• Assist with advisory projects on personal income tax and social security questions for all active countries • Determine and assess best equity options and payments • Moving forward work with the payroll department at determining the fund flow that will allow the tax efficiency regarding the salary packages and benefits in the different countries • Assess on local tax exposures in the different countries upon the ongoing (personal income tax and social security perspective) • Help the team with any tax question arising from clients • Build documentation resources to address recurring and potential customer questions around tax

• Join our dynamic tax team as Tax Analyst, where you'll take an active part in helping clients navigate complex state unemployment insurance (SUI) tax matters. • Ensure accuracy of unemployment insurance (UI) tax rates and resolve discrepancies with state agencies. • Develop strategies to improve client tax positions and support planning through reports and projections. • Manage incoming tax documents, maintain organized records, and ensure compliance through agency communication. • Provide informed analysis and contribute to strategic discussions to support client decision-making.

• Ensure accurate application of backup withholding and NRA withholding rates on reportable transactions • Monitor and ensure timely withholding tax deposits in accordance with IRS requirements • Reconcile withholding tax liabilities and support preparation of Form 945 and Form 1042 • Monitor withholding rate changes and coordinate system updates accordingly • Track and respond to IRS notices including B-notices, C-notices, and withholding tax assessments • Support withholding tax audits and tax authority requests • Research and analyze U.S. withholding tax developments and assess impact on Coinbase operations • Identify and implement improvements to withholding tax processes and procedures • Respond to inquiries from product, onboarding, and customer support teams regarding U.S. withholding tax requirements • Partner with product and data teams on system requirements and business rules for withholding tax processes • Support customer service teams through internal education and customer escalations related to withholding tax • Coordinate across departments including product, data analytics, onboarding, customer service, and communications

Who We Are About TSS Advisors Founded in 1986, Tyler, Simms & St. Sauveur has grown to become the largest professional advisory firm headquartered in the Upper Connecticut River Valley of New Hampshire and Vermont. With over 50 employees dedicated to the broad range of clients and mix of services seldom seen in a local firm, we have experience and expertise to assist our clients in meeting their goals, whether individuals or business entities, regardless of their size or industry. At TSS, we recognize that professionals today need to be business consultants, advisors, planners and strategists. We need to be knowledgeable not only in accounting and tax law, but also in business analysis and valuation, estate planning, employee benefit administration and much more. As an independent member of CPAmerica, we have access to resources from the Crowe Global network that consists of more than 200 independent accounting and advisory services firms. Over the last few years, we have acknowledged and embraced the fact that the accounting profession and industry is evolving. With this, we are taking our commitment to excellence to a new level by partnering with Ascend ! This will accelerate our strategic growth model by providing access to unlimited resources and additional partnership opportunities. About Ascend Backed by private equity from people-focused Alpine Investors, Ascend is building a dynamic platform for regional accounting firms that enables them to stay independent while accessing the resources of a Top 25 firm to help them grow. Ascend provides access to growth capital, robust talent acquisition and training, leading quality management resources, best-of-breed technology, AI tools, an offshore captive, shared back-office services, a catalytic leadership system, and modernized equity incentives so that firms can surmount today’s industry challenges to reach their full potential. For more information, visit www.ascendtogether.com. The Role We’re looking for a talented and motivated Senior Tax Manager to join a fast-growing, innovative professional advisory firm working with closely held businesses in the automotive retail, construction, manufacturing, distribution, and other for-profit industries. Our ideal candidate is a self-motivated, entrepreneurial person with a team mentality and strong technical accounting and tax knowledge. You will be responsible for leading tax engagements and supervising a team of support staff. Our position provides a unique opportunity for significant growth within our firm, working directly with business owners and their financial professionals. Responsibilities Lead and support a strong portfolio of auto dealership clients, in addition to engagements across other industries Occasional travel to auto dealership industry conferences across the U.S. - typically 3 per year in notable locations (such as Las Vegas, Napa, and Charleston) Provide initial and/or final review support for federal, state, and multi-state individual tax returns for corporate business owners and high net worth individuals Build client relationships and serve as trusted advisor to effectively deliver superior client services Identify opportunities for value-added services and potential cross-selling of other firm services to existing clients Exemplary leadership skills and the ability to mentor, train, and develop staff members Support partner team in practice development; including attending conferences, networking events, and training and speaking engagements Requirements Work eligibility and compensation Voluntary demographic & self-ID questions At Ascend, we provide a fair and equal employment opportunity for all candidates regardless of race, color, religion, national origin, gender, pregnancy, sexual orientation, gender identity/expression, age, marital status, disability, or any other legally protected characteristic. Ascend hires and promotes individuals solely based on qualifications for the position to be filled and business needs.