Grocery price index — what rose and fell this September 2026
The biggest changes in regular (non-special) prices across everyday groceries at Woolworths and ALDI, from the prices we track.
· Edited on
Prices are correct as of 16 September 2026 and change over time — check the shop before you buy.
Biggest regular-price rises
Regular shelf prices that went up between 17 August 2026 and 16 September 2026.
Biggest regular-price falls
Regular shelf prices that came down between 17 August 2026 and 16 September 2026 — lasting price cuts, not specials.
How we measured this
We compared each product's regular shelf price on 17 August 2026 with its regular price on 16 September 2026. On a day a product was on special, its regular price is the shop's own advertised "was" price. A change only counts if it lasted: the starting price had held for at least 28 days, and a new price held for at least 21 days — so a short promotion without a "was" price isn't mistaken for a price change. Prices are Woolworths and ALDI online prices for the eastern states.
The basket is everyday groceries — milk, bread, meat, pantry staples and the like. Fresh fruit and vegetables are left out, because their prices move with the seasons and their specials aren't always marked. Coles isn't included: our Coles price history isn't yet complete enough to measure a month's change reliably. IGA isn't included because each IGA sets its own prices.
The bottom line
Of the 3,180 everyday products we could compare, 65 (2.0%) had a lasting rise in regular price over the period, 115 (3.6%) a lasting fall, and 3,000 (94.3%) ended where they started.
Mai Pantry tracks prices like these for the items on your list, then builds the cheapest trip across Coles, Woolworths, ALDI, IGA and more. It's free.