The Basic Formula

At its simplest, commission equals the sale value multiplied by the commission rate. A $10,000 sale at 10% commission equals $1,000. But real world commission calculations are rarely this simple. Understanding the variations prevents expensive miscalculations.

Gross vs Net Commission

Some companies pay commission on the gross sale value (before discounts). Others pay on the net value (after discounts, returns, and adjustments). The difference can be significant. If you sell $100,000 gross but discounts reduce the net to $85,000, a 10% commission is either $10,000 or $8,500 depending on which figure the company uses. Clarify this before you start selling.

Tiered Commission Calculations

With tiered structures, your rate changes at certain thresholds. If you earn 8% on the first $50,000, 10% on the next $50,000, and 12% above $100,000, a $120,000 month looks like this: $4,000 (8% of $50,000) plus $5,000 (10% of $50,000) plus $2,400 (12% of $20,000) equals $11,400. Each tier applies only to the amount within that band.

Recurring Commission Calculations

For subscription products, calculate both the monthly commission and the annualised value. A $200 per month subscription at 15% commission pays $30 per month or $360 per year per client. Track your total monthly recurring commission across all clients to understand your baseline income.

Factoring in Clawbacks

If your agreement includes clawback provisions, set aside a reserve from each commission payment to cover potential returns. If your historical clawback rate is 5%, keeping 5% of each commission in reserve prevents cash flow surprises when clawbacks occur.

Tax Adjusted Earnings

Your gross commission is not your take home pay. In Australia, factor in income tax, GST (if registered), superannuation contributions, and business expenses. A rough guide: your net take home is typically 55% to 65% of your gross commission, depending on your tax bracket and expense level.

Using Tools to Stay Accurate

Manual commission calculations invite errors. Use a spreadsheet with verified formulas, or better yet, use a platform like Zepys that calculates your commissions automatically based on confirmed sales. Accuracy matters because even small errors compound over time and can result in significant underpayment.

Regular Reconciliation

Check your commission statements against your own records monthly. Companies make mistakes, and those mistakes rarely favour the agent. Prompt reconciliation catches errors while they are fresh and easy to resolve.