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Budgeting
Split and track spending against 50/30/20 and similar guidelines.
50/30/20
Split net income into 50% needs, 30% wants, and 20% savings.
Rule of thumb
Savings Rate
The share of your income you keep instead of spend, the single number most tied to how fast you reach financial independence.
Formula
Expense Ratio
The share of income spent across all categories, the mirror image of your savings rate.
Formula
Housing Ratio
The share of income spent on housing, one of the biggest single costs to get right.
Formula
Yearly Savings Recap
Work out how much you saved this year from your start/end balance and income, no expense tracking required.
Formula