Florida has no state income tax return requirement. But that doesn't change your federal obligation. If you earned income — from W-2 wages, self-employment, investments, retirement distributions — you're required to file a federal return when your income exceeds the filing threshold.
When you don't file, the IRS eventually files a Substitute for Return for you. They calculate your tax using only the income reported to them by third parties, with zero deductions, zero credits, and the most unfavorable filing status. The resulting balance is almost always significantly higher than what you'd actually owe.
Getting Back on Track
File the missing returns. Even years late, filing your own return replaces the SFR and typically reduces the balance dramatically. You won't get refunds for returns filed more than three years late, but reducing the balance owed is almost always worth it.
If you have multiple years of unfiled returns, let me help. Getting into compliance is the first step to resolving everything else.