Personal Finance Decision, Tracking, and Projection Tools
Helping You Make Critical Decisions on the Way to FI, and Looking at Lots of Pretty and Exciting Plots
Note: The tools below are built using a popular programming language called Python, which is both easy to learn and run. You can download the Python script file for each tool from the Engineering Your FI GitHub page.
One day I may create nice graphical interfaces for these tools, but for now I’ve made it as easy as possible to modify and run these Python scripts. All user inputs are in a distinct “Inputs” section at the top, so all you have to do is tweak those to your liking and hit run.
If you’d like to install and run Python on your computer, you can download it and follow any number of great instructions available. I also recommend downloading and installing PyCharm (my favorite) or VS Code, which are programs that make it easier to edit and run your code.
If you’d rather not deal with installing Python, you can use one of the many online compilers (though I have not tested my scripts on these): Repl.it, Tutorialspoint, Geekflare, Programiz, Python.org, OneCompiler, OnlineGDB, PYnative, CoCalc, Online Python.
Accounting for Investment Opportunity Costs
Choosing the Optimum Health Insurance Provider and Plan
Computing Your Time To Financial Independence for Your Savings Rate
Compute Your Time to Debt Freedom and Then Subsequent Financial Independence
Assess the Impact of Expenses or Income Growth Relative to Inflation on Time to FI
Potential Future Tools
Let me know if you’d like to see one or more of these tools sooner rather than later!
FI Projection Tool
Computing Your Exact Day of Freedom!
How Much Can I Invest?
Projecting Expected Expenses to Compute Exactly How Much You Can Invest Each Month
Credit Card Selection tool
Selecting Your Optimal Next Credit Card
Travel Rewards Credit Card Tracking Tool
Tracking Tasks for Credit Cards You’re Using to Travel for (mostly) Free
Withdrawal Planning Tool
You’re FI / Retired! Time For a Withdrawal Plan – How Best to Withdraw Funds to Minimize Taxes and Maximize Flexibility
Money Saved By Biking
How Much Money You’ll Save By Biking Instead of Driving
Expense Tracking Tool
Tracking All Your Expenses, both Monthly and Yearly