Yes, that's correct. You should also have an amount in Box 7 and/or Box 8 of the W2 for the tipping job.
The combined amount of Box 7 and Box 3 will be the total of your social security wages. If you add those two boxes together and multiply by .062 this should give you the amount in Box 4. (see image attached)
You can go directly to the area to enter your W2 in TurboTax online
1. Sign into your account and select your current return.
2. Select My Account on the top right and then select Tools
3. Select Topic Search (see attached image)
4. Search for W2 and select Go
5. Follow the interview to enter your information.
You can go directly to enter the information using these steps either TurboTax desktop.
1. Search box in the upper right
2. Search for W2
3. Jump to W2 (see image attached)
4. Edit the W2 for change
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.