Do I include my spouse's children as dependents on our return?

[TurboTaxHeba]

No, only your children.

If you are filing your return and your spouse's return together > the software will add the appropriate spousal credits on both of your returns if eligible.

If you are filing a separate return for yourself > add your spouse as a Spouse not as a Dependant under the personal information profile.  

I hope this was helpful