![[Tax Professional] — Tax Preparer & Bookkeeper](https://newburstfinancial.com/wp-content/uploads/2026/08/Chavelt-Saint-Charles-MBA-PhD.webp)
[Tax Professional]
Tax Preparer & Bookkeeper
Experienced tax professional specializing in personal and business returns, payroll, bookkeeping, and ITIN services for Long Island families and small businesses.
Our Story
Nassau County's Insurance & Tax Experts
Newburst Financial is an independent insurance agency and professional tax firm rooted in Valley Stream, NY — the only firm in Nassau County offering both services under one roof.
Who We Are
Built for Nassau County Families & Businesses
Newburst Financial was founded on a simple insight: the families and small business owners of Nassau County should not have to juggle multiple vendors for their insurance and tax needs. We combined these two essential financial services under one roof — and it has made all the difference for over 1,200 clients.
As an independent insurance brokerage, we are not tied to any single carrier. We work with 20+ top-rated insurance companies to find the policy that best fits your needs and budget. As professional tax preparers, we handle everything from simple W-2 returns to complex business tax filings, ITIN processing, and IRS representation.
Our agents are bilingual — English and Spanish — and deeply familiar with Nassau County’s unique requirements, flood zones, and local market conditions.
By the Numbers
Trusted by Nassau County
1,200+
Clients Served
20+
Carrier Partners
4.8
Google Rating
14
Communities Served
Our People
Meet the Team
Our licensed agents and tax professionals are dedicated to providing the best service in Nassau County.
![[Agent Name] — Insurance Agent](https://newburstfinancial.com/wp-content/uploads/2026/08/Guerdine-Saint-Charles.webp)
[Agent Name]
Insurance Agent
Specializing in life insurance, business coverage, and specialty lines including motorcycle, boat, and ATV policies across Nassau County and Long Island.
Why Newburst Financial
Six Reasons Clients Choose Us
Independent & Unbiased
We work for you, not any single insurer. We compare 20+ carriers to find the best rate and coverage.
Insurance + Tax Under One Roof
The only firm in Nassau County where you can handle both. Save time and simplify your financial life.
English & Spanish Service
Bilingual agents serve Nassau County’s diverse communities. Se habla español.
Truly Local Expertise
We know Nassau County flood zones, NY insurance requirements, and local market conditions firsthand.
4.8 Star Google Rating
Over 120 five-star reviews from real Nassau County clients who trust us with their insurance and taxes.
Fast Response Time
Same-day callbacks and quote delivery. We respond within 1 business hour to all online quote requests.