If you enabled the USA tax by advanced geocodes option (Tax Options) then this indicates the county code that will form part of the full tax geo code.

If you enabled the USA AVP sales tax system option (Tax Options), then this indicates the zip code that forms part of the full tax geo code.

This only applies when the Split code option is not enabled.

Indicates the zip code portion of tax geo code (if you are using the USA AVP sales tax system).

Specify the date from which values in the Current Sales Tax Rates fields are effective.

This date is used to establish which rate to use when processing a credit note or debit note against an existing sales invoice.

If the date of the invoice being credited or debited is earlier than the date specified here, then the entry made at the Previous sales tax fields is used instead.

Define a limit from which a second tax rate or value must apply to the unit selling price of an item (in accordance with the ruling in certain USA states).

This limit can be defined for each of the three tax levels (i.e. state, county or city).

The tax limit calculation is applied only if you select to calculate sales tax at line level (Tax Options).

Assign the current tax rates to the tax code. These rates are used to determine the taxable value of an invoice captured with this tax code.

The percentages/values you enter in these fields become effective on the date entered in the Effective date field in the Extended Tax Code Details pane.

Each time you change the current tax rate, an entry is automatically added to the table of effective tax rates, to build up a history of the tax rates previously used (see Extended Tax History Maintenance).

Enter the percentage of state tax to use to calculate the additional tax to apply when the value in the Item value field is reached.

Enter the state tax value to apply when the amount in the Item value field is reached.

Enter the percentage of county tax to use to calculate the additional tax to apply when the value in the Item value field is reached.

Enter the county tax value to apply when the amount in the Item value field is reached.

Enter the percentage of city tax to use to calculate the additional tax to apply when the value in the Item value field is reached.

Enter the city tax value to apply when the amount in the Item value field is reached.

Assign the previous tax rates to the tax code. These rates are used to determine the taxable value of an invoice captured with this tax code.

The values/percentages you enter in these fields are effective only up to the date entered in the Effective date field in the Extended Tax Codes Details pane.

The Previous sales tax rates are used instead of the Current sales tax rate whenever the date of an invoice being credited or debited is earlier than the date entered in the Effective date field.

You typically only enter previous sales tax rates when one or more of the tax rates and/or limits change.