Every year up until now, I received a refund from NY, this year, we owe over 6,000?

What is usually the main reason why would now ow  NY State over 6,500.00, when for over 30 years, we've always received a refund. Is it because of an increase in salary by my spouse (about 7,000 more than last year) ? Or taking over 20,000 from my pension plan (IRA rollover) to for my dog,  who last year had a huge amount of medical problems? When taking money from our IRA, taxes are taken out with each disbursement.  Nothing else has changed from the previous years. In fact, about 20 years ago, we redid our kitchen and the amount taken from our IRA was greater than last year's, and we still received a state refund. Thanks - I know the question sounds a bit air-headed, but we're shaken up by this.