What Is a Notice of Assessment? ATO Tax Outcome Explained

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Notice of Assessment

Recognises income and expenses when they’re earned or incurred, not when cash changes hands. Required for larger businesses.

Notice of Assessment

A Notice of Assessment (NoA) is an official document issued by the Australian Taxation Office (ATO) after you lodge your tax return. It outlines your tax outcome — whether you owe money, are due a refund, or have no tax payable.

Every individual, sole trader, and company who lodges a tax return will receive a Notice of Assessment, either by mail or electronically.

What the Notice of Assessment Includes

  • Taxable income
  • Total tax payable
  • Tax withheld (e.g. from wages)
  • Medicare levy and other levies
  • Offsets and credits applied
  • Final result: refund, debt, or nil
  • Payment due date (if applicable)

It also shows your document identification number (DIN) and may reference previous balances.

When You’ll Receive It

  • Usually within 2–14 days of lodging your return
  • Sent to your myGov account, tax agent, or by post
  • For companies, it’s sent to the registered tax contact

Keep this document for at least 5 years — it may be needed for loans, grants, or future tax reviews.

How to Read the Notice

SectionWhat It Means
Taxable IncomeIncome after deductions
Tax PayableTotal tax based on your income
Credits/OffsetsPre-paid tax (e.g. PAYG withholding, tax offsets)
Net ResultWhat you owe or get back

Refund vs Amount Owing

  • Refund: ATO will transfer funds to your nominated bank account
  • Owing: You must pay the amount by the due date, or risk interest charges and penalties

You can also set up a payment plan via the ATO if needed.

How Ozobooks Helps

  • Interprets and explains your Notice of Assessment
  • Checks for errors or missing deductions
  • Assists with setting up ATO payment plans
  • Reconciles your tax payments in accounting software
  • Advises on future tax planning based on your NoA

FAQ

Q1: Is the Notice of Assessment the same as a tax refund?
No. The NoA tells you whether you’re getting a refund — but it’s not the refund itself.

Q2: What if I disagree with my NoA?
You can request an amendment or lodge an objection with the ATO. Ozobooks can help review it first.

Q3: Do I get one every year?
Yes — for every year you lodge a tax return.

Q4: Can I access past notices?
Yes — via myGov, your tax agent, or by calling the ATO.

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