How to Create a Waterfall Chart in Google Slides for Financial Analysis (Using Stacked Bars)

February 12, 2026

If you work in finance, FP&A, or consulting, the waterfall chart is your bread and butter. There is simply no better way to bridge the gap between "Actuals 2024" and "Budget 2025" or to explain exactly where EBITDA went during Q3.

But here is the painful reality we all face: creating a clean, branded waterfall chart in Google Slides is surprisingly difficult.

The native "Waterfall" chart option in Google Slides is... fine. It exists. But try to change the connector lines, adjust the specific padding, or apply your exact corporate hex codes to just the "negative" variance bars, and you enter a world of frustration. The formatting options are often locked down or require opening a linked Sheet that breaks your flow.

Today, I’m going to walk you through the "Invisible Bar" technique. This is an old-school analyst hack used to build bulletproof waterfall charts using Stacked Bar Charts, and I’ll show you how to do it faster using ExtraChart.

The Logic: The "Invisible" Stack

A waterfall chart isn't really a unique chart type; geometrically, it’s just a stacked bar chart where the bottom segment is invisible.

To bridge a starting value of 100 to an ending value of 150, you have intermediate steps (ups and downs). To make those steps "float" in mid-air, you need a supporting bar underneath them that pushes them up to the correct starting level. We call this the "Base" or "Spacer."

Here is how we build it using ExtraChart’s Stacked Bar feature.

Step 1: Structure Your Data

Before you even open the chart tool, you need to structure your data table. This is the secret sauce. You can't just list your values; you need to calculate the "Base."

Let's say you are analyzing Net Income.

| Category | Base (Invisible) | Increase (Green) | Decrease (Red) | Total | | :--- | :--- | :--- | :--- | :--- | | Start | 0 | 0 | 0 | 100 | | Revenue | 100 | 50 | 0 | 0 | | Cost | 120 | 0 | 30 | 0 | | End | 0 | 0 | 0 | 120 |

Note: The "Base" is calculated so that Base + Decrease (or Increase) + Total equals the top of the bar.

Step 2: Select the Stacked Bar in ExtraChart

Open your Google Slides presentation. Instead of wrestling with the native chart insertion menu:

  1. Go to Extensions -> ExtraChart -> Create & Edit Charts.
  2. In the sidebar that opens, scroll down to the Bar Charts section.
  3. Click on the Stacked Bar Chart icon (it looks like a column with multiple colors stacked on top of each other).

Sidebar menu: Selecting the Stacked Bar Chart icon

Step 3: Enter Your Data

Once the popup editor opens, you’ll see the Data Tab. This is where ExtraChart shines compared to native tools. You don't need to jump into a separate Google Sheet tab and wait for it to load.

Simply copy your prepared data table (from Excel or Sheets) and paste it directly into the ExtraChart grid. The preview on the left will update instantly. You should see a standard stacked bar chart, which won't look like a waterfall just yet—it will look like a multi-colored wall. That's normal.

Step 4: The "Invisible" Trick

Now, switch to the Settings Tab. This is where we turn a generic stacked bar into a piece of financial storytelling.

  1. Color the Base: Locate the data series for your "Base" column. Change the color to Transparent (or match your slide background, usually white).
    • Why ExtraChart? In native Slides, trying to click a specific segment to change its color often results in selecting the whole series or the wrong element. ExtraChart’s settings panel gives you a clear list of series to toggle.
  2. Color the Variance: Set your "Increase" series to green (or your brand’s positive color) and your "Decrease" series to red.
  3. Color the Totals: Your Start and End columns (from the "Total" series in your data) should be a neutral color, like dark blue or gray, to anchor the chart.

Suddenly, those floating bars appear. The "Base" is still there, holding them up, but your audience only sees the variance.

Step 5: Fine-Tuning for Professionalism

A messy chart kills credibility. Use the Settings Tab to clean up the visual noise:

  • Remove Gridlines: Waterfall charts are about the flow, not the specific grid coordinates. Turn off vertical gridlines to reduce clutter.
  • Axes & Labels: Ensure your Y-axis starts at a reasonable number. If your variance is small but your totals are in the millions, use ExtraChart’s min/max scale settings to zoom in on the action.
  • Fonts: Change the font to Roboto or Inter to match a modern aesthetic. Nothing screams "default template" like Arial 12pt.

Why use ExtraChart for this?

You might ask, "Can't I do this with the native Google Slides chart tool?"

Technically, yes. But here is the friction point: Updates.

When next month's numbers come in, updating a native "hacked" chart is a nightmare. You usually have to re-open the linked sheet, adjust the formulas, and hope the formatting doesn't reset (which it often does).

With ExtraChart, the chart is an intelligent image. Next month, you just:

  1. Click your existing waterfall chart.
  2. Open the ExtraChart sidebar.
  3. Paste the new data into the grid.

The formatting—your transparent base, your custom greens and reds, your axis settings—stays exactly the same. You update the numbers, hit save, and you’re done in 30 seconds.

Final Thoughts

Financial analysis is about clarity. By using the Stacked Bar method, you gain total control over how your bridge looks, ensuring your stakeholders focus on the variance—the story behind the numbers—rather than trying to decipher a messy graphic.

Give the invisible bar trick a shot on your next QBR deck. It takes a little setup, but the result is a clean, professional visualization that looks like you paid a design agency to build it.