The state tax was rejected because TurboTax needs a program update to update county rates. Where can I do this update?

@samanthalkerr 

You don't  (unless you are using the Desktop/Download software.)

Online software updates are automatic  Once they Fix The Problem

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Assuming this is for "Indiana".........It may take a few more days (or a week) to correct this, the tax software was overcharging you certain County taxes.

...sign up for notification on when it's fixed here:

Why am I getting an error for Indiana Schedule IN-W line 26? (intuit.com)

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When it gets fixed in the software, you should run thru your Indiana tax return Q&A again, and then the error checks, and if clear after error checks, try to e-file it again.

Never file early...let others find the software problems.

Mid-Feb to March is safer.