C-Corp Tax Preparation NYC & NJ | C-Corporation Tax Accountant | OnPoint
C-Corp Tax Preparation for NYC & NJ Businesses
Expert C-Corporation tax filing — federal, state, and city — handled by licensed tax professionals.
C-Corporations face some of the most complex tax obligations of any business entity — from the 21% federal corporate rate to New York City's General Corporation Tax and New Jersey's Corporation Business Tax. OnPoint Business Tax & Accounting prepares accurate, IRS-compliant C-Corp returns for businesses across NYC and NJ, identifying every deduction and credit available to reduce your effective tax rate.
What's Included
A complete service — not just a transaction.
Form 1120 Federal Return
Complete preparation of your C-Corp federal income tax return, including all required schedules, elections, and disclosures.
NYC General Corporation Tax
Full compliance with New York City's General Corporation Tax (GCT), including NYC-3L or NYC-3A filings for combined groups.
NJ Corporation Business Tax
Accurate New Jersey CBT filings, including apportionment calculations for businesses operating in multiple states.
Deductions & Credits Maximization
We identify every available deduction — depreciation, Section 179, R&D credits, and more — to minimize your corporate tax liability.
Dividend & Retained Earnings Planning
Strategic guidance on dividend distributions vs. retained earnings to optimize the overall tax burden for the corporation and its shareholders.
Multi-State Tax Compliance
If your C-Corp operates across multiple states, we handle nexus analysis, apportionment, and filings in every required jurisdiction.
Flat-Fee Pricing — No Surprises
You know exactly what you'll pay before we start. No hourly billing, no hidden charges, no scope creep.
100% In-House — Never Outsourced
Every return, every filing, every call is handled by our own licensed team. Your work never leaves our office.
How Much Are You Overpaying in Taxes?
Select your entity type and answer 3 quick questions — get your personalized savings estimate in seconds. Free, no signup required.
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Everything We Handle for You
OnPoint Business Tax & Accounting delivers a complete, end-to-end service — no hand-offs, no surprises.
- Federal Form 1120 preparation and e-filing
- New York State CT-3 corporate tax filing
- New York City GCT (NYC-3L / NYC-3A) filing
- New Jersey CBT (Corporation Business Tax) filing
- Depreciation schedules and Section 179 elections
- R&D tax credit analysis and documentation
- Estimated quarterly corporate tax payments
- Multi-state nexus analysis and apportionment
- Dividend planning and retained earnings strategy
- IRS audit support and representation
Why OnPoint?
NYC & NJ's Trusted Business Tax Experts
- Circle of Excellence 2025 Award Recipient
- 5-star rated on Google Reviews
- Serving NYC & NJ businesses for over a decade
- Flat-fee pricing — you know the cost upfront, always
- 100% in-house — your work is never outsourced or offshored
- Bilingual staff — English & Spanish
- In-person, virtual, and drop-off options
Client Stories
What NYC & NJ Business Owners Say
"OnPoint is hands-down the best business tax accountant in Brooklyn. They found deductions I never knew existed, saved my LLC thousands in taxes, and made the whole process completely stress-free. I won't go anywhere else."
Maria T.
Owner, Bella Mia Boutique — Brooklyn, NY
"I've worked with several Manhattan accountants over the years, but OnPoint is on another level. Their real estate tax expertise and S-Corp knowledge saved my business over $14,000 last year. Highly recommend for any NYC business owner."
James R.
CEO, R&R Property Group — Manhattan, NY
"As a new LLC owner in Queens I was overwhelmed by business taxes. OnPoint walked me through everything — bookkeeping setup, quarterly estimates, and my first business tax return. Now I feel totally in control of my finances."
Sofia M.
Founder, SM Consulting LLC — Queens, NY
"OnPoint handles our payroll, bookkeeping, sales tax filings, and annual business tax return. Everything is accurate and on time. Having a reliable Bronx tax accountant on our side lets me focus on running my restaurant."
Kevin L.
Owner, Golden Dragon Restaurant — Bronx, NY
"OnPoint is the best small business accountant on Long Island. They cleaned up two years of messy books, caught deductions my previous accountant missed, and got me a refund I didn't even know I was owed. Exceptional service."
Denise W.
Owner, Denise's Hair Studio — Long Island, NY
"OnPoint handles all my New Jersey contractor tax filings, quarterly estimates, and business tax preparation. They're always reachable, always accurate, and have already saved me from two IRS notices. Best business accountant in NJ."
Carlos V.
Principal, Vega Construction — Newark, NJ
"I needed a New Jersey accountant who truly understood small business taxes and S-Corp elections. OnPoint nailed both. The S-Corp election they recommended saved me over $8,000 in self-employment tax last year alone."
Rachel B.
Founder, Bright Start Tutoring — Montclair, NJ
"I used to dread tax season. Now I look forward to my year-end review with OnPoint because I know they'll find ways to reduce my business taxes. The best tax accountant in Brooklyn for contractors and tradespeople."
Anthony P.
Owner, Park Slope Plumbing — Brooklyn, NY
"Our payroll taxes and NYC business tax situation were a mess when we came to OnPoint. Within 90 days they had everything organized, compliant, and running smoothly. The most knowledgeable Manhattan tax accountant we've ever worked with."
Linda C.
CEO, Citywide Staffing Solutions — Manhattan, NY
"OnPoint helped me form my LLC, set up QuickBooks, and filed my first business tax return in the Bronx. They made starting a business feel manageable. I refer every small business owner I know to them."
Marcus J.
Owner, MJ Auto Detailing — Bronx, NY
"As a restaurant owner in Queens, sales tax compliance and payroll taxes were always stressful. OnPoint handles all of it — filings, audits, quarterly returns. I haven't received a late notice since switching to them."
Priya S.
Founder, Priya's Kitchen — Queens, NY
"OnPoint understands real estate taxation better than any accounting firm I've used. They handle our partnership returns, depreciation schedules, 1031 exchange planning, and Long Island property tax strategy. Worth every dollar."
Tom H.
Partner, Harbor View Realty — Long Island, NY
Get Your C-Corp Taxes Filed Right — the First Time
From federal to NYC to NJ, we handle every layer of your C-Corp tax obligation. Flat-fee pricing, no surprises.
Serving NYC & New Jersey — Find Your Local Accountant
Verified Google Reviews
What Our Clients Say on Google
All reviews sourced directly from Google Business Profile
Ahmet Kiranbay
Sep 2026
"Outstanding, dependable service every step of the way. They're always on time, always reachable, and treat our business like it's their own. It's rare to find a firm this attentive — we're grateful to have them in our corner"
Sunday Morningnyc
Sep 2026
"Exceptional service from start to finish. Their team is always punctual, responsive, and just a phone call away whenever we need them — a level of reliability that's hard to find. We couldn't be happier to have found the right partner for our business."
Shanon McAlister
Sep 2026
"My experience with Onpoint has been great, the attention to detail and response time won me over compared to my last experience..such a relief."
Gilena Johnson
Sep 2026
"The attention to detail is amazing. They took time to explain everything clearly, and helped me make the best choices for my business and personal taxes. I can not highlight enough the quality of the customer service"
isabella bala
Jun 2026
"Milla is the best! I love working with the team they're super knowledgeable and always available. They help me with my business taxes, and when I was opening up my second location, they took no time to answer all my questions and guide me."
celfie cosmetics
Dec 2025
"I can't recommend Ludmilla and her accounting firm highly enough. She is incredibly knowledgeable, detail-oriented, and always takes the time to explain things clearly. You can tell she genuinely cares about her clients and their success, not just the numbers. Everything is handled professionally, efficiently, and with complete transparency."