For some reason my former employer did not withhold any taxes from my paycheck last year. how can I avoid this in the future? did I fill out my w-4 incorrectly?

[fanfare · Accepted solution]

After submitting your W-4 to your new employer, check your next payroll stub to see if things look reasonable.

If not, take corrective action immediately 

[TimM]

It sounds like you're right, the w4 might need to be changed. Here's a calculator that can help guide you on how to change it: https://turbotax.intuit.com/tax-tools/calculators/w4/