Commission Calculator

How sales commissions work and how to calculate your total earnings

A sales commission is a form of variable performance-based compensation paid to sales professionals, brokers, agents, and independent contractors upon generating revenue, closing deals, or exceeding quotas. Commissions align the economic interests of sales reps with the commercial goals of their employers, rewarding top performers with substantial earning potential.

Whether you work under a straight commission plan, a base salary plus commission model, or a multi-tier accelerator bracket, knowing how your payouts are computed is essential for negotiating compensation, forecasting personal cash flow, and setting sales targets. If you receive supplemental bonuses or want to model regular ongoing wages, you can also explore our bonus calculator and biweekly pay calculator.

The 4 primary sales commission structures

Organizations structure sales compensation plans using several standard models depending on deal size, sales cycle duration, and cost of goods sold.

1. Flat rate commission (Straight percentage)

In a flat commission model, a fixed percentage is paid on all revenue generated. This model is common in real estate, retail sales, automotive sales, and straightforward wholesale transactions:

Worked example: A real estate or B2B sales agent generates $150,000 in qualifying sales at an agreed 6% flat commission rate. Their earnings are:

2. Tiered and graduated commission (Accelerators)

Graduated commission structures incentivize representatives to exceed sales quotas by increasing the percentage earned as cumulative sales volume passes defined revenue milestones. The higher rate applies progressively to dollars earned within each respective tier:

Worked example: A software account executive achieves $120,000 in monthly sales under a 3-tier accelerator plan:

• Tier 1: $0 to $25,000 at 5% rate = $25,000 × 0.05 = $1,250
• Tier 2: $25,000 to $75,000 at 8% rate = $50,000 × 0.08 = $4,000
• Tier 3: Above $75,000 at 12% rate = $45,000 × 0.12 = $5,400

The total commission payout is $1,250 + $4,000 + $5,400 = $10,650, giving an effective blended commission rate of 8.875% across the entire $120,000 volume.

3. Base salary plus commission

Many modern sales roles offer a dependable base salary combined with a commission component (often expressed as a target On-Target Earnings or OTE ratio, such as 50% base and 50% variable):

Worked example: A representative earns a $5,000 monthly base salary ($60,000 annual base) plus a 4% commission on monthly sales. If they close $80,000 in sales during the month:

4. Gross margin / profit commission

Rather than paying commission on top-line revenue, some businesses calculate commission on gross profit (revenue minus cost of goods sold). This ensures reps do not heavily discount products just to close deals, protecting company operating margins:

To evaluate business profitability and operational viability across different sales volumes, you can also use our break-even calculator and billable hours calculator.

Draw against commission explained: Recoverable vs non-recoverable

In industries with long sales incubation cycles (such as enterprise software or commercial real estate), employers frequently provide a draw against commission:

• Recoverable draw: A cash advance against future commissions. If you receive a $4,000 monthly draw and earn $6,000 in commissions, you receive an additional $2,000. If you earn only $2,500, the remaining $1,500 deficit rolls over into future months for repayment.
• Non-recoverable draw: A guaranteed minimum floor provided during an onboarding ramp period. If your commissions fall below the draw amount, you keep the full draw without carrying any debt forward to future quarters.

Frequently asked questions