The practical rule
The review usually compares foreign tax paid with the Spanish deduction limit calculated under Spanish rules.
- Part of the calculation depends on Spanish tax attributable to that income.
- Dividends must be properly classified and documented.
- Excess foreign tax may not be deductible in Spain.
Common mistakes
The most common mistake is assuming that all foreign withholding is recovered or that the broker has solved all tax reporting.
- Confusing source withholding with Spanish withholding.
- Not keeping country and payment-date detail.
- Reporting the net amount without reviewing gross amount and tax withheld.
Frequently asked questions
Can I deduct all foreign withholding?
Not necessarily. The relief is limited by Spanish rules and by the Spanish tax linked to that income.
Is any broker statement enough?
It should identify gross amount, withholding, country and date. If incomplete, keep supporting records.