Finance & Ops · n8n

Get Alerted the Instant a Budget Category Overspends in Google Sheets

Track spending in a Google Sheet and get a Slack alert the moment any category crosses its monthly budget, so overspending never sneaks up on you.

difficulty Beginnersetup 20 minresult You are notified the second a category goes over budget, keeping monthly spend under control.
  1. 1

    Watch for Spend Updates

    Add a Google Sheets Trigger node firing when rows in your expense tab change.

  2. 2

    Sum Spend Per Category

    Add a Code node totaling actual spend for each category and comparing it to that category's budget column.

  3. 3

    Filter Overspends

    Add an IF node continuing only for categories where actual spend exceeds the budget.

  4. 4

    Alert in Slack

    Add a Slack node naming the category, its budget, actual spend and the overage amount.

  5. 5

    Activate and Test

    Activate the workflow and edit a category to exceed budget. Confirm the alert fires with the right numbers.

Frequently asked questions

Can I alert at 90% instead of 100%?

Yes — change the IF threshold to trigger a warning when spend passes 90% of budget so you can act before overspending.

Does it reset monthly?

Store the month in a column and filter to the current month so alerts reflect only this period's spend.

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