| Self-employed person’s estimated annual income for the relevant year |
| | Self-employed person who has not attained 35 years of age on 1 January of the relevant year |
| | Self-employed person who has attained 35 years of age but has not attained 45 years of age on 1 January of the relevant year |
| | Self-employed person who has attained 45 years of age but has not attained 50 years of age on 1 January of the relevant year |
| | Self-employed person who has attained 50 years of age on 1 January of the relevant year |
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| Exceeding $6,000 but not exceeding $12,000 |
| | An amount equal to 4% of the self‑employed person’s estimated annual income for that year. |
| | An amount equal to 4.5% of the self‑employed person’s estimated annual income for that year. |
| | An amount equal to 5% of the self‑employed person’s estimated annual income for that year. |
| | An amount equal to 5.25% of the self‑employed person’s estimated annual income for that year. |
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| Exceeding $12,000 but not exceeding $18,000 |
| | An amount equal to the sum of $480 and 0.16 of the difference between the self‑employed person’s estimated annual income for that year and $12,000. |
| | An amount equal to the sum of $540 and 0.18 of the difference between the self‑employed person’s estimated annual income for that year and $12,000. |
| | An amount equal to the sum of $600 and 0.20 of the difference between the self‑employed person’s estimated annual income for that year and $12,000. |
| | An amount equal to the sum of $630 and 0.21 of the difference between the self‑employed person’s estimated annual income for that year and $12,000. |
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| | An amount equal to 8% of the self‑employed person’s estimated annual income for that year, subject to a maximum of $7,680. |
| | An amount equal to 9% of the self‑employed person’s estimated annual income for that year, subject to a maximum of $8,640. |
| | An amount equal to 10% of the self‑employed person’s estimated annual income for that year, subject to a maximum of $9,600. |
| | An amount equal to 10.5% of the self‑employed person’s estimated annual income for that year, subject to a maximum of $10,080. |
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