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What is Form 145?
Form 145 is the employee's communication of information to the payer, as required under Spain's personal income tax (IRPF) rules. It allows your employer to correctly calculate the amount to withhold from your monthly payslip.
It captures your family situation, your spouse, your children, your ascendants, and other circumstances (disability, a mortgage taken out before 2013, compensatory alimony) that reduce your IRPF withholding.
You must notify your employer of any change in your situation during the year (marriage, a child, divorce, etc.) within 10 days.
When should you submit Form 145?
Use this document if:
- You start a new job and your employer requests it
- You've had a child or your family situation has changed
- You've gotten married, divorced, or started paying compensatory alimony
- You've been recognized with a disability rating
- You want to adjust your IRPF withholding before the new tax year
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Form 145 IRPF: employee's communication of information to their payer
Form 145 is the document through which an employee informs their payer (employer, public body, mutual insurer) of their personal and family circumstances, so that IRPF withholding can be correctly calculated on their payslip.
Complete it with your identifying details, family situation (marital status, spouse, children, ascendants), recognized disability ratings, compensatory alimony, and any other applicable deductions. Any error reduces your deductions and increases your monthly withholding.
Give Form 145 to your employer when you start your employment and update it as soon as your circumstances change. The employer will keep it on file as justification to the Tax Agency.
Optimize your IRPF withholding
Complete Form 145 in just a few minutes and hand it to your payer with the correct information.
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