What’s a control number? Mines is blank!

whitek0301 · ‎April 15, 2026

Control number

xmasbaby0 · ‎April 15, 2026

Then leave it blank in the software. The IRS does not require you to enter a control number from your W-2.

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**

Karis_F · ‎April 15, 2026

The control number is an optional code on a W-2 that is mainly used for importing a W-2. As xmasbaby0 said, you can leave that field blank on your W-2.

To enter a W-2 in TurboTax Online:

1. Go to Income>Wages and Salaries from the left menu

2. Select Start/Edit next to Wages and Salaries (W-2)

3. Enter your W-2 information

If you need extra time, filing an extension by April 15, 2026, moves your submission deadline to October 15. But remember any taxes owed are still due in full by the original April 15 date.

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What’s a control number? Mines is blank!