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Business Tax Compliance Services
Managing business tax obligations across two countries, and all 50 US states, can quickly become challenging.
Constant regulatory changes, complex international reporting, and expanding multi-state requirements create real risks for businesses that need accuracy, efficiency, and compliance fully aligned with your commercial goals.
At DY USA, we focus exclusively on the UK–US tax landscape, helping businesses navigate cross-border tax with clarity and confidence. Our team delivers technical guidance and hands-on support, so you can stay focused on running your business.
including federal, state and local return preparation for corporations, partnerships and LLCs
covering foreign reporting and documentation for cross-border operations
to help minimize tax burden, optimize entity structures and utilize available credits, incentives and deductions
including nexus reviews, apportionment analysis and multi-state filing strategy
for mergers, acquisitions, divestitures and expansions
including consolidated returns, controlled foreign corporations and global intangible low-taxed income (GILTI).
Operating across the UK and US means managing two distinct tax systems, each with their own rules, deadlines and potential penalties.
Working with cross-border specialists helps your business:
Navigate two distinct tax systems with confidence
Stay compliant with the IRS and state authorities
Build a tax-efficient structure for short and long-term growth
Avoid double taxation and optimize profit repatriation
Reduce audit risk and stay ahead of regulatory changes
Support international operations with proactive, strategic planning
Prevent steep penalties tied to missed or non-extendable deadlines
Focused, holistic approach to UK-US tax planning, advisory and compliance for businesses and individuals
Personalized, seamless collaboration with your finance team and external advisors
Boutique, tailored tax advisory designed for your business structure and goals
A highly qualified tax team with extensive expertise, a collaborative and personable approach, and professional credentials in both the UK and US
A dedicated Client Manager as the primary point of contact, meeting with you quarterly to understand your business and goals and to deliver proactive, customized guidance and strategic insights
Clear responsive communication, transparent fees and proactive planning
Timely and accurate filings with the IRS to avoid penalties
Confidence that compliance needs are fully managed, accurate and audit-ready
Our team understands the nuances of UK–US tax requirements and provides clear, practical guidance that simplifies the process at every step.
Testimonials
Trusted by clients facing tax issues on both sides of the Atlantic.
Individual
We were unfamiliar with how the tax system works in the USA and certainly how to mix UK and USA tax requirements made it more challenging. Our initial conversations with Rob were the determining factors for our decision to move ahead with DY USA. We also needed to be certain that DY USA would have the tools to manage USA and UK accounts with local staff in each country. It felt re-assuring that we would engage with a firm that had the people, the experience, and the energy to partner with us along the journey. Plus, we liked the one-to-one feeling of having the same person dedicated to our business, rather than other firms (perhaps bigger and less personal touch).
DY USA always managed to get the figures, consolidation, and reports to the Board within a few days of month-end. That was one of the most important requirements for us plus the fact that they were able to effectively work with our accountancy platform.
The most valuable part of working with DY USA is the people. To start, Rob helped the organization with first steps towards moving to the US, followed by Joe and then Joel as our Account Managers. Never a bad word, slow, or negative. The personal touch by their team clearly helps them stand apart from other firms. I would highly recommend and would use myself should the opportunity arise again.
Tom Atienza-Avila
Tamworth, UK
Business
We’ve really enjoyed working with DY USA and see them very much as a trusted partner rather than just an adviser. From the start, the team took the time to understand both our business and the realities of operating across the US and UK, which made a big difference. Their advice is always clear, pragmatic, and grounded in what actually works for us commercially.
Just as importantly, they’re extremely responsive and easy to work with. We always feel supported, well informed, and confident in the decisions we’re making with DY USA alongside us.
Dan Carroll
Managing Director, BMS Tech Sales Inc, London / Delaware
Individual
I am a dual US/British citizen, originally American, who has lived in the UK since 1974. In 2015, DY USA started looking after my US taxes after decades of doing it on my own, with assistance of, at best, variable quality. During the 11 years since, they have provided a consistently excellent service, helping me navigate the complexity of preparing my US returns more efficiently and with less stress than before. I particularly appreciate the personal attention that DY USA offers; it’s a great comfort to be able to communicate with friendly people I have come to know and trust.
Philip Gray
Edinburgh, UK
Business
At XL Event Lab, we have been proud clients of DY USA for over 10 years, benefiting from their consistent professionalism and expert guidance. Their deep understanding of both UK and US financial landscapes has been instrumental in helping us successfully navigate operating across both markets. Our partnership with DY USA has given us the confidence and clarity needed to grow our business internationally while staying compliant and efficient.
Grahame F.
Glasgow, Scotland / Orlando, Florida
Business
We were naïve to the numerous filing requirements and US legislation, and our US accountant at the time was not knowledgeable about international companies. When I came across Rob Whittall, he explained the requirements simply and pointed out where we needed to alter our approach.
I am relieved that our business and taxes are in safe hands and delighted to have chosen DY USA as our accountants. We tidied up numerous historical inaccuracies and created a straight-forward and transparent correction with the IRS.
One of the most value pieces of working with DY USA is its one-to-one efficient system. The human element is so valuable, and time is freed up without lots of typical digital back and forth. If I have a question, it is answered swiftly and efficiently at any time. It’s not the typical annual scramble – everything works smoothly to a process but with a personal touch every time.
I recommend DY USA to anyone working transatlantic businesses!
Bryan Batstone
Director & CEO, The Salon House, Champaign, Illinois
Business
We were setting up a new business in the US and our UK accountants were not able to provide the accounting expertise needed. I met with Rob Whittall through an introduction by our UK accountants and thought Rob was very impressive. He understood the differences between UK and US accounting and gave me confidence that he would be able to help us to safely navigate the challenges associated with starting up a new business in California.
DY USA worked with us on compliant tax filings with the IRS and California and exceeded my expectations.
The team at DY USA provides a positive mix of formal, professional service with a friendly personal approach. I trust in DY USA’s guidance, and their support is incredibly valuable. Their expertise has enabled me to focus on growing the business as opposed to trying to manage the myriad of accounting compliance that comes along with operating in the USA.
DY USA provides important accounting support (advice, guidance and compliance support) in a very responsive way. They assign a dedicated accountant to support our business, so we get access to someone who is familiar with our business and the way we work. This is very important to us.
Jamie Hammond
CEO, Adept Management, Carlsbad, UK
Individual
I’m an American citizen who started a business in the UK. I chose DY USA because their team has not just read the guidance about being a dual citizen, they have lived it and faced the same challenges I do.
Anonymous
Location - UK
UK-US Business Tax Compliance Services
The combination of our specialized focus on UK-US cross-border tax requirements and personalized, advisory approach empowers you to make well-informed decisions that support long-term financial stability and peace of mind.
Take the complexity out of compliance.
Connect with our team and let us make tax compliance one less worry for you.
Answers
If your UK-registered entity has a US trade or business or earns income from US sources, it may be required to file US tax returns. Depending on how the business operates in the US, your UK entity may be subject to federal tax on that income or may qualify for an exemption under the UK–US tax treaty.
When a UK entity conducts a US trade or business and has a permanent establishment (PE) in the US under the UK–US tax treaty, it becomes subject to US federal taxation. However, the treaty does not apply to state taxes. A UK business may still owe state income tax if it has tax nexus in a state, even without a PE.
The W-8BEN-E is a tax form used by foreign entities—including UK companies—to certify their non-US status and claim tax treaty benefits. When a UK entity conducts a US trade or business or earns US-source income, the US payer may be required to withhold tax and send it to the IRS. If the UK entity qualifies for a reduced or zero withholding tax rate under the UK–US tax treaty, it must provide Form W-8BEN-E to the US payer to claim the treaty benefit and lower or eliminate withholding.
In the US, C corporations pay a flat federal tax rate of 21%, while individual federal income tax rates range from 0% to 37%. State and local tax rates vary and may apply depending on where the taxpayer lives or operates.
In the US, all meals, regardless of business purpose, are only 50% deductible on your tax return. This includes meal expenses incurred while traveling, entertaining clients or for staff. Entertainment expenses, such as tickets to sporting events or shows, are wholly non-deductible for US tax purposes.
Gifts given from a company are deductible up to $25 per recipient. Items that qualify as entertainment are considered non-deductible, even if they resemble gifts. Keep accurate, detailed records– including the description, amount, and date – to support gift deductions.
US employers are not federally required to offer pension plans, though some states may deviate and mandate coverage programs. These state level requirements can widely vary, with each state setting its own specific requirements.
US income taxes are paid during the tax year, not in arrears. The IRS requires quarterly estimated tax payments, based on either the current year or prior year’s tax liability, to avoid underpayment penalties.
*The FAQs provided are for general information purposes only. The information is not, and must not be treated as, professional advice.
