How Concessional Contributions Power Your SMSF Property Loan Repayments

Sep 4

6 min read

Rent from the premises rarely covers an SMSF loan repayment on its own. Something has to cover the difference, and, for most self-employed trustees, that something is concessional contributions.

The size of that difference is the number worth working out before you buy, not after. It decides how much of your annual contribution room is already committed, and it is one of the first things a lender calculates when assessing the fund.

What are concessional contributions, and how do they help repay an SMSF loan?

Concessional contributions are before-tax contributions into your super fund, taxed at 15% inside the fund rather than at your marginal rate. For a fund holding a property loan, they act as a second income stream alongside rent. Together, rent and contributions cover the repayments, the property outgoings and the fund's running costs.

There are three ways they arrive: Superannuation Guarantee (SG) payments from your company at 12%, salary sacrifice arranged through your own payroll, and personal contributions you make from your own money and later claim as a deduction. All three count towards the same annual limit, which is $32,500 per member for 2026-27. A two-member fund therefore has $65,000 of annual room to work with.

The gap between rent and repayment is the number to size

Work it out in that order: repayment first, net rent second, difference third.

Take a $700,000 commercial premises bought at 70% LVR, so a $490,000 limited recourse borrowing arrangement (LRBA). At around 7% over a 20-year term, repayments land near $3,800 a month, or roughly $45,600 a year. A 6% gross yield produces $42,000 in rent, but rates, insurance, the annual audit and fund administration take a slice, so call it $35,000 net.

That leaves a gap of about $10,600 a year.

Here is the part that catches people. Contributions are taxed at 15% on the way in, so the fund does not receive what you send. Covering a $10,600 shortfall takes roughly $12,470 of gross concessional contributions. Against $65,000 of combined cap room, that is comfortable. Against a single member's $32,500, it is still manageable, but it uses close to 40% of the year's capacity.

Figures above are illustrative only. Run yours on the actual rate quoted, the actual lease, and your own outgoings, because a half per cent movement in either the rate or the yield changes the gap more than most trustees expect.

Do lenders count super contributions when assessing an SMSF loan?

Lenders assess an SMSF loan on the fund's income, which is rent plus the contributions reaching the fund. Business profit does not count directly. Superannuation Guarantee payments are generally read as the strongest evidence because they are systematic, while irregular personal contributions are often discounted where the history is lumpy.

Source	How it reaches the fund	How lenders tend to read it
Superannuation Guarantee at 12%	Paid by your company each pay run, within seven business days of payday	Systematic, so it carries the most weight
Salary sacrifice	Agreed with your company and processed through payroll	Reliable where payroll itself is steady
Personal deductible contributions	Paid from your own funds, with a notice of intent lodged and acknowledged	Useful, though often discounted where the history is lumpy
Carry-forward catch-up	One-off use of unused cap from earlier years	Helps the deposit and the buffer more than ongoing servicing

The mix matters because a lender is forecasting forward, and the sources are not equally predictable. A trustee drawing a wage through their company presents a very different file from one who transfers whatever is left in the business account each June, even where the annual total is identical.

Payday super, which started on 1 July 2026, quietly helped here. SG now has to reach the fund within seven business days of each pay run rather than sitting until the quarterly deadline. If you pay yourself a regular wage, your contribution history now shows an unbroken monthly or fortnightly rhythm, which is easier for an assessor to project than four annual lumps. If you draw dividends or trust distributions instead of a wage, none of that applies, and your contributions stay discretionary.

What are carry-forward concessional contributions?

Carry-forward concessional contributions let you use unused cap from the previous five financial years in a single year, provided your total super balance was below $500,000 at the prior 30 June. For someone who contributed little while building a business, this can open room well above the $32,500 annual cap.

It is the lever self-employed trustees forget most often, and for a fund preparing to borrow, the timing is worth thinking about. A catch-up contribution made in the year before you apply lifts the fund balance, strengthens the deposit and helps the post-settlement cash position, all of which matter more at the application stage than an extra few thousand a year of servicing does later. It also brings a deduction in a year you may have traded well.

The balance test bites, though. Once the fund crosses $500,000, the door closes on carry-forward, and buying a property tends to push a balance past that mark fairly quickly. If the room is there, it usually makes sense to use it before settlement rather than after.

Where the contribution strategy runs out of road

Contributions are a capped and conditional income stream, which is exactly why a loan should not lean on them too heavily.

The cap is a hard edge. Go past $32,500, and the excess is added to your assessable income and taxed at your marginal rate, with a 15% offset for the tax the fund already paid. Contributions that were meant to help the loan end up costing more than they save.
Higher earners keep less of the benefit. Once your income plus concessional contributions passes $250,000, Division 293 tax adds another 15%. The strategy still works at 30% versus a 47% marginal rate, but the margin is narrower than the headline 15% suggests.
Age closes the door before the loan ends. From 67 to 74, you need to meet the work test — 40 hours across 30 consecutive days — to claim a deduction on a personal contribution. After the 28th day of the month following your 75th birthday, personal deductible contributions stop entirely. A 20-year loan taken at 58 outlives that. Either the rent has to carry the repayments by then, or the loan does.
Trading years vary. A quiet 12 months reduces what you can contribute; at the same time, it squeezes the business paying the rent. The two risks are correlated, which is the argument for keeping the fund's cash buffer genuinely separate rather than treating SMSF liquidity requirements as a formality.

One more point that sits underneath all of this. If your own business occupies the premises, the rent has to be set at market rate on a written lease. Charging yourself less to ease a tight quarter shifts the whole burden onto contributions and creates a non-arm's-length income problem at the same time. Market rent is what makes owning your business premises through super hold together.

What to line up before you apply

12 to 24 months of contribution records showing a pattern rather than one June transfer.
A realistic net rent figure, after rates, insurance, audit and administration, not the gross yield from the listing.
Your gap number, grossed up by 15% so it reflects what actually has to leave your pocket.
Notices of intent lodged and acknowledged for any personal deductible contributions, since an unacknowledged notice means no deduction.
Your carry-forward position checked against the prior 30 June balance before it is out of reach.
A cash buffer held separately from anything you are counting towards servicing.

If the latest financials are not finished, that does not have to stall the conversation. A low doc SMSF loan can be assessed on an accountant's letter, recent business bank statements or historical BAS instead.

Work out your gap before you commit to a price

The calculation above takes about 20 minutes with your actual numbers, and it changes what you should be bidding. Most trustees set a purchase price first and discover the contribution commitment afterwards, which can be the wrong way round.

We can run it with you. Call 1300 781 680 or arrange a free SMSF finance session, and we will work through your contribution capacity, what a commercial SMSF loan could support against it, and where your fund sits today.

This article is general information only. It does not take into account your objectives, financial situation or needs, and it is not tax, legal or financial advice. Contribution caps, thresholds and lender policies change. Speak with your accountant and a licensed financial adviser about your fund's circumstances before acting.