Questione giuridica chiave
Whether the fire-protection component of the building-insurance premiums was exempt from stamp duty under the ESTV's 1996 assurance and the insurer's bookkeeping practice.
Decisione estratta
The insurer met the conditions communicated in the 28 October 1996 letter; the fire-protection charges were sufficiently separated in the accounts and could not later be charged again on a stricter basis.
Motivazione estratta
The ESTV had set the relevant conditions in advance, and the insurer was entitled to rely on them under good faith. The bookkeeping showed a clear, economically sensible separation between premiums and fire-protection charges; an individual booking for each payment was not required by the communicated conditions and could not be imposed retroactively.