How to Cut Grocery Costs in Australia: A System That Actually Works
A practical step-by-step system for cutting grocery costs in Australia — meal planning, price comparison, smarter shopping and less waste.
Cutting grocery costs in Australia comes down to a repeatable weekly routine: check what you already have, plan meals around that week's specials, compare your basket across stores, and default to home brands on staples. Store choice carries the most weight — CHOICE's March 2026 survey priced an identical 20-item basket at $72.41 at Aldi, $98.98 at Woolworths and $100.04 at Coles.
Most people know they should be spending less. The problem is they don't have a reliable system to make it happen consistently. This guide isn't a list of one-off tricks — it's a weekly routine you can build and repeat.
Step 1: Check Your Pantry Before You Plan
Before you think about what to cook, open the fridge, check the freezer, and scan the pantry. Build this week's meals around what's already there. You'll cut waste, avoid buying duplicates, and reduce your bill from the first shop.
A lot of food waste happens because people buy the same items on autopilot without checking whether they already have them. A quick five-minute scan before writing your list fixes this.
Step 2: Plan Meals Around What's on Special
Once you know what you've got, browse the weekly specials at Coles and Woolworths — both update every Wednesday. Build your meals around what's discounted that week rather than deciding what you want to eat and then paying whatever it costs.
If chicken thighs are half price, plan a roast. If mince is down, make bolognese or freeze a batch for later. If capsicums are cheap, do stir-fries two nights running. This single habit shifts you from reactive to strategic. Our guides to the Coles weekly specials and Woolworths weekly specials break down how each cycle works.
Step 3: Compare Prices Across Stores
Most Australians shop at one supermarket by default and never question whether they're paying the best price. The gap is real: CHOICE's March 2026 basket survey put the same 20 items at $72.41 at Aldi, $98.98 at Woolworths and $100.04 at Coles. Aldi's regular prices run roughly 15–25% below Coles and Woolworths on comparable staples — but Coles and Woolworths often run half-price deals that undercut Aldi on specific products that week.
The honest answer to "which supermarket is cheapest?" is: it depends on what's on your list and what's on special. Grocero lets you compare prices across Coles, Woolworths, and other Australian supermarkets in one place, so you can see where your whole basket is cheapest without visiting multiple websites.
Step 4: Write a Proper Shopping List and Stick to It
A real list — not a mental one — keeps you on budget. Group items by aisle, include the quantities you need, and don't deviate. Impulse purchases are the biggest budget leak most people have, and they're almost entirely eliminated by shopping with a list on a full stomach.
Online grocery shopping helps here too. You see fewer impulse temptations, and the running total at checkout keeps you honest. The trade-off is delivery fees, but for many people the savings from sticking to a list outweigh the cost.
Step 5: Use Generic Brands for Staples
For flour, sugar, rice, pasta, tinned tomatoes, oats, and most cleaning products, supermarket own-brands are as good as name brands at a fraction of the price. There's very little reason to pay more for these unless you've tried the generic and genuinely don't like it.
Check the unit price rather than the shelf price when you compare — it's the only way to tell whether the bigger pack or the home brand is actually better value. Aldi's entire model is built around own-brand, and its prices reflect it. Coles and Woolworths both have solid own-brand ranges too (Coles Brand, Woolworths Essentials) that save meaningfully on a full shop.
Step 6: Reduce Food Waste
The average Australian household throws out $1,036 worth of food a year (NSW EPA Love Food Hate Waste research). That's money spent, not eaten. Some practical ways to cut this:
- Freeze meat before its use-by date rather than letting it go bad
- Batch-cook grains, soups, and sauces so nothing goes to waste mid-week
- Learn the difference between "use by" (safety) and "best before" (quality) — many foods are fine after best before
- Keep older items at the front of the fridge so they get used first
When Specials Update and Where to Find Them
Coles and Woolworths both update their weekly specials every Wednesday. Aldi's Special Buys rotate on Wednesday and Saturday. The best time to plan your shop is Wednesday morning when the new deals drop.
You can browse specials directly in Grocero — open the Specials tab and filter by store to see current deals across Coles, Woolworths, and Aldi without switching between apps.
How Much Can You Actually Save?
Most households that apply this consistently cut 15–25% off their weekly bill. On a $250 weekly shop that's roughly $37–62 a week, or $1,900–3,200 a year. The savings come mainly from:
- Eliminating impulse buys
- Buying meat and staples only when on special
- Cutting food waste
- Switching some name brands to generics
The system doesn't require visiting multiple stores or spending hours on planning. Once the habit is established, the weekly routine takes 20–30 minutes.
Frequently Asked Questions
Which supermarket is cheapest in Australia?
There's no single answer. Aldi has the lowest everyday prices on most staples — CHOICE's March 2026 basket came in at $72.41 versus $98.98 at Woolworths and $100.04 at Coles — but Coles and Woolworths run weekly half-price deals that often beat Aldi on specific items. The smart approach is to buy Aldi staples as your base and add in specials from Coles or Woolworths where they represent genuine savings. See our full Aldi vs Coles vs Woolworths price comparison, or use Grocero to compare your specific list across stores.
Does switching to generics really make a difference?
Yes, significantly. For staples like rice, pasta, tinned goods, and cleaning products, the quality difference is minimal and the price difference is substantial — often 30–50% cheaper. Start with one or two items, and add more as you find ones you're happy with.
Is it worth driving to multiple stores?
Only if the total saving justifies the time and fuel cost. For most households, the best approach is one primary store (usually Aldi for the base shop) topped up with targeted specials from Coles or Woolworths. Grocero can show you whether a multi-store trip is worth it for your list.
How do I stop impulse buying in-store?
Shop with a list, eat before you go, and stick to the aisles you need. End caps and checkout areas are specifically designed to trigger unplanned purchases — knowing this makes it easier to walk past them.