Pensions

Can my pre-tax contributions to my pension plan made in my home country be considered pre-tax contributions under German tax law?

This depends on your home country and should be discussed in your personal meeting.

Can employer contributions to my pension plan, that are made tax-free in my home country, be considered tax-free contributions under German tax law?

This is dependent on your home country, the level of contributions, and/or the type of pension plan.