If I was able to enter child support payments I received , where do I put them this year. Dont see section this year to put them.

[xmasbaby0]

Child support is not taxable; you do not enter child support received in the income section on your tax return.  The only place you may want to enter it is for the sales tax deduction.

SALES TAX

You can enter the sales tax you paid  in 2018 by going to Federal>Deductions and Credits>Estimates and Other Taxes Paid> Sales Tax.  

Sales tax is an itemized deduction.  If your state has a state income tax, you have to choose between using the deduction for your state tax paid OR the sales tax deduction, whichever is higher.  The TT process will suggest one or the other as you prepare your return.   Under the new tax law, there is a $10,000 cap on the total of sales tax, and state and local taxes (SALT) that you can use.

“Major purchases” that you can enter for the sales tax deduction include:

Motor Vehicles (cars, trucks, motor homes, RV’s, sport utility vehicles and off-road vehicles

Aircraft or boats

Mobile homes

Manufactured housing

Building materials for major home improvements

You cannot deduct: furniture, jewelry, home electronics such as TV’s or computers

https://ttlc.intuit.com/questions/1901222-which-deduction-should-i-choose-sales-tax-or-income-tax

https://ttlc.intuit.com/questions/2566624-how-much-sales-tax-did-i-pay-last-year

https://ttlc.intuit.com/questions/3148443-how-do-you-define-major-purchase-or-major-item-for-the-sal...

https://ttlc.intuit.com/questions/1900791-how-do-i-find-my-local-sales-tax

https://ttlc.intuit.com/questions/2566624-how-do-i-calculate-my-sales-tax-from-2017

[Hal_Al]

Child support is not reportable or taxable. It is also not "earned income", so it does not qualify you for the child based refundable tax credits (the Earned Income Credit and the Additional Child Tax Credit).