The Complete Waste Audit Checklist for Melbourne Businesses

Audit Guide 10 min read By Sofia Todorova Updated 21 March 2026

A waste audit is the single most effective way to find out whether your business is overpaying for waste management. It does not require specialist equipment or consultants. All you need is your contract, your invoices, and a couple of hours to walk through your waste setup with fresh eyes.

We have put together this checklist based on the most common issues we find when auditing waste costs for Melbourne businesses. Work through each section methodically, and by the end you will have a clear picture of where your money is going and where it could be going instead.

Part 1: Contract and Invoice Review

Your contract and invoices are the starting point. Most businesses have not reviewed these documents since they were signed, and that is where overspend begins.

Locate your current waste management contract (check with accounts payable if you cannot find it)

Note the contract start date, end date, and any auto-renewal clauses

Record the agreed base rate per lift for each bin type and size

Check for price escalation clauses (CPI adjustments, levy pass-throughs)

Pull the last 6 months of invoices and compare actual charges to contract rates

List every line item on your invoices, including surcharges, levies, and fees

Flag any charges that do not appear in your original contract

Calculate your total monthly spend across all waste streams

If your invoices contain charges not referenced in your contract, that is an immediate red flag. Common additions include environmental levies that have increased beyond CPI, fuel surcharges, and administrative fees. Read our detailed guide on hidden fees on waste invoices for more on this.

Part 2: Bin Inventory and Sizing

Walk your premises and document every bin. Many businesses have bins they are paying for that they do not actually need, or bins that are the wrong size for their waste volume.

Count every bin on your premises (front-lift, rear-lift, skip bins, wheelie bins)

Record each bin's size (240L, 660L, 1,100L, 1.5m³, 3m³, etc.)

Note the waste stream for each bin (general waste, recycling, cardboard, organic, other)

Record the scheduled collection frequency for each bin

Check if any bins are shared with neighbouring businesses

Verify that all bins on your invoice match the bins on your premises

We regularly find businesses paying for bins that were removed months ago, or paying for collection frequencies that were changed but never updated in the billing system. Cross-referencing your physical bin count with your invoices often reveals billing errors worth hundreds of dollars per month.

Part 3: Fill Level Assessment

This is where the real savings become visible. Over the course of one week, check each bin just before its scheduled collection and record how full it is.

Check each bin's fill level before every scheduled collection for one full week

Record fill levels as a percentage (25%, 50%, 75%, 100%, overflowing)

Note any bins that are consistently less than 50% full at collection time

Note any bins that are consistently overflowing

Check if fill levels vary significantly by day of the week

If a bin is consistently less than half full when collected, you are paying for capacity you do not use. Options include downsizing the bin, reducing collection frequency, or both. A 1,100L bin collected three times a week that is always half full could be replaced with a 660L bin collected twice a week, saving 40 to 50 per cent on that line item alone.

Part 4: Waste Stream Composition

Understanding what is actually in your bins tells you whether your waste is being handled in the most cost-effective way.

Visually inspect the contents of your general waste bins (do not dig through, just look)

Estimate the percentage of recyclable material in general waste (cardboard, paper, plastics, metals)

Estimate the percentage of organic material in general waste (food scraps, garden waste)

Check recycling bins for contamination (food waste, soft plastics, non-recyclable items)

Identify whether you generate any specialist waste streams (hazardous, clinical, confidential documents)

Assess whether adding new waste streams (cardboard, organics) would reduce general waste volume enough to justify the additional bin cost

Recyclable materials in general waste bins represent a direct cost to your business. Every kilogram of cardboard sent to landfill costs you the full landfill levy ($125.08 per tonne in Victoria), whereas a dedicated cardboard recycling bin is significantly cheaper per collection. Most businesses find that 20 to 40 per cent of their general waste is recyclable material.

Part 5: Operational Assessment

Check that bins are positioned in accessible locations for collection trucks

Verify that staff know which waste goes in which bin

Check bin signage and labelling for clarity

Confirm that collection schedules align with your business operating hours

Note any missed collections in the past 3 months

Check whether your provider has charged you for collections that were missed

Review any contamination notices or penalty charges received

Part 6: Benchmarking

Request at least two competitive quotes from other waste management providers

Ensure quotes are like-for-like (same bin sizes, frequencies, waste streams)

Ask for all-inclusive pricing, not base rates only

Compare total monthly costs, not just per-lift rates

What to Do With Your Findings

Once you have worked through this checklist, you will have a detailed understanding of your waste setup, your actual costs, and the areas where savings are possible. The most common outcomes are:

Billing errors that need correcting with your current provider
Bins that can be downsized or have collection frequency reduced
Recyclable material that should be diverted from general waste
Contract terms that are due for renegotiation
Rates that are above market and can be challenged with competitive quotes

If you would prefer to have an experienced team handle this process, Bundle Waste conducts free waste audits for Melbourne businesses. We cover everything in this checklist and provide a detailed savings report, typically within five business days.