TL;DR
- Unit trusts suit co-investors who need fixed ownership shares for clarity and clean exits, while discretionary trusts suit family investing where flexible income distribution and stronger asset protection matter more.
- Lenders are generally more comfortable with discretionary trusts, and unit trust applications often involve assessing each unit holder individually — sometimes with joint and several guarantees that expose each investor beyond their pro-rata share.
- Both structures trap negative-gearing losses inside the trust rather than offsetting salary, which is why personal-name ownership usually produces a better outcome for a first negatively geared investment.
- Setup and annual compliance costs need a clear strategic purpose — family tax flexibility, defined co-investor shares, or genuine asset protection — to justify the complexity.
For Australian teachers who have moved past the first investment property and are thinking seriously about structure, the trust question usually narrows to two options: a discretionary trust or a unit trust. Both can own property, both can borrow, and both have a legitimate place in investment strategies. They also work in fundamentally different ways, and choosing between them is not a matter of preference — it is a matter of matching the structure to who is actually investing and what the strategy is trying to achieve.
The distinction matters more than it used to. With higher marginal tax rates on dual-income professional households, rising property prices making co-investment with friends or siblings more common, and lenders taking a sharper look at trust documentation, getting the structure right before settlement saves meaningful time, cost, and frustration. Getting it wrong can mean trapped losses, inflexible ownership, or a loan application that stalls because the trust deed does not do what the lender needs.
This article explains how unit trusts and discretionary trust loans actually differ for Australian teacher investors, how lenders assess each structure, what the tax and control implications look like in practice, and how to decide which is the right fit for your specific situation. The goal is to turn what is often presented as a purely tax question into a clearer investment and lending decision.
The Quick Difference Between Unit Trust and Discretionary Trust Loans
At the simplest level, the two trust types divide ownership and control differently, and that difference drives everything that follows.
A unit trust splits beneficial ownership into fixed units, similar in concept to shares in a company. Each unit holder owns a defined percentage of the trust’s assets and receives a corresponding share of income and capital. Distributions are not discretionary — they follow the ownership split.
A discretionary trust, by contrast, has no fixed entitlements. The trustee decides each year how income and capital are distributed among a defined class of beneficiaries, typically family members. Beneficiaries do not own a set share of the trust — they are eligible to receive distributions at the trustee’s discretion.
That single structural difference drives almost every other consideration. Unit trusts suit investors who want certainty about their shares of ownership. Discretionary trusts suit investors who want flexibility in how income is distributed to different household members each year. The rest of the decision flows from this core choice.
What Each Trust Structure Means in Property Lending
Before comparing when each fits, it helps to understand how each actually works when a property is being purchased and a loan is being arranged.
Who owns the property?
In both structures, the trustee legally owns the property on behalf of the trust. The title is recorded in the trustee’s name, usually with a notation that the property is held on trust. In a discretionary trust, the beneficial ownership sits across a defined class of family members. In a unit trust, the beneficial ownership is held by the unit holders in proportion to their units.
Who borrows and who guarantees
The trustee borrows the funds on behalf of the trust in both cases. Lenders almost always require personal guarantees from the individuals behind the structure. In a discretionary trust, this is typically the trustee directors or individual trustees. In a unit trust, lenders often require guarantees from each unit holder, particularly where the units are held in personal names, and the unit holders are the economic owners of the loan. The implication is important: the trust separates the asset on title, but it does not separate the individuals from the loan obligation.
Corporate trustee vs individual trustees
Either trust type can use an individual trustee or a corporate trustee — a company whose sole purpose is to act as trustee. For property lending with a longer horizon, a corporate trustee is often preferred because it adds a layer of limited liability and is generally viewed more favourably by lenders. The trade-off is additional setup costs and annual Australian Securities and Investments Commission (ASIC) fees.
The role of the trust deed
In both structures, the trust deed is the foundational document. It defines who the parties are, what the trustee can and cannot do, and — critically for property lending — whether the trustee has the power to borrow, grant security, and accept guarantee obligations. Deeds drafted for a different purpose, or older deeds, may need amendment before a loan can proceed. A deed review before offers are made on a property is far cheaper than discovering an issue mid-approval.
When a Discretionary Trust Usually Fits Teacher Investors
Discretionary trusts are more common than unit trusts for residential property investment, and the reasons reflect how most teacher households actually invest.
Family investing
Where the beneficiaries are family members — spouses, children, parents — a discretionary trust is the natural choice. The flexibility to adjust distributions each year according to the family’s tax position is one of the core reasons the structure exists. For dual-income households where one partner’s marginal rate is meaningfully higher than the other’s, this flexibility can deliver cumulative tax benefits over a long investment horizon.
Long-term portfolio strategies
Discretionary trusts suit investors who plan to hold property over many years and potentially add more over time. The structure is designed to accommodate changing circumstances — different distribution decisions in different years, evolving family needs, and the addition of further investments within the same framework. For teachers with a genuine multi-property plan, this flexibility is useful.
Broader family wealth planning
Assets held in a discretionary trust do not form part of an individual’s personal estate in the same way, which can simplify how assets pass between generations. For teachers thinking about how to position wealth for children or extended family over the long term, this feature can be a deliberate part of the strategy.
Stronger asset protection
Because no single beneficiary has a fixed entitlement, it can be more difficult for personal creditors of any one beneficiary to reach the trust’s assets. The protection is not absolute, and personal guarantees on the loan remain a genuine exposure, but the discretionary structure is typically seen as providing stronger asset protection than a unit trust.
When a Unit Trust Usually Fits Teacher Investors
Unit trusts solve a different problem. They suit investors who need clarity and certainty about ownership shares, which is often the case when the investors are not a single family.
Co-investing with unrelated parties
The most common reason teacher investors use a unit trust is co-investment with siblings, friends, or colleagues. Fixed unit ownership makes each investor’s share unambiguous. If two teachers buy a $700,000 investment property together and each holds 50 per cent of the units, each is entitled to 50 per cent of the income and any capital gain. There is no trustee discretion involved — the split is locked in by the unit holding.
Defined ownership for exit and succession
Fixed units also make exits cleaner. If one investor wants to sell their interest, the unit holding is a clearly defined share that can be bought out or transferred. Discretionary trusts do not offer this clarity, which is why unrelated co-investors rarely choose them — the absence of fixed entitlement makes it harder to manage changing circumstances fairly.
Business-like structures
Some teacher investors use unit trusts alongside other business or investment structures, including situations where a self-managed superannuation fund (SMSF) holds units in the trust. These more sophisticated structures are specialist territory and sit outside the scope of a typical first-investor discussion, but they are one of the recognised uses of unit trusts.
How Lenders Assess Each Structure
This is the part most teacher investors underestimate. The legal and tax differences between the two trust types are well documented; the lending differences are less often discussed but just as consequential.
Lender appetite
Because trust lending is more specialised than standard home loans, it can help to understand how lenders approach these applications before choosing a structure. For teachers considering whether a discretionary trust is the right fit, exploring home loan options for buying through a trust can give you a clearer picture of lender requirements, guarantee structures, and how serviceability is assessed in practice.
Most Australian lenders that offer trust loans are more comfortable with discretionary family trusts than with unit trusts. Discretionary trusts are the more common residential property investment vehicle, and lenders have a mature policy around them. Unit trusts are less common in residential property lending, and the lender panel willing to consider them is smaller again. Hybrid trusts — structures combining features of both — narrow the panel further and are generally avoided unless there is a specific reason to use one.
Trust deed review
Both structures require the lender to review the trust deed for clauses that support the trustee’s power to borrow, grant security, and accept guarantees. Unit trust deeds also need to be clear on how units are issued, transferred, and redeemed, which affects how the lender views beneficial ownership. Deeds with unusual clauses around unit rights or trustee powers can delay approval or require amendment.
Serviceability and the APRA buffer
Serviceability is assessed under the Australian Prudential Regulation Authority (APRA) buffer, which currently requires lenders to test repayments at three percentage points above the actual interest rate. If the offered rate is 6.00 per cent, repayments are tested at 9.00 per cent. The assessment is applied to the individuals behind the structure — trustee directors, adult beneficiaries acting as economic owners, or unit holders, depending on the structure.
For unit trust loans with multiple unit holders, lenders typically assess each unit holder’s income and liabilities proportionally to their unit holding. This matters because it means co-investors are not just assessed on their share of the property — they are also assessed as individuals who must each be creditworthy enough to support their portion.
Personal guarantees
Personal guarantees are almost always required in both structures. In a discretionary trust, the trustee directors or individual trustees typically guarantee the loan. In a unit trust, lenders often require each unit holder to provide a personal guarantee — and in some cases a joint and several guarantee, meaning any one unit holder can be pursued for the full shortfall if the trust defaults. This is a meaningful difference for teachers considering co-investing in a unit trust, because it means each unit holder may be exposed beyond their pro-rata share.
Teacher income treatment
Teacher income is assessed the same way it would be for a personal-name loan:
- Permanent teaching income is generally accepted at 100 per cent with standard payslips
- Contract teachers usually need twelve months or more of continuous contracts for full recognition
- Casual and relief teachers often need six to twelve months of consistent work
- Tutoring and second-job income are typically accepted when properly documented
- Higher duties allowances may be counted if ongoing and verifiable
HECS-HELP debts, credit card limits, and other personal liabilities reduce borrowing capacity in the usual way. The trust structure does not insulate the individuals’ financial profile from lender review.
Tax, Control,l and Asset-Protection Basics
The following is general information rather than tax advice. Specific decisions should be made with a qualified accountant who understands individual circumstances.
Income distribution
A discretionary trust can distribute net income to different beneficiaries each year in whatever proportions the trustee decides, subject to the deed. A unit trust distributes income strictly in proportion to unit holdings — a 40 per cent unit holder receives 40 per cent of the distributable income. The flexibility of the discretionary model is valuable where family marginal rates differ meaningfully. The certainty of the unit trust model is valuable where unrelated investors need their shares protected.
Capital gains tax discount
Both structures can generally access the 50 per cent capital gains tax (CGT) discount on properties held for more than twelve months, provided the gain is distributed to individual beneficiaries or unit holders. In a unit trust, the discount applies at the unit holder level according to their proportional share of the gain. In a discretionary trust, it applies at the beneficiary level once the gain is distributed.
The trapped losses problem
Losses are where the structures diverge meaningfully. In both unit and discretionary trusts, tax losses from a negatively geared property are generally trapped within the trust and cannot be distributed to beneficiaries or unit holders to offset other personal income. Losses can usually be carried forward and offset against future trust income, but the immediate tax benefit that a personal-name investor enjoys through negative gearing against salary is not available.
This is the same limitation in both structures and is a major reason both trust types tend not to suit first investment properties that will be negatively geared against a teacher’s salary.
Control
Control is concentrated in different places. In a discretionary trust, the trustee controls distribution decisions each year, subject to the deed. In a unit trust, control follows unit holdings and voting rights defined in the deed. For two unrelated teacher investors, the unit trust structure gives each of them a defined say in the investment. For a family using a discretionary trust, the trustee typically has discretion to act across the interests of the family members as a group.
Asset protection
Discretionary trusts are generally considered to offer stronger asset protection than unit trusts because no single beneficiary has a fixed entitlement. In a unit trust, each unit holder has a defined beneficial interest that can be treated as an asset belonging to that unit holder, which means it may be more accessible to personal creditors of a unit holder in certain circumstances. For teachers with genuine asset protection concerns, this is a meaningful difference.
Costs and Trade-Offs
Both trust structures involve real costs, and these need to be weighed honestly against the strategic benefit.
Setup costs
Establishing either trust structure with a corporate trustee typically costs a few thousand dollars upfront. This covers legal drafting or purchase of the deed, incorporation of the trustee company, ASIC registration fees, and accountant’s fees for structure advice and initial tax registrations. Setup costs are broadly similar between the two trust types, though specific deed complexity can push unit trust costs slightly higher.
Ongoing costs
Each year, either trust incurs accountant’s fees for the trust tax return and distribution minutes or unit holder statements, typically $1,000 to $2,500, along with the ASIC annual review fee for the corporate trustee. Additional costs apply when circumstances change — new unit issues, trustee changes, or deed amendments. For a single investment property, these ongoing costs can absorb a meaningful portion of the net return.
Lending cost differences
Some lenders apply small interest rate loadings or restrict specific product features on trust loans, and the effect can be slightly more pronounced for unit trusts simply because the lender panel is smaller. These differences have narrowed in recent years, but are worth confirming as part of lender selection rather than being assumed away.
Complexity cost
Both structures add administrative friction to every future financial decision. Unit trusts add a layer where unit transfers, new unit issues, or redemptions happen. For co-investing structures, this complexity is typically worth it for the ownership clarity. For a family using a single investment property, a discretionary trust is usually simpler to run on an ongoing basis.
Real Teacher Investor Scenarios
The following scenarios are illustrative and are not tax, legal, or lending advice for any specific situation.
Scenario one: a teacher couple building a family portfolio
A permanent secondary teacher earning $105,000 and her partner, a corporate manager earning $180,000, plan a three-property investment portfolio over the next decade. They establish a discretionary family trust with a corporate trustee. The distribution flexibility allows rental income to be directed to the lower-earning partner each year, and the structure accommodates future properties as they are added. Their accountant confirms the long-term plan justifies the setup and ongoing costs.
Scenario two: Two teacher friends co-investing
Two permanent teachers — one in Melbourne, one in Sydney — have been discussing investment together for years and want to buy a $720,000 investment property in a regional growth area. Because they are not family, a discretionary trust does not fit. They establish a unit trust with a corporate trustee, each holding 50 per cent of the units. The structure defines their ownership, the lender assesses each of them individually, each provides a personal guarantee, and the exit arrangements are set out clearly in the unit holder agreement. The unit trust is the right structure for this situation precisely because it does not rely on family discretion.
Scenario three: first-investor teacher, where the trust was overkill
A single primary teacher on $85,000 sets up a discretionary trust on the advice of a property seminar to buy her first investment property. The property is negatively geared, and the loss is trapped in the trust rather than offsetting her salary. She also incurs around $1,800 per year in trust compliance costs. After two years, her accountant recommends holding future investments in her personal name. The structure added cost without delivering a benefit for the strategy she actually has.
Scenario four: teacher siblings, where a unit trust adds clarity
Three teacher siblings inherit a small sum and decide to pool it with personal savings for an investment property. They want to build wealth together but also want clarity on their respective shares for future decisions around selling, buying out a sibling, or dealing with life changes. A unit trust with units split proportionally to each sibling’s contribution gives them a clean structure with defined rights, defined responsibilities, and a clear framework for eventual exit. A discretionary trust would have been less appropriate because none of them would have had a defined share.
When Neither Trust Structure May Be the Right Choice
There are situations where a personal-name purchase genuinely produces a better outcome than either trust type.
- A first investment property that will be negatively geared, where the loss is more useful in offsetting the teacher’s salary income
- A single teacher with no co-investors and no specific asset protection concern
- Cash-flow-sensitive investors where annual compliance costs materially erode the net return
- A property that may later become the family home, losing the main residence CGT exemption if held through a trust
- Tight settlement timelines where the additional application complexity creates unnecessary risk
- Situations where the accountant does not support the need for the structure on the specific facts
For teachers in any of these situations, buying into personal names and revisiting the trust question later is usually the cleaner starting point.
A Practical Decision Framework
Before committing to a unit trust or discretionary trust structure, it helps to work through a short set of questions. This is the same framework a broker, working with an accountant, would typically walk through with a teacher investor.
- Who is investing together — is this you alone, a family unit, or co-investors with separate interests?
- Do you need fixed ownership shares for clarity, or is discretionary distribution more valuable for your household?
- Is tax flexibility through distribution discretion more important than certainty of entitlement?
- Is asset protection a genuine concern based on your personal or professional exposure?
- Will the property be negatively geared, and will the trapped losses be acceptable until the property produces taxable income?
- Do you have a clear multi-property strategy, or is this a one-property plan?
- Are you comfortable with a smaller lender panel, more documentation, and personal guarantees?
- Does the investment’s expected return absorb the setup and ongoing compliance costs without undermining the case?
If the answers point to family investing, distribution flexibility, and long-term planning, a discretionary trust is usually the better fit. If the answers point to co-investing with unrelated parties, a need for defined ownership shares, or a clean exit framework, a unit trust is usually the better fit. If the answers point to a simple first investment with straightforward objectives, a personal-name purchase is often the smartest starting point.
The Bottom Line
For Australian teacher investors, the choice between a unit trust and a discretionary trust comes down to who is investing together and what the strategy needs to achieve. Discretionary trusts suit family investing, long-term portfolio building, and households that benefit from flexible income distribution. Unit trusts suit co-investing with unrelated parties, situations where defined ownership matters, and investments where clean exit arrangements between stakeholders are important.
Both structures add complexity, both require professional support to run properly, and both trap negative-gearing losses inside the trust rather than offsetting salary. The teachers who use these structures well are the ones who start with a clear investor profile, match the structure to the way they are actually investing, and treat setup and ongoing costs as a considered part of the investment case. For simpler situations — a single investor with one property to negatively gear — personal-name ownership is usually still the cleanest answer. The structure should follow the investment, not dictate it.
Frequently Asked Questions (FAQs)
1. Which trust is better for unrelated co-investors?
Generally, a unit trust. Fixed unit ownership gives each investor a defined share of income and capital that matches their contribution, which is important when the investors are not a single family. Discretionary trusts rely on trustee discretion to allocate income, which works well for families but creates uncertainty when co-investors need to know their rights. For siblings, friends, or colleagues investing together, a unit trust provides the clarity the relationship usually requires.
2. Which trust is better for family investing?
Usually,y a discretionary trust. The flexibility to vary income distributions between family members each year is valuable where marginal tax rates differ, and the asset protection is generally stronger because no single beneficiary has a fixed entitlement. For teachers investing with a spouse, children, or parents, a discretionary trust is the more common and typically more appropriate structure.
3. Do banks lend differently to unit trusts and discretionary trusts?
Yes. Most Australian lenders that offer trust loans are more comfortable with discretionary trusts, and the lender panel for unit trust loans is typically smaller. Lender assessment also differs: unit trust applications often involve reviewing each unit holder individually and requiring personal guarantees from each, while discretionary trust applications focus on the trustee directors or individual trustees. Lender selection is more consequential for unit trust loans precisely because fewer lenders are willing to lend to them.
4. Will I still need to provide personal guarantees?
In almost all cases, yes. In a discretionary trust, the trustee directors or individual trustees typically guarantee the loan. In a unit trust, lenders often require each unit holder to provide a personal guarantee, and in some cases, a joint and several guarantee that exposes each unit holder to the full shortfall rather than only their proportional share. Either way, the trust structure does not separate the individuals from the mortgage itself.
5. Can losses in a unit trust offset my teaching salary?
Generally no. Losses from a negatively geared property held in a unit trust are typically trapped inside the trust and cannot be distributed to unit holders to offset other personal income. Losses can usually be carried forward against future trust income,e but do not reduce the unit holders’ salary tax in the current year. This is the same limitation that applies to discretionary trusts, and it is why both trust types tend to be less suitable than personal-name ownership for a first negatively geared investment.
6. Is a unit trust simpler than a discretionary trust for defined ownership shares?
Yes, in that respect. Unit trusts are designed specifically to record fixed ownership shares, and the unit holding mechanism makes each investor’s share unambiguous. This simplicity is the core reason unit trusts are used for co-investing. Discretionary trusts are more flexible on distributions but deliberately avoid fixed shares, which is why they do not suit situations where ownership clarity matters.
7. Is a trust structure worth it for a first investment property?
Usually not, for either type. A first investment property — particularly one that will be negatively geared — is generally better held in personal names because the tax loss can offset salary income. Both trust types trap losses, which removes that benefit. The right time for a trust structure tends to come when the strategy has matured: a second or third property, a household with genuine distribution flexibility, a co-investing arrangement, or a specific asset protection need. Using a trust for the first purchase is one of the most common reasons teachers end up with structures that cost more than they deliver.