Commission Income Budget Calculator
How the five-way split works
This is a simple starting point for splitting up whatever you bring home — not a rulebook. Adjust any category and the other four will shift to keep everything adding up to 100%.
- Essential Expenses — 55%
- Housing, food, transportation, and other bills that keep life running.
- Fun Money — 5%
- Spend it, no explanation needed. A little breathing room every month.
- Debt or Investing — 10%
- Paying down what you owe. No debt? Put it toward investing instead.
- Short-Term Savings — 15%
- The next year or two: a trip, a repair, a cushion for the unexpected.
- Long-Term Investing — 15%
- Retirement and the far-off future. Small and steady wins here.
This is a general guideline for organizing your own money, not financial advice.
How to budget when you work on commission
Commission checks, tips, bonuses, gig payouts — when your income changes every month, "take your monthly income and divide it up" is a joke. Which month? The great one in March or the dead one in July? Budgeting apps built around a salary quietly assume you don't exist, and then make you feel like the problem when their system doesn't fit.
The fix isn't a more complicated app. It's picking the right number to budget from — and that number is your lowest typical month, not your average.
Why your lowest typical month, not your average
Averages lie to commission earners. If you average $3,500 a month but your slow months land around $2,000, a budget built on $3,500 fails exactly when you can least afford it — in the slow month, when the rent doesn't care that Q4 was great. Build on $2,000 instead:
- Look back at your last six to twelve months of take-home pay. Ignore the outliers — the freak best month and the freak worst one.
- Pick the lowest number that shows up regularly. That's your baseline. Enter it above on the Monthly tab.
- Fit your essentials — the 55% slice — inside that baseline. If your rent and bills fit inside your worst typical month, no month can put you underwater.
What to do with the good months
Everything you earn above the baseline is where commission life gets good — but it's also where it goes wrong. The classic commission trap isn't the slow month; it's the great month that quietly raises your lifestyle, so the next slow month hurts twice as much. The move: run the surplus through the same five-way split, but tilt it hard toward the savings slices. Your essentials are already covered by the baseline, so a strong month mostly means the short-term savings and investing envelopes get fat. That short-term slice is your own personal salary-smoothing fund — it's what pays you in July for the deal you closed in March.
If your commission arrives weekly or bi-weekly
Same idea, smaller slices. Use the Weekly or Bi-Weekly tab above with your lowest typical check, and split every payment the day it lands — the percentages scale to whatever actually arrived. We wrote up the full system, including the every-paycheck version, in budgeting on an irregular income.
Putting it on paper
Once your split looks right, hit Print / Save as PDF — you'll get a clean one-page budget sheet built on your baseline month, not just whatever landed this month. On a steady paycheck instead? Try the weekly or bi-weekly calculator.