A physical product affiliate program pays commissions out of what’s left after cost of goods, shipping, and returns, not out of the full sale price the way a digital product can. Get that math wrong and you’ll either underpay affiliates who leave for a better offer, or overpay and quietly bleed margin every month the program runs.
I’ve built affiliate programs for software companies, course creators, and physical product brands, and the physical product programs are the ones that punish sloppy math the fastest. A course has no cost of goods. A $47 ebook costs nothing to reproduce. A t-shirt costs you money to make, money to ship, and money back when the customer sends it back a month later. Every one of those costs comes out before you even get to the commission line.
None of that means physical product programs don’t work. Some of the most durable affiliate relationships I’ve seen run on physical goods, because a reviewer who likes a product will keep sending traffic for years without a single email reminder. You have to build the program around the constraints a physical product creates instead of copying a commission structure built for software.
What makes a physical-product affiliate program different
Three costs sit between your sale price and your commission budget on a physical product: cost of goods, shipping, and returns. A SaaS company can pay 30% of a subscription because there’s almost nothing standing between the sale and the profit. You can’t. If a $60 product costs you $22 to make and $6 to ship, you’re already down $28 before you’ve paid a cent in commission or covered payment processing.
Returns make this worse. Online return rates run close to 20% across ecommerce broadly, and apparel and footwear often land in the 25% to 40% range, well above categories like electronics or beauty. Every one of those returned orders needs its commission reversed, or you’re paying affiliates for sales that no longer exist. How Affiliate Marketing Works for E-Commerce Brands covers the broader case for why affiliate marketing suits online stores in the first place. This post is about building the program once you’ve decided to do it.
If you haven’t nailed down the overall shape of your program yet, commission tiers, partner types, and the rules that govern them, start with How To Structure An Affiliate Program. It walks through the four structural decisions that make everything downstream easier, including the commission math this post digs into for physical products specifically.
How to set a commission that survives cost of goods and shipping
Start from your margin, not from what you wish you could pay. Work out what’s left after cost of goods, shipping, and payment processing, then decide what share of that remaining margin you can hand to an affiliate and still come out ahead. For physical products, a commission somewhere between 5% and 15% of the sale price is typical. That’s a wide gap from the 30% to 50% you’ll see on digital products, and the difference is entirely cost of goods.
Here’s the math on an $80 product. Cost of goods runs $28 (35%), fulfillment and shipping run $7 (about 9%), and payment processing takes another $2.40 (3%). That leaves $42.60, or roughly 53% of the sale price, before you’ve paid anyone a commission. Pay a 10% commission ($8) out of that, and you’re still keeping $34.60, about 43% of the sale, after paying the affiliate who brought you the customer. That’s a program that survives contact with real orders instead of collapsing the first time you look at your margin report.
Check where you land against what a good affiliate commission rate looks like across product types before you commit to a number. A commission that’s competitive in your specific category will attract better affiliates than one that’s generous on paper. A 12% rate on a low-margin electronics accessory can beat a 20% rate on an oversaturated supplement category, because affiliates compare payout dollars, not the percentage alone.
How to handle returns and the reversals they trigger
A sale isn’t final until the return window closes, and neither is the commission attached to it. If your program pays out the moment an order comes in instead of waiting for the return window to close, you’re funding commissions on orders that haven’t stuck yet. Run a $1M-a-year store with a 10% commission and a 20% return rate, and paying out immediately means you’re sending real dollars out the door on roughly $200,000 of orders that end up coming back. Apparel stores clear that threshold even faster, since apparel returns often run 25% to 40%.
The standard fix is a holding period. Most affiliate networks reverse commissions within a 30 to 60 day window, and that window should line up with your own return policy rather than run shorter than it. If customers have 30 days to return a product, hold the commission for at least that long before it’s payable. When the return does happen, the commission comes off automatically. It was never earned in the first place.
Your reversal policy needs to live in your written terms, not only in your head, or you’ll spend real time arguing about it with affiliates who push back. The Affiliate Terms Wizard builds a complete terms and conditions document, including a clear reversal clause, in about ten minutes instead of the days it takes to get a lawyer to draft one from scratch.
How to connect the program to your store and checkout
Your affiliate software needs to know two things from your store: when an order happens, and when it stops being an order. Both of those events should fire as webhooks. An order-created webhook logs the sale and attributes it to the right affiliate the moment checkout completes. An order-refunded or order-cancelled webhook reverses that commission automatically instead of leaving someone on your team to catch it by hand every month.
If you’re on Shopify, the setup runs through an app since Shopify doesn’t build in affiliate tracking natively. If you’re on WooCommerce, you’re choosing a plugin instead, with the same webhook logic underneath. Either way, ask specifically whether the software supports per-product commission rates before you commit. A single flat commission across your whole catalog ignores the fact that a $12 accessory and a $400 flagship item carry completely different margins, and paying the same percentage on both means one of them is overpaid.
This is exactly the gap I built AffiliateHQ to close. I’ve run affiliate programs for physical product brands for over 20 years, and every piece of software I tried made me chase reversals by hand instead of handling them automatically. AffiliateHQ ties directly into your store so a return closes the loop on its own, with per-product commission rates built in from the start.
Who to recruit: reviewers, content creators, and deal sites
Reviewers are the backbone of most physical product programs. Someone who publishes an honest comparison of products in your category sends traffic that’s already sold on the category, not on you specifically, which is a much easier sale than cold traffic. Content creators on YouTube and Instagram do something similar with unboxings, demos, and gift guides, and they tend to keep producing content long after the first commission check because it’s part of their regular publishing schedule, not a one-time favor. Immi, the ramen brand, drove more than $200,000 in affiliate sales through creators on Shopify Collabs, and that kind of result usually comes from a handful of committed creators rather than a large roster of casual sign-ups.
Deal sites and coupon sites are a different conversation. They can move real volume, but they typically show up at the last click before checkout, which means they often take credit for sales another affiliate influenced earlier in the buying journey. Coupon sites and loyalty extensions are especially good at capturing that last click, since they insert themselves right at checkout with a discount code. Before you approve one, decide whether you’re comfortable with that trade, and check whether to allow coupon sites in your affiliate program for the fuller list of tradeoffs. A lower commission tier on code-driven sales is a common middle ground if you want deal-site volume without paying full commission for traffic that would likely have converted anyway.
Recruiting reviewers and content creators for a physical product brand looks a lot like recruiting for any other program. The outreach leads with product fit instead of commission rate. Your First 100 Affiliates is a free report on how I recruited 604 affiliates and built a $1.1M-a-month program in eighteen months, including the actual email templates I used to get people to say yes.
How to guard against fraud
Self-referral is the most common problem on a physical product program. An affiliate buys through their own link, collects the commission as a personal discount, then returns the product once the commission has cleared. If your reversal window matches your return window, as it should, this stops paying off, because the return pulls the commission back before it’s ever released.
Watch for a spike in orders tied to a single affiliate that’s followed by a matching spike in returns from the same orders a few weeks later. That pattern is a much stronger fraud signal than order volume alone, and it’s exactly the kind of thing that’s easy to miss if you’re not reviewing your affiliate reports on a set schedule. Coupon leakage is the other common problem: a discount code meant for one approved affiliate ends up posted on a deal forum or a leaked-codes site, and suddenly you’re paying commission to someone who never referred the customer. Affiliate fraud prevention tools can automate the review for both patterns so you’re not relying on catching it by eye once a quarter, and how you structure your payout schedule also matters here, since a longer gap between an order and a payout gives fraud more time to surface before money leaves your account.
The first decisions to make
Before you recruit a single affiliate, get three things settled. Run the commission math against your actual cost of goods and shipping, not a round number you picked because it sounded generous. Set a reversal window that matches your return policy exactly, so you’re never paying commission on an order that might still come back. And confirm your software can fire order and refund webhooks automatically, because catching reversals by hand is the fastest way to lose track of what your program is costing you.
Get those three right and the rest of the program, recruiting, content, and growth, gets a lot easier to run.
