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  • Values of the coefficients a and b for each set of formulas

    Single

    Weekly earnings (x) less than

    a

    b

    $580

    0.0000

    0.0000

    $620

    0.1900

    110.3481

    $668

    0.3150

    187.9418

    $711

    0.4150

    254.7841

    $835

    0.5527

    352.7630

    $963

    0.4727

    285.9214

    $1,282

    0.3477

    165.4431

    $1,730

    0.3450

    161.9808

    $3,461

    0.3900

    239.8654

    $3,461 & over

    0.4700

    516.7885

    Illness-separated

    Weekly earnings (x) less than

    a

    b

    $561

    0.0000

    0.0000

    $601

    0.1900

    106.6942

    $668

    0.3150

    181.8841

    $711

    0.4150

    248.7264

    $835

    0.5527

    346.7053

    $915

    0.4727

    279.8638

    $1,282

    0.3477

    165.4431

    $1,730

    0.3450

    161.9808

    $3,461

    0.3900

    239.8654

    $3,461 & over

    0.4700

    516.7885

    Member of a couple

    Weekly earnings (x) less than

    a

    b

    $517

    0.0000

    0.0000

    $557

    0.1900

    98.2712

    $668

    0.3150

    167.9202

    $711

    0.4150

    234.7625

    $803

    0.5527

    332.7413

    $835

    0.4277

    232.2846

    $1,282

    0.3477

    165.4431

    $1,730

    0.3450

    161.9808

    $3,461

    0.3900

    239.8654

    $3,461 & over

    0.4700

    516.7885

    Medicare levy parameters

    Weekly earnings threshold

    668

    Weekly earnings shade-in threshold

    835

    Medicare levy family threshold

    48,385

    Weekly family threshold divisor

    52

    Additional child

    3,406

    Shading out point multiplier

    0.1000

    Shading out point divisor

    0.0800

    Weekly levy adjustment factor

    668.4200

    Medicare levy

    0.0200

    Last modified: 14 Jun 2019QC 55456