My loved one passed away already. Is it still possible to obtain refunds in this case?

Yes. If his death occurred during the past ten years its possible that any credits he may have benefited from while he was alive may now be passed on to his estate. Though he has passed away, it is still possible that his tax files be re-evaluated to include health-related tax credits that he should have applied for while he was alive. Families often discover this fact when an opportunity allows them to do so after the trying times of illness.