Gross to Net Salary Calculator

Easily convert your gross salary to net pay with our accurate and user-friendly Calculadora de Sueldo Bruto a Neto.

  • Instant result
  • No sign-up
  • Visible assumptions
  • Deterministic calculation

In 30 seconds: Quickly determine your exact net salary after taxes and deductions in just a few clicks. Deterministic calculation with auditable formulas. The result is indicative — adjust the assumptions to reflect your real operation.

Methodology

Mandatory contributions = Gross × Σ employee rates of the country

Taxable base = Gross − Mandatory contributions

For indexed-bracket countries (CO/CL/PE/UY): Base in units = Taxable base ÷ Unit value

Tax = fixedAmount + (Base − lowerBound) × marginal rate of the bracket

If fixedAmount is in UVT-style units, multiply by unit value for local currency

Net salary = Gross − Mandatory contributions − Tax

Total effective rate = (Contributions + Tax) ÷ Gross × 100

Variables

Gross
Total salary before tax and contributions, in the local currency of the selected country.
Country
Drives the tax table (ISR/IRPF/withholding) and mandatory contributions (IMSS/SS/Salud/Pensión/AFP/EsSalud).
Period
Monthly or annual. The calculator normalizes to the country's fiscal bracket period (Mexico monthly, Spain annual, etc.).
Tax unit value (UVT/UTM/UIT/BPC)
Only for CO/CL/PE/UY — the bracket is expressed in an inflation-indexed unit; the calculator handles the conversion.

Practical example

Mexico 2026 — gross salary $25,000 MXN/month:

IMSS employee contribution ≈ 2.5% → $625 MXN.

Taxable base = $25,000 − $625 = $24,375 MXN.

Bracket art 96 LISR: 17,533.65–35,362.83 (fixed $1,856.84 + 21.36% on excess).

Tax = $1,856.84 + ($24,375 − $17,533.65) × 0.2136 = $1,856.84 + $1,461.46 = $3,318.30 MXN.

Net ≈ $25,000 − $625 − $3,318 = $21,057 MXN. Total effective rate ~15.8%.

Interpretation

The real effective rate (tax + contributions) is usually higher than the nominal one because the marginal bracket only applies to the excess, while contributions are linear over gross.

Bracket transitions are progressive, not abrupt: an extra dollar of salary never leaves you with less net, but it does change the effective rate on the increment.

For Spain, the model aggregates national + regional rates using Madrid as baseline; some communities like Catalonia have slightly higher rates in upper brackets.

For Argentina, the scale resets twice a year — results may drift vs ARCA if the bracket isn't updated.

Assumptions and limitations

  • Models EMPLOYEE contributions only. Employer-side (IMSS patronal in MX, employer SS in ES, ARL/parafiscales in CO) is NOT included.
  • Excludes employee tax credits (Mexico subsidio al empleo, Spain reducción por rendimientos del trabajo, Argentina asignación familiar) which can lower tax in certain ranges.
  • In-kind compensation (food vouchers, savings funds, tickets restaurant) isn't modeled — calculation is on cash compensation only.
  • Voluntary contributions to pension funds / AFC / supplementary plans reduce taxable base but require additional input (planned for future versions).
  • For CO, the model applies the simplified art 383 ET on cleansed base capped at 40% of net income. Procedure 1 vs 2 with variable taxable base aren't distinguished.

When to use this calculator

  • Before accepting a job offer, to know what cash actually reaches your hand each month and benchmark it against the cost of living.

  • When evaluating a country switch (relocation, remote contract from another country) — the gap in effective rate can be 10-15 percentage points.

  • To understand the effect of a raise: net pay rises less than gross, because the excess is taxed at the marginal bracket rate. Enter both salaries and compare the net figures.

  • Before signing as a freelancer / contractor: compare the salaried calculation vs the one you'd have as an independent contributor.

  • To verify your payslip: if what you receive differs widely from the estimate, identify what extras the employer is deducting (internal loans, garnishments, debts).

  • As an employer, to budget the total cost of a new hire (adding the employer-side portion to this result).

Common mistakes

  • Thinking the marginal rate applies to the whole salary. It only applies to the excess over lowerBound — the rest is taxed at lower accumulated rates inside fixedAmount.

  • Comparing gross-to-gross across countries without converting to net. €60k in Spain can leave more net than €80k in a higher-tax jurisdiction.

  • Forgetting voluntary pension or savings contributions that reduce taxable base and effective tax in almost every country (except AR where the effect is marginal).

  • Ignoring that the 13th-month / Christmas / aguinaldo bonus has separate tax treatment in many countries — the simulator assumes regular salary.

  • Confusing 'employee contributions' with 'employer contributions'. The total cost to the company is far higher than the worker's gross, especially in CO (~52% over gross across all items) and AR (~30%).

Industry use cases

Salaried in Mexico (ISR + IMSS)

Salary $35,000 MXN/mo. IMSS employee ~$875. Base $34,125. ISR ~$5,690. Net ~$28,435. Effective rate ~18.7%. Subsidio al empleo doesn't apply in this range.

Salaried in Spain (IRPF + Social Security)

Gross €36,000/yr. Employee SS ~6.35% → €2,286. Base €33,714. IRPF ~€7,500 (mix of 19/24/30%). Net ~€26,214. Effective rate ~27%. Madrid baseline.

Salaried in Colombia (Withholding + Health + Pension)

Gross $5,000,000 COP/mo (~95 UVT). Health 4% + Pension 4% = $400,000 contributions. Base $4,600,000. Minimum withholding (95 UVT exempt). Net ~$4,600,000.

Freelance vs salaried in MX

Same $50k gross: as salaried, net ~$39,800 (ISR + IMSS). As autónomo under RESICO: pay 1-2.5% on gross income, net ~$48,750. Difference: $9,000/mo — but RESICO has an annual cap of $3.5M.

International comparison for digital nomad

$60,000 USD/yr gross: in MX (asimilado regime) leaves ~$48k USD; in ES after IRPF + SS ~$42k USD; in UY (first-year impatriate) ~$54k USD; in PT (post-NHR) ~$45k USD. Up to $12k USD annual variation.

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Financial disclaimerIndicative result — not professional financial advice. Consult a specialist before making investment or credit decisions.

View methodology

Calculator guide

What it calculates and who it is for

This calculator converts a gross salary into net pay: it applies the selected country's social security contributions and the corresponding progressive income tax schedule, and shows you the full breakdown — contributions, taxable base, bracket-level tax and effective rate.

It serves employees who want to verify their payslip, compare a job offer or understand where the difference between the agreed salary and the deposit goes. The result is indicative: every individual situation has deductions and benefits a general calculation cannot capture.

Inputs

Gross salary
The agreed salary before withholdings, in the selected country's currency.
Period
Monthly, annual, biweekly or weekly: the engine converts internally and returns the result in the same period you enter.
Country
Determines which contributions and which tax schedule apply: each country has its own bracket scheme and its own social security quotas.
Pension system (per country)
In countries with elective pension systems, the selection adjusts the corresponding contribution.

Results you get

Net salary
What remains of gross pay after social security contributions and income tax: the figure comparable to your deposit.
Itemized contributions
Each social security quota applied, with its rate and a note when it is an approximation.
Tax and bracket detail
The withheld tax and, where applicable, the bracket breakdown: lower limit, excess, fixed quota and marginal percentage.
Effective rate
The total share of gross pay going to tax plus contributions — your real burden, distinct from your marginal rate.
Employer cost (Mexico)
For Mexico, the estimate of the company's total cost: employer quotas, benefits and payroll tax.

Methodology and assumptions

Taxable base = Gross − Employee contributions (per the country's scheme)

Tax = Bracket's fixed quota + (Base − Bracket lower limit) × marginal %

Net = Gross − Contributions − Tax

Effective rate % = (Tax + Contributions) ÷ Gross × 100

The engine applies the selected country's progressive bracket schedule: it locates your taxable base's bracket and applies the fixed quota plus the percentage on the excess — the same procedure as official withholding tables.

Social security quotas use approximate effective rates where the real scheme combines multiple branches; the breakdown explicitly marks which lines are approximations.

Worked example

Hypothetical example for illustration. The numbers reproduce exactly when entered into the calculator on this page.

Worked example (Mexico): a gross salary of $25,000 MXN per month.

Employee IMSS contribution: $625 (an approximate effective rate of 2.5% on the contribution base).

Withheld income tax (ISR): $3,451.65, computed with the monthly progressive schedule — the bracket's fixed quota plus the percentage on the excess over its lower limit.

Net salary: $25,000 − $625 − $3,451.65 = $20,923.35.

Effective rate: 16.3% — at this income level, a bit over 16 cents of every gross peso goes to tax and social security.

How to interpret the result

Compare the effective rate, not the marginal one: being 'in the 30% bracket' does not mean losing 30% of your salary, because earlier brackets are taxed less. The effective rate is the honest number for comparing offers.

When comparing offers across countries or levels, always use net pay for the same period, and remember that non-cash benefits (bonuses, vacations, savings funds) do not appear in this calculation.

If your real payslip differs from the result, the typical causes are personal deductions, taxed benefits, applicable subsidies or capped contribution bases — the breakdown tells you which line to check against your payslip.

Limitations and when not to use it

  • It is a general, indicative calculation, not a payroll settlement: it excludes personal deductions, subsidies, taxed benefits and family situations that change the real withholding.
  • Some contributions use approximate effective rates where the official scheme combines fixed quotas and per-branch percentages; the breakdown notes indicate this.
  • Schedules correspond to the engine's current configuration: verify official figures before decisions with tax consequences.
  • It does not compute independent-contractor or professional-fee withholdings: the modeled scheme is salaried employment.
  • Do not use it as a substitute for tax advice or to prepare filings: it is an orientation tool.

From theory to calculation

The calculator on this page runs with your numbers — no forms, no login. Scroll up and try it.

Try the calculator

Frequently asked questions

1Why doesn't my real payslip match exactly?
Because your actual payroll may include personal deductions, taxed benefits, employment subsidies or a different contribution base. Use the line-by-line breakdown to locate the difference: it is almost always in a contribution or the taxable base.
2What's the difference between marginal and effective rate?
The marginal rate is the percentage of the highest bracket you reach: it only taxes the excess above that bracket's limit. The effective rate divides everything withheld by gross pay — always lower than the marginal, and the right one for comparisons.
3Can I compare salaries across countries with this tool?
You can compare nets under each country's scheme, but a full comparison requires cost of living, benefits and non-salary perks that the calculation does not capture.
4Does the employer cost affect me as an employee?
It doesn't come out of your pocket, but it explains the gap between what the company spends on you and what you receive. In negotiations it helps to know both numbers.
5What if my salary is variable?
Calculate with your recent monthly average for a general view, and with your lowest month for the conservative scenario. Progressivity means high months withhold proportionally more.

Last updated: July 19, 2026

View methodology

How this simulator was reviewed

What you'll see, what it prevents, and where you shouldn't trust it

Every simulator on Simúlalo ships with the same editorial structure: two hypothetical worked examples with numbers, the errors it helps you avoid, the model's declared limitations, and a visible financial disclaimer. The review is signed and dated.

Hypothetical caseCase A

Mexican salaried worker who finds their '10% raise' does not translate to 10% more in hand

An employee moves from $25,000 to $27,500 gross monthly (+10%). In the calculator they declare an asimilado-a-sueldos regime, tiered income tax, and typical IMSS social security contributions. Net moves from approximately $20,800 to $22,540 — barely 8.4% more in hand. The difference goes to the marginal income tax in the new bracket. Decision: when negotiating raises, always calculate the net, do not assume the gross percentage is preserved.

Illustrative figures. Does not represent a real company or an investment recommendation.

Hypothetical caseCase B

Freelancer quoting in gross without subtracting withholdings and ending up receiving 23% less

A freelancer quotes a service at $20,000 plus VAT. When receiving payment from a corporate client, VAT withholding (10.667%) and income tax withholding (10%) reduce the effective income. The illustrative calculator shows that net income before professional expenses lands at approximately $15,400. Decision: quote including the withholding effect from the start, not after the surprise deposit.

Illustrative figures. Does not represent a real company or an investment recommendation.

Common mistakes it helps you avoid

Things a team or decision-maker might assume that this simulator forces you to verify before committing.

  • Confusing gross salary with the total cost to the employer: employer cost is typically 25-35% higher than gross due to employer contributions.
  • Forgetting withholdings by regime: asimilado a sueldos, salaried, professional fees — each regime has different tables and the calculator does not decide your regime.
  • Applying generic deductions without verifying your situation: personal deductions like medical or educational expenses depend on annual filing and receipts; they don't enter the monthly calculation.
  • Assuming the calculator replaces the tax authority: official liquidation comes from your employer or accountant with the real period values.

Model limitations

What the simulator does not do, and where you need a professional or a specialized tool.

  • Does not query tax tables in real time or intra-year rate changes. Uses the percentages you declare at the start.
  • Does not include company-specific benefits (food vouchers, savings funds, vacation premium) that may lower the taxable base.
  • Does not differentiate VAT withholdings by service type or by client regime. Those details require fiscal consultation.
  • Does not replace official tax authority calculation — for filing you need certified software and an accountant.

When NOT to use this simulator

Don't use this calculator to prepare your annual return or to confirm the exact amount you'll be paid. It is illustrative — useful to anticipate negotiations, compare job offers, or estimate the effect of a raise. For official liquidation, certified payroll receipts, or filing with the tax authority, consult your accountant and use certified fiscal software in your country.

Financial notice

Results are illustrative estimates and do not constitute financial, tax, accounting, or legal advice. Use the results as a reference point and validate important decisions with a certified professional.

Editorial review

Reviewed by the Simúlalo editorial team

This simulator was reviewed by the people listed below before being published. The review covers the declared formula, the model's assumptions, the explicit limitations, and the absence of unsupported financial claims.

They are part of the Simúlalo editorial team, focused on building financial tools that are clear, educational, and easy to interpret.

Last updated: We update this page when the methodology, sources used, or simulator structure change.

This tool uses standard financial formulas and user-supplied data. To explain concepts like rates, credit, risk, or cash flow we consult public and official sources (Banxico, SAT, CONDUSEF, CNBV, Banco de España, IFRS, BIS, among others). Simúlalo is not affiliated with, sponsored by, or endorsed by these institutions.