Scotland, UK: As more business owners expand across the Atlantic, a growing number are learning the hard way that international tax isn’t something to figure out later. SE Tax Professionals, a boutique cross-border advisory firm, is helping businesses avoid six-figure penalties by getting their tax strategy right, before costly mistakes are made.
Founded by dual-qualified tax advisor Sarah Eddie, SE Tax Professionals specialises in UK and US tax advisory for established business owners earning between £2M and £10M annually, with teams in place and ambitions to grow internationally.
“Too many companies reach out after they’ve already triggered fines or fallen out of compliance,” says Sarah Eddie. “The US tax system in particular can be unforgiving. Simple reporting errors or missed filings can lead to penalties in the hundreds of thousands.”
One of the firm’s recent clients, a UK-based energy company, narrowly avoided major IRS penalties after expanding into the US without tailored advice. SE Tax Professionals stepped in, corrected key compliance issues, and helped the business avoid a financial and operational setback.
Proactive, Not Reactive: SE Tax Professionals stands out in a field dominated by large firms by offering a hands-on, strategic approach to international tax. With qualifications and experience in both UK and US tax law, Sarah offers rare cross-border insight and a direct line of communication, something clients say is missing from big-name advisors.
“We work with business owners who are already successful and thinking about their next move, whether that’s entering the US market, opening a UK entity, or hiring internationally,” Eddie explains. “Tax shouldn’t be an afterthought. It’s a strategic tool to manage risk and enable growth.”
Growth Built on Trust: Launched in 2020, SE Tax Professionals saw rapid growth during the pandemic, guiding clients through changing legislation and helping them access cross-border funding. Today, the firm advises businesses across multiple sectors, offering bespoke tax planning, risk mitigation, and international compliance support.
Sarah’s recent participation in New York’s Tartan Week, a global business and culture event promoting investment between the US and Scotland, underscores her commitment to supporting transatlantic business growth.
“Whether you are a US investor entering the UK, or a British business setting up stateside, the risks are real, but so are the opportunities,” Eddie says. “Our role is to protect our clients from the former so they can focus on the latter.”
About SE Tax Professionals
SE Tax Professionals is a specialist cross-border tax advisory firm founded by dual-qualified UK/US tax advisor Sarah Eddie. The firm supports high-net-worth business owners expanding into the US and UK, offering bespoke tax planning, compliance, and strategic risk management.
Avoiding Six-Figure Mistakes: The Tax Firm Helping Ambitious Business Owners Expand Across the Atlantic
Cross-border growth comes with opportunity, and hidden tax risks that can cost you six figures or more. For UK and US business owners earning between £2M and £10M and looking to scale internationally, getting the tax piece wrong isn’t just a headache, it’s a liability.
That’s where SE Tax Professionals steps in. Founded by dual-qualified tax advisor Sarah Eddie, the firm specialises in helping successful business owners stay compliant while expanding into the UK or US. With deep expertise in both jurisdictions, Sarah and her team prevent costly tax mistakes before they happen.
“Too often, clients come to us after they’ve already started up,” Sarah says. “They’ve opened a company in the US or set up a UK entity without the right tax strategy. Unfortunately, the US tax system, in particular, isn’t very forgiving. Minor errors can lead to six-figure penalties.”
One of Sarah’s clients, a mid-size energy firm, had expanded into the US without tailored tax guidance. The result? Reporting errors that nearly triggered severe IRS penalties. With SE Tax Professionals’ help, they got back on track just in time.
“It’s a story we see more often than we’d like,” Sarah says. “But it’s avoidable, if you treat tax as part of your growth strategy, and not an afterthought.”
SE Tax Professionals is built for established businesses ready to scale. Most of their clients are already turning over seven figures and have solid teams in place. They’re not looking for cookie-cutter advice from a faceless Big Four office, —they want strategic guidance from someone who understands the nuances of international growth.
That’s exactly why Sarah left a Big Four firm in 2020 to start SE Tax Professionals. She wanted to offer a more personal, agile service—without compromising on expertise.
And it’s working. During the pandemic, her firm grew fast, helping clients navigate cross-border funding and constantly shifting tax policies. But growth is only part of the mission.
“We don’t just help clients pay less tax,” Sarah says. “We help them reduce risk. And when you’re operating across borders, risk is the real cost driver.”
From missed filings to incorrect entity structures, the mistakes can seem small, but the penalties rarely are. In the US, for example, failing to file the right form for a foreign subsidiary can lead to automatic fines. Certain types of income or business structures that are straightforward in the UK can be red flags for US authorities, and vice versa.
Many of Sarah’s clients come to her as they feel the larger firms are too impersonal or reactive. “They want personal support, someone who gets their business. Who understands what it means to grow, hire internationally, or move capital across borders. They want answers, not jargon.”
SE Tax Professionals thrives at that strategic crossroads, where ambition meets complexity. Whether it’s structuring your US launch or cleaning up legacy issues before expanding into the UK, Sarah’s team works proactively to make sure your business isn’t just compliant, it’s future-proof.
Recently, Sarah joined investors and business leaders at Tartan Week in New York, advocating for stronger cross-border investment ties. Her message was simple: the right tax advisor can unlock opportunity, not just manage risk.
“If you’re moving between the US and UK, you need someone who lives and works in both systems,” she says. “Because in international tax, prevention isn’t just smart, it could save your business.”
SE Tax Professionals Contact:
Sarah Eddie, https://www.linkedin.com/in/sarah-eddie-setaxpros/
Media Contact:
Wendy Sneddon, wendy@sbn.scot.
07595 117295
