If you enter an amount different than what is on your 6475 then the IRS may delay processing for an extended period of time. If you don't care about that then you should definitely go ahead and enter the amount that you actually received for the year. That is the correct amount and what the IRS should have in their records and if they investigate then it is what they will find that they actually issued to you.
Putting the correct amount in the return may not delay your return as well. Because you know what you actually received there may be a second 6475 coming with the difference on it.
Either way you can log on to your online account and double check the amount that the IRS shows that you received. Log in or create an account here.
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