Pet-related fees across German accommodation generally fall into the same categories found elsewhere in Europe: a one-time cleaning fee (Endreinigung), a per-night or per-stay charge, or occasionally a refundable deposit. A Ferienwohnung leans toward a flat one-off fee more often than hotels do, which more commonly add a per-night charge instead.

Germany has no single national law requiring pet fees to be posted in a standard format, so it's worth asking directly rather than assuming a listing's silence means no fee. A quick message to the host, campsite or hotel before booking is the reliable way to confirm the figure.

Refundable deposits specifically for pets are relatively uncommon in mainstream German accommodation, appearing more often at higher-end hotels or larger Ferienwohnungen. Get the figure confirmed in euros and in writing before arrival, since an informal verbal estimate can differ from what actually appears on the final bill.