Summary of What This Blog Covers
- Defines RSUs and ESPPs and how they are taxed.
- Explains common cost basis mistakes that lead to overpaying taxes.
- Lists the key data needed to report equity sales correctly.
- Highlights how Insogna fixes past filing errors and optimizes equity tax strategy.
Let’s start here: You’re not just someone who earns a paycheck, you’re someone who’s earned equity. Whether it came from late nights at a startup, loyalty through acquisitions, or years climbing the ranks in tech, equity compensation is more than just a number on a spreadsheet. It’s your reward. It’s part of your future.
But now that you’ve got these RSUs (Restricted Stock Units) or ESPP (Employee Stock Purchase Plan) shares in your portfolio, there’s one tiny hiccup: reporting them on your taxes can be confusing. Like, pull-your-hair-out confusing. And if you’ve ever opened a 1099-B and thought, “What even is this? Why does this form think I owe tax on this whole thing?”, you’re not alone.
Here’s the real talk: Most brokers, payroll systems, and basic tax preparation services near you don’t give you the full story. And that can lead to the most common (and expensive) mistake: reporting the wrong cost basis.
But don’t worry, we’re here to walk you through it. Step by step. In plain English. With zero judgment and all the clarity.
Because at Insogna, a firm with people-first CPAs in Austin, Texas, we believe equity should feel empowering, not paralyzing.
So let’s decode RSUs and ESPPs, explore common mistakes, and show you exactly how to gather, report, and reconcile your numbers like the boss you are.
What Are RSUs and ESPPs Really?
Let’s set the scene with some plain-language definitions.
RSUs: Restricted Stock Units
RSUs are shares your company promises to give you later. Usually, they “vest” over time. When they vest, you officially own them, and the value at vesting becomes income. Boom. It gets reported on your W-2. Even if you don’t sell a single share, the IRS treats the value of your vested stock as if you were handed a cash bonus.
Now, here’s the catch: If you eventually sell those shares and don’t adjust your cost basis on your tax return, it’ll look like the entire value of the sale is taxable even though it’s not. That’s how you end up paying taxes twice on the same income. Ouch.
ESPPs: Employee Stock Purchase Plans
An ESPP is a benefit that allows you to buy company stock at a discount, usually via payroll deductions. You can often get up to 15% off the market price. It’s a sweet deal but also a tax puzzle.
That 15% discount? It’s compensation. But it doesn’t always show up on your W-2 unless you sell the stock in the same year. So if your tax preparer near you or DIY software doesn’t know what to do with it, your capital gain gets overstated and you pay more than you should.
Why Are Cost Basis Errors So Common?
Let’s talk about brokerage forms, specifically the 1099-B.
This form is where most of the chaos starts. It tells the IRS how much money you made from selling stock but often, it doesn’t include your full cost basis.
For RSUs, your cost basis should be the fair market value on the vesting date. For ESPPs, it’s your purchase price plus the discount portion that counts as compensation.
But 1099-Bs often report a basis of $0 or just the raw purchase price. And that means the IRS thinks your entire sale is profit. Unless you adjust it manually.
And here’s the thing: You’re not wrong for not knowing this. Equity reporting is complicated. Most W-2 earners have never had to deal with cost basis corrections or gain classification. That’s why even high-performing professionals come to us asking, “Why was my tax bill so high this year?”
If you’re one of them, take a breath. We’re going to walk you through how to make this right.
Real-World RSU Reporting Example
Let’s say:
- You receive 200 RSUs from your company.
- On the vesting date, the shares are worth $40 each.
- So $8,000 is reported as W-2 income (and taxed as such).
- A few months later, you sell all 200 shares for $42 each.
- Your brokerage issues a 1099-B showing a cost basis of $0.
The IRS sees:
- Sale proceeds = $8,400
- Cost basis = $0
- Reported gain = $8,400
But in reality:
- Your true basis is $8,000
- Your actual gain = $400
If you don’t adjust the return yourself or with help from an Austin tax accountant, you’ll pay tax on $8,400 instead of just the $400 gain. That’s a massive overpayment, especially if you’re in a high bracket.
ESPP Reporting Example: What Happens with a Disqualifying Disposition?
Let’s say:
- You buy shares through your ESPP for $85 each.
- The stock’s FMV at the time is $100.
- You sell the shares 3 months later for $110.
Your W-2 might not show anything unless your company includes the discount in your pay (which is inconsistent across employers).
Here’s how it breaks down:
- Discount ($100 – $85) = $15 per share → Compensation income
- Additional gain ($110 – $100) = $10 per share → Capital gain
But if your broker reports a cost basis of $85 and you don’t manually adjust it:
- You’ll show a $25 gain per share instead of splitting it correctly.
- And the IRS will think it’s all a capital gain which it’s not.
How to Gather the Right Numbers (Without Losing Your Mind)
The key to all of this? Tracking the right data points.
Here’s what we ask for when clients come to us for RSU or ESPP support:
For RSUs:
- Grant date
- Vesting date
- FMV on vesting date
- Number of shares vested
- Number of shares sold
- Sale date
- Sale price
- Whether any shares were withheld for taxes
For ESPPs:
- Offering period and purchase date
- Purchase price
- FMV on purchase date
- Number of shares purchased and sold
- Sale date
- Sale price
- W-2 reporting details (did they include the discount?)
Not sure where to find this? We’ll work with your broker (like Fidelity, E*TRADE, or Schwab) to pull the details and verify the numbers. Because at Insogna, your proactive CPA near you, we’re not here to make you do more. We’re here to make it easier.
How to Fix Past Mistakes (Yes, Even Years Later)
Have you already filed a return where you think this might’ve been wrong? Maybe you got an IRS notice, or maybe your tax bill just felt too high and you didn’t know why.
That’s where we come in.
At Insogna, we conduct equity-focused tax reviews for entrepreneurs, contractors, and high-earning professionals across industries. We dig into:
- Your 1099-Bs and sale schedules
- W-2 reporting inconsistencies
- Missing compensation income from ESPPs
- Basis mismatches in RSU sales
And if we find an issue? We fix it. That means:
- Preparing and filing amended returns
- Recovering overpaid taxes
- Protecting against future audits
- Giving you peace of mind going forward
The Bigger Picture: Equity Isn’t Just Taxable, It’s Strategic
Here’s where equity gets exciting. Once we’ve got your reporting handled, we integrate your stock comp into your broader tax and business strategy.
For entrepreneurs and contractors, equity can affect:
- How you time business income to stay in a favorable bracket
- Whether you switch to an S-Corp and pay yourself a salary
- How much you contribute to a Solo 401(k) or SEP IRA
- How to handle quarterly estimated taxes based on RSU income
It’s not just about being compliant. It’s about creating synergy across your finances. That’s what sets Insogna apart from the average tax accountant near you or accountant firm near you.
Final Thoughts: Equity Is a Gift. Let’s Treat It Like One.
You earned this stock. You showed up. You built something. And now that equity is part of your story and your future. The last thing it should be is confusing or penalizing.
With the right strategy, RSUs and ESPPs can unlock tax advantages, fund your business dreams, or support your retirement plan.
Let’s make sure they’re working for you, not against you.
Reach out to Insogna today. We’re the Austin accounting firm that speaks equity fluently, cares deeply, and shows up for clients with clarity and heart.
You bring the vision. We’ll handle the numbers.