Format

Warnings and Pitfalls

What goes wrong and how to avoid it: common financial modeling errors, fundraising missteps, and expensive founder mistakes.

14 articles

160

The E-2 Visa Investment Spreadsheet: What Actually Counts as Qualifying Spend

A practical guide for founders tracking qualifying investment expenses for E-2 treaty investor visa applications. Eight categories of qualifying spend with typical ranges,…

Fundraising 12 min read
149

The Personal Finance of Taking the Entrepreneurial Leap

Startup failure is typically caused by running out of personal money, not bad ideas. Four prerequisites: zero high-interest debt, 6-12 month emergency fund, health insurance…

Start Ready 11 min read
146

Marginal vs Effective Tax Rates: The Myth That Costs You Money

People turn down raises and avoid side income because they misunderstand how tax brackets work. You only pay the higher rate on the income above the threshold, not on everything…

Start Ready 9 min read
143

Managing Wealth After a Liquidity Event: The First-Year Playbook

Do nothing for 90 days. Assemble a wealth team. Separate operating capital from investment capital. Avoid the common post-exit financial mistakes.

Exit Planning 10 min read
136

Asset Sale vs Stock Sale: How Deal Structure Affects Your Take-Home

Deal structure can swing net proceeds by 5-15%. Buyers prefer asset sales for the tax step-up. Sellers prefer stock sales to avoid double taxation.

Exit Planning 10 min read
098

The Revenue Recognition Trap: When Your Books and Your Bank Account Disagree

Revenue recognition and cash collection are different. Deferred revenue, payment terms, and AR aging create gaps.

Financial Modeling 9 min read
74

What Is a Convertible Note and Why It Is Not Really Debt

Founders often treat convertible notes as debt: money that needs to be repaid with interest. This is a mistake. Convertible notes are equity instruments that typically convert…

Fundraising 11 min min read
68

Unit Economics and Burn Rate: The Hidden Connection Founders Miss

Most founders manage burn rate and unit economics separately. This is a critical mistake. Poor unit economics amplify burn ratewhile you're spending to acquire customers, those…

Finance Operations 13 min min read
67

Burn Rate Trends: Creating Early Warning Dashboards for Startups

Early warning dashboards track burn rate trends before they become crises. Learn how to build real-time visibility into your cash burn, identify concerning patterns, and take…

Finance Operations 12 min min read
64

Calculating True Burn Rate: Common Mistakes Founders Make

Gross burn: total monthly spending (salaries, servers, marketing, all costs). Net burn: gross burn minus revenue (or ARR/12). Most founders undercount COGS and forget…

Finance Operations 8 min min read
60

SAFE Agreement Mechanics: Why It Is Not Equity Yet

SAFEs are post-money equity agreements with no debt, interest, or maturity dates. They convert to equity only at priced round or acquisition. On cap table: don't count as shares…

Financial Modeling 7 min min read
053

How to Write an Investor Update That Keeps Your Round Warm

Most founders either never send investor updates or send them only when things are going well. Both are mistakes. A well-written monthly update keeps warm investors engaged…

Fundraising 4 min read
40

Common Pitch Deck Mistakes That Kill Startup Investments

Avoid the 10 fatal pitch deck mistakes that turn investors awayfrom unclear value propositions to unrealistic projectionsand learn what works instead.

Fundraising 8 min min read
031

Financial Modeling Best Practices: Assumptions That Kill Startups

Master financial modeling best practices: avoid toxic assumptions about customer acquisition, unit economics, and growth rates. Stress-test models with realistic benchmarks and…

Financial Modeling 12 min read