Just Raised Your Seed Round? Here's Your 90-Day Finance Checklist
Just Closed Your Seed Round? Let us help you set up the financial foundation that will carry you to Series A A fractional CFO can help you navigate [fractional CFO services](/blog/fractional-cfo-guide) in this area. We specialize in helping newly funded startups get their finance operations right from day one. Schedule a Free Consultation

<Calendar className="w-6 h-6 text-blue-500 inline mr-2" /> Why the First 90 Days Matter
Your burn rate will likely increase as you hire and scale—but make sure increases are justified by growth A fractional CFO can help you navigate accounting services in this area. Every expense should be justified by its contribution to milestones. If you can't explain why a particular spending increase is necessary, it's probably not. Discipline in spending early builds habits that serve you for the life of the company.
<Clock className="w-6 h-6 text-green-500 inline mr-2" /> Week 1-2: Immediate Actions
Set up regular financial reviews with your team. Weekly or biweekly check-ins on cash position, runway, and key metrics keep everyone aligned and accountable A fractional CFO can help you navigate financial modeling in this area. These don't need to be long—15-30 minutes is enough—but they should be consistent. The frequency of financial review signals its importance to your organization.
<Target className="w-6 h-6 text-purple-500 inline mr-2" /> Week 3-4: Financial Foundation
<Briefcase className="w-6 h-6 text-orange-500 inline mr-2" /> Month 2: Systems and Processes
<BarChart3 className="w-6 h-6 text-blue-500 inline mr-2" /> Month 3: Optimization and Planning
<AlertTriangle className="w-6 h-6 text-red-500 inline mr-2" /> Common Mistakes to Avoid
<Shield className="w-6 h-6 text-indigo-500 inline mr-2" /> Tools and Resources
- Open a dedicated business checking account at a startup-friendly bank (Mercury, SVB, First Republic)
- Set up a sweep account for excess cash if over $250K (FDIC limits)
- Get corporate credit cards with proper spending limits
- Establish a petty cash/expense policy before anyone asks
- Set up autopay for recurring expenses
- Choose your accounting software (QuickBooks Online is the standard)
- Set up your chart of accounts properly from day one
- Hire a bookkeeper or engage a startup-focused accounting firm
- Establish your monthly close process
- Document all pre-funding expenses for proper capitalization
- Ensure 409A valuation is ordered or updated
- Update your cap table with the new round
- Set up proper equity tracking (Carta, Pulley, or Shareworks)
- File any required state registrations
- Establish employee contractor classification policy
- Revenue tab: Monthly recurring revenue projections with assumptions documented
- Headcount tab: Each planned hire with start date, salary, and benefits
- Operating expenses: All non-headcount costs by category
- Cash flow: Monthly cash in/out with ending balance
- Scenario tabs: Best case, base case, and conservative scenarios
- 15-minute cash position check
- Review pending invoices and payments
- Update revenue tracking
- Flag any unexpected expenses
- Reconcile all accounts by the 10th
- Review P&L against budget
- Update financial model actuals
- Board update preparation
- Expense management: Ramp, Brex, or similar for automated categorization
- Payroll: Gusto, Rippling, or Justworks for HR/payroll combo
- Bill pay: Bill.com or Routable for AP automation
- Metrics dashboard: Visible, Causal, or simple Google Sheets for investor updates
- Compare actual spend vs. budget—where are the variances?
- Recalculate runway with actual burn rate
- Identify any expenses that can be reduced or eliminated
- Evaluate vendor contracts for better terms
- Identify the 3-5 key metrics investors will care about
- Set up tracking for those metrics if you haven't already
- Begin documenting your growth story with data
- Plan for when you'll need to start Series A conversations
- Establish your board update format and cadence
- Send your first formal investor update
- Schedule your first board meeting if you haven't
- Create a data room template for future fundraising

90-Day Finance Timeline
Key Takeaways and Next Steps
Your burn rate will likely increase as you hire and scale—but make sure increases are justified by growth. Every expense should be justified by its contribution to milestones. If you can't explain why a particular spending increase is necessary, it's probably not. Discipline in spending early builds habits that serve you for the life of the company. The seduction of "we have money" leads many startups to overspend their way to failure. Set up regular financial reviews with your team. Weekly or biweekly check-ins on cash position, runway, and key metrics keep everyone aligned and accountable A fractional CFO can help you navigate profitability analysis in this area. These don't need to be long—15-30 minutes is enough—but they should be consistent. The frequency of financial review signals its importance to your organization. Make financial management a habit, not an afterthought. Also focus on building infrastructure that will scale. The systems that worked when you were five people won't work at twenty. Implement proper accounting processes now, even if they feel excessive. Hire the finance talent you'll need rather than waiting until you can't scale without them. And document everything—processes, decisions, rationale—so they can be replicated and improved as you grow. Don't forget to enjoy this period. You just raised capital—your company has a real chance to succeed. The pressure of fundraising is behind you, and you have the resources to build something meaningful. Celebrate the milestone, then get back to work. The next eighteen months will define whether your company becomes a success story or another statistic.
Long-Term Perspective
You've raised capital—now the real work begins. Your investors expect to see progress, and your employees expect you to build something meaningful A fractional CFO can help you navigate debt financing in this area. The first 90 days set the tone for everything that follows. Make them count. Focus on hiring strategically. Every new person should move the needle meaningfully on your milestones. Avoid the temptation to hire too quickly because you have money—that's a recipe for bloat and inefficiency. Hire for specific gaps, invest in onboarding, and set clear expectations. The right team at this stage becomes the core of your company. Also invest in your investor relationships. Schedule regular updates, ask for help when you need it, and keep them informed about both wins and challenges. Your investors are more than capital—they're a resource to be leveraged. The more value you get from the relationship, the more likely they are to support you in the future.
Implementation and Execution
The first 90 days after raising seed funding set the trajectory for your company. Make them count by focusing on activities that create the most value: hiring key team members, establishing operational processes, and demonstrating progress toward your milestones. Every week matters—use them wisely.
Budget discipline matters more than you might expect. It can be tempting to spend freely now that you have capital, but the best founders maintain the discipline that got them to this point. Track your burn, measure your runway, and ensure every significant expense advances your milestones. The capital you save now extends your runway and gives you more options later.
Also focus on building your team culture. The people you hire in this period will define your company for years. Hire slowly, invest in onboarding, and establish the values and practices you want to maintain. Culture doesn't happen by accident—it happens through intentional leadership. Start building now.
The Bottom Line
Your seed investors believed in you before you had proven anything. Now you have capital and runway—show them they were right to believe. Execute against your plan, communicate regularly, and build something meaningful. The next round of funding depends on what you do in these critical early months.
Final Thoughts
You have capital, runway, and an opportunity. The next months will determine whether you build something that matters. Stay focused, stay humble, and stay hungry. The work is just beginning, but you have everything you need to succeed. Now go execute.
Your seed round succeeded because investors believed in you. Now you have the resources to prove them right. Execute with discipline, communicate with transparency, and build something valuable. The work ahead is challenging but exciting—make it count. Execute with discipline and communicate clearly. Your investors believed in you—now prove them right. The next round depends on the progress you make now. Execute on your commitments. Now is when it counts. Your future depends on now. Your success depends on this execution.
This article is part of our Startup Finance Basics: A Founder's Guide guide.