In Summary: Key Takeaways on Mixed-Use Assets Rules
Alright, here’s what you need to remember about mixed-use assets:
- Mixed-use assets are those used for both business and personal purposes, like a company car you drive to meetings and to the beach.
- The tax rules around these assets can get tricky, especially when it comes to GST and FBT. The more personal use, the more complicated it gets.
- You’ll need to calculate the business vs. personal use percentage and adjust your filings based on that.
- Failing to track everything carefully could result in missing out on deductions or paying extra tax.
If this all seems like a lot to handle, don’t stress—consulting a professional is the way to go. A tax advisor or accountant can help make sure you’re on the right track and not leaving money on the table. So, if you’re dealing with mixed-use assets, reach out to an expert to get the personalized advice you need. It’ll make your life a whole lot easier!

So, you’ve heard about mixed assets, but what the heck are they really? Simply put, these are assets used for both business and personal purposes—think holiday homes or company cars that double as family transport.
Sounds pretty straightforward, right? But when you throw GST and FBT into the mix, things get a little murky. Don’t worry, though—I’m here to break it down for you in simple terms. Whether you’re dealing with the tax implications of your mixed-use property or trying to figure out how to calculate the value for GST, I’ve got you covered. Let’s dive in.
What Are Mixed-Use Assets?
So, what exactly are mixed-use assets? In simple terms, they’re assets that serve both business and personal purposes. Think of a company car you drive to meetings but also use for weekend trips with the family. Or a holiday home that you rent out to clients part of the year, but enjoy yourself the rest of the time.
These assets are kinda like the Swiss Army knife of property—versatile, but tricky when it comes to taxes. The catch is that the more personal use you get out of them, the more complex your tax situation becomes. That’s where GST, FBT, and income tax come into play. GST applies when you’re using the asset for business, FBT (Fringe Benefits Tax) is for those private trips you take in the company car, and income tax? Well, that’s for any income generated if you decide to rent out that holiday home. Basically, mixed-use assets make you think twice before you put the pedal to the metal—or open that holiday home to guests!
The Importance of Mixed-Use Asset Rules in GST and FBT
Alright, let’s get into why mixed-use asset rules are a big deal when it comes to GST and FBT. It’s all about the fine line between business and personal use, and trust me, the taxman notices if you’re crossing it.
- GST and Mixed-Use Assets When it comes to GST, things get a bit tricky with mixed-use assets. Here’s how it works:
- Input tax: This is the GST you pay on your business-related expenses (think fuel for your company car or renovations to your holiday home).
- Output tax: This is the GST you charge on goods or services you sell—if you’re renting out your holiday home, for example. So, depending on how much you use the asset for business, you can claim back the input tax. But, if you’re using it personally, you might have to pay the output tax. It’s all about balance.
- FBT and Mixed-Use Assets Here’s the deal with FBT (Fringe Benefits Tax):
- If you’re using a company asset like a car for personal stuff—say, driving to the beach instead of just meetings—then FBT kicks in.
- The more you use it for personal reasons, the higher the FBT. Simple as that.
- What Qualifies as a Business Expense? When you’re trying to figure out your tax deductions, business expenses are the golden ticket. But personal use can mess with that:
- Business expenses: Things like repairs, insurance, and fuel for your company car are fair game.
- Personal use: If you’re using the car for personal trips, you can’t deduct those expenses. The same goes for a holiday home if you’re staying there yourself instead of renting it out.
So, the more personal use you get out of a mixed-use asset, the less you can claim as a business expense. It’s like trying to sneak in a cheeky holiday on the company’s dime—but the tax rules are watching closely.

Private Use of Mixed-Use Assets: How It Affects Your Taxes
Let’s talk about private use of mixed-use assets—this is where things can get a little messy when it comes to taxes. In simple terms, private use means any use of a company asset that isn’t for business purposes. Think: using your company car to zip around for personal errands or heading off on a weekend getaway in your holiday home. Here’s how that personal use can mess with your tax calculations:
Private Use Scenario | Impact on GST | Impact on FBT | Tax Filing Considerations |
---|---|---|---|
Company car used for personal travel | Personal use means you can’t claim all the input tax on fuel or maintenance. | FBT applies because you’re using the car for non-business purposes. | You’ll need to calculate the personal use percentage to adjust your tax return. |
Holiday home used personally | You can’t claim GST back on the rent if you’re using it yourself. | No FBT for using the property privately unless it’s tied to a benefit scheme. | Declare personal use days in your filing to adjust income tax and GST claims. |
Laptop used for both business and personal use | You must apportion the GST claim based on business vs. personal use. | FBT doesn’t apply unless it’s predominantly for personal use. | Allocate personal use percentage for correct GST and income tax filings. |
So, if you’re using a company car for a road trip or chilling in your holiday home instead of renting it out, those personal touches make a difference. Your GST claims get reduced, and FBT is going to hit you where it hurts. It’s all about keeping track of those private moments and making sure they don’t mess with your tax obligations.
How to Calculate the Value of Your Mixed-Use Assets
Calculating the value of your mixed-use assets might sound like a nightmare, but trust me, it’s not that bad once you get the hang of it. The key is figuring out the split between business and personal use. Here’s how you can do it step by step, plus some common mistakes you’ll want to avoid:
Step | What You Need to Do | Mistakes to Avoid | Impact on GST & FBT |
---|---|---|---|
Step 1: Determine the business use percentage | Keep track of how much the asset is used for business vs. personal. A simple way? Log your business trips and personal use. | Failing to keep accurate records. Guessing percentages. | If you claim too much business use, you’ll get hit with FBT penalties. Too little? You’re missing out on GST claims. |
Step 2: Calculate the personal use percentage | Calculate the amount of time the asset is used for personal use. For example, if it’s a holiday home, count the days you personally use it. | Overestimating personal use to avoid FBT. | The more personal use, the less GST you can claim, and more FBT you’ll owe. |
Step 3: Adjust for GST and FBT | Apply the correct percentages when calculating GST and FBT. For example, if you use a company car 60% for business, you can claim 60% of the GST. | Mixing personal and business use without splitting them. | Incorrect allocation could lead to under or overpayment of both GST and FBT, potentially triggering audits. |
Step 4: Recalculate annually | Recalculate your percentages at least once a year to ensure they’re still accurate. | Not reviewing your asset usage periodically. | If you don’t recalculate, your claims could be outdated, leading to issues during tax season. |
By splitting the value of your mixed-use assets between business and personal use, you’ll keep things clear—and your tax obligations in check. The trick is not to take shortcuts. If you’re uncertain about your calculations, don’t skip the details. GST and FBT might seem like a lot, but once you get the process down, it’ll be smooth sailing.

Examples of Private Use and Personal Goods in Mixed-Use Assets
Alright, let’s tackle the question—what is considered a personal use asset? Simply put, it’s any asset that’s used for your own benefit and not for business. Think about that company car you take for a weekend road trip or the office laptop you use to check personal emails at night. If you’re using an asset like this for anything other than business purposes, it’s considered personal use.
Now, let’s take a look at some real-life examples of personal goods in mixed-use assets. Imagine you’ve got a company car. You use it to visit clients, but you also take it to the beach on weekends. That’s personal use, and it’s important to track how much of that use is actually for personal reasons. Or, maybe you’ve got a holiday home that you rent out to clients for part of the year, but you also spend some weekends there with your family. Those are classic examples of personal goods used for both business and personal purposes.
This brings us to the concept of “goods for own use.” When you use a business asset for personal reasons, you’re technically consuming it as if it were your own. This has serious implications for GST and FBT. If you’re using that company car for a few personal trips, you can’t claim the full GST on expenses like fuel or maintenance. Similarly, the more personal use you get out of an asset, the more FBT you’ll be liable for. In other words, personal use not only affects your deductions but could also increase the tax you owe. So, keep track of that personal use, because it’s going to make a difference when tax time rolls around.
Common Questions About Mixed-Use Assets and Tax Implications
What is a mixed-use asset?
A mixed-use asset is an asset that serves both business and personal purposes. For example, a company car used for work but also driven on weekends for personal trips, or a holiday home rented out to clients but also used by the owner.
What is private use of assets?
Private use refers to using a business asset for personal reasons, like taking a company car on a family road trip or using office equipment at home for personal projects.

How to record goods for own use?
To record goods for own use, keep track of how much the asset is used for personal purposes. You need to calculate the percentage of personal use and adjust your tax filings accordingly, especially for GST and FBT.
How do I work out goods for own use?
To work out goods for own use, track the time or usage of an asset that’s used both for business and personal reasons. For instance, if you use a company car 50% of the time for personal trips, then 50% of the expenses will be considered for personal use.
What are five examples of private goods?
- Personal items used at work (e.g., a personal laptop used for business tasks).
- A company car used for family holidays.
- A business laptop used for personal browsing.
- Holiday homes used both for business rentals and personal vacations.
- Office space used for both business meetings and personal gatherings.
What is the definition of personal use?
Personal use refers to using a business asset for private activities, such as personal errands or leisure, instead of business-related tasks. Personal use reduces the tax deductions you can claim for that asset.
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