ATM cash withdrawal flowchart

The ATM flowchart is a standard exam question because it combines input, a retry loop, a balance check and output. Notice the three-attempt limit on the PIN.

Your steps plain steps

Start
[input] Insert card
[input] Enter PIN
PIN correct?
  no: Third wrong attempt?
    yes: Keep the card
      End
    no: -> Enter PIN
  yes: [input] Enter amount
    Enough balance?
      no: [output] Show insufficient funds
        End
      yes: [db] Debit the account
        [output] Dispense cash and receipt
        End

How to write steps

One step per line. Lines connect top to bottom.
End a line with ? to make a decision. Indent the answers under it: yes: Ship it, no: Refund.
Indent more lines under an answer to continue that branch.
-> Step name jumps back to an earlier step (a loop). no -> Step name works inside a decision.
Start, End, Done or Stop become rounded start/end shapes.
Shape tags: [input] [output] [doc] [db] [sub] [manual] [delay].
lane: Sales on its own line puts the next steps in a swimlane.
Or paste Mermaid code starting with flowchart TD. It’s detected automatically.

Mermaid code for this chart

flowchart TD
  n1(["Start"])
  n2[/"Insert card"/]
  n3[/"Enter PIN"/]
  n4{"PIN correct?"}
  n5{"Third wrong attempt?"}
  n6["Keep the card"]
  n7(["End"])
  n8[/"Enter amount"/]
  n9{"Enough balance?"}
  n10[/"Show insufficient funds"/]
  n11[("Debit the account")]
  n12[/"Dispense cash and receipt"/]
  n1 --> n2
  n2 --> n3
  n3 --> n4
  n4 -->|"no"| n5
  n5 -->|"yes"| n6
  n6 --> n7
  n4 -->|"yes"| n8
  n8 --> n9
  n9 -->|"no"| n10
  n10 --> n7
  n9 -->|"yes"| n11
  n11 --> n12
  n12 --> n7
  n5 -->|"no"| n3

The steps as text

This is the source of the chart above, so the template is readable even without the diagram.

Start
[input] Insert card
[input] Enter PIN
PIN correct?
  no: Third wrong attempt?
    yes: Keep the card
      End
    no: -> Enter PIN
  yes: [input] Enter amount
    Enough balance?
      no: [output] Show insufficient funds
        End
      yes: [db] Debit the account
        [output] Dispense cash and receipt
        End

More flowchart examples

Algorithm: largest of three numbersThe textbook algorithm flowchart: read A, B, C and print the largest.Algorithm: sum of 1 to N (loop)A counting loop: add the numbers from 1 to N and print the total.Login processUsername and password check with a retry limit and account lockout.Yes/no: should I answer this email now?A light yes/no flowchart for triaging email in under a minute.

Questions people ask

How do I edit this atm cash withdrawal flowchart?

Change the text in the editor. Each line is a step, lines ending in “?” are decisions, and indented lines are the answers. The chart redraws as you type and is saved in your browser.

Can I download it?

Yes: PNG for documents and slides, SVG for sharp printing, or Mermaid code for GitHub, Notion and Obsidian.