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    I want to start my own business: where do I begin?

    4 min read
    abertura de empresaempreendedorismocontabilidadepmefiscalidade
    I want to start my own business: where do I begin?

    Starting a business is one of the most important steps in any entrepreneur's life. But between the idea and the first day of operations, there are decisions and formalities that can seem daunting - especially for first-timers. This guide was designed to help you navigate that process with clarity and confidence.

    What type of company is right for you?

    The first major decision is choosing the legal structure of your company. In Portugal, the most common options for those starting out are the Limited Liability Company (Lda.) and the Single-Member Limited Company, the latter suited for solo entrepreneurs. If the project involves multiple partners with ambitions for faster growth, a Public Limited Company (S.A.) may make sense, though it involves more demanding requirements.

    There is also the option of operating as a Sole Proprietor (ENI), a simpler structure that does not separate personal from professional assets - a risk worth considering.

    The right choice depends on the number of partners, available capital, the liability you're willing to assume, and the type of business you plan to develop. A decision worth making with professional support.

    How much capital do I need to start?

    For a Limited Liability Company, the minimum share capital is just €1 per partner, although it's advisable to set up the company with capital that minimally reflects the business reality - both for credibility with clients and suppliers, and to ensure some operational margin in the first months.

    How to register the company?

    Registration can be done in two ways. The fastest option is the Empresa na Hora (Company in an Hour) service, available at IRN counters across the country, which allows you to set up a company in a single day using pre-approved firm names. Alternatively, you can opt for online incorporation through the Business Portal, or use a notary for greater customization of the articles of association.

    The essential steps include:

  1. Choosing and approving the company name
  2. Drafting the articles of association
  3. Depositing share capital
  4. Commercial registration
  5. Registration with the Tax Authority
  6. What tax and accounting obligations arise from the start?

    After incorporation, the company needs to register with the Tax Authority and obtain the NIPC (Legal Entity Tax Identification Number). It's also necessary to start activity with the Tax Authority, indicating the CAE - Economic Activity Codes - corresponding to the business.

    From an accounting perspective, all companies are required to have organized accounting from day one, which means working with a certified accountant. Ignoring this obligation can result in fines and tax complications nobody wants to face during the startup phase.

    Social Security: don't forget the managers

    Paid managing partners are required to register with Social Security as self-employed or employed workers, depending on the situation. This is an area frequently overlooked during incorporation, but one that can generate debts and penalties if not addressed from the start.

    Other aspects not to ignore

    There are practical issues many new business owners only discover once the company is already running:

  7. The need to issue electronic invoices from day one
  8. The obligation to have a complaints book (physical or electronic, depending on the sector)
  9. Specific licensing requirements for certain activities
  10. The importance of opening a business bank account separate from personal finances
  11. Depending on the sector, you may also need permits, municipal licenses or specific certifications before starting operations.

    The most common mistake beginners make

    Underestimating the costs and obligations of the first months. Between registration, accounting, insurance, licenses and initial operational investments, startup costs add up quickly. Having a realistic financial plan - even a simple one - makes all the difference between a smooth start and survival mode.

    Take the first step with the right partners

    Starting a business is just the beginning. What ensures long-term success is having professionals by your side who know the legislation, anticipate problems and help you make the best decisions at each stage of growth.

    At Grupo Your we support businesses from incorporation to maturity. If you're thinking of starting your company and want to do it right, get in touch - we're here to make the process simpler and safer.

    Read also

  12. Tax Advisory: the partner SMEs cannot ignore
  13. Social Security Payment Deadlines in Portugal
  14. Tax Calendar 2026: All Dates and Deadlines Your Business Needs to Know
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