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The Portuguese condominium budget, explained: quotas, reserve fund and how it all gets approved

By Edmund Leung · Updated: 28 August 2026

Every year your building approves a budget — and every month you pay a quota toward it. Yet most owners have never actually read the document. Here is what's inside, in plain terms.

The three numbers that matter

A typical condominium budget has three layers:

How your quota is calculated

Your share is not arbitrary. Each unit carries a per-mille weight — a number out of 1,000 recorded in the building's founding deed, reflecting the unit's relative value. Multiply the annual budget by your unit's weight, divide by 1,000, and you have your annual quota; divide by twelve for the monthly amount. Two identical-sounding apartments can pay different quotas because their weights differ.

Proposed is not approved

A budget starts life as the administrator's proposal. It only binds owners once the general assembly votes to approve it — sometimes with changes. When you look up "the budget", check which document you're reading: the proposal PDF or the approved figure in the assembly minutes. They can differ, and the minutes win.

Questions worth asking every year

All of these answers live in documents your building already has: budget PDFs, accounts reports and assembly minutes. The hard part has never been the information existing — it's finding it.

Related guides: Condominium fees in Portugal · Reading the meeting minutes

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Legal references: Portuguese Civil Code, art. 1424.º (sharing of common expenses); Decree-Law 268/94 (reserve fund).

This guide is general information, not legal advice. Rules vary by country and by each building's own constitutive title and regulations.