Fiscal Calendar Portugal 2025: Essential Dates for Businesses

Stay on top of key tax deadlines with the Portugal Fiscal Calendar 2025 to ensure your business remains compliant. INLIS Consulting simplifies fiscal management and ensures timely submissions for taxes like VAT, IRS, IRC, and more.

Who Should Use a Fiscal Calendar?

This fiscal calendar is designed for:

Maximizing the Use of Your Fiscal Calendar

To ensure timely compliance with tax deadlines:

Set Automatic Reminders: Program alerts for crucial dates, such as VAT payments and withholding tax submissions.
Utilize Accounting Software: Employ certified accounting tools to calculate and submit tax declarations automatically.
Define Internal Processes: Ensure that all team members are aware of tax obligations to prevent delays.

Implementing these strategies will aid in better payment planning, avoidance of fines, and assurance of continuous compliance with the Tax Authority (AT).

Primary Taxes and Declarations in Portugal

Understanding the main taxes and their associated deadlines is vital for effective fiscal management:

1. VAT (Value-Added Tax)

VAT is levied on the sale of goods and services. Businesses under the standard VAT regime must submit periodic declarations:

Frequency

When to Submit

Monthly

If annual turnover exceeds €650,000.

Quarterly

If annual turnover is below €650,000.

2. Corporate Income Tax (IRC)

Applied to companies' taxable profits, the IRC requires the annual Modelo 22 tax return, typically due by May 31. Advance payments are also expected throughout the year.

3. Personal Income Tax (IRS)

Companies must withhold and submit IRS monthly for payments made to employees and service providers. Freelancers are responsible for their own annual income declarations.

4. Stamp Duty (IS)

This tax applies to various transactions, contracts, and operations not subject to VAT, such as rental agreements and certain financial transactions.

5. Monthly Payroll Declaration (DMR)

All businesses must submit the DMR, reporting salaries, fees paid with tax withholdings, and Social Security contributions.

Important: In Portugal, all invoices must be issued using software certified by the Tax Authority (AT).

6. Stamp Duty Declaration (DMIS)

The DMIS is used to report and settle Stamp Duty for transactions and operations not covered by VAT.

2025 Tax Obligations - Monthly Deadlines

Below is a breakdown of key monthly tax deadlines for 2025:

January

Deadline	Tax/Action
Until the 5th	Submission of the SAF-T file (electronic invoice reporting to the Tax Authority).
Until the 10th	DMR (Monthly Payroll Declaration): Reporting of salaries and payments made in the previous month.
Until the 20th	IRS-IRC (Payments of amounts withheld at source).
Until the 25th	VAT (Payment under the monthly regime).
Until the 31st	IUC (Single Circulation Tax for recreational boats and aircraft).

February

Deadline	Tax/Action
Until the 20th	IRS-IRC (Payments of amounts withheld at source).
Until the 25th	VAT (Payment under the monthly regime).
Until the 26th	VAT (Payment under the quarterly regime).

Note: Deadlines for subsequent months follow a similar pattern, with specific dates for each tax obligation. For a detailed monthly breakdown, refer to the official Tax Authority communications.

How INLIS Consulting Assists with Fiscal Compliance

At INLIS Consulting, we understand that navigating fiscal obligations can be complex. Our services are designed to simplify this process:

Service	Description
Certified Accounting	Our team ensures accurate and timely financial reporting, keeping you compliant with all tax obligations.
Invoicing Solutions	We provide certified invoicing systems that align with AT requirements, ensuring all your invoices are compliant.
Expense Management	Our tools help track and manage expenses efficiently, aiding in accurate tax reporting.

By partnering with INLIS Consulting, you can focus on growing your business while we handle the intricacies of fiscal compliance.

Conclusion

Staying informed about the fiscal calendar and meeting tax deadlines is essential for the smooth operation of your business in Portugal. Utilizing tools like a fiscal calendar, setting reminders, and leveraging professional services can significantly ease this process.

INLIS Consulting is committed to supporting businesses in maintaining fiscal compliance, allowing you to concentrate on what matters most—growing your business.

For more insights and assistance on fiscal matters, feel free to contact us