Commission Calculator: Earnings From Sales and Property Deals
A commission calculator multiplies a sale amount by a commission rate to show what a salesperson, agent or broker earns from a deal. Add a base salary and you get total expected earnings, which is what matters when you are evaluating a commission-based role or a listing agreement.
Common commission structures
- Straight commission: a flat percentage of every sale, with no base pay.
- Base plus commission: a guaranteed salary topped up by a lower percentage.
- Tiered: the rate increases once you pass defined revenue thresholds.
- Split: real estate commissions are typically shared between listing and buying agents, then again with the brokerage.
Percentage of what, exactly
Commission on revenue and commission on gross profit produce very different pay. A 10% rate on a 100,000 sale with 20,000 of margin pays 10,000 — half the gross profit. Always confirm whether the rate applies to the sale price, the net price after discounts, or the profit, and whether returns claw the commission back.
Budgeting on variable income
Commission income is lumpy. Model a conservative month rather than your best month, set aside tax on every payment as it arrives, and keep a buffer that covers the slow part of your sales cycle. If the role includes a draw against future commission, check whether it is recoverable — that is a loan, not pay.
Key takeaways — Commission Calculator
- Commission = sale amount × rate; total earnings add any base salary.
- Confirm whether the rate applies to revenue, net price or gross profit.
- Plan around a realistic average month, not a record one.