Affiliate Commission Calculator

Affiliate marketing income depends on the interplay of four variables: how much traffic you send to an offer, how well that traffic converts into buyers, the average value of each sale, and the commission rate the program pays. This affiliate commission calculator lets you model all four variables so you can project monthly and annual affiliate revenue, calculate your earnings per click (EPC), and understand how improving each variable affects your bottom line. Use it to compare programs, set traffic targets, and evaluate whether a new niche or offer is worth pursuing. The calculator also shows how many sales you need each month to hit a target income, helping you work backward from a revenue goal to the traffic and conversion numbers you need to achieve it.

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Affiliate earnings formula

Monthly Sales = Monthly Clicks x (Conversion Rate / 100)
Commission per Sale = Average Order Value x (Commission Rate / 100)
Monthly Earnings = Monthly Sales x Commission per Sale
Annual Earnings = Monthly Earnings x 12
EPC = Monthly Earnings / Monthly Clicks

Frequently asked questions

What is a good affiliate commission rate?

Commission rates vary widely by industry. Physical products on Amazon Associates pay 1-10%. Software and SaaS programs typically pay 20-40% recurring. Digital products and courses pay 30-50% or more. High-ticket financial products (mortgages, insurance) pay flat fees of $50-200 per lead. Digital and subscription products generally offer the best commission rates for affiliates.

What is EPC in affiliate marketing?

EPC stands for Earnings Per Click. It measures how much you earn on average for each click you send to an offer. EPC = Total Earnings / Total Clicks. A high EPC means your audience converts well for that offer. EPC helps you compare the profitability of different affiliate programs even when commissions and conversion rates vary.

What conversion rate should I expect for affiliate traffic?

Conversion rates for affiliate traffic vary by niche, traffic quality, and offer quality. A rate of 1-3% is typical for cold traffic to a product page. Warm traffic from a trusted email list or review site can convert at 3-10%. Comparison pages and high-intent search traffic can achieve 5-15%. Start with a conservative 1-2% when projecting income from a new affiliate relationship.

How do affiliate cookies and attribution work?

When a user clicks your affiliate link, a cookie is placed in their browser linking their session to your affiliate account. If they purchase within the cookie window (commonly 24 hours for Amazon, 30-90 days for many programs), you receive the commission. Cookie duration is a key factor when comparing programs - a 90-day cookie gives you credit for purchases that happen weeks after the initial click.

Do I pay taxes on affiliate commission income?

Yes. Affiliate commissions are ordinary business income. If you earn more than $600 from a single affiliate program in a year, you should receive a 1099-NEC (US). If you operate as a sole proprietor or single-member LLC, affiliate income is subject to both income tax and self-employment tax. Track all income and eligible business deductions, and set aside 25-30% for taxes.

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Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.