Financial Collection
Clear financial tools for engineers and high-income professionals.
Practical calculators and plain-English explanations for 401(k), Roth, RSU, and FIRE decisions.
Current tool
Estimate remaining after-tax 401(k) contribution room and understand how Mega Backdoor Roth works.
Mega Backdoor Roth CalculatorEducational content
Mega Backdoor Roth Guide
IRS contribution limits
Employer match explanation
Before-tax vs after-tax explanation
Future financial tools
RSU Tax Calculator
FIRE Calculator
401(k) Calculator