Very Large increase in 2018 Taxes

Is anyone else noticed a huge increase in their taxes for 2018?  I have been getting substantial tax refunds for the last 30 plus years, consistently.  Last year was no exception.  So in 2018 I increased my 401K contributions by 10% and I got a 2% pay increase as well with no change in filing status.  One would think I would have done better this year and got at least an equal tax refund to last year's.  But behold I started working my 2018 taxes in Turbo tax this week and I see a 20K increase in my taxable income.  This change is the most monstrous change I have ever seen.  Is this a result of the new tax laws?  This increase has resulted in me actually have to pay taxes this year. So I went from getting a 3K plus refund last year to this.  So again I ask again, is anyone else seeing this much change or is Turbo Tax just wrong?