• LIMITS
  • CATCH-UP
  • PLANNING
  • HUMAN

How to calculate annual 401k limits with your AI

Connect this MCP to your AI client once. From there, you just provide your age and current contribution status to get your legal limits.

Ask AI about this page

Short answer

How much can I put in my 401k this year?

Your AI calculates your limit by checking current IRS regulations against your age and existing contributions. It will tell you your base limit and whether you qualify for catch-up contributions if you are 50 or older.

The results

What your AI calculates

The AI handles the math and the IRS rules so you don't have to look them up.

LIMITS

Your maximum contribution

The AI uses the max_contribution_tool to find your total legal ceiling for the year.

CATCH-UP

Age-based eligibility

The AI identifies if you are eligible for extra catch-up room based on your age.

PLANNING

Remaining headroom

You'll see exactly how much more you can contribute after accounting for what you've already put in.

HUMAN

Final verification

You must confirm these numbers with your actual plan administrator before making changes to your payroll.

The workflow

What your AI does when the request arrives.

The AI acts as a specialized calculator that interprets tax law for your specific situation.

  1. Gather your data

    The AI asks for your age and how much you have already contributed to your 401k this year.

    max_contribution_tool

  2. Apply IRS rules

    The AI checks the current annual limits and catch-up thresholds for your age bracket.

    max_contribution_tool

  3. Calculate headroom

    The AI subtracts your year-to-date contributions from your total allowed limit.

    max_contribution_tool

  4. Present results

    The AI gives you a clear breakdown of your base limit and your catch-up limit.

    max_contribution_tool

Try it

Copy these to start.

Use these prompts to get moving immediately.

Starting points

Swap the bracketed info with your actual age and current contribution totals.

US 401k Calculator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_zjytwENENxnBZ0iJWYhckdyvNuL2UxdQtPUjm8RX/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 — US 401k Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "us-401k-contribution-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_zjytwENENxnBZ0iJWYhckdyvNuL2UxdQtPUjm8RX/mcp"
    }
  }
}
Copy into chat04

  • Calculate my 401k limit. I am 45 and have contributed $10,000 so far.

  • How much catch-up room do I have? I am 52 and have contributed $15,000.

  • What is my maximum 401k contribution for this year if I am 30?

  • Check my remaining 401k capacity. I'm 55 and have already hit my base limit.

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

Start here

Connect US 401k Contribution 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 US 401k Contribution Calculator to your AI

FAQ

Common questions

  • 01

    Can the AI change my actual 401k contributions?

    No. The AI only calculates your limits. You must log in to your employer's payroll or benefits portal to actually change your contribution amounts.

  • 02

    Does this account for employer matching?

    No. The tool focuses on your individual elective deferrals. Employer contributions are separate and handled by your specific plan.

  • 03

    Does it know the current year's IRS limits?

    Yes, the tool uses the most recent legal limits provided in its logic.

  • 04

    Can the AI see my bank account?

    No. The AI only knows what you tell it in the chat or what you provide through the tool.

  • 05

    Is this legal or financial advice?

    No. This is a calculation tool. You should consult a tax professional or your plan administrator for official guidance.

  • More questions about US 401k Contribution Calculator? The Connector page answers them. See everything the US 401k Contribution Calculator Connector can do

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