a notice. Both are routine engagements here. Each one opens with the part that applies to that situation and nowhere else — a threshold, a treaty article, a filing that one group owes and the group beside it does not — and works one example through in full.
The fee is fixed and agreed in writing before any work begins, priced from the documents you send rather than estimated afterwards, and it does not move once accepted. You see the finished work and approve it before anything is filed.
A named adviser reviews every return and every information filing before it goes out, and the statutory pages on this site carry the name of the person who reviewed them and the date they did it. You approve the finished work yourself as the last step.
Send what you have — a return, a notice, a set of statements, in whatever state it is in — through the secure portal after the first call, and you get a written fixed fee back. Or call the 24-hour helpline on +1 (416) 619-0068 and we will tell you what is needed.
Which return goes first decides whether relief can be claimed at all. That sequence is worked out before anything is submitted.
The practitioner who prepared and reviewed your file is the one who answers the question about it.
Quoted from your documents and agreed in writing. The number you accept is the number you pay.
If a file needs something this practice does not do, you hear that at the start rather than after a bill.
Quoted up front, in writing.
Contact Us 24-hour helpline +1 (416) 619-0068The claims on this site are deliberately few: fixed fees agreed in writing before work starts, 15+ years of cross-border experience, 18,000+ clients served across 4 global offices, and a helpline that answers 24 hours a day. Anything that cannot be evidenced does not go on a page.
We list coverage only where the article can be linked. What we say publicly, and where · Credentials and memberships · Read the reviews
Every link below is a full page of its own — the same depth as this one, for its own subject.
Where non-compliance was not inadvertent, the certification-based routes are unavailable and a different practice applies, with its own protections and its own price. Establishing which side of that line the facts fall on is done before contact is made.
Read how this one runsReasonable cause is a documented story with dates, not an assertion of good intent. The engagement assembles what the client actually knew and when, and puts the sequence in writing alongside the filings it explains.
Read how this one runsPosting missing returns without taking a view on the route gives up the certification-based protection and can itself be read as an indicator. The first task on these files is mapping which years remain eligible for which route.
Read how this one runsA pricing adjustment taxes the same profit twice unless the other country makes a corresponding one. The mutual agreement route is what produces that relief, and it is opened on a timetable set by the treaty rather than by either revenue authority.
Read how this one runsThe foreign asset return carries a penalty that accrues per day rather than per return, so the exposure grows quietly. Relief is discretionary and it is granted on the reasons given, which means the request is the work rather than the form.
Read how this one runsUS shares and US real estate sit inside the US estate tax net regardless of where the owner lives. The treaty provides relief that is proportionate rather than automatic, and the calculation depends on the worldwide estate.
Read how this one runsNearly every relief in a mobility file — treaty exemption, residence, social security — is decided by a day count that has to be evidenced. The engagement puts the tracking in place at the start, because it cannot be reconstructed at the end.
Read how this one runsEmployment carried out in Canada is taxable here even where the employer and the bank account are not. The engagement establishes how many of the days were worked in Canada, applies the treaty employment article, and deals with the withholding the payer has already taken.
Read how this one runsAll case studies — every published engagement in one place.
Strategy and compliance for income, assets and families spread across borders.
Performance income is taxed where earned — Regulation 105 in Canada, withholding agreements in the U.S. — with special treaty articles overriding the usual rules.
Performance income is taxed where the performance happens, and the deduction is usually taken at source on the gross fee before expenses. Recovering the difference is a filing exercise in the other country, and it only works if the tour, the residency and the withholding certificates were documented while the work was being done.
Where our partners studied — CPA Canada (In-Depth Tax Program), AICPA, the Institute of Chartered Accountants of India and the Malaysian Institute of Accountants.
