In TurboTax Online, when you are amending your state return and adding or updating state information on your W-2, the program automatically saves your entries when you select Continue or Done after entering the data.
Make sure after updating boxes 15–17 for state code, state wages, and state tax withheld, you click Continue until you return to the W-2 Summary screen. Leaving the screen without continuing may cause the information not to save.
If the information still doesn't save, try clearing your browser cache or using a different browser and repeat the steps.
Do you want me to guide you through the exact steps to update and save your W-2 state info during a state amendment?
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