SERVICES
Services Built for Business Owners
Tax, bookkeeping, payroll and advice from CPAs who know your business.
Individual Tax Preparation
Personal returns including self-employment, investment and rental property income.
Business Tax Preparation
Returns for sole proprietors, partnerships, LLCs, S corps and C corps, plus prior-year and amended returns.
Tax Planning & Entity Setup
Proactive planning, estimated taxes, entity selection, S corp elections and LLC formation.
Bookkeeping & QuickBooks
Monthly bookkeeping, reconciliations, cleanup and catch-up work, and QuickBooks Online setup and support.
Payroll
Payroll setup, processing and payroll tax compliance.
Texas Sales & Franchise Tax
Texas sales tax filings and franchise tax reporting, handled correctly and on time.
IRS Notices, Audits & Tax Debt
Help with IRS and state notices, audit representation and tax debt resolution.
Business Advisory
Cash flow analysis and profitability reviews that help owners make clearer decisions.
ITIN & Specialty
ITIN applications and renewals, CPA letters, and U.S. tax compliance for foreign-owned businesses and nonresident individuals.
Flat-fee pricing, discussed upfront. No surprise bills. Fees are based on complexity, not forms.
Qualifying students and veterans receive a 10–15% discount.
HOW IT WORKS
How It Works
Simple from the first call.
Book a free 15-minute call
Pick a CPA and a time that works for you. No pressure, no jargon.
Tell us your situation
Your CPA reviews your needs and quotes a flat fee upfront, with no surprise bills.
We take it from here
Remote or in person, with a secure client portal, e-signatures, and support all year.
CLIENT EXPERIENCES
What Our Clients Say
Real feedback from business owners and individuals who count on us all year.
QUESTIONS & ANSWERS
Frequently Asked Questions
Everything you need to know about working with Castro & Nguyen CPAs.
Absolutely. Our in-house CPAs specialize in both individual and business tax needs, serving employees, freelancers, and small to mid-sized businesses, including LLCs and S-Corporations.
No, while we're proud to have Houston clients, we work with clients across Texas and North America, both in person and remotely.
Yes. We handle IRS and state tax notices, including audits, penalty relief, and payment plans. If you've received a notice, contact us promptly, we're here to help.
Absolutely. Catch-up and clean-up bookkeeping is one of our most common services. Whether you're months or years behind, we'll get your books reconciled, organized, and current, then set up a process that keeps them that way.
We offer transparent, flat-fee pricing discussed upfront, no surprise bills. Fees are based on complexity, not forms. We also provide a 10–15% discount for qualifying students and veterans.
Ready to stop stressing about taxes?
Book a free 15-minute consultation. No pressure, no jargon — just clarity.