How Does DHOAS Work? 5+ Must-Know Facts Before You Apply to Save $50K+ on Home Loans

If you’ve served in the ADF and want help buying a home, the Defence Home Ownership Assistance Scheme (DHOAS) could knock thousands off your mortgage. 

But it’s not automatic. There are rules, deadlines, and paperwork that can either save you money or delay everything.

This guide takes you through the important things you should know before you apply. 

From checking if you’re eligible, choosing the right lender, and making sure you don’t lose your benefit halfway through, you’ll find essential information. 

You’ll also know about how the subsidy works, what your service tier means for your loan, and how to avoid the most common mistakes people make when applying.

What is DHOAS?

Defence Home Ownership Assistance Scheme, or DHOAS, is a government initiative that helps eligible current and former Australian Defence Force (ADF) members and their families buy a home. 

Instead of giving you a cash payout, DHOAS normally chips in on your home loan interest each month. Depending on your length of service and subsidy tier, this monthly contribution can range between $495 and $1,157 (as of the 2024-25 subsidy tier limit).

If you’ve built up enough service time, you may also have the option to take up to four years’ worth of subsidy as a lump sum, which can be paid directly to your loan.

It’s also not automatic. You still have to apply for a Subsidy Certificate, meet the eligibility criteria, and get your home loan through a DHOAS-approved lender. 

But once you’re in, it can cut your repayments.

The idea behind it is pretty straightforward. The longer you’ve served, the more exclusive benefits and help you can get from the DHOAS and Defence Force home loans. 

DHOAS is one way the government helps reduce your financial burden and supports long-term homeownership for the ADF community for up to 20 years. 

How does DHOAS work?

Once you’re approved, DHOAS pays a monthly subsidy straight to your home loan lender. 

You won’t see the cash hit your bank account, but you’ll feel it in your mortgage repayments. 

It offsets the interest portion of your mortgage, reducing your monthly loan repayments. 

What you get depends on how long you’ve served, how much you’re borrowing, and which subsidy tier you fall into. 

Each tier has a cap on the loan amount that can be subsidised. If your loan goes over that cap, the excess won’t be covered by DHOAS.

Here’s how the service tiers typically break down:

• Tier 1 – minimum of 2 years of permanent service or minimum of 4 years of reserve service
• Tier 2 – minimum of 4 years of permanent service or minimum of 8 years of reserve service
• Tier 3 – minimum of 8 years of permanent service or minimum of 12 years of reserve service

To use DHOAS, you also need to go through a lender that’s approved under the scheme. 

But not every bank qualifies. 

The Defence Bank and Australian Military Bank are common picks. The National Australia Bank (NAB) has a few options, too.

That’s where working with a defence mortgage broker like Defence Finance can make things easier. The right team can offer DHOAS loans and can help you work through your options, especially if you’re not sure which tier or loan setup suits you best.

Before you do anything else, you’ll need to apply for a Subsidy Certificate through DHOAS. This confirms your eligibility and the tier you fall into.

Apply for it online. 

If you’re eligible, DHOAS will send you the following documents:

• Your Subsidy Certificate. This will not be sent to your home loan provider. So, once you’ve got it, hand it to your lender during the loan application process.
• A letter that tells you which subsidy tier you’re eligible for
• A fact sheet that breaks down the conditions of the scheme.

When the loan settles and you’re living in the home, the subsidy kicks in. You can use DHOAS for up to 20 years in total. 

Who’s eligible?

DHOAS isn’t open to everyone who’s ever worn a uniform. 

You need to have done the right type of service for the right amount of time. 

There’s also a bit of paperwork involved. But once you’re eligible, it’s worth the effort.

You’re eligible to apply if:

• You’ve served on or after 1 July 2008
• You’ve served in the ADF for at least two years as a permanent member
• You’re a reservist who’s done qualifying service under ADF rules
• You’ve left the ADF but still meet the service and discharge conditions
• You’re currently serving and want to use DHOAS to buy or refinance a home
• You’ve been medically or administratively discharged (some cases still qualify)
• Your service falls under MRCA, SRCA, or DRCA 

How long you’ve served decides your tier, and your tier affects how much help you’ll get. 

If you’ve swapped between permanent and reserve service, or had gaps in service, that can shift where you land. 

It’s a good idea to check your full record before applying to avoid surprises, so you’ll know exactly where you stand.

How does the subsidy tier work?

The DHOAS subsidy is a monthly payment that helps cover the interest on your home loan. 

As mentioned above, you don’t receive it directly. 

The money goes straight to your lender and shows up as a credit on your mortgage account. 

That means lower repayments for you, without changing your loan structure.

Also, the amount you get isn’t random. It’s based on three key things:

• Your service tier (Tier 1, 2, or 3)
• The current subsidy interest rate
• How much of your loan sits within your tier’s subsidised cap

The DHOAS subsidy tiers change every month. 

You can always check the DHOAS site for the latest updates. 

This keeps things flexible, so you’re not locked into a fixed rate. 

The subsidy can shift based on changes in the tier structure and interest rates.

The government sets the subsidy rate by averaging the standard variable interest rates from a few major banks. 

That rate usually changes quarterly.

The longer you’ve served, the higher your tier, and the bigger your slice of that average rate.

For example, let’s say you’re in tier 3, and the cap is $827,380. 

• If your loan is within that cap, you’ll receive the full monthly subsidy for tier 3.
• If your loan is higher, like $900,000, only the portion up to $827,380 gets the benefit. Anything above that doesn’t qualify or get any support.

As mentioned above, subsidy payments are made monthly and continue for up to 20 years total. 

You don’t need to use all 20 years in one go. You can pause the subsidy if you rent the property or refinance to a non-DHOAS lender.

When you move back in or switch back to an approved lender, you can pick up where you left off, as long as you’re still eligible.

Just keep in mind that if you refinance or upgrade your property with a new loan, the subsidy doesn’t automatically carry over. 

The same rules apply if you switch banks. 

Your new loan has to meet DHOAS conditions, or the subsidy stops.

It’s not a one-size-fits-all payment, but when set up right, the DHOAS subsidy can shave thousands off your loan over time.

What are the loan tiers?

Your DHOAS tier is based on how long you’ve served in the ADF, either in permanent service or as a reservist. 

Each tier comes with a set loan cap and maximum monthly subsidy. 

The longer your service, the more support you can get through a higher tier.

Here’s how it breaks down:

• Tier 1 applies if you’ve served at least 2 years of permanent service or 4 years in the reserves. You’ll get the lowest loan cap and subsidy amount, but it still helps bring down your repayments, especially if you’re just getting into the property market.
• Tier 2 is for those with a minimum of 4 years permanent or 8 years reserve service. It gives you a higher loan cap and a better subsidy rate than Tier 1. This means more of your loan is covered, and your repayments go down a bit more.
• Tier 3 is for members who’ve served 8 years permanent or 12 years in the reserves. It comes with the highest subsidised loan cap and the maximum monthly subsidy available through DHOAS. It offers the biggest financial benefit across all tiers.
  

The loan cap is the upper limit of your home loan that qualifies for the DHOAS subsidy.

If your loan goes beyond that cap, only the portion up to the limit gets the benefit. 

The rest of your loan won’t be subsidised.

That’s why it’s important to weigh the pros and cons of DHOAS to make sure it’s actually worth your time. 

Also, to make the most of DHOAS, try to keep your loan within the cap for your tier. 

That way, every dollar of your mortgage benefits from the subsidy. 

If your loan goes over the cap, only part of your mortgage gets the advantage.

If you’re not sure where you sit, check your total service record, including any eligible reserve time.

Common mistakes to avoid when applying for DHOAS

Applying for DHOAS isn’t hard. But a few slip-ups can delay things or cost you the benefit.

Here are some of the most common mistakes people make and how to avoid them.

Mistake # 1 — Using a lender that’s not DHOAS-approved

Not all banks or home loan products qualify for DHOAS. 

You need to pick from a list of approved lenders and use a loan that fits within the scheme.

Even if your loan is approved, you won’t get the subsidy if the lender isn’t on the approved list.

That’s why you must check the list of approved lenders before choosing a home loan. 

If you’re working with a broker, confirm that they know the DHOAS rules and which lenders offer suitable products.

Mistake # 2 — Not meeting the occupancy requirement

To receive the subsidy, you have to live in the home. That’s part of the deal. 

If you rent it out straight away or don’t move in within the set time, the subsidy can stop.

Remember that the scheme is designed for you to live in the property. 

If you don’t, you lose the benefit until you move back in.

Plan to live in the home for at least 12 months after buying. 

If your plans change, you may need to pause the subsidy and reactivate it later.

Mistake # 3 — Letting your subsidy entitlement run out

Your subsidy entitlement isn’t unlimited. 

It’s tied to how long you’ve served and which tier you’re on. 

Some people assume they can keep using it for years without checking how much time they have left.

If your entitlement runs out and you’re still expecting the subsidy, you’ll be left covering the full repayment amount.

So, keep track of your remaining entitlement. 

You can pause it if you’re not living in the home or not using the benefit, which helps stretch it over a longer period.

Make DHOAS work harder for you

Owning a home after serving in the ADF is more possible than many think. 

DHOAS is a tool that can save you thousands over the life of your loan. 

But like any benefit, it only works if you understand how to use it.

Too often, people jump in too fast or assume someone will guide them through the process. 

The truth is, getting the most out of DHOAS takes a bit of upfront effort. 

It means knowing your tier, working within your loan cap, and choosing a lender who actually knows the scheme.

You’ve already done the hard part, which is serving the country. 

Don’t leave money sitting on the table now. 

Look into your options, ask the right questions, and use this scheme to your full advantage.

That’s making your service count twice.