How to Read Your Notice of Assessment: A Step-by-Step Guide
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By Leonie Martin
Posted On October 28, 2025
Receiving your Notice of Assessment (often called an NOA) from the Australian Taxation Office (ATO) can sometimes feel confusing. You’ve completed your tax return, waited for your result, and now this official document arrives in your inbox or letterbox. It looks full of figures, terms, and details that might seem a little tricky to understand. But once you know what each part means, it’s actually quite simple.
In this guide, we’ll walk you through your Notice of Assessment step by step. You’ll learn what it shows, why it’s important, and how to read it confidently. Whether you’re getting a refund or have tax to pay, understanding your NOA is essential for managing your finances correctly.
What Is a Notice of Assessment?
A Notice of Assessment is an official statement from the Australian Taxation Office that summarizes the outcome of your tax return. It confirms how much income tax you owe or how much you’ll receive as a refund. In other words, it’s the ATO’s way of saying, “We’ve checked your return, and here’s the result.”
The Notice of Assessment shows how the ATO calculated your taxable income, how much tax you’ve already paid, and whether you have any remaining balance. It also outlines any credits, offsets, or deductions that were applied to your account.
You’ll receive your NOA either online through your myGov account linked to the ATO or by post if you haven’t opted for electronic communication.
Why the Notice of Assessment Matters
Many people glance at their Notice of Assessment and then file it away without giving it much thought. But it’s actually one of the most important financial documents you’ll receive each year.
Your NOA confirms that the ATO has processed your tax return. It shows the final figure of your income tax for that financial year. If there are any errors in your return, your NOA will be the first place to spot them. Checking it carefully ensures everything is accurate and up-to-date.
You may also need your Notice of Assessment for various practical reasons. For example, banks often ask for it when you apply for a home loan or personal loan, as it’s proof of your income and tax history. It can also be useful for rental applications or government services that require proof of earnings.
Step 1: Locate Your Notice of Assessment
If you lodged your tax return online, you’ll likely receive your Notice of Assessment through your myGov account. The ATO will send you a message when it’s available.
To access it:
- Log in to your myGov account linked to the ATO.
- Go to “Tax,” then “Lodgments,” and choose “Income Tax.”
- You’ll find your latest NOA under your tax return summary.
If you lodged through a registered tax agent, they might receive it on your behalf and forward it to you. Those who still prefer paper communication will receive it in the mail a few weeks after lodgement.
Step 2: Check the Personal Details
The top section of your Notice of Assessment includes your personal information, such as your name, address, and tax file number (TFN). Make sure these details are correct. Even a small error could cause delays or issues with future correspondence from the ATO.
If you find a mistake, update your details as soon as possible through myGov or by contacting the ATO directly. Keeping your personal information accurate ensures your tax records stay in order.
Step 3: Review the Summary of Your Tax Return
This section shows an overview of the key figures from your tax return. It includes your total income, deductions, and the final taxable income used to calculate your tax.
Here’s what you’ll usually see:
- Taxable income: The total income you earned minus any deductions you claimed.
- Tax on taxable income: The amount of income tax calculated by the ATO based on your taxable income.
- Credits and offsets: Any tax offsets or credits, such as the low and middle income tax offset, that reduce your total tax payable.
- PAYG credits: The amount of tax your employer has already withheld from your wages throughout the year.
- Medicare levy and surcharge: The Medicare-related amounts you owe based on your income and private health cover status.
Reviewing this section helps you understand how the ATO reached the final result. It’s also a good time to check whether all your income sources and deductions have been included correctly.
Step 4: Look at the Result Refund or Amount Owing
The most important part of your Notice of Assessment is the result. This shows whether you’re entitled to a refund or need to pay additional tax.
If you’re due a refund, your NOA will show the amount and the date it will be paid into your nominated bank account. Refunds are usually processed within a few business days once your assessment is finalised.
If you owe tax, your NOA will include a payment due date and instructions on how to pay. It’s crucial to pay by the due date to avoid interest or penalties. You can make payments online through BPAY, credit card, or directly via the ATO’s payment options.
Step 5: Understand the Payment or Refund Details
Your Notice of Assessment also provides details about how your payment or refund will be processed.
For refunds, ensure your bank account information is correct. If you changed banks recently, update your account details with the ATO to avoid delays.
For amounts owed, check the payment reference number (PRN) and payment methods listed. The ATO provides several convenient ways to pay, including direct debit and BPAY. Keeping a record of your payment receipt is always a good idea for future reference.
Step 6: Review the Breakdown of Tax Calculations
The middle section of your Notice of Assessment often includes a detailed explanation of how your tax was calculated. It might look a little technical at first, but it’s worth understanding.
You’ll see:
- Your total assessable income (all sources of income, such as salary, interest, and dividends).
- Your total deductions (such as work-related expenses, donations, or self-education costs).
- The resulting taxable income (income minus deductions).
- The tax rate applied to your taxable income.
- Any offsets or credits reducing the total tax payable.
Reviewing this section can help you identify any discrepancies. For instance, if a deduction seems missing or your income looks higher than expected, it’s worth checking your records or contacting your tax agent.
Step 7: Check for Any Additional Information or Adjustments
Sometimes, the ATO may include adjustments on your Notice of Assessment if they’ve made changes to your tax return. This could be due to missing information, employer data, or discrepancies with pre-filled details.
The ATO usually explains any adjustments clearly in a separate section of your NOA. If you don’t understand why something was changed, you can log into myGov and compare your original return with the assessed version. You can also contact the ATO or your tax agent for clarification.
If you believe the ATO has made an error, you can request an amendment or lodge an objection. There’s no need to panic it’s a normal part of the tax process.
Step 8: Keep Your Notice of Assessment Safe
Once you’ve reviewed your Notice of Assessment, make sure to keep a copy in a secure place. You may need it for several reasons in the future.
It’s wise to store both digital and physical copies. Save the electronic version from your myGov account and back it up in a safe folder. If you receive a paper copy, keep it in your financial records with your other important documents.
Remember, your NOA may be required when applying for loans, government assistance, or when confirming income for rental applications. It also serves as an essential record if you ever need to prove your tax status or review your financial history.
Step 9: What to Do If Something Doesn’t Look Right
If you notice any figures that seem off or missing in your Notice of Assessment, don’t ignore them. Errors can happen due to incorrect information, missing employer data, or timing differences with your income reports.
First, double-check your original tax return and any supporting documents, such as payment summaries and receipts. If you still believe something isn’t right, contact the ATO or your tax agent as soon as possible.
You can also lodge an amendment online through myGov if you need to fix a mistake. The ATO allows amendments within two years for most individuals, so there’s time to make things right.
Step 10: Learn from Your Notice of Assessment
Your Notice of Assessment isn’t just a summary of your tax year; it’s a valuable learning tool. Reviewing it can help you plan better for next year’s tax return.
By looking at your income, deductions, and tax outcome, you can see whether you need to adjust your withholding amounts or keep better records of your expenses. It’s also an opportunity to understand how different income streams and offsets affect your overall tax position.
Being familiar with your NOA can make future tax time less stressful and help you make informed financial decisions all year round.
Final Thoughts
Understanding your Notice of Assessment doesn’t need to be complicated. It’s simply the ATO’s confirmation of how your tax return was assessed showing what you earned, what you claimed, and what you owe or receive.
By following these steps, you can confidently read your NOA, check for accuracy, and stay on top of your tax responsibilities. Keeping it safe and reviewing it carefully each year helps you maintain control over your finances and ensures there are no surprises later on.
So next time your Notice of Assessment arrives, take a few moments to go through it properly. It’s one of the easiest ways to stay informed about your tax situation and make sure everything adds up just as it should.
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