A tax record, not a universal property certificate
Does the caderneta predial prove ownership, area and building rights?
No. It records the property as held in the tax matrix, including identifiers, characteristics, matrix holder, areas, use and taxable patrimonial value. It does not replace the land register, a survey or the current municipal planning record.
Use the five-step comparisonChecked against the published sources on .
Page guide · 1 minUnderstand this pageKey points, plain-language terms and useful next steps.
Why this matters
How should I read a caderneta predial in Portugal?
Imagine you need to answer this before deciding what to do next: “Does the caderneta predial prove ownership, area and building rights?” No. It records the property as held in the tax matrix, including identifiers, characteristics, matrix holder, areas, use and taxable patrimonial value. It does not replace the land register, a survey or the current municipal planning record. The simple rule: Treat the caderneta predial as a current tax-matrix record, then compare it with the registry, title documents and mapped or surveyed reality.
What this page helps you do
- Read what is there—and keep its fiscal meaning
- The mismatch tells you who should answer
- A five-step comparison that keeps the systems separate
- Prepare before asking for a correction
- Ask AT about the exact matrix field
Words made simple
- Caderneta predial
- The document evidencing data recorded for a property in the tax matrix.
- Tax matrix
- AT's fiscal property record; it is separate from the land register.
- Tax article
- The identifier used for the property's entry in the tax matrix.
- Matrix holder
- The person shown in the tax record; this is not a substitute for checking registered title.
Questions you may have
- Where can the taxpayer obtain the caderneta predial?
- How long is the caderneta valid?
- Does the matrix holder prove who owns the property?
- Is the area in the booklet the final physical area?
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Read what is there—and keep its fiscal meaning
Official Tax Authority guidance says the taxpayer can obtain the booklet free through the Tax Portal and that it is valid for 12 months.
Property and tax-article identification
Use the article and location fields to match the booklet to the property under review. Similar names or locations are not enough; compare the identifiers with the registry and transaction documents.
The matrix holder
The named holder shows who appears in the tax matrix. It matters for the fiscal record, but registered title must be checked in the current land-registry certificate.
Recorded areas and characteristics
These fields describe what AT holds. Compare them with the title, registry and site evidence; a number in the booklet does not position a contested boundary.
Recorded use or allocation
This is a tax-matrix field, not a municipal approval of present use or construction. Ask the municipality about the planning file and applicable use document.
Taxable patrimonial value (VPT)
VPT belongs to the tax record. This guide does not turn it into a market valuation, final transaction tax or evidence of planning rights.
The mismatch tells you who should answer
Tax field differs
The booklet appears wrong
Document the field, the comparison source and the supporting evidence. AT maintains the matrix and receives claims about incorrect matrix data; a matrix correction does not correct the land register.
Which exact field is disputed, and what evidence supports the requested matrix correction?
Title or holder differs
The certificate and booklet do not agree
Compare both with the title documents. The Land Registry handles registry content and procedures; AT handles the tax matrix. Do not ask one system to silently overwrite the other.
Is the discrepancy fiscal, registral, or present in the underlying title?
Area or shape differs
The documents and land do not align
Use BUPi or applicable cadastre and suitable technical evidence to investigate geometry. Neither the booklet nor a map printout alone resolves an overlap or contested boundary.
Do you need a record comparison, an approximate measurement or a formal survey for a defined purpose?
A five-step comparison that keeps the systems separate
Obtain the current caderneta
Use the Tax Portal record for the correct taxpayer and property; check its issue date and identifiers.
Compare the current registry certificate
Place description, holders, areas and relevant entries side by side without assuming that either record proves physical geometry.
Read the title documents
Use the deed or other supporting title to understand the documentary basis behind the two records.
Check mapped and physical reality
Add the applicable cadastral or BUPi representation and a site check or survey when area and boundaries affect the decision.
Submit each correction to its authority
Send a matrix claim with evidence to AT, registry issues to the Land Registry and geometry questions through the applicable BUPi, cadastral and technical route.
Prepare before asking for a correction
- Current caderneta predial with issue date
- Current permanent land-registry certificate
- Deed or other title documents relied on
- Applicable cadastral or BUPi/RGG representation
- Photographs, marked plan and survey evidence where relevant
- Field-by-field table of identifiers, holders, area, use and values
- Evidence supporting each requested change, kept separate by authority
Ask AT about the exact matrix field
For this tax article, what data is currently recorded in the property tax matrix, which procedure and evidence apply to the identified incorrect field, and what part of this request falls outside AT because it concerns the land register or physical geometry?
Attach the current booklet, identify the property and list the conflicting document or physical evidence. Registry and geometry corrections remain separate.
Caderneta terms in plain language
- Caderneta predial
- The document evidencing data recorded for a property in the tax matrix.
- Tax matrix
- AT's fiscal property record; it is separate from the land register.
- Tax article
- The identifier used for the property's entry in the tax matrix.
- Matrix holder
- The person shown in the tax record; this is not a substitute for checking registered title.
- VPT
- Valor patrimonial tributário, the taxable patrimonial value recorded for tax purposes.
What the booklet does not prove
- Not registered titleA matrix holder is not a replacement for the current land-registry certificate and supporting title.
- Not exact physical geometryRecorded area does not locate a disputed boundary or resolve an overlap.
- Not planning classification or permissionTax use and labels do not decide municipal land classification, lawful use or buildability.
- Not a correction guaranteeAT decides a matrix claim on the applicable procedure and evidence; this guide cannot predict acceptance.
What this page cannot prove
Tax-record guidance, not property certification
This page does not confirm that a particular caderneta is correct, prove ownership or boundaries, determine planning status, calculate final tax or guarantee a correction. The competent authority must assess each record and the evidence submitted.
Common questions
The questions people usually ask next
Where can the taxpayer obtain the caderneta predial?
Tax Authority guidance says the taxpayer can obtain it free through the Tax Portal's property-assets consultation. A Tax Office route is also described subject to the applicable arrangements.
How long is the caderneta valid?
Official Tax Authority guidance states 12 months. Still confirm the issue date and obtain a current copy before relying on its fields.
Does the matrix holder prove who owns the property?
No. Check the current land-registry certificate and title documents. The matrix and register serve different functions.
Is the area in the booklet the final physical area?
Do not treat it that way. Compare it with the register, applicable cadastre or RGG and the site; use a suitable survey when the physical area matters.
Does a rustic or urban tax description decide what can be built?
No. A tax description is not the municipal planning classification or a permission. Check the current plan and ask the competent municipality about the defined proposal.
Who corrects an incorrect field?
AT handles matrix data through its procedure and evidence requirements. The Land Registry handles registry issues, while geometry may require BUPi, cadastre and technical evidence.
Primary sources
Check the official material
These links support the central explanation. Open the original source when you need the current detail.
- Current Tax Authority property bookletAutoridade Tributária e Aduaneira
Official source used for this guide. Open it to check the current scope, wording and date.
- Os meus direitos e deveres como proprietário de um prédioAutoridade Tributária e Aduaneira
Official source used for this guide. Open it to check the current scope, wording and date.
- CIMI — Artigo 93.º: Cadernetas prediaisAutoridade Tributária e Aduaneira
Official source used for this guide. Open it to check the current scope, wording and date.
- Registry certificate and evidence of physical factsJustiça.gov.pt
Official source used for this guide. Open it to check the current scope, wording and date.
- Obtain the tax booklet and submit a claim about incorrect matrix data to the Tax Authority with suitable evidence.Autoridade Tributária e Aduaneira
Official source used for this guide. Open it to check the current scope, wording and date.
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