Income Tax (ISR) Guide for Salaried Workers in Guatemala 2026

The Income Tax (Impuesto Sobre la Renta — ISR) is one of the most misunderstood taxes among Guatemalan workers. Every month, your employer withholds a portion of your salary to hand it over to the Tax Administration Superintendency (SAT), but do you know exactly how much should be withheld and why?

In this complete 2026 guide, we explain everything you need to know about ISR for salaried employees in Guatemala: legal framework, current rates, available deductions, and how to use our Guatemala ISR calculator to verify your withholding is correct.

What Is the ISR for Salaried Workers?

The ISR (Income Tax) is a direct tax on income earned by individuals and legal entities in Guatemala. For employees in a dependency relationship (salaried workers), there is a special regime known as Work Income (Rentas del Trabajo), which differs from the regime applied to companies or self-employed professionals.

Legal Framework

The ISR for salaried workers in Guatemala is primarily governed by:

• Congressional Decree 10-2012 — Tax Modernization Act (Ley de Actualización Tributaria / LAT), the current fiscal law
• Book I, Title IV of the LAT, specifically covering Work Income
• SAT regulations that update deduction values and withholding procedures annually

It is the employer's obligation to act as withholding agent, calculating and retaining the monthly ISR for each worker, and remitting it to the SAT no later than the tenth business day of the following month.

Who Falls Under the Work Income Regime?

This regime applies to all persons earning income from:

• Wages and salaries in a formal employment relationship
• Bonuses and commissions paid by the employer
• Overtime pay and surcharges
• Per diem allowances when they exceed permitted limits
• In-kind benefits (company car, housing, etc.) when computed as income
• Severance payments exceeding the legally required minimum amounts

Tax-Exempt Income

Not all worker perceptions are subject to ISR. The following are exempt:

• The minimum wage and mandatory labor benefits (Christmas bonus/aguinaldo, Bono 14, vacation pay) up to legal minimum amounts
• Severance payments for unjustified dismissal up to the legal minimum
• Payments for work accidents or occupational diseases
• Retirement pensions and annuities from the IGSS social security system

2026 ISR Rates for Salaried Workers

Guatemala applies a progressive scale for employee ISR. The rates in force for 2026 on taxable net income are:

| Annual Net Income Range (GTQ) | Rate | |---|---| | Q 0.01 — Q 48,000.00 | 5% | | Q 48,000.01 and above | 7% |

Important: The 5% rate applies to the first Q 48,000 of net income. Any amount above that threshold is taxed at 7%.

Quick Example

If your annual taxable net income is Q 72,000:

• First Q 48,000 × 5% = Q 2,400
• Remaining Q 24,000 × 7% = Q 1,680
• Total annual ISR: Q 4,080
• Average monthly ISR: Q 340

Allowed Deductions for Salaried Workers

Before calculating the tax, the law allows you to subtract certain deductions from your gross income to arrive at your taxable net income. Taking full advantage of these can significantly reduce your tax burden.

1. Personal Fixed Deduction

Every worker is entitled to a personal deduction of Q 48,000 per year (Q 4,000 per month). This deduction is automatic — no special procedures are required with either the SAT or your employer.

2. IGSS Contributions

The IGSS social security contributions deducted from your salary are fully deductible. Currently, the employee contribution rate is 4.83% of monthly salary. Use our IGSS Guatemala calculator to calculate the exact amount.

3. Donations to Authorized Entities

Donations made to non-profit entities authorized by the SAT are deductible up to 5% of gross income or Q 500,000, whichever is lower.

4. Medical Expenses

Medical, hospital, and prescription drug expenses are deductible if supported by invoices properly registered with the SAT.

5. Professional Association Dues

If you are a registered professional, your annual dues to your professional association are fully deductible.

6. Life Insurance Premiums

Life insurance premiums with insurance companies licensed in Guatemala are deductible up to the limit established by the SAT for the relevant fiscal year.

Step-by-Step Monthly ISR Calculation

Here is the process your employer should follow to calculate your monthly ISR withholding:

Step 1: Determine Projected Annual Gross Income

Take your monthly salary and multiply by 12. Include any fixed bonuses.

Example: Monthly salary Q 8,000 × 12 = Q 96,000

Step 2: Subtract the Personal Fixed Deduction

Q 96,000 − Q 48,000 = Q 48,000

Step 3: Subtract Annual IGSS Contributions

Q 8,000 × 4.83% = Q 386.40/month × 12 = Q 4,636.80/year

Q 48,000 − Q 4,636.80 = Q 43,363.20

Step 4: Subtract Other Documented Deductions

If you have documented medical expenses or other deductions, subtract them here. For this example, we assume no additional deductions.

Taxable net income: Q 43,363.20

Step 5: Apply Progressive Rates

Since Q 43,363.20 is below Q 48,000:

• Q 43,363.20 × 5% = Q 2,168.16 annual ISR

Step 6: Divide by 12 for Monthly Withholding

Q 2,168.16 ÷ 12 = Q 180.68 per month

This is the amount your employer should withhold each month and remit to the SAT within the legal deadline.

Practical Examples by Salary Level

Here are several common salary scenarios in Guatemala to illustrate how ISR varies:

Q 5,000/month (Q 60,000/year)

• Annual gross income: Q 60,000
• Personal deduction: − Q 48,000
• Annual IGSS contribution: − Q 2,898
• Taxable net income: Q 9,102
• Annual ISR: Q 9,102 × 5% = Q 455.10
• Monthly ISR: Q 37.93

Q 10,000/month (Q 120,000/year)

• Annual gross income: Q 120,000
• Personal deduction: − Q 48,000
• Annual IGSS contribution: − Q 5,796
• Taxable net income: Q 66,204
• ISR: (Q 48,000 × 5%) + (Q 18,204 × 7%) = Q 2,400 + Q 1,274.28 = Q 3,674.28
• Monthly ISR: Q 306.19

Q 20,000/month (Q 240,000/year)

• Annual gross income: Q 240,000
• Personal deduction: − Q 48,000
• Annual IGSS contribution: − Q 11,592
• Taxable net income: Q 180,408
• ISR: (Q 48,000 × 5%) + (Q 132,408 × 7%) = Q 2,400 + Q 9,268.56 = Q 11,668.56
• Monthly ISR: Q 972.38

Q 35,000/month (Q 420,000/year)

• Annual gross income: Q 420,000
• Personal deduction: − Q 48,000
• Annual IGSS contribution: − Q 20,286
• Taxable net income: Q 351,714
• ISR: (Q 48,000 × 5%) + (Q 303,714 × 7%) = Q 2,400 + Q 21,259.98 = Q 23,659.98
• Monthly ISR: Q 1,971.67

Annual ISR Settlement Process

Each year, within the first three months of the following year (January–March), workers who had more than one employer or who have additional deductions not accounted for by their employer must file their annual ISR return with the SAT.

Workers with a single employer who only earn work income are generally not required to file an annual return, since their employer has already handled all withholdings. However, they may do so voluntarily to claim refunds if they overpaid.

When Must You File?

You must file an annual return if you:

• Had more than one employer during the year
• Earned other income in addition to your salary (rental income, freelance fees, etc.)
• Want to deduct expenses your employer did not account for (medical, donations, etc.)
• Believe your monthly withholding was calculated incorrectly

Common Mistakes in ISR Withholding

Mistake 1: Not Presenting Additional Deductions to the Employer

Many employers calculate withholding without considering the worker's additional deductions (medical expenses, donations). If you have deductions your employer isn't factoring in, present the receipts to your HR or Payroll department at the start of the fiscal year.

Mistake 2: Treating the Christmas Bonus and Bono 14 as Taxable Income

The Christmas bonus (aguinaldo) and Bono 14 are legally mandated benefits that are generally exempt from ISR when they equal the standard monthly salary. However, if the employer pays amounts exceeding the legal minimum, the difference may be subject to withholding.

Mistake 3: Applying the 7% Rate to All Income

The 7% rate only applies to the portion of net income exceeding Q 48,000, not the total. Applying it to the entire base results in over-withholding.

Mistake 4: Not Keeping the Annual Withholding Certificate

Your employer is required to issue an annual ISR withholding certificate at the close of each fiscal year. Keep it in a safe place — you will need it if you file an annual return or change employers.

Mistake 5: Ignoring the Tax Impact of Overtime

Overtime pay from your employer is part of your work income and is subject to ISR withholding. If you regularly work overtime, your employer should include those earnings in the annual projection and withhold accordingly.

Impact of ISR on Your Take-Home Pay

To understand your true net income, you need to consider both ISR and IGSS contributions:

| Gross Salary | IGSS (4.83%) | Est. Monthly ISR | Take-Home Pay | |---|---|---|---| | Q 5,000 | − Q 241.50 | − Q 37.93 | ≈ Q 4,720 | | Q 8,000 | − Q 386.40 | − Q 180.68 | ≈ Q 7,433 | | Q 12,000 | − Q 579.60 | − Q 404.40 | ≈ Q 11,016 | | Q 20,000 | − Q 966.00 | − Q 972.38 | ≈ Q 18,062 | | Q 35,000 | − Q 1,690.50 | − Q 1,971.67 | ≈ Q 31,338 |

Useful Tools to Manage Your ISR

Technology makes it easier than ever to check your tax obligations:

1. Guatemala ISR Calculator — Calculate your monthly and annual ISR based on your salary and deductions
2. Aguinaldo Calculator Guatemala — Verify your Christmas bonus entitlement and its tax implications
3. Bono 14 Calculator — Calculate your Bono 14 and understand its relationship with ISR
4. IGSS Guatemala Calculator — Know exactly how much IGSS is deducted from your paycheck monthly
5. Overtime Calculator Guatemala — Calculate overtime pay and its fiscal impact

Frequently Asked Questions About ISR for Salaried Workers

Does the minimum wage pay ISR?

In practice, most workers earning only the minimum wage in Guatemala do not pay ISR, since their annual income, after applying the Q 48,000 personal deduction and IGSS contributions, typically does not exceed the minimum taxable threshold or generates a very small tax.

What happens if my employer doesn't withhold ISR?

If your employer doesn't perform correct withholdings, responsibility falls first on them as the withholding agent. However, if you're obligated to file an annual return, you'll be responsible for paying any outstanding tax directly to the SAT.

Can I request a refund for ISR withheld in excess?

Yes. If at year-end it turns out more ISR was withheld than legally required, you can request a refund by filing your annual return with the SAT within the deadline and attaching your employer's withholding certificate.

Is overtime included in the ISR base?

Yes, overtime paid by your employer forms part of your work income and is subject to ISR withholding. Use our overtime calculator to estimate the fiscal impact.

What's the difference between employee ISR and self-employed ISR?

| Feature | Salaried Employees | Self-Employed / Companies | |---|---|---| | Regime | Work Income | Profits Regime or Small Taxpayer | | Rate | 5% and 7% progressive | 25% on profits or 5% on gross income | | Withholding | Employer withholds monthly | Quarterly or monthly self-payments | | Annual return | Generally not required | Mandatory |

Conclusion: Take Control of Your Tax Situation

Understanding how ISR works for salaried workers in Guatemala empowers you to:

• Verify that your employer is correctly withholding each month
• Take advantage of all deductions you're entitled to and reduce your tax burden
• Plan your personal finances better knowing your actual net salary
• Comply with your tax obligations without year-end surprises

ISR in Guatemala isn't as complicated as it seems once you understand the rates and your deductions. With our Guatemala ISR calculator, you can calculate in seconds and compare different income and deduction scenarios.

Have questions about your monthly withholding or how to file your annual return? For complex tax situations, always consult a Certified Public Accountant (CPA) registered with the Colegio de Contadores Públicos y Auditores de Guatemala.

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Article published March 2026. Information is based on the Tax Modernization Act (Decree 10-2012) and current SAT regulations in Guatemala. In the event of regulatory changes, verify information with a certified tax professional.