Post-Funding Guide for Startups: The First 90 Days

The Money Is In. The Clock Is Ticking.

Congratulations. You raised недоступно. You pulled off what most founders only dream of. The wire hit. Seeing that seven-figure number in your startup’s bank account is a surreal moment. Take 24 hours. Celebrate with your co-founders and the early team who got you here. They earned it.

Now, internalize this: you just traded a slice of your company for a fixed amount of time. The money is not a prize; it’s fuel. How you use it in the next 90 days will disproportionately determine whether you raise a Series A or join the startup graveyard.

This is the operator’s guide to what to do right now. No fluff.

The First 72 Hours: Secure the Capital

Your first moves aren’t strategic, they’re defensive. They protect you from catastrophic, unforced errors.

1. Move the Money

Do not leave millions of dollars in a standard small-business checking account. These accounts often have low FDIC insurance limits (typically $250,000), meaning most of your new capital is uninsured if the bank fails.

Action: Keep only 1-2 months of operating expenses (payroll, rent, software) in your primary checking account. Wire the rest into a safer vehicle. · Options: Modern startup banking platforms offer treasury management services. With a few clicks, you can move capital into low-risk, high-yield accounts like money market funds or US Treasury bills. This is not optional.

A common setup: $250k in a primary checking account for immediate expenses. The rest of the capital is swept into a treasury account holding T-bills, earning a modest yield while being fully backed by the US government.

2. Confirm Receipt and File Your 83(b)

Your investors are waiting for confirmation. Send a simple email letting them know the wire has been received. This simple courtesy starts the relationship on the right foot.

More importantly, this is your final reminder: have you and all new employees with stock grants filed an 83(b) election? You have 30 days from the grant date to file with the IRS. If you miss this deadline, the tax consequences can be devastating down the line. There are no extensions. Consult your lawyer immediately if you are unsure about this.

The First 30 Days: Calibrate Your Operating Plan

The biggest post-funding mistake is confusing a fundraising plan with an operating plan. The deck that got you funded was a sales tool. Now you need a real budget and a clear sequence of actions.

Common Mistake: The Premature Hiring Spree

The temptation is to immediately hire for all the roles you pitched in your deck. This is a trap. Hiring too fast increases your burn rate before you’ve validated where that spending will have the most impact. You dilute your culture and add massive management overhead before you’re ready.

The Right Approach: Budget, Then Hire

Build a Real Budget: Create a month-by-month financial model. It doesn’t need to be complex. It needs to track three things: cash in, cash out, and net burn. Your runway is simply your total cash divided by your net monthly burn. Your goal is to have 18-24 months of runway. · Identify the First Three Hires: Look at your plan. What is the single biggest bottleneck to achieving your next milestone (e.g., shipping a new product, hitting a user growth target)? Hire for that. It’s almost always engineers or a product manager/designer, not a VP of Marketing. Your first hires should be builders, not managers. · Set the Investor Cadence: Draft your first investor update. Starting a monthly update cadence from day one builds trust and transparency. It also gives you a regular, low-friction way to ask for specific help.

What a Good Investor Update Looks Like

A 1-paragraph summary: The TL;DR of how the business is doing. · KPIs: A simple dashboard with your key metrics (e.g., MRR, user growth, retention). Show the numbers, good or bad. · Highlights: What went well this month? (e.g., "Shipped V2 of the onboarding flow.") · Lowlights & Lessons: What went wrong? What did you learn? (e.g., "Our initial launch on Product Hunt drove signups, but activation was 50% lower than our organic channel. We’re focusing on a better first-user experience.") · The Ask: Be specific. "Does anyone have a contact at a Series B company that has solved SOC 2 compliance?" is a great ask. "We need help with marketing" is not.

The First 90 Days: Build a Company, Not Just a Product

Now you can shift from immediate defense to offense. You’re laying the foundation for a real company.

Set Compensation Bands

You can finally pay people market rates (or close). This is a huge unlock for recruiting. Decide on your compensation philosophy. Will you be competitive on salary, or will you offer lower salaries with more generous equity grants?

Use data. Services like Pave or Radford provide benchmarks for salaries and equity at different startup stages. A typical seed-stage company might offer an experienced senior engineer a package like $150,000 in salary and 0.5% - 1.25% in equity.

Nail Employee Onboarding

Your goal is to make every new hire productive within their first 30 days. This doesn’t happen by accident. Create a simple, repeatable onboarding checklist.

Day 1: Laptop set up, dev environment running, access to all key tools (Slack, Notion, Linear, etc.), welcome lunch with the team. · Week 1: Read key documents (vision, strategy, architecture), sit in on 3-5 customer calls, ship a small bug fix or documentation update. · Month 1: Complete a full project or feature. Have a clear sense of ownership over-a part of the product.

The Non-Obvious Trap: Losing Urgency

A full bank account feels safe. It’s not. It’s a countdown timer. The sense of existential urgency that drove you to build a great product and raise money can easily fade. You start taking longer to make decisions. You avoid hard customer conversations. You start adding company perks before you have product-market fit.

The goal is not to spend the seed round. The goal is to grow the company to the point where it becomes "default alive"—profitable or able to reach profitability with the cash on hand. Every dollar you spend should be a deliberate step toward that goal.

How to Apply This Next Week

Open a treasury account. Talk to your bank or a platform like Mercury or Brex and move the majority of your new capital. Do it now. · Build a V1 budget. Create a simple spreadsheet that calculates your monthly burn and runway based on current costs and your next 3 planned hires. · Write the Job Descriptions for your first two hires. Be ruthless about prioritizing who will create the most value toward your next milestone. · Draft your first investor update. Even if there isn't much to report, establish the habit now. Send it. · Schedule an all-hands. Get your team together and walk them through the operating plan for the capital. Reiterate the vision and explain how their work fits into the path to the next round.