How is the counter-offer calculated?

The calculator finds the break-even rent, which is the weekly amount at which your landlord nets the same income over 52 weeks whether they replace you or keep you at the lower rate. It factors in vacancy loss, reletting fees, advertising costs, and repairs. Three tiers (Conservative, Balanced, Assertive) are then calculated around that break-even point.

Can I negotiate a rent increase in Australia?

Yes. Landlords are not obligated to accept any counter-offer, but negotiation is common and landlords often prefer keeping a reliable tenant over the cost and hassle of finding a new one. The best approach is to frame your counter-offer around the landlord's financial interests, not just your own.

What does it cost a landlord to replace a tenant in Australia?

Typically $2,000–$5,000 or more, depending on location and property type. This includes vacancy loss (usually 2–3 weeks rent), a reletting fee (1–2 weeks rent charged by the agent), advertising on Domain and REA ($200–$400), and repairs or cleaning between tenancies ($300–$800+).

What is a reasonable counter-offer for a rent increase?

A reasonable counter-offer is one that still makes financial sense for the landlord. The 'Balanced' figure from this calculator represents the rent at which the landlord is exactly indifferent between replacing you or keeping you. Anything above that is a good deal for the landlord; anything below it means they'd lose money by replacing you.

How much notice does a landlord have to give for a rent increase in Australia?

Notice periods vary by state and territory. In most states it is 60 days' written notice; in some it is 30 days. This calculator focuses on the negotiation side. For specific legal requirements in your state, check your state's tenancy authority website.

Is this tool specific to any Australian state?

The calculator uses standard market cost assumptions that apply broadly across Australia. It does not account for state-specific tenancy law or rent increase caps, which vary by state. It is a negotiation support tool, not legal advice.

NSW Rent Check: What It Is, How to Use It, and What to Do Next

If you've received a rent increase in NSW, the government has a free tool that tells you what other tenants in your postcode are actually paying. It's called Rent Check. Most renters don't know it exists.

This guide explains what Rent Check does, how to use it, and more importantly, what to do once you have the results.

Quick summary

NSW Rent Check shows the median rent range for any NSW postcode
Data comes from rental bonds lodged in the last 3 months
It tells you where the market sits. It does not tell you what to do about it
If your proposed rent is above the median, you have a strong negotiation position
Pair it with a counter-offer calculator to turn the data into a specific number

What is NSW Rent Check?

NSW Rent Check is a free tool from the NSW Government that lets you look up the median rent range for properties in any NSW postcode. It was designed to help both tenants and landlords understand what the current rental market looks like in a specific area.

The data comes from rental bonds lodged with NSW Fair Trading over the last 3 months, so it reflects real, recent transactions rather than asking prices on listing sites.

How to use NSW Rent Check

Go to the NSW Rent Check page and click Start Rent Check
Enter your postcode
Select your property type (house, apartment, etc.)
Select the number of bedrooms
View your results: the tool shows the median rent range for that combination

If there aren't enough recent bonds for your specific postcode and property type, the tool may not return results. This is more common in smaller areas or for less common property types.

What do the results mean?

The tool shows the interquartile range, which is the middle 50% of rents from recent bond data. This means:

The lower end is what tenants in the cheapest 25% of comparable properties are paying
The upper end is what tenants in the most expensive 25% are paying
The median is the midpoint. Half of comparable properties are below this, half are above

The NSW Government explicitly states this is not an official rent valuation and not a recommendation. It is a market reference point.

How to use the results in a rent negotiation

Once you have the Rent Check data, you have three possible situations:

Proposed rent is above the upper end of the range: Your landlord is asking for more than 75% of comparable properties. This is strong grounds for a counter-offer and potentially a tribunal application.
Proposed rent is within the range: The increase is in line with the market. A counter-offer is still reasonable, but you'll want to frame it around the landlord's replacement costs rather than market data alone.
Proposed rent is below the range: Your landlord is actually being conservative. You still have the right to negotiate, but your leverage is lower.

Turn your Rent Check data into a counter-offer

Enter your current and proposed rent. The calculator shows the landlord's replacement cost and your counter-offer range, the number you can actually send.

Calculate my counter-offer

What Rent Check doesn't tell you

Rent Check is useful market data, but it has real limits:

It doesn't tell you what to say. Knowing the median rent doesn't give you a specific counter-offer number or negotiation script.
It doesn't factor in your landlord's costs. The strongest counter-offers are framed around the landlord's financial interests (vacancy loss, reletting fees, repairs), not just market comparison.
It only covers NSW. If you're in Victoria, Queensland, or another state, you'll need to check your state's tenancy authority for equivalent data.
It excludes studios. Studio apartments aren't included due to insufficient data.
It's backward-looking. Bond data from the last 3 months may not reflect the very latest market movements.

Using Rent Check alongside a counter-offer calculator

The most effective approach is to use both tools together:

Use NSW Rent Check to establish where your proposed rent sits relative to the market
Use a counter-offer calculator to find the break-even rent, the point at which your landlord is financially indifferent between keeping you and finding a new tenant
Frame your counter-offer around the landlord's replacement costs, and reference market data as supporting evidence

This two-part approach gives you both the market context and a specific, financially defensible number to propose.

Can you use Rent Check at a tribunal?

Yes. If you believe a rent increase is excessive, you can apply to the NSW Civil and Administrative Tribunal (NCAT) to have it reviewed. Rent Check data can be used as supporting evidence, though NCAT will consider a range of factors including property condition, amenities, and recent improvements.

You must apply to NCAT within 30 days of receiving the rent increase notice. The application is free for tenants.

Ready to calculate your counter-offer?

Once you have your Rent Check data, use this calculator to find the counter-offer range that makes financial sense for your landlord.

Open the calculator

Other Australian states

NSW Rent Check is specific to New South Wales. If you're in another state, check these equivalents:

State	Resource	Dispute body
VIC	Consumer Affairs Victoria rental report	VCAT
QLD	Residential Tenancies Authority (RTA) data	QCAT
WA	Department of Energy, Mines, Industry Regulation and Safety	Magistrates Court
SA	Consumer and Business Services SA	SACAT

* Always verify current resources with your state's tenancy authority.

The bottom line

NSW Rent Check is one of the most underused tools available to NSW renters. It takes under two minutes to run and gives you real market data to back up your negotiation.

But data alone doesn't win negotiations. A specific, financially justified counter-offer does. That's what the calculator is for.

For a full walkthrough of the negotiation process, see our guide to negotiating a rent increase in Australia.