how can i see on my amended return what makes up the change in income. It changed more than what I added. Is it the taxable amount of social security that changed?

When you amend your return TurboTax updates the Form 1040 in addition to creating Form 1040-X, even though the updated Form 1040 is not really part of the amended return. Compare the updated Form 1040 line by line to your saved copy of the original Form 1040 that you filed. That will show you which income items increased.

We can't see your tax return, but it is very common for additional income to make more of your Social Security taxable, so that could very likely be the cause of what you are seeing. Comparing the taxable Social Security amount on Form 1040 line 6b before and after adding the income will show you that.

If you need more help, it might be useful to know whether you are using TurboTax Online or the desktop TurboTax software.

You can see the difference in your income from your original Form 1040 and your Amended Form 1040-X by reviewing the income in column B:

We're unable to see your tax return in this forum, but your taxable social security income depends on your total income.  If you are single and made between $25,000 and $34,000 last year, up to 50% of your Social Security is taxable.  If you made more than $34,000, you'll pay taxes on up to 85% of your Social Security. When you enter all of your income, TurboTax will calculate the taxable portion of your Social Security. (Half of your social security benefits are included in the base.)

Refer to the TurboTax articles Is my Social Security income taxable?, How does receiving Social Security affect my taxes? and When Does a Senior Citizen on Social Security Stop Filing Taxes?

@psharonmarie