# Modification in Comparison table
There can be a situation when taxes will be lower in the new calculation thus you may want them to be refunded. In these cases, you may need to add a new tax. Below are few examples how to modify info**r**mation in the comparison table.
**TAX Refund**
New ZO tax is lower and the difference can be refunded, therefore the relevant switch in the *Do refund* column is on. **Please note that the refunded ZO tax cannot be used to partly compensate the difference in the YQ tax which must be** **additionally paid in whole.**
**ADD a new TAX**
The tax code and the amount can be entered now. The amount must be confirmed by clicking on *Please confirm your input*.
The amount must be confirmed by clicking on *Please confirm your input*.
**Modify TAX difference**
When there is a need to collect a tax difference higher than the one calculated by the system (in this example YQ CZK 85), the original amounts are crossed out and new ADC amount is calculated (CZK 290).
**Penalty as a TAX**
Penalty collected as a DU tax is shown in the Comparison table under taxes as well.
**Original Fare non-refundable, new fare lower value**
The new Fare is lower but because the original Fare is non-refundable, the remaining value is not refunded (the switch is not on and should not be changed manually).
**Example of Comparison table**
2 taxes are additionally collected – AY and XF (+292).\
2 taxes are refunded (-907), there is ADC for Fare (+468). \
The ADC for Fare can be compensated by the tax refund (907 - 468 = 439), ie. the refund is CZK 439. \
The refunded amount cannot compensate the ADC for taxes, which must be paid every time. \
It means the new ticket will be issued with ADC of CZK 292 and EMD for refundable balance of CZK 439.\
