Salespeople, account managers, real estate agents, and freelance reps live or die by one number: what you actually take home after a month of closed deals. Base salary aside, commission is where the real upside is — and where the most confusion hides. Is that 5% paid on gross sales or net of returns? Does the bonus tier apply to every dollar or only the dollars above the threshold? And how much of your already-issued advance gets clawed back on the next check?
This commission calculator answers all of those questions in seconds. Enter your gross sales, your base commission rate, an optional tiered bonus threshold, returns and refunds, and any draw or advance you were already paid. The result card separates commissionable net sales, base commission, over-tier bonus, gross commission, and your final net earnings — so you can see exactly how each rule in your comp plan moves your paycheck.
How to Use
- Enter Gross Sales Revenue — the total value of deals you closed or invoices you wrote this period, before any returns.
- Set your Base Commission Rate. This is the percentage your contract pays on commissionable sales, typically 3%–10% for inside sales, 2%–6% in real estate, and 10%–20% for independent reps.
- Expand the advanced options to model a Bonus Tier Threshold and an Over-Tier Bonus Rate. Many plans pay a higher rate on every dollar above a monthly target — for example, 5% on the first $50,000 of net sales and an extra 2% on everything above it. If your plan is flat, leave the threshold at 0.
- Add Returns & Refunds for deals that fell through, product that came back, or invoices that were canceled. Most companies pay commission on net sales, not gross.
- Enter the Draw / Advance Already Paid if your employer fronted you a guaranteed amount this period. That advance is deducted from your earned commission before payday.
- Read the result card from top to bottom: net sales, base commission, over-tier bonus, gross commission, and your highlighted Net Earnings After Advance.
The engine treats the over-tier rate as an override — it applies only to the portion of net sales above the threshold, not to the whole number. That is the single most common source of miscalculation, and this calculator applies it the way most commission plans actually write it.
How Commission Is Calculated
The math is straightforward once you separate gross from net:
Net Sales = Gross Sales − Returns & Refunds
Base Commission = Net Sales × Base Rate
Over-Tier Bonus = max(0, Net Sales − Bonus Threshold) × Bonus Rate
Net Earnings = (Base Commission + Over-Tier Bonus) − Advance Paid
Worked example: you close $100,000 in gross sales, run $0 in returns, and earn 5% with a 2% over-tier bonus on everything above $50,000, against a $1,000 advance. Net sales are $100,000; base commission is $5,000; the bonus tier kicks in on the extra $50,000, adding $1,000; gross commission is $6,000; and after the $1,000 advance, your net earnings are $5,000. Run the same numbers without the over-tier bonus and you would have taken home only $4,000 — which is precisely why pushing past a tier threshold pays off so quickly.
If your net sales land at or below the bonus threshold, the over-tier line is zero and the formula collapses to the simple straight-commission model every rep learns first. If sales are zero, every line is zero — there is no commission on nothing.
Flat vs. Tiered vs. Gross Margin Plans
Not every commission plan is built the same way, and this calculator models the two most common structures:
- Straight commission — one flat percentage on net sales. Set the bonus threshold to 0 and only the base rate matters.
- Tiered / graduated commission — a lower rate up to a target and a higher rate beyond it, designed to reward over-performance. Use the bonus threshold and over-tier rate fields.
- Draw against commission — a guaranteed advance paid weekly or monthly, later subtracted from earned commission. Enter it in the advance field.
Some companies instead pay commission on gross margin (revenue minus cost of goods) rather than on the sale price. If that is your plan, type your margin-based number into Gross Sales Revenue and your margin will already be baked in — the percentages then apply to the margin dollar, which is what your contract intends.
Examples
Example 1 — A standard month. A B2B rep closes $100,000 in gross sales with no returns on a 5% plan, a $50,000 bonus threshold at an extra 2%, and a $1,000 advance. Net sales are $100,000; base commission is $5,000; over-tier bonus is $1,000; gross commission is $6,000; net earnings after the advance come to $5,000.
Example 2 — Returns eat into the check. A rep writes $80,000 in sales but $5,000 of deals are canceled. At 4% on a $50,000 threshold with a 1% over-tier rate and a $500 advance, net sales are $75,000; base commission is $3,000; the tier bonus on the extra $25,000 is $250; gross is $3,250; and net earnings after the advance are $2,750. Notice the canceled $5,000 reduced not just the base commission but also the tier bonus that would have been calculated on it.
Example 3 — A high-volume windfall. A top performer books $2,000,000 in a single month on a 6% plan with a $1,000,000 threshold and a 1.5% over-tier rate. Base commission is $120,000; the bonus tier adds $15,000 on the million above threshold; gross commission is $135,000. Running this number before you sign a contract helps you negotiate what the over-tier rate should really be.
FAQ
How do I calculate my commission pay?
Multiply your commissionable net sales (gross sales minus returns) by your commission rate. If you have a tiered plan, add an extra rate on the portion of sales above your threshold, then subtract any advance or draw already paid. This calculator applies all of those steps automatically.
Is commission based on gross sales or net sales?
Most professional sales plans pay commission on net sales — the amount actually collected after returns, refunds, and canceled orders. Some pay on gross invoiced sales, and a smaller group pays on gross margin. Check your compensation agreement; if you are paid on net, enter your returns in the Returns & Refunds field.
What is an over-tier or tiered commission rate?
A tiered (or graduated) plan pays one rate up to a sales target and a higher rate on every dollar above that target. For example, 5% up to $50,000 and 7% on the excess. This calculator models the extra rate as applying only to the dollars above the threshold, not to your whole sales number.
What is a draw against commission?
A draw is a guaranteed advance paid to a salesperson during low-volume periods, later deducted from the commissions they earn. If you were paid a $1,000 draw this month and earned $6,000 in commission, your actual payout is $5,000 — which is exactly what the advance field does.
Do I pay commission on returned or canceled deals?
Usually no. Reps rarely earn commission on sales that are later returned or refunded, and many companies even charge back (claw back) previously paid commission on canceled deals. Enter your returns in the calculator to see how they reduce both your base commission and your tier bonus.
How much commission does a sales rep usually make?
Base commission rates vary widely by industry: inside sales often sit at 5%–10%, real estate agents split a 2%–3% side of a 5%–6% total commission, and independent manufacturer reps commonly earn 10%–20% of net sales. Tiered bonuses and draws can swing the final number by thousands of dollars per month.
Disclaimer
This commission calculator is provided for informational purposes only and does not constitute financial, legal, tax, or employment advice. Results are estimates based on the inputs you enter and the standard tiered-commission formula; your actual earnings depend on the exact wording of your compensation plan, clawback clauses, territory splits, draws, and local payroll rules. Always confirm commission rates, thresholds, and deductions with your employer, broker, or a qualified payroll professional before relying on these figures for budgeting or negotiation.