• CALCULATION
  • COMPLIANCE
  • LOGIC
  • HUMAN

How to calculate late payment interest with your AI

Connect your agent to the EU Late Payment Interest Calculator. Once connected, you can hand off the math for overdue invoices to your AI.

Ask AI about this page

Short answer

How do I calculate late payment interest with my AI?

Give your agent the invoice amount, the due date, and the date the payment was actually made. The AI uses the EU Late Payment Directive to find the exact interest accrued. You'll get a specific total and a breakdown of the math.

The results you get

The math you receive

The AI processes your invoice data into these specific outputs.

CALCULATION

Exact interest total

The AI uses calculate_accrued_interest to find the total amount owed. You get a single, clear number.

COMPLIANCE

EU Directive math

The calculation follows the standard EU Late Payment Directive. This ensures the math stays within legal guidelines.

LOGIC

Step-by-step breakdown

You get a clear explanation of how the interest was reached. This makes it easy to show your work to a client.

HUMAN

Final review required

The AI provides the numbers, but you must verify the invoice details and decide how to proceed with the claim.

The workflow

What your AI does when the data arrives.

The AI takes your raw invoice details and runs them through the specific calculation logic.

  1. Data ingestion

    Your agent reads the invoice amount, the original due date, and the actual payment date from your text or file.

    calculate_accrued_interest

  2. Interest calculation

    The AI applies the EU Late Payment Directive formulas to the overdue amount and the number of days late.

    calculate_accrued_interest

  3. Verification

    The agent checks the math against the directive's interest rate rules to ensure accuracy.

    calculate_accrued_interest

  4. Output generation

    The AI presents the final interest total and the logic used to reach that number.

    calculate_accrued_interest

Try it

Copy these to start.

Use these prompts to trigger the calculation immediately.

Starting points

Swap the bracketed info with your actual invoice details.

EU Late Payment Interest Calc Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_IEjsH8qKCohBJrsMQ9QPAtkh3o3IkHEq71PJH0gy/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — EU Late Payment Interest Calc capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "eu-late-payment-interest-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_IEjsH8qKCohBJrsMQ9QPAtkh3o3IkHEq71PJH0gy/mcp"
    }
  }
}
Copy into chat04

  • Calculate the interest for an invoice of 5000 EUR that was due on January 1st and paid on March 15th.

  • Using the EU Late Payment Directive, how much interest is owed on a 1200 EUR invoice that is 45 days overdue?

  • I have an overdue invoice for 850 EUR. The due date was October 10th and today is November 20th. Calculate the interest.

  • Check the interest accrued on a 15000 EUR invoice that was paid 60 days after its due date.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect EU Late Payment Interest Calculator once, then ask.

Just click the link to connect the MCP to your client. Your credentials stay encrypted, and you can start asking questions right away.

Connect EU Late Payment Interest Calculator to your AI

FAQ

Common questions

  • 01

    Can the AI change the invoice amount?

    No. The AI only calculates interest based on the numbers you provide.

  • 02

    Does the AI send the interest claim to my client?

    No. The AI only performs the calculation. You must handle all communication and sending of claims yourself.

  • 03

    What happens if the invoice is from outside the EU?

    The tool is specifically built for the EU Late Payment Directive. It will not accurately calculate interest for jurisdictions using different legal standards.

  • 04

    Can the AI calculate interest for partial payments?

    The tool calculates interest on the provided amount. If you have partial payments, you should provide the remaining balance and the relevant dates.

  • 05

    Does the AI store my invoice data?

    No. The AI processes the data you provide in the chat session to perform the calculation.

  • More questions about EU Late Payment Interest Calculator? The Connector page answers them. See everything the EU Late Payment Interest Calculator Connector can do

Connect EU Late Payment Interest Calc to Claude, Cursor, ChatGPT & more