We simplify cross-border tax.

Unbordered provides cross-border tax services to clients throughout North America.

We are not a full-service firm (see our services and FAQ pages for more information). Instead, we focus on our core competency – providing advisory and compliance services to individuals and businesses with Canadian/U.S. cross-border complications. Essentially, you qualify to be a client if your tax situation involves more than one country.

We aim to keep things simple for our clients, to work efficiently through streamlined processes and systems, and to offer great value and quality service. Our clients dread tax season a lot less.


Jeremy launched the firm in July 2014. Cross-border tax was a big part of our service mix from the start, but as the years passed it grew to become the heart of who we are – a firm dedicated to providing cross-border tax compliance and planning services. Acknowledging this evolution of our identity, we rebranded the firm from Halifax Tax Consultancy Inc. to Unbordered Tax Inc. in October 2019.


Jeremy Bast, CPA, CGA, EA


Educated at the University of Toronto and Wilfrid Laurier University, Jeremy spent the first decade of his career (1998-2009) in the tax departments of Arthur Andersen and Grant Thornton. This period gave him a solid grounding in Canadian and U.S. compliance and planning.

After gaining further experience at a local firm in Wolfville, Nova Scotia, Jeremy launched our firm in July 2014 to continue to focus on the thing he does best – providing cross-border tax services with a unique emphasis on responsiveness, quality and value.

Darrell Crawshaw, CPA, CA, EA

Senior Manager

Educated at St. Mary’s University in Halifax, where he graduated summa cum laude in 2005, Darrell began his career at KPMG. After spending four years in the Audit and Assurance group, Darrell transitioned to their tax department in 2008, where he gained experience in Canadian and U.S. compliance and Canadian and cross-border tax planning.

In 2012 Darrell returned to his roots in the South Shore of Nova Scotia, joining the tax department of AC Belliveau Veinotte in Bridgewater. His focus at Belliveau Veinotte was U.S. tax compliance, business valuation and tax planning engagements for owner-managers and their businesses.

Darrell joined Unbordered in 2016 as a Senior Manager. Darrell is our relationship manager for clients and referral sources on Nova Scotia’s South Shore.

Our firm has been using Halifax Tax Consultancy services for many years, and we are extremely thankful for their pragmatic advice. Over the past few years, the experts at Halifax Tax Consultancy breakdown the tax complexity into understandable language that we and our clients appreciate. It’s like having your own in-house tax specialist in the office next door!

Harold, Nova Scotia

I have had the pleasure of working with Jeremy Bast for over 10 years. His extraordinary attention to detail and his exemplary level of customer service have afforded both me and my clients an absolute level of comfort in the tax advice and other services Jeremy provides.

Jeffrey, Nova Scotia