Sports betting and online poker: the hidden problem of offsetting losses in your tax return

In Spain, gambling and poker losses can only offset gains up to the same year's winnings. You cannot generate tax losses as with investments: if you lose more than you win, the fiscal result is zero.

Published on 2026-03-25 · GTM Team

The rise of online gambling in Spain —especially sports betting and poker— has brought a tax problem that many players discover too late: not everything you lose can be offset as you think.

And this is where the surprises begin in your tax return.

🎰 How betting and poker are really taxed

In Spain, gambling winnings are taxed as capital gains in personal income tax (IRPF).

But with a key rule that many people ignore:

👉 You can only offset losses up to the limit of gains obtained in the same year

💸 Real example (and quite common)

Result:

👉 You only pay tax on €1,000

So far, so good.

But now comes the problem:

👉 You cannot declare a loss of €2,000

👉 The tax result is zero, not negative

⚠️ The most common mistake

Many players think it works like investments:

*"If I lose more than I win, I'll offset it later"*

Wrong.

👉 In online gambling you cannot generate tax losses to offset other income

📊 Another key point: not everything counts as a loss

For the Tax Authority to accept losses:

If you can't prove it:

👉 they simply won't accept them

🔍 Difference with investment (and why it matters)

Here's the important nuance:

👉 The tax system doesn't treat gambling the same as investment

🧠 What's happening behind the scenes

It's no coincidence.

👉 The Tax Authority allows you to be taxed on winnings…

👉 but limits loss offsetting to the maximum

Result:

📌 Conclusion

Online gambling in Spain doesn't just carry financial risk… it also carries tax risk.

And the problem isn't losing money:

👉 it's not understanding how what you owe is calculated

Because that's where many players end up paying more than they expected… or making mistakes that turn out to be expensive.

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