Tax Guide - Kredovatorio

Getting Started

Understanding Your Tax Obligations

Before diving into forms and deductions, let's establish the foundation of what you need to know as a salaried employee in Mexico.

Who Must File an Annual Declaration?

Not every salaried employee needs to file an annual tax declaration. The requirement depends on your total annual income, number of employers, and other specific circumstances.

You must file if you earned more than 400,000 pesos annually, worked for two or more employers simultaneously, received income from sources other than salary, or if your employer didn't withhold taxes correctly.

Even if filing isn't mandatory for your situation, it often makes sense to do so. Many employees discover they're entitled to refunds once they properly account for their deductions.

Key Deductions

Deductions Available to Salaried Employees

These are the primary deductions that can reduce your tax burden. Each has specific requirements and documentation needs.

Medical and Dental Expenses

Deduct payments for medical, dental, and hospital services for yourself, your spouse, parents, grandparents, and children. Receipts must be electronic invoices issued to your RFC. Over-the-counter medications don't qualify, but prescription drugs do.

Education Expenses

Tuition for preschool, primary, secondary, high school, and professional education qualifies. The deduction has annual limits that vary by educational level. Transportation fees included in tuition can be deducted, but supplies and uniforms cannot.

Mortgage Interest

Interest paid on mortgage loans for your primary residence qualifies for deduction. The property value must not exceed 750,000 UDIs, and the loan must be from a financial institution authorized in Mexico. Only real interest payments count, not principal.

Retirement Savings

Voluntary contributions to retirement accounts can be deducted up to 10% of your annual income or five times the annual UMA, whichever is less. This includes contributions to personal retirement plans and supplementary contributions to your Afore.

Charitable Donations

Donations to authorized charitable organizations qualify for deduction up to 7% of your previous year's income. The organization must be registered with the SAT as authorized to receive deductible donations, and you need proper documentation.

Funeral Expenses

Funeral expenses for your spouse or direct-line relatives can be deducted up to one annual UMA. This is often overlooked but can provide meaningful relief during difficult times. Receipts must be proper electronic invoices.

Documentation Requirements

The SAT has specific requirements for what constitutes valid documentation for deductions. Understanding these requirements prevents your deductions from being rejected during review.

All deductible expenses must be supported by electronic invoices issued to your RFC. Paper receipts no longer qualify, regardless of the amount. The invoice must include complete information: your RFC, the provider's RFC, detailed description of goods or services, and proper tax breakdown.

For medical expenses, the invoice must come from authorized medical professionals or institutions. For education, it must come from schools with valid authorization. Payment must be made through traceable methods—cash payments over certain amounts won't be accepted.

Keep digital copies of all invoices organized by category. The SAT can request documentation up to five years after filing, so maintain an organized archive.

Filing Process

Step-by-Step Filing Instructions

Follow this process to complete and submit your annual declaration successfully.

1

Gather Your Documents

Collect your annual income statement from your employer, all electronic invoices for deductible expenses, and your RFC and password for the SAT portal. Verify that your employer's withholding information is correct before proceeding.

2

Access the SAT Portal

Log into the SAT portal using your RFC and password. Navigate to the annual declaration section for individuals. The system will pre-populate information it has on file, but you must verify everything for accuracy.

3

Review Pre-Filled Information

Check that your employer reported your income correctly. Verify personal information, address, and contact details. Confirm that withholdings match your pay stubs. Any discrepancies need resolution before continuing.

4

Enter Your Deductions

Input each category of deductible expenses. The system will pull some information automatically from invoices issued to your RFC, but verify completeness. Enter amounts carefully and double-check calculations.

5

Review and Submit

Use the system's validation tool to check for errors. Review the final calculation of your tax liability or refund. Once satisfied, submit electronically. Save your acknowledgment receipt and declaration PDF for your records.

Avoid Problems

Common Mistakes That Trigger Penalties

Learn from others' errors and avoid these frequent filing mistakes.

Missing the Deadline

The annual declaration deadline is April 30th. Missing it triggers automatic penalties that increase over time. If you can't file by the deadline, file as soon as possible to minimize penalties rather than waiting longer.

Using Invalid Receipts

Paper receipts or invoices not issued to your RFC won't be accepted. Even if you paid for a deductible expense, without proper electronic documentation, you can't claim it. Always request invoices at the time of purchase.

Mathematical Errors

Simple calculation mistakes can trigger reviews and penalties. Use the system's built-in calculators rather than entering final amounts manually. Double-check all figures before submission.

Claiming Ineligible Expenses

Not all medical or education expenses qualify. Over-the-counter medications, cosmetic procedures, and certain educational supplies don't meet requirements. Claiming ineligible expenses can result in deductions being rejected and penalties assessed.

Your Essential Guide to Mexican Tax Filing