Commission-based income can make your paycheck feel unpredictable, but the math behind it is straightforward. This calculator adds your base salary to your commission earnings so you always know what a given sales month is actually worth before it ends.
Step 1. Enter your total sales for the period you're calculating.
Step 2. Enter your commission rate as a percentage of sales.
Step 3. Enter your base salary for the same period. The result is your total earnings.
With the default inputs loaded in the form, the calculator produces a starting result you can use as a baseline. Change one field at a time to compare a new scenario.
Commission structures vary widely. Some are simple percentage commissions on all sales. Others use tiered rates that increase as you hit targets. Some include draws against commission. This calculator covers the most common structure — a flat commission rate applied to total sales, plus a base salary.
When comparing two job offers with different commission structures, don't just compare base salaries. Calculate what each role would pay at your expected or historical average sales performance. The role with the lower base but higher commission rate might pay significantly more in a good month — and significantly less in a slow one.
Knowing your commission earnings in real time helps you make better decisions mid-month. If you can see that you're $4,000 short of hitting your next tier threshold with two weeks left in the period, you can decide whether to push for more calls, deals, or upsells with full awareness of what the extra effort is worth.
Commission is taxed as ordinary income, just like your salary. However, if your employer withholds a flat 22% on commission checks (which is common), you may owe more or less than that depending on your actual tax bracket and deductions.
Real estate agents typically earn 2.5–3% of the sale price. Software sales roles often see 8–12% of contract value. Retail varies widely, usually 3–10%. Insurance agents can see anywhere from 5–40% depending on the product and carrier.
Enter your monthly income and key expense categories to instantly see your surplus, deficit, and savings rate.
Add up your assets and liabilities to calculate your real net worth — the true measure of your financial position.
Calculate your emergency fund target based on monthly expenses and see exactly how much more you need to save.
See your monthly cash flow by comparing income against fixed expenses, variable expenses, and savings allocations.
Disclaimer: Results from this calculator are for informational and planning purposes only and do not constitute financial, legal, or professional advice. Always verify important calculations with a qualified professional.
