Buyer’s Q&A

Fractional ownership glossary — key terms

Core fractional terms: 1/8 share, property-specific LLC, SPV, operating agreement, rotation, special assessment, reserve fund, owner's closet, supported resale, fideicomiso, IFI, Lex Koller, NIE. Quick reference for new buyers.

Updated 3 June 2026700 words · 4 min read

The short answer: Core fractional ownership terms every buyer should know. 1/8 share: standard share size giving ~45 days of personal use per year. Property-specific LLC / SPV: the corporate entity holding one home; ring-fences ownership and liability. Operating agreement: the rulebook governing how the LLC operates and how owner decisions get made. Rotation: the multi-year cycle allocating peak weeks fairly across owners. Special assessment: pro-rata capital call for major repairs exceeding reserve fund. Reserve fund: LLC-held savings for major future repairs. Owner's closet: lockable storage for each owner's personal items. Supported resale: operator-handled resale process. Fideicomiso: Mexican bank-trust required for foreign coastal ownership. IFI: French wealth tax above €1.3M of French real estate. Lex Koller: Swiss restrictions on foreign property ownership. NIE: Spanish foreign tax identification number.

Core fractional ownership terms

TermDefinition
1/8 shareStandard fractional share size; one-eighth of LLC equity; ~45 days of personal use per year
Property-specific LLCThe corporate entity holding one specific home; one LLC per property; ring-fences ownership and liability
SPV (Special Purpose Vehicle)Same concept as property-specific LLC under a different name
Operating agreementThe LLC's rulebook — governs operations, owner decisions, voting thresholds, resale process, dispute resolution
Membership registerThe LLC's documented record of who owns which shares
Membership interestThe deeded ownership stake in the LLC that constitutes the fractional share
Rotation cycleMulti-year (typically 8-year) cycle allocating peak weeks fairly across all owners
Priority windowThe booking window during which a specific owner has first-priority access to specific weeks per the rotation
Allocated weeksThe ~45 days per year a 1/8 share entitles the owner to use
Owner's closetDedicated lockable storage space at the property for each owner's personal items
Annual feeEach owner's pro-rata contribution to the LLC's annual operating costs
Reserve fundLLC-held savings pool funded from annual fees for major future repairs
Special assessmentPro-rata capital call on owners for major repairs exceeding the reserve fund
Cost pass-throughFee structure where the operator charges actual cost of operational items (utilities, taxes) without margin
Supported resaleOperator-handled resale process — operator markets, finds buyer, handles documentation
Service feeThe operator's one-time fee at original purchase covering acquisition, structuring, marketing

Country-specific terms

TermCountry / Definition
SCIFrance — Société Civile Immobilière; standard French property-holding company
SL / Sociedad LimitadaSpain — Spanish limited company; standard for Spanish fractional
SRLItaly — Società a Responsabilità Limitata; Italian equivalent of LLC
LDAPortugal — Sociedade por Quotas; Portuguese limited company
IFIFrance — Impôt sur la Fortune Immobilière; French wealth tax above €1.3M of French real estate
IMUItaly — Imposta Municipale Unica; Italian municipal property tax
IBISpain — Impuesto sobre Bienes Inmuebles; Spanish local property tax
PatrimonioSpain — wealth tax with regional variations
FideicomisoMexico — bank trust holding property title for foreign owners in coastal restricted zone
Hak PakaiIndonesia — right-of-use leasehold-equivalent for foreign ownership
Lex KollerSwitzerland — federal law restricting foreign property ownership
NIESpain — Número de Identificación de Extranjero; foreign tax ID required for Spanish ownership
SDLTUK — Stamp Duty Land Tax; payable at property purchase (not on fractional share transfer)
NHRPortugal — Non-Habitual Resident; tax regime largely scaled back in 2024
Beckham LawSpain — preferential tax treatment for qualifying new Spanish tax residents
Schengen 90/180EU — rule limiting non-EU visitor stays to 90 days in any rolling 180-day period

Investment and structural terms

TermDefinition
TIC (Tenancy in Common)Legal structure where multiple owners hold direct undivided interests in real estate (alternative to LLC fractional)
Cap rateNet operating income divided by property value; not commonly used for fractional given lifestyle-dominant returns
Days-to-resaleAverage time from share listing to closed sale; key operator-quality metric
Subscription ratePercentage of available shares currently sold for a given property
Right of first refusalOperator's option in some operating agreements to match third-party offers on resale
Cooling-off periodStatutory window (typically 7-14 days) during which a buyer can withdraw without penalty

Where to learn more

Co-Ownership Property's FAQ library includes detailed explainers for each of these terms in standalone pages.

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