How to start investing from scratch

Starting to invest is intimidating more from lack of knowledge than from real difficulty. You do not need to pick the trendy stock or watch the market daily; you need a simple plan and to stick with it over time. This guide sums up the essential steps to get going from scratch in an orderly way.

1. Before investing: emergency fund and debts

Before putting a single euro into investments, cover two things: an emergency fund of 3 to 6 months of expenses in a liquid account, and expensive debts (credit cards, consumer loans). No reasonable investment safely beats the cost of a debt at 15-20%. Clearing that debt is the best guaranteed "return" there is.

2. Define your goal and your horizon

Saving for a home down payment in 3 years is not the same as saving for retirement in 30. The more distant the goal, the more risk (and more compound-interest potential) you can take on. For short-term goals, prioritize safety; for the long term, time is on your side. You can see the effect in the compound interest calculator.

3. Know your risk profile

Your risk profile is how much volatility you can handle without losing sleep or selling in a panic. If a 30% drop would make you run, a 100% equity portfolio is not for you. What matters is not maximizing theoretical return, but choosing a portfolio you can stay invested in during the bad years, which is when you really win or lose.

4. Index funds and ETFs: the simple route

For most beginners, diversified index funds and ETFs are the most reasonable option: they replicate a broad index (such as the MSCI World or the S&P 500), have very low fees and do not require picking stocks one by one. Accumulation funds reinvest dividends automatically, letting compound interest work without you having to do anything.

5. Diversify and contribute periodically

Diversifying (spreading across many companies, sectors and countries) reduces the risk that one bad result sinks your portfolio. And instead of trying to time the market, invest a fixed amount every month (what is called dollar cost averaging): you buy more units when prices fall and fewer when they rise, smoothing your entry. Work out your plan in the savings calculator.

6. Hidden costs: fees, taxes and spread

A 1 % difference in fees sounds like nothing — and yet, compounded over 30 years on a portfolio of €100,000, it eats roughly €60,000 of final capital. The three main drags to watch: management fees (an active equity fund charges 1.5–2 % a year; a global index fund, 0.05–0.30 %), taxes on capital gains (in Spain, 19 % up to €6,000, 21 % up to €50,000, 23 % up to €200,000, 27 % up to €300,000, 28 % above), and the bid-ask spread on the broker side (negligible on liquid ETFs, significant on small bond funds). Test all three on the compound interest calculator: enter your scenario with 0 % commissions, then your real fee, and look at the gap.

7. Where to actually invest: brokers and platforms in Spain

For most beginners in Spain the simplest path is a fondo de inversión at a low-cost manager (Indexa, MyInvestor, Finizens, openbank/Andbank with their indexed range): traspaso fiscal — moving money between funds with no tax — and zero broker commissions. For ETFs you need a broker: Interactive Brokers, Degiro and Trade Republic are the usual options, with low fees but more reporting work at IRPF time. Don't let "the perfect broker" become the excuse not to start. Open the account that is good enough, set up the recurring contribution, and worry about optimising the fee structure later.

8. When NOT to invest: warning signs

Investing is not always the right move. Skip it (or pause it) if: you have credit card debt or expensive consumer loans above 8–10 % — paying down the debt is a guaranteed return of that rate; you don't have an emergency fund covering 3–6 months of expenses; you would need that money within 1–3 years (the market can fall 30 %–50 % in any given year); or you cannot sleep at night seeing your portfolio drop 20 % on paper. The market rewards those who do not sell at the wrong moment, and that requires having the right financial buffer first.

9. Your first month investing: step by step

A concrete schedule for the first 30 days, designed so that you finish them with the system running on autopilot:

1. Day 1–2 — Sort out the emergency fund

   Move 3–6 months of essential expenses (rent, food, utilities, basic bills) to a remunerated account or a 1-day deposit. This money is not for investing; it is the buffer that lets you stay invested.

2. Day 3–5 — Define the amount you can contribute monthly

   Look at your last six months of bank statements. Subtract income minus essential expenses minus a realistic budget for leisure. What remains is what you can really contribute without forcing your lifestyle. Better to start small and not stop.

3. Day 6–10 — Pick a platform and open the account

   Choose between a low-cost indexed fund manager (Indexa, MyInvestor, Finizens) or a broker for ETFs (IBKR, Degiro, Trade Republic). For pure simplicity, the first option. Identity verification usually takes 2–5 business days.

4. Day 11–15 — Choose your portfolio

   If you go with a manager, fill in the risk profile and accept their proposed portfolio (a mix of global equities + fixed income). If you go with ETFs, the simplest starting point is a single global ETF (for example, one tracking MSCI World or FTSE All-World). Start with one. Add complexity later, never earlier.

5. Day 16–20 — Make the first transfer

   Send the first contribution. It does not matter if it is small. The goal is to break the psychological barrier of having "started", and to learn the platform's workflow without big amounts at stake.

6. Day 21–25 — Set up automatic recurring contributions

   Schedule a monthly automatic transfer for the day after your salary lands. This is the single most important step of the whole month: it converts a willpower-driven habit into a system that runs without you.

7. Day 26–30 — Forget it

   Block your portfolio app on the home screen, do not check it daily, do not read financial news every day. Compound interest needs time and your interventions, almost always, only hurt the result. Review the strategy once a year, not once a week.

Typical beginner mistakes

• Investing money you will need soon. If you need it in less than 3-5 years, it should not be in the stock market.
• Chasing trends. The crypto or stock everyone is talking about usually reaches your portfolio too late. Be wary of promises of quick returns.
• Paying high fees. Compare costs; over the long term they make a huge difference.
• Selling in the dips. Drops are normal and temporary. Whoever sells in a panic turns a passing loss into a permanent one.

Once your plan is clear, simulate your numbers with our tools and keep learning with the compound interest guide and the guide on how to plan your retirement.