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CGDMTR instructions

Instructions for completing all 4 sections of the Combined global and domestic minimum tax return (CGDMTR) online form.

Last updated 4 August 2026

Section 1: Client information

Instructions for completing Section 1 of the CGDMTR.

Section 2: Group entities and combined return

Instructions for completing Section 2 of the CGDMTR.

Section 3: Local and foreign lodgment notification

Instructions for completing Section 3 of the CGDMTR.

Section 4: Lodgment summary

Instructions for completing Section 4 of the CGDMTR.

CGDMTR Appendix

Appendix and glossary for the Combined global and domestic minimum tax return (CGDMTR) online form.

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