Flowchart Start Symbol: What It Is and How to Label It

Published October 19, 2026 · Updated October 19, 2026 · 8 min read · by the Sakura5 team

The flowchart start symbol is a rounded oval, also called a terminator or terminal symbol, and it sits at the very top of the chart with a short label such as “Start” or the event that kicks the process off. The same oval shape marks the end, so a reader can spot both edges of the process at a glance.

This guide covers what the start symbol looks like and how it differs from shapes people confuse it with, how to label it, a worked example of a café refund process, the edge cases that trip people up (multiple triggers, loops, sub-processes), and answers to the questions people ask most often.

What the flowchart start symbol looks like

The start symbol is an oval or a pill shape: a rectangle with fully rounded ends. Drawing tools label it “Terminator” or “Start/End” in their shape panels. The name comes from the fact that it terminates the chart at either end — it is the boundary between the process and everything outside it.

The ISO 5807 standard for flowchart symbols calls it the terminal symbol and describes it as an exit to, or entry from, the outside environment. That framing is useful. The oval isn’t a step you perform. It’s the moment the process is handed to you, and the moment you hand it back.

Three shapes get mistaken for it often enough to name:

• Rectangle with slightly rounded corners — many tools draw ordinary process boxes with soft corners. If the ends aren’t fully round, it’s a process step, not a terminator.
• Small circle — this is a connector. It joins one part of a chart to another and usually holds a single letter or number, never the word “Start.”
• Half-oval shaped like a D — this is the delay symbol, used for waiting periods. It looks like a squashed oval, which is why it gets mixed up.

If you want the meanings of the other core shapes alongside this one, our guide to flowchart symbols and meanings for beginners covers all six in one place.

Why the start symbol is easy to get wrong

Most mistakes with the start oval aren’t about the shape. They’re about what goes inside it and where the chart really begins.

The first mistake is labeling it with nothing but “Start.” That’s technically correct, and for a short algorithm in a programming class it’s exactly what your teacher expects. For a business or real-world process, though, “Start” hides the most important fact: what causes the process to happen. “Customer asks for a refund” tells the reader far more.

The second mistake is putting an action in the oval. “Check the receipt” is something somebody does, so it belongs in a rectangle. The oval should describe a trigger or a state, not work.

The third mistake is starting too late or too early. People begin a hiring flowchart at “Interview candidate” and lose the screening steps, or begin at “Company decides to grow” and drown the reader in context. The right start is the first moment the process owner has something to act on.

How to place and label the flowchart start symbol

These steps work for any chart, from a homework algorithm to an operations procedure.

1. Name the trigger before you draw

Write one sentence: “This process begins when ___.” Whatever fills the blank is your start label. If you can’t fill it in, you don’t know the scope yet, and drawing shapes won’t fix that.

2. Keep the label to a short event

Aim for two to six words, written as something that happened: “Order received,” “Form submitted,” “Alarm goes off.” For programming flowcharts, plain “Start” and “End” are the convention, and you should stick to them there.

3. Put it at the top or the far left

Readers look for the start where reading begins. In a top-to-bottom chart, that’s the top center. In a left-to-right chart, it’s the left edge. Don’t tuck it into the middle, even if that makes the layout neater.

4. Give it exactly one outgoing arrow and no incoming ones

The start oval has one arrow leaving it and none arriving. If you find yourself drawing an arrow back into the start, you have a loop, and it should return to a step inside the chart instead.

5. Match it with at least one end oval

Every path needs to finish somewhere. Use the same oval shape for the end, labeled with the outcome: “Refund issued,” “Request closed.” Before you finish, trace each branch with your finger and confirm it lands on an end oval.

It often helps to list the steps before choosing any shapes. In Mindmap AI you can put the trigger in the central node, branch out the steps, checks and outcomes, then switch to the outline view to put them in order. A Pro subscriber can also type the process as a topic and let AI draft the branches, which is a quick way to see whether you’ve missed a step before committing to a chart.

A worked example: a café refund process

Here is a real-sized example. A small café called Linden Street Coffee wants a one-page chart its baristas can follow when a customer asks for money back. The owner’s rules are simple: refunds up to $15 can be handled by any barista, anything larger needs the shift lead, and no refund is given without a receipt or a matching card transaction.

The first draft started with an oval labeled “Start,” followed by “Look at the drink.” That raised an immediate question: what if the customer isn’t complaining about a drink? The trigger was really broader, so the oval was relabeled “Customer asks for a refund.”

The finished chart runs top to bottom like this:

1. Oval: Customer asks for a refund.
2. Parallelogram: Customer shows receipt or card.
3. Diamond: Purchase found in today’s transactions? No leads to an end oval, “Refund declined — explain policy.” Yes continues.
4. Diamond: Amount $15 or less? Yes leads to the next rectangle. No leads to a rectangle, “Call shift lead,” and then to a diamond, “Shift lead approves?”
5. Rectangle: Refund to original payment method.
6. Rectangle: Note refund in the shift log.
7. Oval: Refund issued.

The chart has one start oval and three end ovals: “Refund issued,” “Refund declined — explain policy,” and “Shift lead declines — offer replacement drink.” Three endings are fine because the process genuinely finishes in three different ways. What matters is that a barista reading it on a busy Saturday knows exactly where to begin: the moment someone asks for money back.

Edge cases: multiple triggers, loops and sub-processes

Real processes don’t always begin in one tidy place. Here’s how to handle the awkward cases.

More than one trigger. If a process can begin two ways — a refund request in person or by email — the cleanest option is still one start oval with a broader label, “Refund request received,” followed by a parallelogram or a diamond that sorts the channel. Two start ovals are acceptable in some workflow notations, but in a classic flowchart they make readers unsure where to begin.

Processes that repeat. A daily checklist feels like it never really ends, so people loop the last arrow back into the start. Don’t. End with an oval like “Day closed,” and let the next day’s trigger start a new run. If the loop is part of the process — retrying a failed payment, for instance — send the arrow back to the step being retried, not to the oval.

Sub-processes. When one box expands into its own chart, the detailed chart gets its own start and end ovals. Label the start with the name of the parent step, such as “Begin stock count,” so a reader can see how the two charts connect. In the parent chart, the step is usually drawn as a predefined process: a rectangle with double lines on each side.

The American Society for Quality has a clear overview of when to use a flowchart and how to build one, which is worth reading if you’re charting a process for a team rather than for class. For the full drawing workflow, from listing steps to checking every branch, see our guide on how to make a flowchart for a process.

FAQ

What shape is the start symbol in a flowchart?

The start symbol is an oval or pill shape, known as the terminator or terminal symbol. It marks where the process begins and uses the same shape for where it ends. Label it with “Start” in programming charts, or with the triggering event, such as “Order received,” in business process charts.

Is the start and end symbol the same in a flowchart?

Yes. Both the start and the end of a flowchart use the same rounded oval, called the terminator. The label tells them apart: the start describes the trigger and the end describes the outcome. A chart has one start oval but can have several end ovals when the process can finish in different ways.

Can a flowchart have two start symbols?

In a classic flowchart it’s best to use one start symbol so readers know exactly where to begin. If a process has several triggers, give the single start oval a broader label, then add a decision or input step that sorts the different cases. Some workflow notations allow multiple starts, but simple flowcharts read better without them.

What do you write inside the flowchart start symbol?

Write a short event that triggers the process, usually two to six words, such as “Customer asks for a refund” or “Form submitted.” Avoid actions like “Check receipt,” which belong in rectangles. For algorithms and programming exercises, plain “Start” is the expected convention and is perfectly correct.

Get the oval right and the rest of the chart has a clear anchor. If you’d like to sort out the steps before you draw them, Mindmap AI gives you an infinite canvas to branch them out and an outline view to put them in order.

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