Married or married but filing separately in this situation

If I as the husband made 105,000 last year and my wife only made 15,000. Is it still best to file “jointly” or married but filing separately? 

 

We both live together, pay mortgage on our house and typically have filed jointly in the past. We usually take deductions, mortgage interest, etc. I have a home office, etc. We have no children. NO dependents.

 

just wondering if we won’t have to pay as much one way or the other.

 

Dale