The types to apply tax on installment.
| Member | Value | Description |
|---|---|---|
| toiProportionally | 0 | Adds the tax amount proportionally to each installment. |
| toiTaxInFirst | 1 | Adds the tax amount to the first installment. |
| toiTaxInFirstOnly | 2 | Adds the tax amount to the first installment only. |