Setting affiliate commissions on physical products means working with a much tighter budget than digital sellers get. A 38% gross margin can shrink to single digits once you subtract shipping, card fees, and the commission itself. This post runs the real math on a real product, then covers two ways to structure your rates, tiered and category-based, so you can pay affiliates competitively without giving away your profit.
Most business owners setting up an affiliate program for a physical product start with a percentage that sounds fair, 10% or 15%, and work backward from there. That’s exactly backward. Physical goods carry costs digital products don’t: manufacturing or wholesale cost, packaging, shipping, returns, and payment processing on top of the commission. Skip the math and you can end up paying an affiliate more than you actually kept on the sale.
I’ve written before about picking a good affiliate commission rate across product types, and physical goods land in the 5% to 15% range for a reason. This post goes narrower. It’s for the situation where even the low end of that range still hurts, and it covers the two commission structures that fix it without you racing to the bottom on rate.
What’s a normal affiliate commission rate for physical products?
Somewhere between 5% and 15% is typical for physical products, well below the 30-50% you’ll see on digital courses or the 20-40% common on SaaS subscriptions. The gap isn’t arbitrary. A digital course has no cost of goods, no box, and no truck. A physical product has all three before an affiliate ever gets paid.
I’ve managed programs for hard-goods brands where 8% to 12% was the competitive rate, not the 30%-plus you’d see in the info-product space. Retailers and DTC brands selling anything from kitchen tools to apparel tend to cluster in that same band, because their gross margins usually sit somewhere between 30% and 55% before affiliate cost even enters the picture.
That range works fine as a starting point. It falls apart once you actually run the numbers on a specific product, which is what most people skip. If you sell through an online store, it also helps to know how affiliate marketing works for e-commerce brands before you set a rate, since the traffic and conversion patterns are different from a course or software funnel.
Run the math: what’s left after a 10% commission on a 38% margin product
Take a $48 stainless steel french press. It costs $29.76 to make and source, which leaves a gross margin of $18.24, or 38% of the sale price. That’s a healthy margin by physical product standards. Here’s what happens to it.
Pay a flat 10% commission and you hand over $4.80. Add shipping. Most direct-to-consumer brands land somewhere between $6 and $9 per order once you count the box, packaging materials, and postage, so call it $8 for this product. Subtract that too, and you’re at $18.24 minus $4.80 minus $8.00, which leaves $5.44.
Now factor in payment processing. Standard card processing runs about 2.9% plus $0.30 per transaction, which on a $48 sale is roughly $1.69. Subtract that and you’re left with $3.75.
You started with 38 cents of gross margin on every dollar of that sale. After commission, shipping, and card fees, you’re keeping about 8 cents. That’s before customer support, returns, warehouse rent, or any actual profit. A commission rate that looked reasonable on paper just quietly ate 80% of your margin.
Why shipping costs blindside your affiliate commission math
Shipping is the cost most people forget when they set a commission rate, because it doesn’t show up on the price tag the way commission does. It’s still real money leaving the business on every single order.
Free shipping has become the default expectation for online shoppers, which means most physical product brands absorb that $6 to $9 cost themselves rather than passing it to the customer. If you calculate your commission off the sale price without subtracting shipping first, you’re paying an affiliate a percentage of revenue you never actually got to keep.
This matters more the lower your average order value runs. On a $200 order, an $8 shipping cost is a rounding error. On a $48 order, it’s close to a fifth of the entire sale. If you run your store on Shopify or WooCommerce, both platforms show your fulfillment costs per order in reporting. Pull those numbers before you set a rate instead of guessing, and if you haven’t set up the program itself yet, setting up an affiliate program on Shopify is a reasonable place to start.
How to build a tiered commission structure that protects your margin
A tiered structure lets your best affiliates earn more without raising the base rate that applies to every sale, including the low-effort traffic you’d probably get anyway.
Here’s a version that works for a thin-margin physical product: 7% for affiliates driving under $2,000 a month in referred sales, 10% for $2,000 to $7,500, and 12% above $7,500. Most of your affiliate base sits in that bottom tier and never touches your margin the way a flat 12% program would. Your top handful of partners, the ones actually worth the extra percentage points, earn the higher rate because they’ve proven the volume.
That structure also gives you a real reason to recruit and promote affiliates instead of just setting one number and hoping. If you want the mechanics of running tiers, how to communicate them, and how to avoid the trap of tiers that never move anyone, I laid out the full version in how to structure your program’s commission tiers and rules.
A tiered rate only works if you actually track which affiliates hit which threshold and adjust their payouts on time. My full breakdown of how to use tiered affiliate commissions to motivate your best affiliates covers the thresholds, the math, and how to announce a tier bump so it actually motivates someone instead of arriving as a surprise line on a payment.
How to use category-based commissions when your margins vary by product
If your store sells more than one type of product, a single flat commission rate is almost always wrong for at least half your catalog. Say that same brand also sells a $16 replacement filter for the french press. It costs about $4 to produce, for a margin of $12, or 75%.
Pay a flat 10% on both products and you’re leaving real money on the table on the filter, which could easily support a much higher rate, while still squeezing the press too hard. A category-based structure fixes both problems: 6% on the french press itself, where margin is 38% and every point of commission matters, and 18% on filters and accessories, where the margin gives you room to be aggressive.
This is exactly the kind of setup that requires software built to handle it. Most basic affiliate plugins only support one flat rate for the whole store, which forces you into the same math error every time.
Running different rates by SKU or product category is where most affiliate software falls apart. AffiliateHQ was built by someone who’s run physical and digital programs at every scale, and it handles category and product-level commission rules without the workarounds most platforms force you into.
Better ways to compete than raising your commission percentage
If you’re losing affiliates to a competitor paying a higher rate, raising your percentage is the most expensive fix available, and on a thin-margin product it might not even be possible without selling at a loss. A few options that don’t require moving the base rate.
Flat per-sale bonuses for volume. Instead of paying 15% across the board, pay 8% plus a $2 bonus for every unit sold once an affiliate crosses 25 units in a month. That rewards the behavior you actually want without inflating the rate on every sale below the threshold.
Free shipping codes exclusive to an affiliate’s audience. You’re already absorbing the shipping cost on most orders anyway, so turning it into a promotional angle for a specific partner costs you nothing extra and gives them something a flat commission bump doesn’t: a reason for their audience to buy today.
Bundle offers that raise average order value. A $48 product with a $16 accessory bundled at $58 lifts your total margin dollars per transaction even at a lower blended commission rate, and it’s an easier sell for an affiliate than pushing a single low-ticket item.
Getting the rate wrong in either direction, too low to attract anyone or high enough to erase your margin, is one of the most common ways new programs stall out. The Top 20 Affiliate Program Mistakes report breaks down this one along with 19 others that nearly ended Matt’s own $12.6 million program, and how to fix each one.
How to calculate your own break-even commission rate
Run these four steps on your actual product instead of guessing at a percentage.
Step 1: Price minus cost of goods sold equals your gross margin, in dollars and as a percentage. On the french press, that’s $48 minus $29.76, or $18.24 and 38%.
Step 2: Subtract your average landed shipping cost, meaning the box, packaging, and postage combined, not just the postage sticker. That gets you a shipping-adjusted margin. For most small parcels, this runs $6 to $9.
Step 3: Subtract payment processing, roughly 2.9% of the sale price plus $0.30. This is the number people forget most often, and it’s real on every single transaction.
Step 4: Decide the minimum dollar amount you need to keep per sale to cover customer support, a returns reserve, and actual profit. Whatever’s left after that is your commission ceiling. Divide it by the sale price to get your maximum percentage.
This won’t match a generic industry benchmark, and it shouldn’t. It matches your product, your fulfillment costs, and your margin. Once you know that ceiling, you can also measure whether the whole program is worth running by tracking the average ROI of an affiliate program against what you’d spend acquiring the same customer through ads.
If you’d rather run these numbers with someone who’s done it for programs scaling from $0 to $325 million a year, Your Affiliate Launch Coach offers a free 20-minute call to review your current setup and get a specific action plan for your next 30 to 60 days.
What to do next
Start with the four-step math above on your best-selling product, not a guess at what feels competitive. Subtract cost of goods, shipping, and payment processing before you land on a commission percentage, because skipping any one of those three is how a “reasonable” rate quietly turns into a loss.
If your catalog has products with different margins, stop using one flat rate. Set a lower percentage on your thin-margin core products and a higher one on accessories and consumables where the margin can support it.
Once your base rate is set, build a tier on top of it rather than raising the base for everyone. That protects your margin on your average affiliate while still giving your best partners a reason to push harder.
