The gap is driven by the headline tax structure — no special regime applied. Both countries are indicated in USD at the displayed FX.
| Personal income tax progressive · top 45% | $24,722 |
| Social security 2.0% employee · uncapped | $2,000 |
| Total deductions | $26,722 |
| Gross income | $100,000 |
| Net take-home | $73,278 |
| Personal income tax progressive · top 23% | $15,362 |
| Social security 11.0% employee · uncapped | $11,000 |
| Total deductions | $26,362 |
| Gross income | $100,000 |
| Net take-home | $73,638 |
| Instrument | Australia · USD | Czech Republic · USD | Δ (CZ − AU) |
|---|---|---|---|
I. Personal income tax | |||
Personal income tax AUprogressive · top 45%CZprogressive · top 23% | $24,722 | $15,362 | −$9,361 |
| subtotal · personal income tax | $24,722 | $15,362 | −$9,361 |
II. Mandatory social security & health | |||
Medicare Levy +2% of taxable income. Superannuation is employer-paid. AU2.0% · uncappedCZ11.0% · uncapped | $2,000 | $11,000 | +$9,000 |
| subtotal · mandatory social security & health | $2,000 | $11,000 | +$9,000 |
| Total deductions | $26,722 | $26,362 | −$361 |
| Effective rate | 26.7% | 26.4% | -0.4 pp |
| Gross income | $100,000 | $100,000 | — |
| Net take-home | $73,278 | $73,638 | +$361 |
Table 1 · Statutory deductions, single-filer remote worker, FY2026 indicative. All amounts in USD. n/a where instrument does not apply. | |||
| PPP basis · NYC = 100 | Australia | Czech Republic | Δ |
|---|---|---|---|
Cost-of-living index Indicative · placeholder until COL table ships | 80.0 | 55.0 | -25.0 pts |
Nominal net (annual) From the engine — exact | $73,278 | $73,638 | +$361 |
| Real net · Australia basket | $73,278 | $107,110 | +$33,833 |
Every line above can be traced to a primary instrument. We publish the model; you may toggle its parameters.
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