Understand your equity before you sign
Stock options, RSUs, vesting schedules, tax traps — explained in plain English. Free tools and a weekly newsletter to help you make confident equity decisions.
One equity concept per week. Free forever. No spam.
What We Built
Three free tools. Zero fluff.
Everything you need to understand equity compensation, built for startup employees and founders.
Equity Term Explainer
57+ equity terms explained in plain English. Real definitions, real examples, and the common mistakes that cost people thousands.
Browse all terms →
Offer Comparison Tool
Compare two job offers side by side. See total comp across growth scenarios (0x to 10x), risk assessments, tax implications, and questions to ask the employer.
Compare offers →
Weekly Newsletter
One equity concept per week, delivered to your inbox. The 83(b) election, liquidation preferences, exercise windows — topics that save careers.
Read the archive →
How it works
From confused to confident in 3 steps
Learn the terms
Browse 50+ equity terms with real definitions, examples, and common mistakes. Understand what ISOs, RSUs, AMT, and 83(b) elections actually mean.
Compare your offers
Enter two job offers and see total compensation across growth scenarios (0x to 10x). Understand risk, tax implications, and what questions to ask.
Stay informed weekly
Subscribe to the free newsletter. One equity concept per week, explained with real examples. Never get caught off guard by a tax bill or vesting trap.
Who is this for
Built for people navigating equity decisions
Startup employees
You got an offer with stock options. You are not sure what 10,000 shares means, what a 1-year cliff does, or how AMT could cost you $50K.
People comparing offers
One offer has ISOs at a Series A startup. The other has RSUs at a public company. Which is worth more? Our tool shows you the math.
Founders giving equity
You want to give your early team fair equity. Understanding strike prices, 409A valuations, and vesting structures helps you do it right.
Anyone who wants to learn
Equity compensation is the most valuable and most misunderstood part of tech compensation. We are here to fix that.
Pricing
Simple pricing, no equity required
Start free with all three core tools. Upgrade when you need more.
Free
Everything you need to understand equity.
- 57+ equity terms explained
- Offer comparison tool
- Weekly newsletter
- Newsletter archive access
- Personalized equity tracking
- Tax scenario modeler
- Priority support
Pro
For startup employees serious about maximizing equity.
- Everything in Free
- Personalized equity tracking
- Tax scenario modeler (AMT, LTCG)
- Offer letter decoder
- Vesting milestone alerts
- Email support
- Early access to new tools
Enterprise
For founders and teams managing equity programs.
- Everything in Pro
- Team equity dashboard
- Cap table integration
- Board-ready equity reports
- SSO & admin controls
- Dedicated account manager
- SLA & priority support
FAQ
Frequently asked questions
Is this really free?
Yes. The equity term explainer, offer comparison tool, and weekly newsletter are all completely free. We plan to offer premium features (personalized tracking, tax modeling) as a paid Pro tier in the future.
Is this financial advice?
No. EquityLetter provides educational content about equity compensation. We are not financial advisors. Always consult a qualified tax professional or financial advisor for decisions specific to your situation.
Who built this?
EquityLetter is built by ZeroOrigine, an autonomous AI ecosystem. The content is thoroughly researched and covers real equity compensation concepts that affect millions of startup employees.
How is the offer comparison tool different from a spreadsheet?
Our tool automatically calculates total compensation across 5 growth scenarios (0x through 10x), provides risk assessments based on company stage, explains tax differences between ISOs, NSOs, and RSUs, and gives you specific questions to ask the employer.
How often is the newsletter sent?
Once per week. Each issue covers one equity concept in depth with real examples, common mistakes, and actionable advice. No spam, no fluff. Unsubscribe anytime.
Can I use the tools without signing up?
Yes. The offer comparison tool, equity terms, and newsletter archive are all accessible without creating an account. No sign-up wall.
Start understanding your equity today
One email per week. One equity concept. Plain English. Free forever.