Most budgeting advice assumes a paycheck that's the same every two weeks. Commission breaks that assumption in one direction only: your income is lumpy, not random. Quota is known, the plan is known, and a year of statements shows the shape. The problem is never that you can't predict it; it's that a plan built on the average month collapses in the low ones and wastes the high ones.
These steps build the plan on a floor — the month you can nearly always count on — and give every dollar above the floor a job before it arrives.
1Find your floor: base plus the commission you nearly always earn
Pull twelve months of pay. For each month, note the take-home. Your floor is roughly the third-lowest month — a number you've beaten in about three quarters of months. If your OTE is $140,000 with a $70,000 base, your floor might be $5,900 a month after tax: the base, plus the small amount of commission that shows up even in a bad quarter.
If you're new and have no history, use base alone as the floor for the first six months. A draw is not income; it's an advance you'll repay from commission, so it doesn't raise the floor either.
2Build the essentials budget on the floor alone
Rent, utilities, groceries, insurance, minimum debt payments, transportation. These have to fit inside the floor with room to spare — 80% of it is a good target. If they don't fit, the fix is the essentials, not a higher floor; a floor you've only cleared half the time isn't a floor.
The sales comp calculator lays out the year month by month from your base, quota and accelerators, so you can see the shape of the year before you commit to it.
3Smooth the lumps with a buffer account
Commission arrives on the company's schedule — a big check in month two of the quarter, nothing the month after. A buffer account between your paychecks and your spending fixes that. Pay yourself the same amount from the buffer every month; let commission checks land in the buffer and refill it.
Aim to hold one month of essentials in the buffer, separate from the emergency fund. The emergency fund is for the year the job goes wrong; the buffer is for the ordinary quarter.
4Give the above-floor money a job before it lands
The good months are where commission earners lose ground, because the money arrives without a plan and leaves the same way. Decide now what a dollar above the floor does, in order:
- Refill the buffer to one month of essentials.
- Taxes: if your withholding on commission runs light, set aside the gap. (Commission is supplemental wages; 22% federal withholding may not match your real rate.)
- Emergency fund to six months. Commission jobs are the ones that need six.
- The goal — one at a time, the biggest first.
- A fixed percentage to spend. 15% is reasonable. A plan that never lets you enjoy a big month is a plan you'll break.
5Put the big checks on the calendar
You usually know when a large deal will pay: the close date plus the company's commission cycle. A $9,000 check on May 20 is an expected income event, and once it's in the plan the goals can lean on it — the wedding fund can promise $6,000 in May instead of asking for $1,000 a month you don't have in the lean months.
Use conservative numbers. Deals slip. If the check comes in higher, that's a happy revision; if you planned on the high number and it slips a quarter, it's a broken plan.
6Re-plan every quarter, not every month
A monthly re-plan on commission is exhausting and mostly noise. Quarterly matches the pay cycle: look at how the floor held, whether the buffer refilled, what the above-floor money actually did. If accelerators kicked in, raise the goal contributions; if quota moved, re-check the floor.
The plan, in Allocate
You'd say: "My base is $70k, OTE $140k, paid quarterly. Build me a plan I can keep in a bad quarter." The plan Allo-Bot proposes reads roughly like this:
- Floor: $5,900 a month after tax. Essentials hold at $4,700.
- Buffer account funded to $4,700 first; every commission check lands there.
- Expected income: commission, around the 20th of Feb, May, Aug, Nov — planned at $6,500 each, the low end of the last year.
- Above-floor order: buffer → tax set-aside (8% of each check) → emergency fund to six months → house fund → 15% to spend.
- House fund: $1,000 a month from the floor, plus $3,500 from each quarterly check; on track for $30,000 by next October.
When a deal pays more than planned, you say so — "May came in at $11,000" — and the plan proposes where the extra goes. Nothing moves until you approve it.
Frequently asked questions
How do I budget if my commission is paid monthly but varies a lot?
Same method, shorter cycle: the floor is the third-lowest month of the last twelve, essentials fit inside it, and everything above it follows the same order. The buffer matters more, not less — hold one full month of essentials in it.
Should the emergency fund be bigger on commission?
Yes. Six months of essentials rather than three. A commission role can go from a great year to a territory change in a quarter, and the fund is what keeps a bad quarter from becoming a bad decision.
What about a draw against commission?
Treat a draw as a loan from your employer, because it is. It raises this month's cash but lowers a future check; don't build the floor on it, and track the balance so a strong quarter's check doesn't surprise you by being smaller.
This guide is educational and uses invented numbers — not investment, tax or legal advice. Your income, taxes and goals are your own; talk to a qualified professional about your situation.