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 23% | $15,362 |
| Social security 11.0% employee · uncapped | $11,000 |
| Total deductions | $26,362 |
| Gross income | $100,000 |
| Net take-home | $73,638 |
| Personal income tax progressive · top 45% | $24,091 |
| Social security 8.0% employee · capped | $5,094 |
| Total deductions | $29,185 |
| Gross income | $100,000 |
| Net take-home | $70,815 |
| Instrument | Czech Republic · USD | United Kingdom · USD | Δ (GB − CZ) |
|---|---|---|---|
I. Personal income tax | |||
Personal income tax CZprogressive · top 23%GBprogressive · top 45% | $15,362 | $24,091 | +$8,730 |
| subtotal · personal income tax | $15,362 | $24,091 | +$8,730 |
II. Mandatory social security & health | |||
Social 6.5% + health 4.5% = 11%. CZ11.0% · uncappedGB— | $11,000 | — | −$11,000 |
NI Class 1: 8% on £242-£967/wk; 2% above (cap modeled at primary upper earnings limit). CZ—GB8.0% · capped £50,300 | — | $5,094 | +$5,094 |
| subtotal · mandatory social security & health | $11,000 | $5,094 | −$5,906 |
| Total deductions | $26,362 | $29,185 | +$2,823 |
| Effective rate | 26.4% | 29.2% | 2.8 pp |
| Gross income | $100,000 | $100,000 | — |
| Net take-home | $73,638 | $70,815 | −$2,823 |
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 | Czech Republic | United Kingdom | Δ |
|---|---|---|---|
Cost-of-living index Indicative · placeholder until COL table ships | 55.0 | 78.0 | +23.0 pts |
Nominal net (annual) From the engine — exact | $73,638 | $70,815 | −$2,823 |
| Real net · United Kingdom basket | $104,433 | $70,815 | −$33,618 |
Every line above can be traced to a primary instrument. We publish the model; you may toggle its parameters.
Read the full note ↗