Why so many closers get their math wrong
As an independent closer, your commission calculation often lives in a corner of a spreadsheet, copied by hand deal after deal. That works fine... until the day you have fifteen prospects in progress, different rates depending on the offer, payments split across installments, and no clear idea anymore of what you'll actually take home this month. The problem isn't the calculation itself — it's simple — it's the lack of reliable tracking over time.
The base formula: cash collected × commission rate
In most closing setups, the commission is calculated like this:
Commission = Cash collected × Commission rate
Example: a deal signed for €3,000, with a 10% commission rate. If the client pays the full amount, your commission is €300. Simple — as long as you clearly separate what's signed from what's actually collected.
The "signed deal" vs "cash collected" trap
Many closers calculate their commission on the total signed contract value. The problem: if the client pays in installments (say, 3 monthly payments of €1,000), your commission doesn't land all at once. It builds up as the actual payments come in. Mixing up the two completely distorts your personal cash-flow picture — you end up thinking you're richer than you actually are this month.
Payout timing lag (month N vs month N+1)
Another classic trap: commission generated on a month-N payment is usually credited only in month N+1 (it takes time for the company to process payments). If you don't plan for this, you risk budgeting around money that won't actually arrive until next month. Keeping a clear record of "what was collected" versus "what was paid out" avoids unpleasant surprises.
Full step-by-step example
Imagine a month with 3 closed prospects, at different rates depending on the offer sold:
- Prospect A — €2,000 collected, 5% rate → €100
- Prospect B — €4,500 collected, 10% rate → €450
- Prospect C — €1,800 collected, 15% rate → €270
Total commission for the month: €820. Without structured tracking, this calculation takes ten minutes and a calculator at the end of every month — and every missed rate or forgotten payment throws off the total.
Common mistakes to avoid
- Forgetting to deduct a commission already paid out in case of a cancellation or refund.
- Not tracking partial payments (a deal paid in 3 installments is 3 lines, not one).
- Mixing several commission rates without clearly tying each one to its prospect.
- Not distinguishing the payment collection date from the commission payout date.
How to automate this calculation
This is exactly the problem Close It solves: every payment automatically triggers your commission calculation, with your rate and your prospect pipeline centralized in one place. No more spreadsheet to update by hand, no more forgotten rate — you know in real time what you've earned this month.