1. The $18,200 Rule in 2026
In the 2025–26 financial year, the tax-free threshold remains at $18,200. If you are an Australian resident for tax purposes, you don’t pay a single cent of income tax on the first $18,200 you earn.
When you start a job, you fill out a TFN Declaration. Question 8 asks: “Do you want to claim the tax-free threshold from this payer?”
- If you say Yes, your employer won’t take tax out of your pay until you’ve earned over $350/week.
- If you say No, your employer takes tax out of every dollar you earn (usually at a higher rate of about 16–31%).
2. The “Double Claim” Trap
Why ticking ‘Yes’ twice could cost you thousands at tax time.
Many students think that if they have two jobs, they can claim the threshold on both to maximize their weekly take-home pay. While this feels great on payday, it creates a “hidden debt” with the ATO that will be triggered the moment you lodge your tax return.
How the Mistake Happens
Imagine you have two jobs:
- Job A (Cafe): You earn $15,000/year. You claim the threshold. Your boss takes $0 tax.
- Job B (Retail): You earn $10,000/year. You claim the threshold again. Your boss takes $0 tax.
In your mind, you are under the $18,200 limit at both jobs. But the ATO adds them together.
The 2026 Calculation
- Your Total Income: $25,000
- The Threshold: $18,200
- Your Taxable Amount: $6,800
- The Debt: At the 2025-26 resident rate (16c for every $1 over $18,200), you owe roughly $1,088.
Because you told both bosses you were under the limit, neither took tax out. When you lodge your tax return in July 2026, the ATO will send you a bill for $1,088 plus the Medicare Levy.
3. Comparison: Claiming Once vs. Claiming Twice
| Scenario | Weekly Pay (Take-Home) | Tax Time Result |
| Claiming Once (Main Job Only) | Slightly lower weekly pay | Peace of mind (Often a small refund) |
| Claiming Twice | Maximum weekly cash | Major Debt (Payable immediately) |
| Claiming Zero | Lowest weekly pay | Big Refund (Forced savings) |
4. How to Fix a Double Claim in 2026
If you realize you’ve ticked “Yes” for two different employers, don’t panic. You can fix it today:
- Identify your “Second” Job: This should be the one where you earn the least amount of money.
- Request a New Form: Ask your manager or HR for a new Tax File Number Declaration form.
- Change Question 8: This time, tick “No” to claiming the tax-free threshold.
- Submit: Your employer will start withholding more tax, which will “pre-pay” your debt so you don’t get hit with a bill in July.
5. Pro-Tip: The “Medicare Levy” Surprise
In 2026, many students forget that even if they are under the $18,200 threshold, they might still be hit with the 2% Medicare Levy if their total income exceeds $26,000 (approx).
- The Strategy: If you earn close to $30,000 across multiple jobs, always claim the threshold on your highest-paying job only. This ensures enough tax is “banked” with the ATO to cover both your income tax and any levies you might owe.
