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The Sales General and Administrative Expenses (SG&A Sheet)

Article by Caya
Last update: Jun 05, 2025

What Is SG&A and Why It Matters

If you’re building a startup financial model, you’ll quickly run into SG&A—short for Selling, General & Administrative expenses. These are the operating costs that keep your business running day-to-day but don’t directly produce revenue.

In this guide—based on Slidebean’s SG&A modeling tutorial—we break down:

  • SG&A meaning and components
  • How to model SG&A expenses in a financial model
  • Startup-specific tips for forecasting and budgeting
  • Best practices for SG&A categorization and automation

Use our free startup financial model template to follow along.

What’s Included in SG&A Expenses?

SG&A includes all the core non-production costs your company incurs. These typically include:

  • Headcount-related expenses (excluding production roles)
  • Payroll taxes and benefits, often modeled at 25% in the U.S.
  • Marketing and paid media campaigns
  • Professional services (e.g., legal, accounting)
  • Software tools and rent
  • Insurance and admin costs

SG&A Expense Examples:

  • CMO with a $60,000 annual salary ($5,000 monthly), plus 25% overhead
  • Legal retainer of $750/month, categorized under “Legal”
  • One-time marketing campaign of $1,000

How to Model SG&A in a Startup Forecast

Use a Role-Based Staff Sheet

Slidebean recommends modeling staff by role rather than by individual. For example:

  • A CMO is modeled as a single role with a defined start date and an annual salary increase (e.g., 5%).
  • Senior marketers or associates can be grouped under one role and scaled quarterly until the team reaches a target size.

This enables automated headcount forecasting without the need for manual updates each month.

Model Long-Term Contractors as Employees

If you’re hiring contractors who work like full-time staff, include them in the staff sheet but set payroll taxes and benefits to 0%.
Short-term contractors, like legal advisors or accountants, should be included in the Professional Services section.

Set Recurring and One-Off Expenses

Most SG&A expenses are assumed to be recurring. The model auto-fills these values across future months. You can override this by:

  • Zeroing out the expense in later months
  • Manually entering values for one-off campaigns or short-term engagements

Best Practices for SG&A Modeling

Automate Where Possible

Use scaling rules and assumptions instead of manual inputs. If you do enter custom values, highlight them with color or comments to avoid confusion later.

Don’t Personalize Roles

Avoid labeling rows with individual team member names. Group employees with the same responsibilities and compensation under shared role titles.

Categorize Cleanly

Assign each expense or team role to a specific category—Operations, Growth, Legal, etc.—using the settings sheet. These categories drive the dashboard visuals and should align with your P&L structure.

Use Visual Dashboards

The SG&A model includes a Use of Funds pie chart that shows expense breakdowns over time. This is useful for internal tracking and pitch decks alike.

Budgeting and Forecasting Implications

Accurate SG&A modeling has a major impact on:

  • Burn rate and runway calculations
  • Hiring plans
  • Strategic budgeting
  • Investor reporting and pitch decks

If your company is already operating and you’re tracking many expenses, syncing your P&L manually can become unsustainable. That’s where our financial modeling services can help streamline the process and ensure accuracy.

Build Smarter SG&A Assumptions

Your SG&A forecast is more than a line item—it’s a window into how your business scales. A clear, automated, and well-structured SG&A model helps you:

  • Plan hiring with confidence
  • Understand your cost structure
  • Communicate effectively with investors
  • Maintain financial health as you grow

What Is SG&A and Why It Matters

If you’re building a startup financial model, you’ll quickly run into SG&A—short for Selling, General & Administrative expenses. These are the operating costs that keep your business running day-to-day but don’t directly produce revenue.

In this guide—based on Slidebean’s SG&A modeling tutorial—we break down:

  • SG&A meaning and components
  • How to model SG&A expenses in a financial model
  • Startup-specific tips for forecasting and budgeting
  • Best practices for SG&A categorization and automation

Use our free startup financial model template to follow along.

What’s Included in SG&A Expenses?

SG&A includes all the core non-production costs your company incurs. These typically include:

  • Headcount-related expenses (excluding production roles)
  • Payroll taxes and benefits, often modeled at 25% in the U.S.
  • Marketing and paid media campaigns
  • Professional services (e.g., legal, accounting)
  • Software tools and rent
  • Insurance and admin costs

SG&A Expense Examples:

  • CMO with a $60,000 annual salary ($5,000 monthly), plus 25% overhead
  • Legal retainer of $750/month, categorized under “Legal”
  • One-time marketing campaign of $1,000

How to Model SG&A in a Startup Forecast

Use a Role-Based Staff Sheet

Slidebean recommends modeling staff by role rather than by individual. For example:

  • A CMO is modeled as a single role with a defined start date and an annual salary increase (e.g., 5%).
  • Senior marketers or associates can be grouped under one role and scaled quarterly until the team reaches a target size.

This enables automated headcount forecasting without the need for manual updates each month.

Model Long-Term Contractors as Employees

If you’re hiring contractors who work like full-time staff, include them in the staff sheet but set payroll taxes and benefits to 0%.
Short-term contractors, like legal advisors or accountants, should be included in the Professional Services section.

Set Recurring and One-Off Expenses

Most SG&A expenses are assumed to be recurring. The model auto-fills these values across future months. You can override this by:

  • Zeroing out the expense in later months
  • Manually entering values for one-off campaigns or short-term engagements

Best Practices for SG&A Modeling

Automate Where Possible

Use scaling rules and assumptions instead of manual inputs. If you do enter custom values, highlight them with color or comments to avoid confusion later.

Don’t Personalize Roles

Avoid labeling rows with individual team member names. Group employees with the same responsibilities and compensation under shared role titles.

Categorize Cleanly

Assign each expense or team role to a specific category—Operations, Growth, Legal, etc.—using the settings sheet. These categories drive the dashboard visuals and should align with your P&L structure.

Use Visual Dashboards

The SG&A model includes a Use of Funds pie chart that shows expense breakdowns over time. This is useful for internal tracking and pitch decks alike.

Budgeting and Forecasting Implications

Accurate SG&A modeling has a major impact on:

  • Burn rate and runway calculations
  • Hiring plans
  • Strategic budgeting
  • Investor reporting and pitch decks

If your company is already operating and you’re tracking many expenses, syncing your P&L manually can become unsustainable. That’s where our financial modeling services can help streamline the process and ensure accuracy.

Build Smarter SG&A Assumptions

Your SG&A forecast is more than a line item—it’s a window into how your business scales. A clear, automated, and well-structured SG&A model helps you:

  • Plan hiring with confidence
  • Understand your cost structure
  • Communicate effectively with investors
  • Maintain financial health as you grow
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