Business Plan and Taxation: The Comprehensive Guide for Portugal

By Hugo Ribeiro, Certified Accountant · Member of the Order of Certified Accountants · HVR Business Consulting

Introduction: The Strategic Relevance of the Business Plan in 2026 In the current Portuguese economic landscape, marked by increasing volatility and dynamic taxation, the preparation of a Business Plan has ceased to be a mere academic exercise to become the pillar of survival for any business project. Whether for a liberal professional operating within the scope of IRS (Personal Income Tax) or for a technological startup, rigorous planning is what differentiates success from tax non-compliance. In 2026, with the full digitalization of the Tax Authority, the consistency between business project…

Key Takeaways

• Always integrate TSU and social charges into the real cost of employees.
• Assess if the simplified IRS regime is more advantageous than accounting.
• Separate VAT from operational cash flow to avoid treasury ruptures.
• Use EBF tax benefits to reduce the tax payable.

FAQ

What is the 0.75 coefficient in IRS?

It is the percentage of income taxed under the simplified regime for services, assuming 25% as expenses.

How does VAT affect my Business Plan?

VAT impacts cash flow; you must project the difference between VAT collected from customers and paid to suppliers.

When should I choose organized accounting?

When your real business expenses exceed 25% of the gross income earned.

Why is the CAE important in a business plan?

The CAE defines the applicable VAT rules and the taxation coefficients for IRS purposes.