The gap is driven by the headline tax structure — no special regime applied. Both countries are indicated in USD at the displayed FX.
Both Costa Rica and Singapore operate on a territorial basis, though each country's bracket structure and available regimes produce materially different outcomes. Top statutory rates are close — Costa Rica at 25% vs Singapore at 24% — so the outcome turns on bracket structure, social charges, and available regimes rather than the headline rate alone.
| 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 |
| Personal income tax progressive · top 24% | $7,500 |
| Social security no statutory contribution | — |
| Total deductions | $7,500 |
| Gross income | $100,000 |
| Net take-home | $92,500 |
On a $100k single-resident employment profile under each country's default schedule, Singapore produces the lower effective burden at 7.5% versus 28.3% in Costa Rica — a 20.8 percentage-point gap that compounds to roughly $20,837 of additional take-home annually. Costa Rica levies a social-security contribution on employment income; Singapore does not model one in the engine, so the bracket comparison here is relatively clean for Singapore. 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 | Costa Rica · USD | Singapore · USD | Δ (SG − CR) |
|---|---|---|---|
I. Personal income tax | |||
Personal income tax CRdn_visa · 0% flatSGprogressive · top 24% | — | $7,500 | +$7,500 |
| subtotal · personal income tax | $0 | $7,500 | +$7,500 |
II. Mandatory social security & health | |||
CCSS ~10.67%. CR10.7% · uncappedSG— | $10,670 | — | −$10,670 |
| subtotal · mandatory social security & health | $10,670 | $0 | −$10,670 |
| Total deductions | $10,670 | $7,500 | −$3,170 |
| Effective rate | 10.7% | 7.5% | -3.2 pp |
| Gross income | $100,000 | $100,000 | — |
| Net take-home | $89,330 | $92,500 | +$3,170 |
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; Singapore has no equivalent ICP-targeted regime currently modelled — new residents there enter the standard Singapore 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 Costa Rica's lower top rate still gives it a structural edge.
For a digital nomad or remote worker on a $100k income, Singapore's effective burden of 7.5% is well below Costa Rica's 28.3%, making Singapore the arithmetic preference for pure take-home optimisation. 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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