The new standard deduction will be in effect when you prepare your 2018 tax return next year in 2019.
2017 Standard Deductions
Single $6350 (65 or older + $1550)
Married Filing Separately $6350 (65 or older + $1250)
Married Filing Jointly $12,700 (65 or older + $1250@)
Head of Household $9350 (65 or older + $1550)
https://turbotax.intuit.com/tax-tips/irs-tax-return/2017-tax-reform-legislation-what-you-should-know...