File your Federal and State Tax Returns!
USA Taxation
Navigating your tax journey with precision and ease is the key to for a hassle-free tax season.
Beyond offering services, we complement your journey with our commitment to Satisfaction
Success In Numbers
Our USA Tax Filing Services
Team Mercurius, with 25+ years of experience, specializes in delivering comprehensive USA tax filing services for our clients in the USA. These USA tax filing services are customized to meet the diverse needs of individuals, businesses, and organizations across the United States.
Understanding the complexities of the US tax system as well as the various types of companies, we are committed to providing you with personalized USA tax filing strategies and solutions. This enables us to maximize your benefits and minimize liabilities.
Whether you are a US resident or an alien-resident residing in the USA, whether you are a foreigner having a US company or a student studying in the USA, we are here to support you with expert USA tax filing assistance. Our team of tax experts is equipped with the knowledge and tools to ensure your USA tax filing is accurate and compliant per the regulations.

What Do We Provide?
Our USA tax services cover a wide range of needs, including
Federal Tax
State Income Tax
Sales Tax
State Annual Tax
Other Forms
Tailoring Success Across Industries
Mercurius delivers precise tax solutions backed by industry expertise, ensuring accurate and reliable results across all sectors.
Accounting, Tax and CPAs
Ecommerce and Retail

Law firms and Attorneys
Real Estate and Construction

Education and Coaching
Benefits of Partnering with Us
Client Testimonials
Great work – love the dedicated member of the team that is assigned to work on my account.
Graham Blair
Habitat Seven Inc 🇨🇦
Manvi and the team at Mercurius are excellent. We have been working with them for a number of years and they have been pivotal in keeping our accounts in good order.
Cameron Kincaid
Chemeyes Ltd 🇬🇧
Siddhartha is delightful to work with and always completes assignments ahead of schedule and with no iteration needed.
Mike Schoenfeld
MBS Consulting🇺🇸
Pleasant to work with, knowledgeable on accounting principles, responsive
Christine Atieno
Keys Please Homes🇺🇸
Sid and his team so excellent work – on time and very attentive to detail.
Joel Cape
Joel E Cape, PLC🇺🇸
Reasons to Choose Mercurius
200+ Ratings on Google
Approved by Thousands!
Experience the services that’s earned
us top ratings.

Attention to Detail
Our commitment to precision ensures that every aspect of your tax affairs is handled with the utmost care, leaving no stone unturned.

Data Security and Privacy
Your sensitive financial information is protected with state-of-the-art security measures, providing you with peace of mind.

Client Satisfaction
We prioritize your financial well-being and strive to exceed your expectations through personalized service and expert guidance.

Inhouse Tax Expertise
Our team of certified tax experts possesses extensive knowledge and experience to navigate the complexities of the tax landscape effectively.
FAQ
How can Mercurius assist with personal tax preparation and compliance?
We help individuals across the U.S. with accurate and timely preparation of USA tax filing, 1120S filing, and 1065 filing, along with e-filing of Form 1040 and related schedules, ITIN applications, and year-round compliance support. Our team ensures your filings are accurate, compliant, and optimized for all eligible deductions.
Can Mercurius assist businesses with tax planning and compliance?
Yes, we support small to large businesses with accurate preparation and filing of forms like 1120, 1065, 1099s, and ongoing compliance for federal, state, and local taxes. Our goal is to reduce liabilities, ensure full compliance, and align your tax strategy with business growth.
Can Mercurius assist with international tax concerns?
Yes, we offer comprehensive USA tax filing services tailored to your global financial needs, including:
Cross-border USA tax filing and tax filings, including S Corp tax filing
Foreign income reporting with expert USA tax filing support
Foreign tax credit optimization through our USA tax filing services
Compliance with global tax regulations as part of our USA tax filing solutions
Support for expatriates and NRIs with personalized USA tax filing assistance, including S Corp tax filing
How does Mercurius stay updated with tax laws?
Yes, we stay current with federal and state tax regulations by monitoring IRS updates, attending U.S. tax webinars and industry events, and consulting with domestic tax experts. This ensures you receive accurate, compliant, and up-to-date tax guidance for US IRS tax return and IRS tax filing.
Is Mercurius experienced in handling IRS audits?
Yes, we have extensive experience supporting clients through IRS audits. We assist with gathering documentation, provide expert guidance, and help resolve issues efficiently — all while minimizing your administrative burden for US IRS tax return and IRS tax filing.
How is pricing determined for your tax services?
Pricing depends on the complexity of your tax situation and the scope of services required. We offer transparent, customized packages tailored to fit your specific needs. You can get a free consultation to discuss your case and receive a personalized quote.
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