# Tax adjustment report

**URL:** <https://discuss.tryton.org/t/tax-adjustment-report/964>\
**Category:** Feature\
**Tags:** accounting\
**Created:** [December 16, 2018, 1:30pm UTC](https://discuss.tryton.org/t/tax-adjustment-report/964 "2018-12-16T13:30:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ced](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/ced/32/1237_2.png) [@ced](https://discuss.tryton.org/u/ced)\
**Post date:** [December 16, 2018, 1:30pm UTC](https://discuss.tryton.org/t/tax-adjustment-report/964/1 "2018-12-16T13:30:22Z")

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Continuing the discussion from [VAT adjustment report](https://discuss.tryton.org/t/vat-adjustment-report/962/2):

## Rational

There is a need to be able to report taxes differently than the standard way because it is an adjustment from a previous report.  
France has this need for credit note for invoice made on a previous period.  
Belgium has this need when an error was made in previous report which is not corrected by a document like invoice or credit note.

## Proposal

We add on `account.tax.line` a boolean `adjustment`.  
The `account.tax.code.line` has a selection to compute the amount with `adjustment` or not or both (default both).  
The `account.invoice.line` and `account.invoice.tax` has a boolean flag to fill the `adjustment` on linked `account.tax.line`.

The account chart modules should be updated if needed.

## Implementation