# Commission calculator

> Calculate sales commission at a flat or tiered rate, total pay with base salary, the effective rate, and the sales needed to earn a target commission.

交互版本：https://www.calcopenly.com/zh/finance/commission-calculator
主题：财务计算器

Commission is sales × rate. With tiers, a marginal plan pays each rate only on the sales inside its tier, like tax brackets; a whole-amount plan pays the rate of the highest tier reached on every dollar. Base salary is added to get total pay, and commission ÷ sales gives the effective rate. Working backwards, the calculator finds the sales needed for a target commission, or the flat rate implied by a sale and its commission.

With the defaults, $50,000 of sales at a flat 5% earns $2,500 of commission, and a $3,000 base brings pay to $5,500. Under the example tiers of 3% to $25,000, 5% to $75,000 and 7.5% above, $100,000 of sales earns $5,125 on a marginal plan and $7,500 on a whole-amount plan.

Enter one tier per line as the sales amount where it starts and its rate. Returns, draws against commission and caps are not modelled.

## 输入

- **Solve for** (选项：佣金, Sales needed, Rate)
- **Commission plan** (选项：Flat rate, Tiered)
- **Sales amount**
- **Commission rate**
- **Tiers: sales where each starts, and its rate (one per line)**: Each tier runs from its starting amount up to the next tier's start; the last one has no upper limit. Sales below the first start earn nothing.
- **Tier rates apply to** (选项：Only the sales inside each tier (graduated), All sales, at the rate of the tier reached)
- **Target commission**
- **Commission paid**
- **Base pay for the same period**: Salary or draw for the period the sales cover; enter 0 for straight commission.

## 结果

- Commission earned — 主要结果
- Sales needed
- Commission rate
- Total pay (base + commission)
- Effective commission rate
- Rate on the next dollar of sales
- Commission as a share of total pay

## 公式

$$
C = S \times r \quad\text{(flat)},\qquad C = \sum_k r_k \max\!\big(0,\ \min(S, U_k) - L_k\big) \quad\text{(graduated tiers)}
$$

## 计算示例

### 5% of $50,000 with a $3,000 base

- Solve for: 佣金
- Commission plan: Flat rate
- Sales amount: 50,000
- Commission rate: 5%
- Base pay for the same period: 3000
- **Commission earned: 2,500.00**
- **Total pay (base + commission): 5,500.00**
- **Effective commission rate: 5%**
- **Commission as a share of total pay: 45.5%**
- 核验来源：Hand calculation: 50,000 × 0.05 = 2,500; 2,500 + 3,000 = 5,500; 2,500 ÷ 5,500 = 45.45%

### Graduated tiers on $100,000

- Solve for: 佣金
- Commission plan: Tiered
- Sales amount: 100,000
- Tiers: sales where each starts, and its rate (one per line): 0 3% / 25000 5% / 75000 7.5%
- Tier rates apply to: Only the sales inside each tier (graduated)
- Base pay for the same period: 0
- **Commission earned: 5,125.00**
- **Effective commission rate: 5.125%**
- **Rate on the next dollar of sales: 7.5%**
- 核验来源：Hand calculation: 3% × 25,000 + 5% × 50,000 + 7.5% × 25,000 = 750 + 2,500 + 1,875

### Whole-amount tiers on $100,000

- Solve for: 佣金
- Commission plan: Tiered
- Sales amount: 100,000
- Tiers: sales where each starts, and its rate (one per line): 0 3% / 25000 5% / 75000 7.5%
- Tier rates apply to: All sales, at the rate of the tier reached
- Base pay for the same period: 0
- **Commission earned: 7,500.00**
- **Effective commission rate: 7.5%**
- 核验来源：Hand calculation: the 7.5% tier is reached, so 7.5% × 100,000

### Sales needed for $5,000, graduated tiers

- Solve for: Sales needed
- Commission plan: Tiered
- Tiers: sales where each starts, and its rate (one per line): 0 3% / 25000 5% / 75000 7.5%
- Tier rates apply to: Only the sales inside each tier (graduated)
- Target commission: 5000
- Base pay for the same period: 0
- **Sales needed: 98,333.33**
- **Commission earned: 5,000.00**
- 核验来源：Python fractions: 750 + 2,500 = 3,250 by 75,000; 75,000 + 1,750 ÷ 0.075 = 98,333.33

### Sales needed on a whole-amount plan lands on a tier start (edge)

- Solve for: Sales needed
- Commission plan: Tiered
- Tiers: sales where each starts, and its rate (one per line): 0 3% / 25000 5% / 75000 7.5%
- Tier rates apply to: All sales, at the rate of the tier reached
- Target commission: 5000
- Base pay for the same period: 0
- **Sales needed: 75,000.00**
- **Commission earned: 5,625.00**
- 核验来源：Hand calculation: 5,000 ÷ 0.03 and 5,000 ÷ 0.05 overshoot their tiers; at 75,000 the 7.5% tier pays 5,625 ≥ 5,000

### Sales needed at a flat 5%

- Solve for: Sales needed
- Commission plan: Flat rate
- Commission rate: 5%
- Target commission: 5000
- Base pay for the same period: 0
- **Sales needed: 100,000.00**
- 核验来源：Hand calculation: 5,000 ÷ 0.05

## 常见问题

### How do you calculate commission?

Multiply the sale by the commission rate written as a decimal. A 5% commission on a $50,000 sale is 50,000 × 0.05 = $2,500. With a base salary of $3,000 for the same period, total pay is $5,500. To find the rate from a paid commission, divide commission by sales: $1,800 on $40,000 is 4.5%.

### How does tiered commission work?

On a marginal (graduated) plan each rate applies only to the sales within its band. With 3% up to $25,000, 5% from $25,000 to $75,000 and 7.5% above, $100,000 of sales pays 750 + 2,500 + 1,875 = $5,125, an effective 5.125%. On a whole-amount plan the 7.5% tier reached applies to all $100,000, paying $7,500. Check which method your plan uses.

### How much do I need to sell to earn a target commission?

Divide the target by the rate on a flat plan: $5,000 at 5% needs $100,000 of sales. On the marginal tiers above, the first two tiers pay $3,250 by $75,000 of sales, and the remaining $1,750 at 7.5% takes $23,333.33 more, so $98,333.33 in total. On the whole-amount version, $75,000 of sales already pays $5,625.

### What is a typical real estate commission?

There is no set rate: commissions are negotiable between the client and the brokerage. Under the National Association of Realtors settlement, in force since 17 August 2024, offers of compensation can no longer appear on the multiple listing service, and agents working with a buyer need a written agreement before touring a home. Whatever rate is agreed, commission = sale price × rate, split between the brokerages as they agree.

### Do employees paid on commission get overtime?

Usually yes. A retail or service employee is exempt from overtime under section 7(i) of the Fair Labor Standards Act only if the regular rate exceeds 1.5 times the minimum wage in overtime weeks and more than half of total earnings over a representative period are commissions (DOL Fact Sheet #20). With a $3,000 base and $2,500 of commission, commission is 45.5% of pay, so the exemption does not apply.

### “Commission calculator”有多准确？

准确性取决于输入值和方法的假设。十进制运算使用50位有效数字，但估算、数值方法和源数据的精度可能较低；显示时的舍入并不能消除这些限制。 已按独立来源核验的计算示例：8。 例如，“5% of $50,000 with a $3,000 base”根据Hand calculation: 50,000 × 0.05 = 2,500; 2,500 + 3,000 = 5,500; 2,500 ÷ 5,500 = 45.45%进行核验。

### 这种方法出自哪里？

U.S. Department of Labor, Fact Sheet #20: Employees paid commissions by retail establishments who are exempt under section 7(i) from overtime; National Association of Realtors: Settlement FAQs (practice changes effective 17 August 2024).

## 来源

- [U.S. Department of Labor, Fact Sheet #20: Employees paid commissions by retail establishments who are exempt under section 7(i) from overtime](https://www.dol.gov/agencies/whd/fact-sheets/20-flsa-commissions-retail)
- [National Association of Realtors: Settlement FAQs (practice changes effective 17 August 2024)](https://www.nar.realtor/the-facts/nar-settlement-faqs)

_仅用于规划。贷款机构、税务机关和市场采用各自的舍入方式、费用和规则；作出承诺前，请向相关机构确认数值。_