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Expense logging with Telegram and Google Sheets

GtarasGtaras
628 views
2/3/2026
TrelloWebhookIntegrationAutomationCustom Fields
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Weekly Summaries and Budget Alerts

Who’s it for

This workflow is perfect for individuals who want a simple expense tracker without needing a full app. If you already use Telegram daily, this makes it effortless to log purchases, track spending, and stay accountable to your budget.

How it works / What it does

  • Send an expense in Telegram using the format /spent 5 lunch.
  • n8n parses the message and appends the entry to Google Sheets.
  • Every Sunday at 11:00, the workflow sends a weekly expense summary to Telegram.
  • If you exceed your weekly budget (default €100), you’ll instantly get a budget warning alert.
  • Optionally, the sheet can be cleared weekly to start fresh.

How to set up

  1. Create a Telegram bot with BotFather, copy the token, and get your Chat ID via getUpdates.
  2. Make a copy of the provided Google Sheets template and connect your Google credentials in n8n.
  3. Replace <YOUR_CHAT_ID> and <YOUR_SHEET_ID> placeholders in the workflow.
  4. Adjust the budget threshold in the “Check Weekly Budget” node if needed.
  5. Activate the workflow and test with a sample expense. Requirements

What to do

  • A Telegram bot (free, via BotFather).
  • Google Sheets with n8n OAuth2 credentials.
  • An n8n instance (self-hosted or cloud). How to customize the workflow
  • Change the budget threshold in the Code node.
  • Update the summary schedule in the Schedule Trigger node.
  • Expand the Google Sheet with more categories or details.
  • Personalize the Telegram messages to fit your style.

Expense Logging with Telegram and Google Sheets

This n8n workflow provides a robust solution for logging expenses directly from Telegram messages into a Google Sheet. It automates the process of capturing expense details, making it easy to track and manage your spending.

What it does

This workflow is designed to streamline your expense logging by:

  1. Listening for Telegram Messages: It acts as a trigger, constantly monitoring a specified Telegram bot for incoming messages.
  2. Processing Incoming Data: When a message is received, the workflow processes the message content.
  3. Executing Custom Logic: A Code node is included, suggesting custom JavaScript logic can be applied to transform or extract specific data from the Telegram message (e.g., parsing expense amounts, categories, or descriptions).
  4. Logging to Google Sheets: The processed expense data is then automatically appended as a new row in a designated Google Sheet.
  5. Sending Telegram Confirmation: After successfully logging the expense, the workflow sends a confirmation message back to the Telegram chat, acknowledging the entry.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running instance of n8n.
  • Telegram Account & Bot: A Telegram account and a Telegram bot token configured as a credential in n8n. The bot will be used to send expense messages and receive confirmations.
  • Google Account: A Google account with access to Google Sheets. This account needs to be configured as a credential in n8n.
  • Google Sheet: A Google Sheet set up with appropriate columns for your expense data (e.g., Date, Amount, Description, Category).

Setup/Usage

  1. Import the workflow: Download the JSON provided and import it into your n8n instance.
  2. Configure Credentials:
    • Telegram: Set up a Telegram API credential using your bot token. Link this credential to the "Telegram Trigger" and "Telegram" nodes.
    • Google Sheets: Set up a Google Sheets API credential (OAuth 2.0 is recommended for robust access). Link this credential to the "Google Sheets" node.
  3. Customize Google Sheets Node:
    • Specify the Spreadsheet ID of your expense tracking Google Sheet.
    • Configure the Sheet Name where expenses should be added.
    • Map the incoming data from the previous nodes to the correct columns in your Google Sheet.
  4. Customize Code Node (Optional but Recommended):
    • Modify the Code node (named "Code") to parse your Telegram messages. For example, you might extract numbers for amounts, keywords for categories, or the full message as a description.
  5. Activate the Workflow: Once configured, activate the workflow.

Now, whenever you send a message to your Telegram bot in the specified format, it will be processed and logged into your Google Sheet, and you'll receive a confirmation message.

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