The gap is driven by the headline tax structure — no special regime applied. Both countries are indicated in USD at the displayed FX.
Both Argentina and Mexico operate on a worldwide-income basis, though each country's bracket structure and available regimes produce materially different outcomes. Top statutory rates are close — Argentina at 35% vs Mexico at 35% — so the outcome turns on bracket structure, social charges, and available regimes rather than the headline rate alone. Mexico uses a fixed 183-day threshold for residency; Argentina relies on a multi-factor test with no single day-count trigger.
| Personal income tax progressive · top 35% | $35,000 |
| Social security no statutory contribution | — |
| Total deductions | $35,000 |
| Gross income | $100,000 |
| Net take-home | $65,000 |
| Personal income tax progressive · top 35% | $26,271 |
| Social security 4.1% employee · uncapped | $4,100 |
| Total deductions | $30,371 |
| Gross income | $100,000 |
| Net take-home | $69,629 |
On a $100k single-resident employment profile under each country's default schedule, Mexico produces the lower effective burden at 30.4% versus 35.0% in Argentina — a 4.6 percentage-point gap that compounds to roughly $4,629 of additional take-home annually. Mexico levies a social-security contribution on employment income; Argentina does not model one in the engine, so the bracket comparison here is relatively clean for Argentina.
| Instrument | Argentina · USD | Mexico · USD | Δ (MX − AR) |
|---|---|---|---|
I. Personal income tax | |||
Personal income tax ARprogressive · top 35%MXprogressive · top 35% | $35,000 | $26,271 | −$8,729 |
| subtotal · personal income tax | $35,000 | $26,271 | −$8,729 |
II. Mandatory social security & health | |||
IMSS + AFORE ~4.1%. AR—MX4.1% · uncapped | — | $4,100 | +$4,100 |
| subtotal · mandatory social security & health | $0 | $4,100 | +$4,100 |
| Total deductions | $35,000 | $30,371 | −$4,629 |
| Effective rate | 35.0% | 30.4% | -4.6 pp |
| Gross income | $100,000 | $100,000 | — |
| Net take-home | $65,000 | $69,629 | +$4,629 |
Table 1 · Statutory deductions, single-filer remote worker, FY2026 indicative. All amounts in USD. n/a where instrument does not apply. | |||
Mexico offers the RESICO (Simplified Regime) (flat 2% on qualifying income) for qualifying incoming residents; Argentina has no equivalent ICP-targeted regime currently modelled — new residents there enter the standard Argentina schedule immediately. For movers who don't qualify for Mexico's RESICO (Simplified Regime), both countries revert to their default progressive schedules, where Argentina's lower top rate still gives it a structural edge.
For a digital nomad or remote worker on a $100k income, Mexico edges Argentina by 4.6 percentage points on the default schedule — a real but not overwhelming difference that other variables may offset.
Every line above can be traced to a primary instrument. We publish the model; you may toggle its parameters.
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