How to use the commission calculator
Enter the sales amount credited under your plan, the commission percentage, and any base pay for the same period. The calculator multiplies sales by the commission rate, then adds base pay.
Commission formula
Real commission plans can include tiers, quotas, draws, caps, accelerators, product-specific rates, clawbacks, or delayed crediting. This tool models one flat rate.
Example: Sam combines commission and base pay
Sam earns 5% on $20,000 of eligible sales during a month, giving $1,000 in commission. With $2,000 of base pay for the same month, total gross pay is $3,000.
A tiered plan or a plan based on gross profit needs a separate calculation for each tier or the correct commission base. Returns and clawbacks are not automatically deducted.
How commission rate changes earnings
A straight commission is calculated by multiplying eligible sales by the commission rate. A 5% rate means $5 of commission for each $100 of eligible sales before any adjustments in the compensation plan.
The important word is eligible. Real plans can exclude returns, discounts, taxes, shipping, uncollected invoices, or other amounts from the commissionable base.
Base pay plus commission
When a role includes base pay, the calculator adds the entered base amount to the calculated commission for the period. Make sure both numbers cover the same time period before interpreting the total.
For example, do not add a monthly commission amount to an annual base salary unless you first convert one of them to the same period.
Tiered commissions and quotas need a different model
Some plans use different rates after a salesperson reaches a quota, accelerators above target, caps, clawbacks, draws, or bonuses. A single percentage cannot reproduce those rules.
Use this page for straight-rate scenarios or for one tier at a time. For payroll or contract reconciliation, follow the written compensation plan.
Assumptions and limitations
What the estimate assumes
Tiered or quota-based commission plans are not modeled automatically.
Commission Calculator FAQs
How do I calculate a 5% commission?
Multiply the credited sales amount by 0.05. For example, 5% of $10,000 is $500.
Does this include taxes?
No. The result is gross commission and gross combined pay.
Can I include base salary or hourly pay?
You can enter a base-pay amount for the same period, but the calculator does not convert between payroll periods automatically.
What if my commission rate changes after a quota?
Run each tier separately or use the rate that applies to the sales segment you are checking.
Does commission include base salary?
Commission itself is the variable earnings amount. If the role has base pay, this calculator can add the entered base amount to commission so long as both values represent the same pay period.
Use your actual compensation plan for payroll decisions. This calculator models a single flat commission rate.