By Benjamin Roure L'Hermitte
Where to invest money in Spain in 2026 depends first on when you will need it. With inflation estimated at 4.9% over the year to October 2026 by the INE, an average current account paying 0.16% and 12-month Letras del Tesoro auctioned at 3.068% on November 3, idle money is losing purchasing power. This guide, written for Spanish tax residents, sorts investments by time horizon: accounts and Treasury bills for the short term, index funds and ETFs for the long term, pension plans for retirement, with how each is taxed.
- 4.9% inflation over the year to October 2026 according to the INE flash estimate: anything earning less loses purchasing power.
- 12-month Letras del Tesoro: 3.068% at the November 3, 2026 auction, from €1,000, backed by the Spanish state.
- Index funds (fondos indexados): you can switch funds without paying tax (traspaso); ETFs do not get this.
- Pension plan: up to €1,500 a year deductible from taxable income, €8,500 more through employer contributions.
There is no best investment in the abstract. Money for the coming months must stay available and safe; retirement money can ride out years of declines. Sorting each euro by horizon avoids the two classic mistakes: leaving everything in an account that pays nothing, or putting money you will need next year into the stock market.
This guide does not recommend any bank or product. It draws on figures from the INE, the Banco de España, the Spanish Treasury, the CNMV and the Agencia Tributaria. For the basics, see what is investing.
TL;DRIn Spain in 2026, inflation (4.9% in October according to the INE) exceeds what accounts and Treasury bills pay (3.068% for 12-month Letras on November 3). Short-term money goes into an interest-bearing account, a deposit or Letras; long-term money into diversified index funds or ETFs; retirement money can go into a pension plan, deductible up to €1,500 a year. Funds can be switched tax-free, ETFs cannot. Gains are taxed in the savings base, from 19% to 30%.
Before investing: an emergency fund
Before any risky investment, two steps: pay off expensive debt such as revolving credit, and build an emergency fund of three to six months of spending in an account you can access. Our guide to interest-bearing accounts in Spain explains where to keep it and how it is guaranteed.
Where to put money by time horizon
| Horizon | Suitable investments | Risk |
|---|---|---|
| Under a year | Interest-bearing account, time deposit, 3, 6 or 12-month Letras | Very low, deposit or state guarantee |
| One to five years | Letras, deposits, money market funds, short-term bond funds | Low to moderate |
| Over five years | Diversified global equity index funds and ETFs | High in the short term, lower over time |
| Retirement | Pension plan, alongside funds and ETFs | Depends on the plan's assets |
The short term: accounts, deposits and Letras del Tesoro
Letras del Tesoro are Spanish government bills with 3, 6, 9 or 12-month maturities, sold at auction. On November 3, 2026, 12-month Letras were auctioned at a 3.068% marginal rate and a 3.045% average rate, 6-month Letras at 2.845% and 2.822%. They can be bought from €1,000 directly from the Banco de España or the Treasury, or through your bank, often for a fee. Gains are taxed in the savings base.
With €10,000 invested for a year at 3.068%, the gross gain is €306.80, or €248.51 after 19% tax. If inflation stayed at 4.9%, purchasing power would still fall by about €230, against about €455 in an average current account at 0.16%. The short term protects capital; it does not grow it in real terms.
The long term: index funds or ETFs
An index fund tracks an index, such as global shares, at low cost. In Spain, two formats coexist: the fondo indexado, a traditional investment fund bought from a fund manager or distributor at the day's net asset value, and the ETF, a listed fund bought on the stock exchange like a share, in real time. Our guide what is an ETF explains how they work.
| Fondo indexado | ETF | |
|---|---|---|
| Where to buy | From a fund manager or distributor | On the exchange, through a broker |
| Price | Net asset value, once a day | Continuously during the session |
| Tax-free switch (traspaso) | Yes, to another fund | No |
| Withholding on exit | 19% on the gain at redemption | Gain declared in the savings base |
| Costs | Ongoing charges, often low for index funds | Ongoing charges often very low, plus brokerage |
The traspaso is the fund's decisive advantage: according to the CNMV and the Agencia Tributaria, you can move from one investment fund to another, Spanish or European registered with the CNMV, without paying tax on the gain, which is only taxed on final redemption. ETFs are excluded, foreign ETFs included since 2022. Example: switching funds with a €3,000 gain costs nothing; selling an ETF to buy another costs €570 in tax at 19%.
Retirement: the pension plan
A Spanish pension plan (plan de pensiones) lets you deduct contributions from general taxable income, up to €1,500 a year, a limit that can rise by €8,500 with employer contributions to an occupational plan, according to the Agencia Tributaria. With a 30% marginal rate, €1,500 contributed saves €450 in tax. In return, the money is locked until retirement, except in set cases, and withdrawals are taxed as employment income: the benefit is a tax deferral rather than an exemption.
How investments are taxed in Spain
- Savings base: interest, dividends and capital gains are taxed at 19% up to €6,000, then 21%, 23%, 27% and 30% above €300,000.
- Withholding: 19% on interest and fund redemptions, credited against the final tax.
- Losses: they offset gains in the same year and, failing that, carry forward for four years.
- Accounts abroad: above €50,000 held outside Spain, the informative form 720 is due.
Staying safe: the CNMV and diversification
Before handing over money, check that the firm is registered with the CNMV or the Banco de España, and look at the CNMV's list of unauthorised entities: promises of high returns without risk are the first warning sign. Then spread your money across asset classes and regions rather than betting on a few Spanish shares: see portfolio diversification.
Frequently asked questions
Where should I invest money in Spain in 2026?
By horizon: an interest-bearing account, deposit or Letras del Tesoro for under a year; global equity index funds or ETFs for over five years; a pension plan as a complement for retirement.
What do Spanish Treasury bills pay?
At the November 3, 2026 auction, a 3.068% marginal rate for 12 months and 2.845% for 6 months. They can be bought from €1,000.
Index fund or ETF in Spain?
A fondo indexado lets you switch funds without paying tax through the traspaso; an ETF often has lower costs, but every sale triggers tax on the gain.
Is a Spanish pension plan worth it?
It cuts tax in the year of the contribution, up to €1,500 a year, but the money is locked and taxed as employment income on withdrawal. It suits a high marginal rate best.
How are investment gains taxed in Spain?
In the savings base, from 19% to 30% depending on the amount, with 19% withholding on interest and fund redemptions.
How can I avoid investment scams in Spain?
Check the firm's registration with the CNMV or the Banco de España and the CNMV's list of unauthorised entities, and be wary of any high return promised without risk.