The gap is driven by the headline tax structure — no special regime applied. Both countries are indicated in USD at the displayed FX.
Both United Arab Emirates and Costa Rica operate on a territorial basis, though each country's bracket structure and available regimes produce materially different outcomes. Costa Rica's top marginal rate of 25% is 25 percentage points above United Arab Emirates's 0%, making the statutory gap one of the largest variables in this comparison. Tax residency crystallises after 90+ days in United Arab Emirates versus 183+ in Costa Rica — a 93-day window that matters for split-year planners.
| Personal income tax progressive · top 0% | — |
| Social security no statutory contribution | — |
| Total deductions | $0 |
| Gross income | $100,000 |
| Net take-home | $100,000 |
| Personal income tax dn_visa · 0% flat | — |
| Social security 10.7% employee · uncapped | $10,670 |
| Total deductions | $10,670 |
| Gross income | $100,000 |
| Net take-home | $89,330 |
On a $100k single-resident employment profile under each country's default schedule, United Arab Emirates produces the lower effective burden at 0.0% versus 28.3% in Costa Rica — a 28.3 percentage-point gap that compounds to roughly $28,337 of additional take-home annually. The 25-point spread in top statutory rates is the primary driver; above their respective thresholds, each additional dollar is taxed at 25% in Costa Rica but only 0% in United Arab Emirates. Costa Rica levies a social-security contribution on employment income; United Arab Emirates does not model one in the engine, so the bracket comparison here is relatively clean for United Arab Emirates. The gap widens at higher incomes as marginal rates diverge further; remote workers earning above $150k or $200k should run the full engine scenario with their actual figures for a more precise read.
| Instrument | United Arab Emirates · USD | Costa Rica · USD | Δ (CR − AE) |
|---|---|---|---|
I. Personal income tax | |||
Personal income tax AEprogressive · top 0%CRdn_visa · 0% flat | — | — | — |
| subtotal · personal income tax | $0 | $0 | +$0 |
II. Mandatory social security & health | |||
CCSS ~10.67%. AE—CR10.7% · uncapped | — | $10,670 | +$10,670 |
| subtotal · mandatory social security & health | $0 | $10,670 | +$10,670 |
| Total deductions | $0 | $10,670 | +$10,670 |
| Effective rate | 0.0% | 10.7% | 10.7 pp |
| Gross income | $100,000 | $100,000 | — |
| Net take-home | $100,000 | $89,330 | −$10,670 |
Table 1 · Statutory deductions, single-filer remote worker, FY2026 indicative. All amounts in USD. n/a where instrument does not apply. | |||
Costa Rica offers the Costa Rica Digital Nomad Visa (flat 0% on qualifying income) for qualifying incoming residents; United Arab Emirates has no equivalent ICP-targeted regime currently modelled — new residents there enter the standard United Arab Emirates schedule immediately. The Costa Rica Digital Nomad Visa runs for up to 2 years from first qualification, giving Costa Rica a meaningful medium-term advantage for eligible movers who plan to stay. For movers who don't qualify for Costa Rica's Costa Rica Digital Nomad Visa, both countries revert to their default progressive schedules, where United Arab Emirates's lower top rate still gives it a structural edge.
For a digital nomad or remote worker on a $100k income, United Arab Emirates offers a zero-tax outcome under the default schedule — making it the clear arithmetic winner against Costa Rica's 28.3% effective burden in this direct comparison. The calculus shifts if the Costa Rica Digital Nomad Visa is available: eligible movers may find Costa Rica the stronger play once the regime replaces the default schedule.
Every line above can be traced to a primary instrument. We publish the model; you may toggle its parameters.
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