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My 2017 Fed deductions are 3x more than the 2018 Fed deductions. I know mortgage interest has changed but I cannot see why so large a difference.
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Check for data entry errors, especially commas and decimals.
Did you have some special deduction in 2017, such as a one time medical expense? Also be aware that, for 2018, state/local/property/sales taxes are capped at $10,000. Also see:
https://www.cbsnews.com/news/9-tax-deductions-individuals-can-no-longer-claim-for-their-2018-taxes/
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