Long Island, NY

Bookkeeping & Accounting
for Small Business.

Clean monthly books, catch-up work, payroll, and NY sales tax support for Nassau & Suffolk County—with clear reporting and responsive communication.

Accurate Monthly Close
Reconciliations & reporting
Catch-Up & Cleanup
Fix prior periods
Compliance Support
Payroll & NY sales tax
Nassau & Suffolk County • QuickBooks Online
Bookkeeper reviewing financial statements
Long Island Bookkeeping
What We Do

Bookkeeping & Accounting Services

Practical, reliable financial support for Long Island small businesses— built around clean books, strong controls, and on-time compliance across Nassau & Suffolk County.

Accounting & Monthly Close

Accurate monthly bookkeeping that gives you confidence in your numbers. We handle reconciliations, AR/AP, and financial statements so you’re always tax-ready and lender-ready.

  • Clean, GAAP-aligned financials
  • Bank & credit card reconciliations
  • QuickBooks Online setup & support

Cash Flow & AR/AP Management

Visibility into where your cash is going—and what’s coming in. We streamline invoicing, collections, and bill pay while helping you plan for payroll, inventory, and taxes.

  • Invoicing & collections workflows
  • Vendor bill pay & approvals
  • Cash flow tracking & KPIs

NY Sales Tax, Payroll & Compliance

Stay compliant without the stress. We manage New York sales tax, payroll processing, quarterlies, and year-end filings—keeping your business audit-ready.

  • NYS & local sales tax filings
  • Payroll setup, W-2s & 1099s
  • Documented controls & support
Areas We Serve

Bookkeeping Across Long Island, NY

We provide bookkeeping and accounting support throughout Nassau and Suffolk County. Choose your location to learn more about our local services.

Suffolk

Huntington, NY

Monthly bookkeeping, cleanup, payroll support, and NY compliance—built for busy local businesses.

View page
Nassau

Garden City, NY

Accurate monthly close, organized financials, and local compliance support for Nassau County owners.

View page
Nassau

Manhasset, NY

Professional bookkeeping with clean reporting, payroll support, and compliance-first workflows.

View page
Nassau

Oyster Bay, NY

Reconciled books, monthly statements, and systems that support New York sales tax and payroll.

View page
Suffolk

Islip, NY

On-time bookkeeping, cleanup, and reporting that helps you manage cash flow and tax readiness.

View page
Suffolk

Brookhaven, NY

Monthly close, job costing support, and financial clarity for busy Suffolk County operations.

View page
Suffolk

Babylon, NY

Clean books, predictable reporting, and compliance support designed for local small businesses.

View page
Don’t see your town? We serve additional Nassau & Suffolk County areas—contact us for availability.
Insights & Updates

Latest From Our Blog

Practical bookkeeping, accounting, and compliance insights for Long Island small business owners.

Monthly bookkeeping tips for small businesses
Bookkeeping

Why Monthly Bookkeeping Matters for Long Island Businesses

Staying on top of your books each month helps prevent tax surprises, improves cash flow visibility, and keeps your business lender-ready.

Read Article →
NY sales tax compliance guide
NY Compliance

Common New York Sales Tax Mistakes (and How to Avoid Them)

Nassau and Suffolk County businesses often make costly sales tax errors. Learn what to watch for—and how to stay compliant.

Read Article →
Cash flow management tips
Cash Flow

How to Improve Cash Flow Without Growing Revenue

Better invoicing, collections, and expense timing can significantly improve cash flow—even without increasing sales.

Read Article →
Get a Quote

Let’s Clean Up
Your Books.

Professional bookkeeping and accounting services for Long Island businesses—done right, on time, and with clear communication.

Accurate Monthly Books
Nassau & Suffolk County
Secure & Confidential
QuickBooks Online experts