Spending Cuts vs. Raising Income
Two roads to a higher savings rate
Raising your savings rate requires either spending less or earning more, and the two are not equivalent. Spending cuts are more powerful per dollar; income increases have no ceiling. Which one you should focus on depends on where you currently are.
The case for cutting spending
A permanent reduction helps twice. It frees money to invest and it lowers the portfolio you need, because your FI number is a multiple of your spending.
Cutting $400 a month lowers your target by roughly $120,000 while adding $4,800 a year to your investing. A raise of the same size only does the second part.
Cuts also take effect immediately and are within your control, which is not true of promotions.
The case for raising income
Expense cutting has a hard floor. Once housing, food, and transportation are reasonable, further trimming produces small amounts and real misery.
Income has no equivalent limit. A promotion, a job change, or a side business can add thousands a month, which no budget adjustment could match.
Career moves also compound. A higher salary raises the base for every future raise, and the effect accumulates across decades.
- A $400 monthly cut lowers your FI target by roughly $120,000.
- A $400 monthly raise only increases savings, not the target.
- Housing, transportation, and food are the three categories worth examining.
- Income increases only count if they are not absorbed by lifestyle.
- Both approaches together compound faster than either alone.
Where the cuts actually are
Housing is usually the largest line item. A smaller place, a roommate, or a move to a cheaper area moves the number more than every subscription combined.
Transportation is second. Keeping a paid-off car for three extra years, or dropping to one vehicle, frees hundreds a month permanently.
Food is third, and it responds to habits rather than restriction. Cooking most meals is usually worth several hundred a month for a household.
Where the income is
Changing employers has historically produced larger raises than staying, because internal increases are often capped by policy.
Negotiating an offer is a short conversation with an outsized return. Even a modest improvement compounds across every subsequent year at that employer.
Side income works for some people and not others. It converts time into money directly, which is useful and does not compound the way a higher salary does.
Avoid the trap at both extremes
Extreme frugality that makes your life joyless is not sustainable, and abandoned plans produce no financial independence at all.
Chasing income while letting spending rise to match is the more common failure. Plenty of high earners have savings rates that would embarrass a modest one.
The durable approach is holding spending roughly flat while income grows, so the savings rate rises without anything feeling like deprivation.
Check your savings rate once a year. If it is not rising alongside your income, the increases are being absorbed somewhere you have not examined.
Try these inputs
- Baseline: your current spending and savings
- Cut path: reduce spending by $400 a month
- Earn path: increase income by $400 a month with spending flat