Financial clarity, without the chase.

Proactive bookkeeping and tax support for growing businesses and busy individuals, delivered remotely.

Bookkeeping

  • Monthly Bookkeeping
  • Financial Statements
  • Books Cleanup
  • Catch-Up Bookkeeping
  • QuickBooks Setup

Tax Planning & Filing

  • Individual Tax Returns
  • Business Tax Returns
  • Schedule C Guidance
  • Estimated Tax Payments
  • IRS + State Notice Support

CFO Guidance

  • Financial Statement Insights
  • Strategic Financial Guidance
  • Profitability + Pricing Insights
  • Performance Benchmarking
  • Growth Readiness Assessment

Retainer Plans

Starting rates for ongoing bookkeeping and tax support.

Essentials

From $500 /mo

Ideal for early-stage businesses.
Bookkeeping and financial statements.

  • Monthly Bookkeeping
  • P&L and Balance Sheet
  • Semi-Annual Check-In Call
  • 2 Business Day Response Time

Most Popular

Momentum

From $750 /mo

Ideal for small businesses.
Bookkeeping, quarterly insights, and estimated tax.

  • Everything in Essentials
  • Quarterly Financial Insights
  • Estimated Tax Management
  • Elevated Priority
  • Quarterly Meetings

Ascend

From $2,000 /mo

Ideal for businesses ready to scale.
Monthly insights on financials with top CPA access.

  • Everything in Momentum
  • Monthly Financial Insights
  • Personal CPA Phone Access
  • 1 Business Day Response Time
  • Monthly Meetings

If bookkeeping feels like a chore, tax time feels stressful, or decisions feel like guesses—you’re not alone.

We clean up the books, manage your taxes proactively, and give you clear financial direction so you can focus on what matters.

Your time is valuable and your financial data is sensitive. That’s why we use a secure portal for documents, provide clear written guidance, respond within 2 business days, and meet virtually when needed.

2 Business Day Response Time

Secure Client Portal for Document Sharing

Clear Answers in Writing (Email)

Virtual Meetings Available (Scheduled Ahead)

Meet Your CPA

I’m Brandan, a CPA licensed in New Jersey and New York, the person actually reviewing your books, not a rotating team.

Before starting Mainsail, I spent years in Big 4 financial consulting and multi-entity accounting; training I bring to every client relationship.

My mission is to give growing businesses direct access to real financial expertise, without the overhead of a traditional firm.

Ready For Financial Clarity?

Submit a consultation request and we’ll follow up within 1–2 business days with next steps.