Tax Filing Security Guide: Protect Your Personal Data During Tax Season

Tax season is identity theft season. Every year between January and April, millions of Americans file their taxes online, entering their most sensitive information — Social Security numbers, bank account details, employer data, and income figures — into web forms. Scammers know this, and tax-related phishing attacks spike by over 400% during filing season.

Tax Season Security Threats

Common Attack Types

Attack	Method
IRS impersonation	Calls, texts, or emails claiming you owe money
Phishing emails	"Your refund is ready — click here to claim"
Fake tax prep sites	Lookalike websites that steal your credentials
W-2 scams	Emails impersonating your employer requesting W-2 data
Malicious tax apps	Fake apps mimicking TurboTax or H&R Block

Why Tax Season Is Especially Dangerous

• Urgency: Deadlines create pressure that clouds judgment
• Unfamiliarity: Most people file taxes once a year and aren't fluent in the process
• Data density: You enter SSN, bank details, and income all in one session
• Trust exploitation: Scammers impersonate the IRS, a trusted authority

7 Essential Tax Filing Security Tips

1. Use Only Official Platforms

• IRS: irs.gov (type it directly — never click links)
• Tax software: Download from official app stores only
• Free File: Access through irs.gov/freefile, not search ads
• Never click "file your taxes" links in emails or text messages

2. Secure Your Authentication

Method	Security	Recommendation
Password only	Low	Not recommended
Password + SMS 2FA	Medium	Acceptable
Password + authenticator app	High	Recommended
ID.me verification	High	Recommended for IRS

3. Check Your Network

• Never file taxes on public WiFi — not at a coffee shop, library, or airport
• Use your home WiFi with a strong password or mobile data
• Consider a VPN for additional encryption

4. Spot Tax Scams

The IRS will never:

• Call you demanding immediate payment
• Threaten you with arrest over the phone
• Send emails asking you to click links
• Request gift card payments

5. Protect Your Tax Documents

• Store completed returns as encrypted PDFs
• Shred physical tax documents before discarding
• Use a password manager for tax platform credentials

6. Share Tax Info with Your Accountant Securely

Sending your SSN, W-2, or bank details via regular email or iMessage is risky. Use LOCK.PUB to create password-protected memos with expiration dates — your accountant gets the info, and it automatically disappears after they've accessed it.

7. Post-Filing Security Checklist

After filing:
☑ Log out of all tax platforms
☑ Clear browser cache and cookies
☑ Consider an IRS Identity Protection PIN
☑ Monitor your bank accounts for unusual activity
☑ Set up IRS account alerts at irs.gov
☑ File early next year to prevent fraudulent filing in your name

Secure Ways to Share Tax Documents

Method	Security	Notes
Regular email	Low	Interceptable, persists forever
Encrypted email	Medium	Requires both parties to set up
Cloud sharing	Medium	Manage permissions carefully
LOCK.PUB secret memo	High	Password-protected + auto-expiry

When sharing your SSN, EIN, bank routing numbers, or tax credentials with your accountant or tax preparer, create a secret memo on LOCK.PUB. The information is password-protected and expires automatically, leaving no permanent trace.

Identity Theft and Tax Fraud

If you suspect someone has filed a tax return using your identity:

1. File IRS Form 14039 (Identity Theft Affidavit)
2. Report to FTC at identitytheft.gov
3. Contact the three credit bureaus to place fraud alerts
4. Request an IP PIN from the IRS for future protection

The Bottom Line

Tax filing concentrates your most sensitive personal and financial data into a brief window — and criminals know it. Use official platforms only, stay alert for scams, and when you need to share tax documents with your accountant, use secure channels like LOCK.PUB instead of plain email or text messages.