A managed investment trust (MIT) is an Australian trust structure used to pool investor money into assets like property, shares, infrastructure, and bonds, while qualifying for specific tax concessions under Australian tax law. MITs are the backbone of Australia’s managed fund industry, covering everything from listed property trusts to large wholesale funds used by superannuation funds and institutional investors.
What separates a MIT from an ordinary trust is a set of eligibility rules enforced by the Australian Taxation Office. Meeting those rules unlocks a withholding tax regime for foreign investors and, if the trustee elects into the attribution (AMIT) system, a more flexible way of passing income through to unit holders.
How a Trust Qualifies as a MIT
To be classified as a MIT, a trust must satisfy three core conditions: it must be a managed investment scheme (MIS) under the Corporations Act, it must be “widely held,” and it must not be a trading trust (meaning it earns mostly passive investment income rather than income from an active business).
The widely held test is where most of the technical detail sits, and the thresholds depend on what kind of scheme the trust is.
- Registered retail MIS: Widely held if it is listed on an approved Australian securities exchange, has at least 50 members, or has one or more “specified widely held entities” holding more than 25% of participation interests while no single other entity holds more than 60%.
- Registered wholesale MIS: Widely held if it has at least 25 members, or meets the same specified-entity ownership test described above.
- Unregistered wholesale MIS: Widely held only if it has at least 25 members.
“Participation interest” means the greater of an entity’s share of value in the trust, its control of membership rights, or its rights to distributions. In practice, this prevents a single large investor from dominating a trust while it still claims MIT status.
What Counts as a Specified Widely Held Entity
The member-count thresholds above can be satisfied indirectly through “specified widely held entities,” which are themselves large pooled structures. These include complying superannuation funds with at least 50 members, life insurance companies, foreign collective investment trusts with at least 50 members, and foreign super funds with at least 50 members. A limited partnership also qualifies if at least 95% of its membership interests are held by specified widely held entities and the remaining interests belong to a general partner that manages the partnership.
This matters because many wholesale MITs have only a handful of direct investors, but those investors are themselves large super funds or insurers representing thousands of underlying members. The specified-entity rules let the trust look through to the real breadth of its investor base.
What MITs Typically Invest In
MITs hold the same range of assets you would find in most pooled investment vehicles: Australian and international shares, commercial and industrial real estate, infrastructure assets like toll roads and airports, fixed-income securities, and cash. Australian real estate investment trusts (A-REITs) listed on the ASX are a common example of retail MITs that everyday investors can buy on an exchange.
The key constraint is that a MIT must earn predominantly passive income, such as rent, dividends, interest, and capital gains, rather than income from carrying on a trading business. A trust that buys and develops property to sell at a profit, for instance, may fail this test.
Tax Treatment for Investors
MIT status matters primarily because of how income flows through to investors. Like most Australian trusts, a MIT itself generally does not pay tax. Instead, the income retains its character (dividends stay dividends, capital gains stay capital gains) and is taxed in the hands of unit holders at their own marginal rates.
For foreign investors, MIT status is especially significant. Fund payments from a MIT to non-resident investors are subject to a final withholding tax rather than the higher rates that apply to ordinary trust distributions. The rate depends on the investor’s country of residence and any applicable tax treaty.
The AMIT Regime
Since the 2015-16 income year, MITs have had the option of electing into the attribution managed investment trust (AMIT) regime. Under the traditional trust rules, a trustee had to distribute every dollar of taxable income each year, and any mismatch between the trust’s tax position and its cash distributions could create compliance headaches.
Under the AMIT rules, the trustee determines each type of income or tax offset the trust has earned and then attributes those amounts to members on a “fair and reasonable basis” set out in the trust’s constituent documents. This means the trustee can match the tax character of what each investor receives to the actual mix of income the trust earned, rather than relying on a single present-entitlement calculation.
The practical benefits are significant. If the trustee discovers an error in a prior year’s tax calculation, the AMIT regime allows the adjustment to be carried forward and corrected in a later year (called an “unders and overs” mechanism) rather than requiring amended returns for every affected investor. For a fund with thousands of unit holders, this alone saves considerable time and cost.
Most large Australian fund managers have elected into the AMIT regime because it provides greater certainty for both the trustee and investors, and it better aligns the commercial reality of how distributions work with the tax reporting obligations.
How MIT Status Affects You as an Investor
If you hold units in an Australian managed fund, ETF, or listed property trust, you are very likely invested through a MIT or AMIT. Your annual tax statement (called an AMMA statement under the AMIT regime) will break down your share of income by character: franked dividends, interest, net capital gains, foreign income, and so on. You report each component separately on your tax return.
One detail worth noting: under the AMIT rules, the cost base of your units adjusts each year based on the difference between the cash you received and the taxable amounts attributed to you. If more income is attributed than cash distributed, your cost base increases, which reduces any capital gain when you eventually sell. If less income is attributed, your cost base decreases. Your fund’s annual statement will show the adjustment amount.
For most investors, you do not need to do anything to “elect” MIT or AMIT treatment. The fund manager makes that election at the trust level. What matters on your end is understanding the tax statement and using the correct figures when lodging your return.