Rooming House
Will the rent carry the loan? A rooming house serviceability example
7 min read · By Daniel Lagden · 7 November 2026
The short version
- Lenders commonly assess rooming house rent more cautiously than you do. Many shade the income, allow their own outgoings and test the loan at a higher rate than you will pay.
- In the example the owner sees the rent covering the interest 1.44 times. The lender's test comes to 1.02 times.
- If the rent alone falls short of the cover a lender requires, your own income has to make up the difference, or the loan has to be smaller.
- A smaller loan can fix it. In the example, borrowing $1.2m instead of $1.3m clears a 1.1 times test.
Rooming house investors often assume the rent will carry the loan by itself. Sometimes it does. But a lender does not use your numbers, and the gap between your view and theirs is where deals stall. This example shows how the same property can look comfortable to you and borderline to a lender.
Quick summary: lenders cut the rent, set their own costs and test the loan at a higher rate. Run the test their way before you apply, so you know whether the rent can stand on its own.
How do lenders test whether the rent covers the loan?
Methods differ. For larger or purpose built rooming houses, some lenders use a rent cover test: the property's assessed net income divided by the interest on the loan at an assessment rate. Each lender sets its own minimum result, so the rent has to cover the interest with a margin. Where the rent clears the test, the lender may not need your personal income to carry the loan. Where it falls short, the lender may count your other income to make up the difference, or lend less.
A smaller rooming house that fits a lender's residential policy is often assessed another way, by shading the rent and adding it to your income. Which method applies is worth settling before you commit.
The example
These figures are illustrative. The shading, outgoings, assessment rate and minimum cover are assumptions chosen to show the mechanics, not any lender's policy.
- A nine room rooming house, with each room let at $420 a week.
- A loan of $1,300,000 at an actual interest rate of 7.0 per cent.
- Your view: 8 per cent vacancy and outgoings of $50,000 a year.
- The lender's view: it takes 85 per cent of the gross rent, allows outgoings of $54,000 a year and tests the loan at an assessment rate of 8.5 per cent.
- The lender wants the assessed net income to cover the assessed interest at least 1.1 times.
Your view of the property
| Line | Amount |
|---|---|
| Gross room income (9 rooms at $420 for 52 weeks) | $196,560 |
| Less vacancy allowance (8 per cent) | $15,725 |
| Less outgoings | $50,000 |
| Net income | $130,835 |
| Interest at 7.0 per cent on $1,300,000 | $91,000 |
| Rent cover (net income divided by interest) | 1.44 times |
The lender's view of the same property
| Line | Amount |
|---|---|
| Gross room income | $196,560 |
| Income the lender uses (85 per cent) | $167,076 |
| Less the lender's outgoings | $54,000 |
| Assessed net income | $113,076 |
| Interest at the 8.5 per cent assessment rate | $110,500 |
| Rent cover | 1.02 times |
| Assessed net income needed for 1.1 times | $121,550 |
| Shortfall | $8,474 |
On your numbers the rent covers the interest with room to spare. On the lender's, it covers it by only 2 per cent, short of the 1.1 times they want. The $8,474 gap is not a loss. It is the amount your own income may need to support, or a sign that the loan is too big for the rent alone. To clear the test on rent alone, the loan would need to come down to about $1,209,000.
What changes the result?
| Loan | Interest at the assessment rate | Rent cover | Result |
|---|---|---|---|
| $1,300,000 | $110,500 | 1.02 times | Short by $8,474 |
| $1,200,000 | $102,000 | 1.11 times | Clears narrowly |
| $1,100,000 | $93,500 | 1.21 times | Clears with a margin |
Each $100,000 off the loan lifts the rent cover by roughly 0.1 times in this example. The other levers are higher rent, which needs evidence behind it, lower outgoings that the lender accepts, a lender that shades less or tests at a lower rate, and your own income where the lender allows it. Many lenders want to see proof of the rent: a history for an existing house, or a letting appraisal for a new build.
Why the lender's numbers are lower than yours
- Shading. Turnover, shared facilities and vacant rooms are more common than in a standard rental, so many lenders take only part of the gross rent.
- Their own outgoings. Many lenders allow for management, utilities, insurance, repairs and compliance whether or not your numbers include them.
- The assessment rate. Lenders commonly test at a rate above the one you pay, to allow for rises.
- A minimum margin. The cover has to clear a set multiple, so breaking even is not enough.
- Our guide to financing a rooming house explains how lenders shade the income.
How do you use this before you apply?
- Run your own numbers, then cut the rent and add costs the way a lender would.
- Ask the lender for its shading, its assessment rate and its required cover.
- Check the result against a smaller loan, so you know how much room you have.
- Keep the documented rent and twelve months of actual outgoings ready. They carry more weight than a projection.
- Tell your broker about your own income and debts early. If the rent falls short, your other income may need to fill the gap, and the lender assesses it all together.
General information only, current as at November 2026. The shading, outgoings, assessment rate and minimum cover are assumptions, not lender policy, and lenders differ. Figures are illustrative, not a market benchmark or a quote.
Run the numbers
Frequently asked questions
Can the rent from a rooming house cover the loan on its own?
Sometimes. Some lenders assess larger rooming houses on the rent alone, using a cover test, so your own income may not be needed. Whether it works depends on the loan size, the rent they accept, their costs and their rate test.
What is a rent cover test?
It is the property's assessed net income divided by the interest on the loan at the lender's assessment rate. The lender sets a minimum result, and the property has to clear it.
Why does a lender test at a higher rate than I pay?
It is a buffer, so the loan still works if rates rise. The size of the buffer differs between lenders.
What if the rent does not clear the test?
You can borrow less, add your own income where the lender allows it, show higher documented rent, or look at a lender whose policy fits the property better.
Do all lenders use a rent cover test?
No. Policies differ, and a smaller rooming house that fits a lender's residential policy is often assessed by adding shaded rent to your income. Ask which method applies before you apply.
Want your rooming house tested the way a lender will?
Send us the property, the rent roll and the loan you are after. We will run it the way a lender does and show you where it stands, before you apply.
Test my rooming house numbersGeneral information only. This article does not take into account your objectives, financial situation or needs, and is not credit assistance or financial advice.
