Over 10 years we helping companies reach their financial and branding goals. Onum is a values-driven SEO agency dedicated.

CONTACTS
Expert Ecommerce Bookkeeping Service

Ecommerce Bookkeeping Services in Long Island, NY

Sales come from Shopify, Amazon, and WooCommerce, payouts arrive net of fees and refunds, and sales tax rules change by state, so books that only show last quarter leave you guessing about real profit. Michael Verderosa CPA, P.C. provides ecommerce accountant services in Long Island, NY for online stores, Amazon sellers, dropshippers, and DTC brands across Suffolk County, including Mastic Beach and Patchogue. We keep your books accurate, your sales tax compliant, and your taxes planned, so you keep more of what your store earns.

Our Ecommerce Accounting Services

  • Platform integration: Shopify, Amazon, WooCommerce, and Etsy connected to QuickBooks or Xero.
  • Payment processor reconciliation: Stripe, PayPal, and Square payouts matched to sales, fees, and refunds.
  • Inventory and COGS: Real-time stock levels and margins by product or channel.
  • Multi-state sales tax: Nexus analysis, registration, and filings.
  • Monthly bookkeeping: Categorized transactions and reconciled bank and credit card accounts.
  • Payroll and payroll taxes: Payroll with federal and New York compliance. Learn about our payroll services.
  • Financial reporting: Monthly profit and loss, balance sheet, cash flow, and profit by channel or product.
  • QuickBooks and Xero: Setup, cleanup, and training. See our QuickBooks services.

CPA and Tax Services for Ecommerce Businesses

  • Tax planning: Entity structure, owner pay, inventory strategy, and deductions. Explore tax consulting.
  • Tax preparation: Business and individual returns for store owners.
  • Entity setup: Registration for new online businesses. See business registration services.
  • Part-time CFO: Budgeting, forecasting, and cash flow planning.
  • Succession and sale planning: Valuation-ready books for an exit or acquisition.
  • IRS representation: Notices, audits, and balances due. See IRS resolution services.
01
01
Platform Integration & Bookkeeping

We connect your ecommerce platforms with accounting software like QuickBooks or Xero. Our team ensures accurate bookkeeping and reconciles payment processors so your financial data is always up-to-date.

02
02
Sales Tax Compliance

Ecommerce businesses often face multi-state tax obligations. We handle nexus analysis, sales tax registration, and filings to keep you compliant and avoid costly penalties.

03
03
Inventory & Cost Management

Tracking inventory and calculating cost of goods sold (COGS) is essential for profitability. We implement systems that give you real-time insights into stock levels and margins.

04
04
Tax Planning & Business Advisory

Beyond compliance, we help you plan strategically maximizing deductions, reducing tax liability, and advising on growth strategies tailored for ecommerce businesses.

ABOUT ME

Meet Michael Verderosa, Your Trusted CPA in Suffolk County, NY

At Michael Verderosa CPA, P.C., we help individuals and businesses in Mastic Beach, Patchogue, and across Suffolk County achieve financial stability through expert tax preparation, accounting, and IRS problem resolution. Our mission is simple: provide personalized solutions that make compliance easy and maximize your savings.

With 12+ years of experience in public and private accounting, Michael brings expertise from working with BDO (one of the world’s top 5 accounting firms) and Nature’s Bounty, a multi-billion-dollar corporation. This background allows us to deliver tailored tax strategies and accounting solutions for both small businesses and individuals in Long Island and New York.

Michael specializes in:

video showcase
our services

Why Choose Michael Verderosa CPA
for Ecommerce Accountancy ?

service1-home4.png
Specialized Expertise in Ecommerce

We understand the unique challenges of online businesses multi-channel sales, inventory management, and complex tax rules so you get solutions tailored for ecommerce success.

service2-home4.png
Proactive Tax Planning & Compliance

We go beyond bookkeeping helping you minimize tax liability, stay compliant with multi-state sales tax laws, and plan strategically for growth.

service3-home4.png
Integrated Technology & Automation

Our team connects your platforms (Shopify, Amazon, WooCommerce) with advanced accounting tools, ensuring accurate, real-time financial data and streamlined processes.

real testimonials

What They
Say About Our
Company?

 Kim Marie Nemeth
Michael is very professional and very knowledgeable. Working with him brought immense peace of mind and security, knowing my finances were in order. He handles all my business and personal accounts. He’s my forever CPA! Price assessment Great price Services Trusts & estates accounting, Business tax return preparation, Individual tax planning
Kim Marie Nemeth
Business Owner
Jenna Glock
Michael has always been extremely helpful, trustworthy, honest, and informative. He is nothing but a pleasure to deal with and incredibly responsive. His services are invaluable. With his great knowledge and his honest character, you could not be in better hands
Jenna Glock
Business Owner
Kayla Rooney
For many years, Michael Verderosa has been my trusted accountant, consistently demonstrating exceptional professionalism and a friendly demeanor. His thoroughness and expertise make the accounting process seamless and stress-free. I highly recommend his services to anyone seeking a reliable and personable accountant.
Kayla Rooney
Business Owner
Jeff Yalden
Simply amazing! I reached out to Michael and his team years ago in desperation. He’s since relieved me of a lot of stress and got me on the right track. Highly recommend without a doubt. Love working with him and the team.
Jeff Yalden
Business Owner
contact details

Our Contacts

We’re here to help you simplify accounting and achieve financial success. Whether you need tax planning, bookkeeping, payroll, or business consulting, our team is ready to provide personalized solutions. Fill out the form below or reach us by phone or email—we’ll respond promptly and guide you every step of the way.

Our Address:

82-84 E Main St Unit 5, Patchogue, NY 11772, United States

Our mailbox:

Michael@verderosacpas.com

Our phones:

631-657-6957

GET IN TOUCH

Ready to Get Started?

Book Your Private Consultation with Michael Verderosa Online.