Contact
Reach Out Anytime — We’re Here to Help, 24/7
Whether you’re ready to file, have a tax question, or want help organizing your business finances, we make it easy to get in touch. At John O'Shea Tax
Preparation and Business Services LLC, you won’t get automated menus or long wait times — just real, reliable support from a trusted professional.
Located in Union, NJ and serving clients throughout the state and beyond, we’re available day or night to assist with everything from personal income tax filing to year-round business consulting.
Contact Information
Office Address
1963 Marianne Way
Union, NJ 07083
Business Hours
Available 24/7 — including evenings and weekends
(We work around your schedule!)
Secure Document Upload:
What to Expect After You Reach Out
When you contact us, you’ll receive a prompt response — usually the same day. We’ll review your needs, answer your questions, and explain next steps clearly. Whether you’re a new or returning client, we’ll guide you through the process from start to finish.
Need help preparing documents or understanding which forms to submit? Just ask. We’re here to make things simple, not more complicated.
Perfect for:
Prefer to Work Remotely? No Problem.
While we’re proud to serve our Union, NJ community in person, we also offer fully virtual services. With our secure upload portal, phone consultations, and email support, you can complete your tax prep from the comfort of your home.
Busy professionals
Out-of-town clients
Health-conscious filers
Small business owners with tight schedules
Questions We Commonly Help Answer
Our comprehensive services help clients year-round, not just in tax season:
What tax documents do I need to get started?
How do I file if I’m self-employed?
What deductions apply to my business?
What should I do if I got a letter from the IRS?
Can I still file if I missed last year?
Whether you’re filing early or running behind, we’re ready to help.
Let’s Get Started Today
No matter your tax or business situation, we’re here to simplify it. Let us show you how easy, accurate, and stress-free working with a trusted local tax professional can be.


