# 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.

操作できるページ：https://www.calcopenly.com/ja/finance/commission-calculator
分野：お金の計算機

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.

## 入力

- **Solve for** (選択肢：コミッション, Sales needed, Rate)
- **Commission plan** (選択肢：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** (選択肢：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.

## 結果

- Commission earned — 主な結果
- 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

## 計算式

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

## 計算例

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

- Solve for: コミッション
- 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%**
- 照合元：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: コミッション
- 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%**
- 照合元：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: コミッション
- 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%**
- 照合元：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**
- 照合元：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**
- 照合元：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**
- 照合元：Hand calculation: 5,000 ÷ 0.05

## よくある質問

### 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」の精度はどのくらいですか？

精度は入力値と計算方法の前提に依存します。十進演算には有効数字50桁を使いますが、推定、数値計算手法、元データの精度はそれより低い場合があります。表示の丸め処理でこれらの制約がなくなるわけではありません。 独立した出典の解答と照合した計算例：8。 例えば、「5% of $50,000 with a $3,000 base」はHand calculation: 50,000 × 0.05 = 2,500; 2,500 + 3,000 = 5,500; 2,500 ÷ 5,500 = 45.45%と照合しています。

### この計算方法の出典は何ですか？

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).

## 出典

- [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)

_計画の参考用です。金融機関、税務当局、市場は独自の丸め方、手数料、規則を適用します。契約などの前に該当機関へ金額を確認してください。_