What is SDE? A Guide to Seller Discretionary Earnings

By Kyle Morioka · November 13, 2025 ·SDE, Valuation, Business Metrics, Financial Analysis

What is SDE? A Guide to Seller Discretionary Earnings

If you're an entrepreneur thinking about selling your online business, you need to understand its true earning potential. While a standard profit and loss statement gives you a snapshot, it doesn't always show the full picture of the cash flow available to a new owner. This is where Seller Discretionary Earnings (SDE) comes in.

Understanding SDE is crucial for both buyers and sellers of small to medium-sized online businesses. It provides a standardized way to measure a company's profitability, making it easier to compare different opportunities and arrive at a fair valuation. This guide will walk you through what SDE is, why it matters, and how to calculate it for your business.

What Are Seller's Discretionary Earnings (SDE)?

Seller's Discretionary Earnings (SDE) represents the total financial benefit a single owner-operator can expect from a business. It's the most common metric used to value online businesses with less than $10 million in revenue, including SaaS companies, eCommerce stores, digital agencies, and online education platforms.

Essentially, SDE calculates a business's total cash flow by starting with its net profit and adding back the owner's salary, non-essential (discretionary) expenses, and certain non-cash expenses like depreciation. The final figure shows a potential buyer how much cash the business generates before considering the owner's personal financial decisions.

Why SDE is a Key Metric for Online Businesses

SDE is the go-to metric for valuing small online businesses for several important reasons:

• Standardizes Profitability: It normalizes earnings by removing owner-specific expenses. This allows for a more accurate, apples-to-apples comparison between different businesses, even if they have different spending habits.
• Reflects True Cash Flow: For an owner-operator, SDE provides a clear view of the total cash flow they can expect to receive from the business. This helps in evaluating the return on investment (ROI) and payback period.
• Simplifies Valuation: Marketplaces rely on SDE to apply consistent valuation multiples. This creates a transparent and widely accepted method for determining a business's market value.

By focusing on SDE, buyers and brokers can cut through the noise of discretionary spending and see the core profitability of an online business.

How to Calculate Seller Discretionary Earnings

Calculating SDE involves starting with the company's pre-tax net profit and adding back several items to "normalize" the earnings.

The formula is:

```formula SDE = Net Profit (Pre-Tax) + Owner's Compensation + Interest + Depreciation + Amortization + Non-Recurring Expenses + Discretionary Expenses - Adjustments for Market Replacements ```

Let's break down each component and look at some real-world examples.

SDE Calculation Example: B2B SaaS Business

Imagine a B2B SaaS company with $2.4 million in annual recurring revenue (ARR). Its financials look like this:

| Category | Amount | |----------|--------| | Revenue | $2,400,000 | | Cost of Goods Sold | $400,000 | | Operating Expenses | $1,700,000 | | Net Profit (Pre-Tax) | $300,000 |

To find the SDE, we adjust this net profit:

| Adjustment | Amount | Reason | |------------|--------|--------| | Net Profit (Pre-Tax) | $300,000 | Starting point | | + Owner's Salary | $150,000 | The current owner pays themselves a salary. | | + Depreciation | $10,000 | This is a non-cash expense. | | + One-time Rebranding Costs | $25,000 | This was a non-recurring expense. | | + Owner's Travel & Conferences | $15,000 | This is a discretionary expense. | | − Market-rate GM Salary | ($120,000) | A new owner might hire a General Manager. |

```calculation SDE Calculation: $300,000 + $150,000 + $10,000 + $25,000 + $15,000 - $120,000 = $380,000 ```

The SDE of $380,000 represents the total cash flow available to a new full-time owner-operator.

SDE Calculation Example: eCommerce Brand

Now let's consider an eCommerce business:

| Metric | Amount | |--------|--------| | Net Profit (Pre-Tax) | $220,000 | | + Add back owner's salary | $100,000 | | + Add back one-time Shopify redesign | $15,000 | | + Add back personal car used for business | $5,000 | | − Subtract market-rate warehouse manager | ($60,000) |

```calculation SDE Calculation: $220,000 + $100,000 + $15,000 + $5,000 - $60,000 = $280,000 ```

In this scenario, the eCommerce brand has an SDE of $280,000.

How SDE is Used in Business Valuation

Once you've calculated SDE, you can estimate your business's value by applying a market-based multiple.

The valuation formula is straightforward:

```formula Valuation = SDE × SDE Multiple ```

The SDE multiple varies depending on the business model, industry, growth rate, and overall market conditions. Here are typical ranges for online businesses on our platform:

| Business Type | Typical SDE Multiple Range | |---------------|---------------------------| | Agency | 2.5x – 3.5x | | SaaS / Marketplace Platform | 3.0x – 6.0x | | eCommerce | 2.5x – 4.0x | | Online Education | 2.5x – 3.5x |

> Example Valuation > For example, a marketing agency with an SDE of $500,000 might be valued between $1.25 million (2.5x) and $1.75 million (3.5x). A multiple of 2.9x would result in a valuation of approximately $1.45 million.

SDE vs. EBITDA: What's the Difference?

Another common profitability metric is EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization). While similar to SDE, there is a key difference.

SDE is used for smaller, owner-operated businesses and includes the owner's salary as part of the earnings. It assumes the new owner will manage the business themselves.

EBITDA, on the other hand, is used for larger companies (typically over $10M in revenue) that are run by a management team. It does not add back the owner's salary, as it assumes the business will continue to be run by paid managers, not the owner.

| Metric | Includes Owner Salary? | Used For | Typical Company Size | |--------|------------------------|----------|---------------------| | SDE | ✅ Yes — assumes owner-operator | Digital SMBs (SaaS, agencies, etc.) | <$10M revenue | | EBITDA | ❌ No — assumes management team | Larger tech or PE-backed firms | >$10M revenue |

Unlock the Value of Your Business

Calculating your Seller Discretionary Earnings is a fundamental step in preparing your online business for a sale. It gives you a clear and credible measure of its financial performance, helping you set a realistic valuation and attract serious buyers.

By understanding how to properly calculate SDE, you can confidently navigate the M&A process and position your business to achieve its maximum exit value. Whether you're selling a SaaS company, an agency, an eCommerce store, or an online education platform, SDE is the key that unlocks its true worth.

Try Our SDE Calculator

Want to calculate your business's SDE right now? Use our [SDE Calculator](/sde-calculator) to get an instant estimate of your Seller Discretionary Earnings. Simply input your financials and add-backs to see your SDE in real-time.