Tax Time Misinformation: How to Avoid Bad Tax Advice

ATO Warning — Tax Time 2026

Tax season brings out tax tips from everywhere.
Most of it is well-intentioned. Some of it is dangerously wrong.

The ATO is warning: Your tax return isn't the place for guesswork. One piece of bad advice can cost you thousands in penalties, interest and compliance action.

The sources

TikTok, Instagram, Reddit, AI platforms, friends, family

The promise

Bigger refunds, shortcuts, ways to pay less tax

The reality

Most of it is either wrong or incomplete

The misinformation problem

What's happening right now:

The ATO is seeing a rise in tax-related "tips", "hacks" and advice being shared online—especially on TikTok, Instagram, Reddit and through AI platforms. Much of it promises bigger refunds, shortcuts or ways to pay less tax.

The problem: Most of it is either wrong or incomplete. It works in one person's situation but not yours. Or it's outdated—rules changed, but the tip is still circulating.

Who's pushing it:

📱

Social media "finfluencers"

With no qualifications

🤖

AI platforms

That generate plausible-sounding but inaccurate advice

👥

Friends and family

Who got a bigger refund and are sharing what they did

⚠️

Unqualified advice

Who make money from aggressive claims

The people sharing it rarely say: "I'm not a tax professional" or "This might not apply to your situation" or "The ATO might challenge this."

A bigger refund is not always a better outcome.
If the claim cannot be supported, it can become a debt later.

Why bad tax advice is expensive

1. The ATO is watching

The ATO uses data analytics and Single Touch Payroll data to identify risky returns. If your return stands out as inconsistent with your industry, income level or past claims, it gets flagged for review.

A review isn't the end. It's the start.

2. Penalties stack fast

If the ATO finds an error:

Administrative penalties: 25% to 75% of the unpaid tax
Interest: ~5% per annum from when tax was originally due
Court action: In serious cases, criminal prosecution

3. The scrutiny is real

The ATO has flagged three areas for focused attention this Tax Time:

Work-related deductions and expenses
Omitted income
Documentation and substantiation

Real numbers

What an unsupported $15,000 deduction could cost you

Additional tax

$4,500

30% tax rate

Penalty (75%)

$3,375

of tax owing

Interest

$2,000+

accrued over time

Total cost

~$9,875

for one bad claim

That refund you were trying to get suddenly becomes a bill.

Common Tax Time mistakes

Mistake 1

"I saw this deduction on TikTok, so I claimed it"

This is the most common error. Someone posts about a tax tip that worked for them. You see it. You claim it. The ATO disallows it.

The risk

You had no idea the claim was wrong. But the ATO still charges interest and penalties.

Example

A TikToker claims their home office is 100% deductible because "I work from home." You do too, so you claim it. But the rules require you to calculate the actual percentage of your home used for work and only claim that percentage of running expenses. Claiming 100% because "I work from home" is almost always wrong.

Mistake 2

"My accountant said I could claim this."

If your accountant is using generic advice or has not asked detailed questions about your situation, your claim may be at risk.

A CAREFUL accountant asks

Do you have supporting documents?
Is this the first time you're claiming this?
How does this compare to industry norms?
Are you mixing work and personal use?

RISKY ADVICE

Relies on general information without checking the details.

Mistake 3

"Cash work doesn't have to be reported"

This is a common misconception and increasingly risky.

The ATO has access to:

Bank deposit data PayPal and Stripe records Credit card statements Electronic payment records Business registration data (ABN lookups)

If cash came into your bank account, especially in patterns, the ATO can trace it. If you've claimed deductions but haven't reported matching income, the mismatch flags your return.

Mistake 4

"I'll claim it now and sort it out if audited"

This is a compliance gamble. If you get audited:

You'll need to defend the claim with documentation
If you can't, the ATO will disallow it, charge you the tax, add interest and penalties
You'll have to pay legal or accounting fees to defend yourself

It's cheaper to get it right the first time.

Mistake 5

"Other people claim this, so it must be okay"

Just because others claim something doesn't make it right. The ATO processes millions of returns. Some claims slip through. Some don't get audited. But that doesn't mean they're valid. Your return should be based on your actual situation, not what you think others are getting away with.

The areas the ATO is really checking

Work-related deductions and expenses

Home office (percentage of home, percentage of running costs)
Car expenses (work-related percentage, fuel records, diary evidence)
Clothing and uniforms (if genuinely specific to work—not just "clothes I wear to work")
Professional development and training
Subscriptions and memberships
Phone and internet (work-related percentage)

What gets challenged: Claims that don't match your industry. High deductions for a salaried worker in a corporate job; low deductions for a tradesperson. Claims without supporting documents.

Omitted income

Side-hustle income (freelancing, selling online, consulting)
Cash jobs and contract work
Rental income from holiday homes or investment properties
Investment income (dividends, interest)
Government payments (jobkeeper, disaster relief—it's still income)
Gifts and loans from family (if they're actually income)

What gets challenged: Income that appears in your bank account but not on your tax return. Patterns of spending that exceed your declared income.

Your safeguards

How to protect yourself

Be skeptical of Tax Time tips

If someone on social media promises a "tax hack" or "loophole", ask:

Is this person a qualified tax professional?
Are they advising based on my specific situation, or giving generic advice?
Are they acknowledging the risks?
Would they be willing to defend this to the ATO?

If the answer to any of these is "no", ignore the tip.

Don't rely on AI for tax advice

AI platforms can be helpful for understanding concepts. But they can also generate plausible-sounding but inaccurate advice. The ATO has stated: "Your tax return isn't the place for guesswork."

Use AI to understand tax principles. Use a tax professional to apply those principles to your situation.

Get professional advice

A qualified tax adviser will:

Ask detailed questions about your specific situation
Identify what you can and can't claim
Help you document and substantiate claims
Flag risky areas
Update you if rules change
Support you if the ATO asks questions

This costs money. But it's far cheaper than paying back taxes, interest and penalties.

Keep detailed records

Whatever you claim, be ready to support it. The ATO may ask for:

Receipts and invoices Bank and credit card statements Diary evidence (car, home office) Quotes or estimates Letters from your employer

If you can't produce evidence, the ATO will disallow the claim.

Report all income

If money came into your account that's income, report it. This includes:

Side-hustles and freelance work Cash jobs Rental income Investment income Government payments Family loans (if actually gifts)

Omitted income is one of the ATO's top audit triggers. The penalty can be significant.

What Modoras does differently

We're not here to find "shortcuts" or push aggressive claims. We're here to:

Get your tax right the first time

Detailed review of your actual situation
Identification of legitimate deductions you might miss
Clear explanation of what the ATO allows and why
Documentation and substantiation support

Protect you from risk

Flag areas that commonly get audited
Advise on documentation you need
Explain the risks of aggressive claims
Help you stay compliant, not just get a big refund

Give you peace of mind

You know your return is defensible
If the ATO asks questions, we have documentation ready
You're not playing a compliance game

Talk to Modoras

Don't let Tax Time misinformation
cost you.

If you're unsure whether a claim is valid, whether you're reporting all your income, or how the recent tax changes affect your situation, get in touch for a no-obligation conversation. The safest approach: get professional advice for anything you're unsure about. It costs less than penalties.

Get in touch

This article provides general guidance on common tax risks. Tax rules are specific to individual circumstances. Please contact us to discuss your situation before making claims or decisions on your tax return.