Operational Clarity & Strategic Support for Funded Founders

Scalable Financial Services for Series A Startups

three red arrows marked in the center of dartboard

Securing a Series A round is a major milestone—but it also marks the beginning of a more complex financial journey. At First Tax Service, we partner with startups that are moving fast, hiring quickly, and preparing for their next stage of growth. Our financial services for Series A startups deliver the structure, insights, and support you need to build a scalable, investor-ready back office.

Led by advisor Anh Nguyen, we offer CFO-level insight without the full-time commitment—plus a team of experts who handle your day-to-day accounting with precision. From cash flow planning to investor reporting, we help you lead with confidence.

Built for Startups in Transition

Post-funding, everything changes. You now have capital to deploy, a team to build, and a board to answer to. But without clear financial systems in place, it's easy to lose control or fall behind on reporting.

Our services help you:

  • Build and optimize your chart of accounts

  • Create reliable monthly close and reporting processes

  • Forecast runway, hiring, and burn rate

  • Prepare board reports and investor updates

  • Manage payroll, contractor payments, and equity compensation

  • Ensure sales tax, 1099s, and compliance are under control

  • Align your financial operations with your business model

We tailor your systems using tools like QuickBooks Online, bill.com, Gusto, and Ramp—while layering in strategic insight through fractional CFO support.

More Than Bookkeeping—We’re a Strategic Partner

Startups don’t just need clean books. They need guidance. We help founders make key decisions on pricing, hiring, and spend strategy—backed by real-time data and experienced advisory. Whether you're preparing for Series B or just trying to get a handle on cash flow, we’re here to help you think like a CFO while staying focused on your product and team.

We understand the startup pace—and we’re built to keep up.

One Team. Many Solutions.

Our Series A support is fully integrated across:

  • Bookkeeping and monthly close

  • Payroll and contractor payments

  • Accounts payable and receivable

  • Sales tax and compliance

  • Tax planning and filing

  • Fractional CFO and board reporting

With First Tax Service, you gain a financial partner who’s invested in your growth—without the friction of managing multiple vendors.

Let’s scale your startup with clarity.
Contact us today to learn how our financial services can support your vision, your team, and your trajectory.