> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gobl.org/llms.txt
> Use this file to discover all available pages before exploring further.

# RateValueDef

RateValueDef contains a percentage rate or fixed amount for a given date range.

## Schema ID

`https://gobl.org/draft-0/tax/regime-def#/$defs/RateValueDef`

## Properties

| Title      | Property    | Type                                      | Description                                                                                                                                                                                                     |
| ---------- | ----------- | ----------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Extensions | `ext`       | [tax.Extensions](/draft-0/tax/extensions) | Only apply this rate if one of the tags is present in the invoice. Tags \[]cbc.Key `json:"tags,omitempty" jsonschema:"title=Tags"` Ext map of keys that can be used to filter to determine if the rate applies. |
| Since      | `since`     | [cal.Date](/draft-0/cal/date)             | Date from which this value should be applied.                                                                                                                                                                   |
| Percent    | `percent`   | [num.Percentage](/draft-0/num/percentage) | Percent rate that should be applied                                                                                                                                                                             |
| Surcharge  | `surcharge` | [num.Percentage](/draft-0/num/percentage) | An additional surcharge to apply.                                                                                                                                                                               |
| Disabled   | `disabled`  | boolean                                   | When true, this value should no longer be used.                                                                                                                                                                 |