Short answer: the easiest, biggest savings on premium pet-food brands come from autoship/subscribe discounts, store loyalty programs, manufacturer coupons/rebates, cashback apps, and buying in bulk from club stores. Below are practical tactics (what to do) plus where those discounts typically come from right now.

Top tactics (fast, actionable)

• Use autoship/subscribe programs — big first-order and recurring discounts. Example: Chewy and PetSmart both offer large first‑time Autoship/Subscribe discounts (commonly ~30–40% on the first autoship for eligible items, then ~5% recurring). Check the product page and “Autoship/Subscribe” at checkout. (forbes.com)
• Join store loyalty/membership programs. Petco’s Vital Care gives member pricing and (advertised) percentage savings on nutrition (e.g., ~10% off nutrition as a member tier perk). These programs also unlock member-only coupons and free-shipping thresholds. (petco.com)
• Watch Amazon Subscribe & Save and Amazon pet-event sales. Amazon runs “Pet Day” / event discounts and Subscribe & Save can stack (clippable coupons + S&S %), so you can see double-digit discounts on premium brands during events. (aboutamazon.com)
• Clip manufacturer coupons and sign up for brand emails/apps. Premium makers (Purina/Pro Plan, Hill’s, Royal Canin, Blue Buffalo, etc.) regularly send signup coupons, small printable coupons, and limited-time rebates—plus occasional direct rebate programs. Sign up on the brand site or app for direct coupons. (purina.com)
• Use grocery/cashback apps and coupon sites to stack savings. Ibotta, Rakuten, Fetch and others often have cash-back offers or brand-specific rebates you can submit with receipts or linked loyalty accounts; those rebates stack with store sales or manufacturer coupons. (home.ibotta.com)
• Buy big at club warehouses (Costco / Sam’s Club) for lower $/lb or try private‑label premium options (Kirkland at Costco) — often the best per-pound savings on staple premium dry food.
• Check veterinary clinics for prescription/premium-diet coupons or clinic-specific discounts (useful for prescription/therapeutic lines).

How to stack and maximize:

• Combine: store sale + autoship or subscribe first‑order discount + manufacturer coupon + cashback offer + store loyalty points. Example stack: clip an Amazon coupon for a brand, subscribe for S&S, and also have an Ibotta offer active.
• Compare true unit price (price per lb or per oz) — some “sale” large bags aren’t cheaper than competing brands when measured per lb.
• Time purchases: big seasonal sales (Prime Day, Pet Day, Black Friday/Cyber, major holiday sales) and manufacturer promos usually yield the best single-order discounts.
• Use price-tracking / deal sites (Slickdeals, DealNews) and “Today’s Deals” pages on pet retailers to find short-window markdowns and BOGO deals.

Quick checklist (before you buy)

1. Is the item autoship/subscribe-eligible? If yes, see first-order % and recurring % at checkout. (forbes.com)
2. Are there brand coupons or printable manufacturer coupons (brand site or Coupons.com)? Sign up for emails. (purina.com)
3. Any app rebates (Ibotta, Rakuten, Fetch)? Add offers before shopping or submit receipt after. (home.ibotta.com)
4. Check store loyalty perks (Petco/PetSmart) for extra % off or points. (petco.com)
5. Compare unit price at a club store (Costco) for big savings on staple bags.

If you want, I can:

• Scan current live deals for a specific brand(s) you feed (e.g., Orijen, Royal Canin, Hill’s, Blue Buffalo, Purina Pro Plan) and return the best current offers and exact links (I can pull prices and promo codes).

Which premium brand(s) should I check now?