Solo 401k Calculator
Works out how much you can put into a Solo 401(k) based on income, age and business type.
What Solo 401k Calculator can do in ChatGPT
See your Solo 401(k) limits from a few numbers.
Maximum Contribution
Works out the most you can put in this year.
Employee And Employer
Shows how the total splits between the two contribution types.
Mega Backdoor Room
Shows the after-tax space left for a Mega Backdoor Roth.
Business Type Support
Handles sole proprietorships, LLCs and S-corps.
Current Year Limits
Uses the 2025 and 2026 contribution limits.
You stay in control
You approve access, and you can disconnect Solo 401k Calculator at any time.
Apps 1
What Solo 401k Calculator does in ChatGPT
The Solo 401k Calculator plugin is a contribution calculator for self-employed people inside ChatGPT. You give it your income, your age and the kind of business you run, and it works out the most you can put into a Solo 401(k) for the year.
The result splits the total into the employee part and the employer part, so you can see where each dollar comes from. It also shows how much after-tax room is left for a Mega Backdoor Roth. Sole proprietorships, LLCs and S-corps are all covered by the calculator.
The listing says the numbers follow the 2025 and 2026 limits. It is meant for learning only and is not tax or financial advice, so check the result with an accountant or adviser before you act on it or file anything.
Who it is for
- Self-employed people saving for retirement
- S-corp owners paying themselves a salary
- Freelancers comparing contribution limits
How to add Solo 401k Calculator to ChatGPT
- Open the Solo 401k Calculator listing in ChatGPT ↗.
- Click Install plugin.
- Sign in to your Solo 401k Calculator account when asked and approve the access it requests.
- Start a chat and ask for what you need, mentioning Solo 401k Calculator if ChatGPT does not pick it up.
- To stop, disconnect Solo 401k Calculator under apps in your ChatGPT settings.
Questions about Solo 401k Calculator
What is the Solo 401k Calculator ChatGPT plugin?
The Solo 401k Calculator plugin is a contribution calculator for self-employed people inside ChatGPT. You give it your income, your age and the kind of business you run, and it works out the most you can put into a Solo 401(k) for the year. It is listed in ChatGPT's plugin marketplace under Finance.
What can I ask Solo 401k Calculator to do in ChatGPT?
For example: "I'm 55 with an S-corp that paid me $120k. How much can I contribute?", "I run a sole proprietorship and earned $80,000 this year. What is my Solo 401(k) limit?", "Split my max contribution into employee and employer parts for my LLC".
Who makes the Solo 401k Calculator plugin for ChatGPT?
The ChatGPT listing names Shore District Software LLC as the developer. The version listed on 8 October 2026 was 2.0.0.
How do I add Solo 401k Calculator to ChatGPT?
Open the Solo 401k Calculator listing in ChatGPT, click Install plugin, sign in to your Solo 401k Calculator account and approve the access it asks for. Then ask for what you need in a chat, mentioning Solo 401k Calculator if ChatGPT does not pick it up.
Can Solo 401k Calculator change things in my account, or only read?
It works only with the income, age and business details you type into the chat. The listing does not mention any account connection.
Who is the Solo 401k Calculator plugin for?
Self-employed people saving for retirement, s-corp owners paying themselves a salary and freelancers comparing contribution limits.
Which business types does the Solo 401k Calculator support?
The listing names sole proprietorships, LLCs and S-corps.
Which tax years does it use?
The listing says it is updated for the 2025 and 2026 contribution limits.
Is the result tax advice?
No. The listing says it is for education only and suggests asking a professional before making decisions.
Does Solo 401k Calculator see my ChatGPT chats?
When Solo 401k Calculator is connected, ChatGPT may share the parts of your chats and memories that matter for a request with Solo 401k Calculator. What Solo 401k Calculator does with that data falls under its own terms and privacy policy. ChatGPT keeps your training-data settings, and you can disconnect at any time.
How do I disconnect Solo 401k Calculator from ChatGPT?
Open your ChatGPT settings, go to apps, and disconnect Solo 401k Calculator. You can reconnect later from the listing.
What are alternatives to Solo 401k Calculator in ChatGPT?
Similar plugins in the ChatGPT marketplace include Finara Personal Finance, BizCover AU and Fakturoid. Each has its own page in this directory.
Privacy and your data
When Solo 401k Calculator is connected, ChatGPT may share the parts of your chats and memories that matter for a request with Solo 401k Calculator. What Solo 401k Calculator then does with that data falls under its own terms and privacy policy, not only OpenAI's. ChatGPT keeps your training-data settings for data that comes from connected apps, and you can disconnect at any time.
Solo 401k Calculator privacy policy ↗Solo 401k Calculator terms ↗OpenAI: apps in ChatGPT ↗