1. What is the IRS Settlement Note and when is it issued?

The IRS Settlement Note, formally designated as "Demonstração de Liquidação de IRS" (IRS Assessment Statement), is the final document that the Tax and Customs Authority (AT) sends to taxpayers after processing their annual income tax return (Model 3). This document details the calculation of the tax due, considering declared income, specific deductions, tax credits, and withholding taxes or advance payments made throughout the tax year. It is, in essence, the definitive statement of accounts between the taxpayer and the State.

The process begins with the submission of Model 3, which occurs annually between 1 April and 30 June, relating to income from the previous year. After submission, the AT proceeds with the validation and calculation of the tax. The issuance of the settlement note typically occurs in July and August. However, in more complex situations or for late submissions, this period may be extended. The note is made available electronically on the Tax Portal (Portal das Finanças), in each taxpayer's personal area, and, in some cases, may be sent by post or electronically to the tax domicile. The date of availability on the Tax Portal is considered the notification date for the purpose of calculating deadlines.

It is fundamental to understand that this note is not merely a proof of submission, but rather the concretisation of an administrative act that can have significant financial implications. Its careful analysis is both a right and a duty of the taxpayer, allowing for the assurance of the correctness of the assessed values and the maximisation of applicable tax benefits.

2. How to interpret the IRS Settlement Note: a detailed guide

The settlement note may seem complex at first glance, but by understanding its main fields, the taxpayer can verify its accuracy. The most relevant elements are:

• Global Income (Rendimento Global): Corresponds to the sum of all gross income declared by the taxpayer and their household, covering various income categories (employment income, pensions, rental income, business and professional income, etc.). This is the starting point for tax calculation.
• Specific Deductions (Deduções Específicas): These are amounts that the law allows to be deducted from the gross income of each category, resulting in the assessable income for each category. For example, for employment income and pensions, there is a specific deduction of €4,104.00 or the value of mandatory social security contributions (if higher), as per article 25 of the IRS Code (CIRS). For business and professional income (Category B), deductions can be complex, depending on the taxation regime (simplified or organised accounting).
• Assessable Income (Rendimento Coletável): Obtained after applying specific deductions to global income. This is the amount on which IRS rates are applied.
• Total Tax Liability (Coleta Total): Represents the gross tax calculated by applying the progressive IRS rates to the assessable income brackets, in accordance with article 68 of the CIRS. This amount is calculated before considering any tax credits or tax benefits.
• Tax Credits (Deduções à Coleta): These are amounts that directly reduce the total tax liability, lowering the tax payable. They include expenses for health, education, property, care homes, expenses for people with disabilities, general family deductions, invoice requirements, and family-type benefits (e.g., large families). Their correct allocation is vital for optimising the final result. The overall limit for these deductions is regulated by article 78 of the CIRS, which establishes maximum ceilings based on the income bracket.
• Net Tax Liability (Coleta Líquida): This is the result of Total Tax Liability minus Tax Credits. This is the final amount of tax actually due.
• Withholding Taxes and Advance Payments (Retenções na Fonte e Pagamentos por Conta): These correspond to tax amounts that have already been paid in advance to the State. Withholding taxes are made, for example, by the employer on salaries or by the paying entity on professional or capital income. Advance payments are tax prepayments made by taxpayers with Category B (business and professional) or H (pensions) income, usually in three instalments.
• Amount to Receive or Pay (Valor a Receber ou a Pagar): This is the final result of the assessment. If the Net Tax Liability is less than the sum of Withholding Taxes and Advance Payments, the taxpayer is entitled to a refund. If it is higher, an additional payment must be made to the AT.

Attention to each of these points is crucial to ensure that no eligible expense has been overlooked or that no income has been incorrectly attributed, which could lead to a higher tax than due.

3. The 5 most common (and costly) errors in the Settlement Note

Experience shows that certain errors frequently recur in settlement notes, resulting in financial losses for taxpayers. Timely identification of these failures can lead to significant savings:

1. Missing or Incorrect Tax Credits: This is one of the most frequent errors. Health, education, property, or care home expenses may not have been correctly communicated to e-Fatura, validated, or migrated to the Model 3 tax return. It is essential to verify that all eligible expenses, such as health invoices with reduced VAT rates or tuition fees, have been considered, under the terms of article 78 of the CIRS.

   Practical Example: A taxpayer with an assessable income of €30,000 and health expenses validated in e-Fatura of €1,000 (with 6% VAT) may be entitled to a deduction of 15% of these expenses, up to a limit of €1,000 or €1,500 depending on the type of expenses and household. If these expenses are not considered, the tax payable will increase by €150 (15% of €1,000).

2. Youth IRS (IRS Jovem) Not Applied or Miscalculated: The Youth IRS regime, provided for in article 12-A of the CIRS, allows for a partial income exemption for young people starting their professional life. This benefit, which in 2026 (income year 2025) remains relevant for those up to 35 years old, allows for the exemption of a percentage of employment income (Category A) or business and professional income (Category B) in the first five years of activity, with maximum limits. Its non-application or incorrect calculation can mean the loss of thousands of euros.

   Practical Example: A 28-year-old who started activity in 2025 with an annual gross income of €20,000. In 2025, the Youth IRS benefit allowed for the exemption of 50% of income in the first year, with a limit of 12.5 x IAS (Indexante dos Apoios Sociais - Social Support Index), approximately €5,500 in 2025. If this benefit is not applied, the young person will pay tax on €20,000, instead of paying on €14,500 (€20,000 - €5,500), which, depending on the tax bracket, can represent a tax increase of hundreds of euros.

3. Incomplete or Unconsidered Withholding Taxes: This situation is common for taxpayers who changed employers during the year, had multiple jobs, or income subject to withholding from different sources. Withholding taxes are advance payments of tax, and if they are not all correctly reported in the tax return or considered in the assessment, the taxpayer will end up paying more tax than due.
4. Outdated Household Composition: Changes in family composition (births, deaths, divorces, shared custody of dependents, de facto unions) have a direct impact on deductions and the family quotient. Failure to update this information in a timely manner on the Tax Portal or incorrect declaration in Model 3 can lead to unfavourable calculations. For example, the attribution of dependents to parents under a shared custody regime generates a deduction of €250 per dependent, divided between both parents (article 78-A of the CIRS).
5. Inadequate Choice of Joint vs. Separate Taxation: For married couples or de facto unions, the law allows choosing between joint or separate taxation. The AT performs an automatic simulation and presents the most advantageous option, but this is not always the one that maximises the tax benefit, especially in years of atypical income or very significant salary differences. It is crucial to simulate both options to ensure the most beneficial choice, as per article 59 of the CIRS.

   Practical Example: A couple where one spouse earns €50,000 annually and the other earns €10,000. Separate taxation can, in some cases, result in a higher total tax than joint taxation, which allows for the benefit of a family quotient that dilutes the higher income across two taxpayers, resulting in the application of lower tax rates. A 2% difference in the marginal tax rate on, say, €10,000 of income, can mean €200 of additional tax.

4. The amount is incorrect: What steps to follow?

When the taxpayer detects a discrepancy in the settlement note, it is essential to act in a structured manner and within legal deadlines. There are three main avenues, with different levels of complexity and implications:

4.1. Substitute Declaration

This is the simplest route and should be used when the error stems from an omission or inaccuracy in the Model 3 tax return submitted by the taxpayer. For example, if you forgot to declare income, an eligible expense, or incorrectly filled in a field. The substitute declaration allows these data to be corrected. The deadline for its submission is, as a rule, 90 days after the end of the legal deadline for submission (30 June), i.e., until 30 September. However, if the original declaration was submitted outside the legal deadline, the substitute declaration can be submitted up to 90 days after the end of the deadline for submitting the original declaration. It is important to check article 59 of the Tax Procedure and Process Code (CPPT) for specific deadlines.

4.2. Administrative Appeal (Reclamação Graciosa)

The administrative appeal is the appropriate means when the taxpayer believes the error lies in the assessment itself carried out by the AT, and not in their declaration. This can happen if the AT did not correctly consider the data submitted by the taxpayer, unduly applied tax rules, or made calculation errors. The deadline for submitting an administrative appeal is 120 days from the notification of the assessment (the date the note becomes available on the Tax Portal), as per articles 68 and 70 of the CPPT. This procedure is free and can be done online on the Tax Portal, in the "Finanças - Contacte-nos" or "Reclamação Graciosa" area. It is crucial to substantiate the appeal with the facts and applicable legal norms, attaching the necessary supporting documents.

Steps for an Administrative Appeal:

1. Detailed Analysis: Compare the settlement note with the Model 3 tax return submitted and with the supporting documents for expenses and income.
2. Error Identification: Determine the cause of the discrepancy.
3. Gathering Documents: Collect all evidence supporting the appeal (invoices, withholding tax certificates, household identification documents, etc.).
4. Online Submission: Access the Tax Portal, select the option for administrative appeal against the IRS assessment, fill in the electronic form, and attach the documents.

Important: The submission of an administrative appeal does not, by itself, suspend the tax payment deadline. However, it is possible to request the suspension of tax enforcement, by providing a guarantee, if the tax payable exceeds a certain amount or if the taxpayer demonstrates that maintaining the assessment causes irreparable harm.

4.3. Judicial Challenge (Impugnação Judicial)

The judicial challenge is the most formal and complex route, to be used when the administrative appeal is rejected or when the taxpayer chooses to appeal directly to the tax courts. The deadline for its submission is 90 days from the notification of the rejection of the administrative appeal or the end of the deadline for its tacit decision (generally, 4 months). This process involves judicial costs and, in most cases, representation by a lawyer. It is advisable for situations of greater legal complexity or significant amounts at stake.

Important Note: The deadline to act counts from the notification of the assessment, and not from the day the taxpayer notices the problem. It is fundamental to pay attention to dates. Additionally, making the tax payment within the legal deadline avoids the application of late payment interest and penalties, and does not prevent the taxpayer from subsequently appealing.

5. Implications for Entrepreneurs and Self-Employed Professionals

The IRS settlement note is not only relevant for employees and pensioners. Sole traders and self-employed professionals (with Category B income), as well as companies as employers, also have reasons to analyse it rigorously.

5.1. Personal Impact for Sole Traders and Self-Employed Professionals

For those with individual activity, withholding taxes and advance IRS payments take on increased importance. The correct allocation of expenses (under the organised accounting regime) or the verification of the coefficient applied to gross income (under the simplified regime) are crucial for a fair tax assessment. Errors in these calculations can lead to excessive tax payable or a lower refund than due. Analysis of the settlement note allows verification of whether:

• Withholding taxes made by clients have been correctly accounted for and reported.
• Quarterly advance payments have been duly considered.
• Under the simplified regime, if the coefficient applied to gross income (article 31 of the CIRS) is correct and if expenses have been duly considered for deduction purposes (e.g., 15% of proven expenses).
• Under the organised accounting regime, if all fiscally accepted cost deductions have been reflected in the declaration.

Just as it is fundamental for companies to verify the corporate income tax (IRC) advance payment, for the individual entrepreneur, IRS verification is equally vital for their personal and business financial health.

5.2. The Employer's Perspective: Optimisation for Employees

For companies, the settlement note of their employees, although a personal document, can indirectly indicate opportunities for improvement in human resources management and internal communication. Employees with incorrectly withheld IRS (for example, by not having updated their family situation or by not having communicated their eligibility for Youth IRS) end up receiving less net salary or having to pay additional tax at the end of the year. This can generate dissatisfaction and impact the perception of remuneration.

• Youth IRS: Companies should be aware of employees eligible for Youth IRS (article 12-A of the CIRS) and encourage them to communicate their situation so that withholding taxes are adjusted, resulting in a higher monthly net salary.
• Withholding Taxes: Raising awareness for the correct updating of data on the Tax Portal and the communication of family changes or additional income is beneficial for employees, ensuring that withholding taxes are the most appropriate for their situation.

A financially more stable and informed team is generally more productive and satisfied. HVR Business Consulting can assist companies in informing their employees about these issues, contributing to well-being and talent retention.

6. Common Errors to Avoid in IRS Preparation and Verification

To minimise the need to rectify the settlement note, it is prudent to avoid the following common errors, both in preparing the declaration and in verifying it:

1. Not Validating Invoices in e-Fatura: Many taxpayers forget to associate pending invoices with the correct categories in e-Fatura, or to validate invoices pending validation. This is a crucial step for expenses to be considered for tax credits. The annual validation deadline generally ends on 25 February of the year following that of the expenses.
2. Not Updating the Household Composition: Failure to communicate changes in the household (births, divorces, shared custody, etc.) to the AT, by 31 December of the year to which the income relates, can result in lost deductions and tax benefits.
3. Not Simulating Joint/Separate Taxation: For couples, prior simulation of joint and separate taxation is vital to choose the most advantageous option, as already mentioned. The AT performs a simulation, but the taxpayer should always verify.
4. Not Verifying Withholding Taxes: It is fundamental to compare the withholding tax amounts in the declaration (and, subsequently, in the settlement note) with the income and withholding tax certificates provided by employers or paying entities.
5. Ignoring the Annexes of Model 3 Declaration: Many errors arise from incorrect completion or omission of specific annexes (e.g., Annex C for Category B income under the simplified regime, Annex D for Category B income under organised accounting, Annex G for capital gains).
6. Not Keeping Supporting Documents: The AT may request, at any time in the following 4 years, the documents that prove the declared income and expenses. Their absence can lead to the cancellation of deductions or the correction of income.
7. Not Consulting a Professional: In cases of greater complexity, such as income from various categories, capital gains, or atypical family situations, consulting a certified accountant or a tax specialist can prevent costly errors and optimise the tax situation.

7. Conclusion and Next Steps

The IRS settlement note is more than a mere formality; it is a document of extreme importance that requires the attention and critical analysis of each taxpayer. Its careful verification can mean the difference between overpaid tax and the recovery of unduly charged amounts. Proactivity in validating invoices, updating data, and understanding the different fields of the settlement note are essential steps for efficient tax management.

We strongly recommend that, upon receiving your settlement note:

• Do not ignore it: Set aside time to analyse it in detail.
• Compare: Cross-reference the values with your Model 3 declaration and your supporting documents (invoices, payslips, etc.).
• Know your rights: Be aware of the deadlines and procedures for submitting an administrative appeal or a substitute declaration.
• Do not hesitate to seek support: In case of doubt or identification of complex irregularities, the support of a qualified professional is invaluable.

At HVR Business Consulting, we understand the complexity of tax legislation and the time taxpayers spend managing their IRS. Our team of certified accountants is prepared to verify your IRS settlement note, identifying potential errors or opportunities for tax optimisation. We have a proven track record in recovering hundreds of euros for our clients, resulting from missing deductions or incorrect calculations.

Do not let the 120-day deadline to appeal expire. Send us your settlement note and your relevant documents. We will analyse your situation based on the numbers and provide you with a clear assessment of the feasibility of filing an appeal, ensuring that your rights are fully exercised and that your tax is correctly assessed.

8. Sources and Legal References

• Código do Imposto sobre o Rendimento das Pessoas Singulares (CIRS) - Personal Income Tax Code
• Código de Procedimento e de Processo Tributário (CPPT) - Tax Procedure and Process Code
• Estatuto dos Benefícios Fiscais (EBF) - Statute of Tax Benefits
• Portaria n.º 255/2023, de 16 de agosto (approves Model 3 declaration and respective filling instructions)
• Decreto-Lei n.º 42/2017, de 25 de abril (e-Fatura regime)
• Specific legislation on the Indexante de Apoios Sociais (IAS) - Social Support Index