Earn 10% on every order you send to Castle Ink.
Castle Ink is a family-run shop that has been helping people escape brand-name ink prices for years. Share what you already recommend, and earn 10% of every order your audience places — with no fees, no minimums and no exclusivity.
Why partner with Castle Ink
Printer ink is one of the few products people are forced to buy again and again. That makes it an unusually good fit for affiliate income.
Customers come back
Cartridges run out. A single referral often turns into a repeat buyer, and you keep earning on their future orders inside your attribution window.
An easy story to tell
Brand-name cartridges are notoriously expensive. Our compatible and remanufactured options do the same job for a lot less — that's a recommendation your audience actually thanks you for.
A catalog that fits everyone
Ink and toner for HP, Canon, Epson, Brother and more, plus drums, maintenance parts, paper and specialty printing supplies. Whatever printer your audience owns, we probably cover it.
US-remanufactured options
We work with a supplier that remanufactures ink and toner right here in the US — a real differentiator when your audience cares about quality and sourcing.
Free tools that convert
Point people at our PrinterIQ Finder, CastleScore printer rankings and Printer Ink Price Index. Genuinely useful content that warms up a click before it ever hits a product page.
Real people behind it
Castle Ink is a family-run business, not a faceless marketplace. If your referral has a question about compatibility or a return, an actual human answers.
Who this program is for
If your audience owns a printer, you can earn with Castle Ink. These are the partners we work best with.
Creators & YouTubers
Craft, sublimation and DTF channels, home-office and productivity creators, tech reviewers — anyone who prints on camera.
Bloggers & review sites
Printer help, home office, small business and money-saving sites publishing buying guides and "best of" roundups.
Deal & coupon sites
Cashback, coupon and deal communities. We'll keep you supplied with current offers and seasonal promotions.
Offices, schools & print shops
If you already tell other businesses where to buy supplies, get paid for it — and buy your own at the same savings.
How it works
The whole program runs on Shopify Collabs, so tracking, reporting and payouts are handled for you. No spreadsheets, no invoicing.
Apply
Fill out the short application below. Tell us where you'd share Castle Ink and roughly who your audience is.
Get approved
We review applications by hand, usually within a few business days. Approved partners get a personal affiliate link and a dashboard.
Share
Drop your link in videos, posts, guides, newsletters or reviews. Request free product to test and feature on camera.
Get paid
Track clicks, orders and earnings in real time. Commissions are approved after the return window and paid out monthly.
Program terms at a glance
No fees, no minimums, no exclusivity. Here's exactly what you're signing up for.
| Commission | 10% of the product subtotal on every approved order placed through your link. |
|---|---|
| What's commissionable | Product subtotal only. Taxes, shipping and gift cards are excluded, and commission is calculated after any discounts. |
| Cookie window | 30 days. If someone clicks your link and buys within 30 days, the sale is credited to you. |
| Payouts | Monthly, through Shopify Collabs, once commissions clear our 30-day return window. |
| Free product | Approved creators can request cartridges and supplies to review, at our discretion. |
| Cost to join | Nothing. There are no fees, no sales minimums and no exclusivity requirements. |
| Not allowed | Bidding on "Castle Ink" branded search terms, coupon injection or toolbar/extension traffic, unauthorized discount codes, spam, and any placement that misrepresents our products or pricing. |
| Disclosure | Partners must disclose the affiliate relationship clearly, per FTC endorsement guidelines. |
Castle Ink may update program terms or end a partnership at any time. Full terms are provided in your Shopify Collabs agreement at approval.
Frequently asked questions
How much can I actually earn?
You earn 10% of the product subtotal on every order placed through your link. Ink and toner are repeat purchases, so partners who publish evergreen content — a printer review, a "cheapest ink for X" guide, a setup video — tend to see earnings compound month over month rather than spike once and fade.
Do I need a big following to be approved?
No. We care more about fit than follower count. A small, engaged audience of people who own printers is worth far more to us than a large general audience. Tell us where you'd share Castle Ink and we'll take a look.
How do I get my link and track sales?
Everything runs through Shopify Collabs. Once you're approved you get a personal affiliate link and a dashboard where you can see clicks, orders, commissions and payout status in real time.
When do I get paid?
Commissions clear after our 30-day return window, then pay out monthly through Shopify Collabs. You'll be able to see pending and approved earnings in your dashboard at any time.
Can I get free product to review?
Yes — approved creators can request cartridges and supplies to test and feature. Just ask through Collabs once you're in, and tell us which printer you're working with so we send the right cartridges.
Can I promote Castle Ink alongside other brands?
Absolutely. There's no exclusivity requirement. The only thing we ask is that you don't bid on our brand name in paid search and that you disclose the affiliate relationship to your audience.
What if my audience buys for a business or school?
Even better. Offices, schools and print shops buy in volume and reorder on a schedule, which makes them some of the highest-value referrals in the program.
Ready to start earning?
Applications take about two minutes. Approved partners are usually up and running within a few business days.
