On This Page
- Flat or tiered: two ways to pay
- Tiers work like tax brackets
- Splits multiply, they do not add
- Base salary, OTE and sales targets
- Typical rates by industry
- Tax and spreadsheets
- How the tier math is verified
- FAQ
- References
Flat or Tiered: Two Ways to Pay
A flat plan applies one rate to every sale: Commission = Sales × Rate. $50,000 at 6% is $3,000, and with a $3,000 base the month pays $6,000. A tiered plan pays a higher rate as sales grow, but only on the sales inside each band.
In From sales amount mode, enter sales, choose flat or tiered, and optionally add a base salary and your split. The results show commission, total pay, your share after the split, what goes to the house or broker, and the effective rate, the one blended percentage the deal worked out to. Sales needed for target mode runs backward from the income you want.
Tiers Work Like Tax Brackets
With the default plan of 3% up to $50,000, 5% from $50,000 to $100,000 and 8% above that, a software rep who closes $150,000 earns:
| Slice of sales | Rate | Commission |
|---|---|---|
| First $50,000 | 3% | $1,500 |
| $50,000 to $100,000 | 5% | $2,500 |
| Above $100,000 ($50,000) | 8% | $4,000 |
| Total | 5.33% effective | $8,000 |
The most common mistake is applying the top rate to the whole amount, which would claim $12,000. Crossing a threshold never raises the rate on the sales below it. Accelerators, higher rates above 100% of quota, are the same idea: set the last threshold at the quota.
Splits Multiply, They Do Not Add
Commission often passes through more than one pair of hands. The split % field is your final share, however many steps it took to get there. Multiply each split as a decimal: a 50/50 split between brokerages, then keeping 70% of your brokerage's half, is 0.50 × 0.70 = 35%.
On a $420,000 home at a 5% total commission, that is $21,000 overall and $7,350 to the agent. Two 50% splits in a row leave 25%, not 50%. For current real estate rates and who pays since the 2024 NAR settlement, see average real estate commission rates.
Base Salary, OTE and Sales Targets
On-target earnings (OTE) are base salary plus the commission you would earn at 100% of quota. A $40,000 base with $30,000 expected commission is a $70,000 OTE, an expectation, not a guarantee. A low base with a rich plan only beats a high base if the quota is realistic. The Break-Even Point Calculator shows the sales you need just to cover your fixed costs.
Working backward is a single division: required sales = (target − base) ÷ rate.
- $8,000 of total pay on a $3,000 base at 10%: ($8,000 − $3,000) ÷ 0.10 = $50,000 in sales.
- $9,000 of pure commission at 6%: $9,000 ÷ 0.06 = $150,000. If quota realistically tops out lower, you want to know on day one. The Savings Goal Calculator shows what a month like that does for a longer-term target.
Typical Rates by Industry
| Field | Typical structure |
|---|---|
| Retail and call centers | 2–10%, often on top of an hourly wage, frequently tiered by monthly quota. A $45,000 month at 4% plus a $2,200 base pays $4,000. |
| Real estate | 5–6% of the sale price, split between sides, then between agent and brokerage |
| B2B, SaaS and tech | Base is often 40–60% of OTE, with tiers or accelerators above quota |
| Insurance | A higher first-year rate plus a smaller renewal ("trail") rate, run as two flat calculations |
To compare an hourly base with a salaried offer, convert it first with the Hourly to Salary Calculator. If you are thinking of going independent instead, the Freelance Rate Calculator shows what a consulting rate has to cover that a base salary used to.
Tax and Spreadsheets
In the US, commission counts as supplemental wages, which employers may withhold at a different flat rate than salary, though the tax actually owed for the year depends on total income. Every figure here is before tax. For take-home pay, run the total through the Gross to Net Pay Calculator. This is not tax advice: withholding rules vary by country and payroll system.
In Excel or Google Sheets, with sales in B2, the tier 1 cap in E2 and its rate in F2, the tier 2 cap in G2 and its rate in H2, and the tier 3 rate in I2:
=MIN(B2,E2)*(F2/100) + MAX(0,MIN(B2,G2)-E2)*(H2/100) + MAX(0,B2-G2)*(I2/100)
The MIN and MAX functions cap each tier at its own range, which is what stops the top rate reaching every dollar. A flat rate is simply =B2*(C2/100).
How the Tier Math Is Verified
Flat-rate commission is one multiplication: sales amount times your rate. Tiered commission works through the sales amount in slices: the code caps the amount assigned to tier one at your tier-one threshold, assigns whatever sales fall between the tier-one and tier-two thresholds to tier two, and sends everything above that to tier three, applying each tier's own rate only to its slice before summing the three results. On $150,000 in sales split across the default 3%/5%/8% structure with $50,000 and $100,000 thresholds, the 8% rate only ever touches the $50,000 above the second threshold, not the full $150,000, which is why tiered totals come in lower than sales times the top rate.
Frequently Asked Questions
How do you calculate commission on net sales versus gross sales?
Gross sales commission uses the full invoice or contract value. Net sales commission subtracts returns, discounts, and sometimes shipping or sales tax before applying the rate. Check the compensation plan document for the exact definition of "sales" it uses, since this single detail can noticeably change a commission payout.
Is sales commission calculated before or after sales tax?
Almost always before sales tax. Sales tax is collected on behalf of the government and passed through, not revenue the business or the rep earned, so most commission plans explicitly exclude it from the base used to calculate commission.
References
- IRS Publication 15 (Circular E), Employer's Tax Guide: defines commission as supplemental wages and explains federal withholding treatment.
- U.S. Department of Labor: Fair Labor Standards Act (FLSA): federal wage and hour rules that apply to commissioned sales employees, including the retail and service establishment exemption.
- National Association of Realtors (NAR): industry reference for how real estate commission structures and brokerage splits typically work.