German phrase
Ich möchte ~ nachmelden.
Meaning
I would like to register ___ retroactively
When to use it
Used to report changes late. It sounds polite and suits official procedures.
Example dialogue
Ich möchte meinen Umzug nachmelden.
I would like to register my move retroactively.
Okay, seit wann gilt die neue Adresse?
Okay, when did the new address take effect?