diff --git a/account_de.xml b/account_de.xml
index d1147abbcb..18169185b5 100644
--- a/account_de.xml
+++ b/account_de.xml
@@ -10247,17 +10247,17 @@
 			<field name="account" ref="root_de"/>
 			<field name="description">19% USt</field>
 			<field name="type">percentage</field>
-			<field name="percentage">-19</field>
+			<field name="percentage" eval="Decimal('-19')"/>
 			<field name="invoice_account" ref="account_1774"/>
 			<field name="invoice_base_code" ref="tax_code_89"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_891"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1774"/>
 			<field name="credit_note_base_code" ref="tax_code_89"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_891"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 			<field name="parent" ref="tax_eu_19_purchase"/>
 		</record>
 		<record model="account.tax.template" id="tax_eu_19_purchase_vst">
@@ -10265,15 +10265,15 @@
 			<field name="account" ref="root_de"/>
 			<field name="description">19% VSt</field>
 			<field name="type">percentage</field>
-			<field name="percentage">19</field>
+			<field name="percentage" eval="Decimal('19')"/>
 			<field name="invoice_account" ref="account_1574"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_61"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1574"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_61"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 			<field name="parent" ref="tax_eu_19_purchase"/>
 		</record>
 		<record model="account.tax.template" id="tax_eu_7_purchase">
@@ -10288,17 +10288,17 @@
 			<field name="account" ref="root_de"/>
 			<field name="description">7% USt</field>
 			<field name="type">percentage</field>
-			<field name="percentage">-7</field>
+			<field name="percentage" eval="Decimal('-7')"/>
 			<field name="invoice_account" ref="account_1772"/>
 			<field name="invoice_base_code" ref="tax_code_89"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_931"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1772"/>
 			<field name="credit_note_base_code" ref="tax_code_89"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_931"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 			<field name="parent" ref="tax_eu_7_purchase"/>
 		</record>
 		<record model="account.tax.template" id="tax_eu_7_purchase_vst">
@@ -10306,15 +10306,15 @@
 			<field name="account" ref="root_de"/>
 			<field name="description">7% VSt</field>
 			<field name="type">percentage</field>
-			<field name="percentage">7</field>
+			<field name="percentage" eval="Decimal('7')"/>
 			<field name="invoice_account" ref="account_1572"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_61"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1572"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_61"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 			<field name="parent" ref="tax_eu_7_purchase"/>
 		</record>
 		<record model="account.tax.template" id="tax_eu_sale">
@@ -10323,15 +10323,15 @@
 			<field name="description">steuerfreie innergem. Lieferung</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_ust"/>
-			<field name="percentage">0</field>
+			<field name="percentage" eval="Decimal('0')"/>
 			<field name="invoice_account" ref="account_1770"/>
 			<field name="invoice_base_code" ref="tax_code_41"/>
-			<field name="invoice_base_sign">1</field>
-			<field name="invoice_tax_sign">1</field>
+			<field name="invoice_base_sign" eval="1"/>
+			<field name="invoice_tax_sign" eval="1"/>
 			<field name="credit_note_account" ref="account_1770"/>
 			<field name="credit_note_base_code" ref="tax_code_41"/>
-			<field name="credit_note_base_sign">-1</field>
-			<field name="credit_note_tax_sign">-1</field>
+			<field name="credit_note_base_sign" eval="-1"/>
+			<field name="credit_note_tax_sign" eval="-1"/>
 		</record>
 		<record model="account.tax.template" id="tax_export">
 			<field name="name">Steuerfreie Ausfuhr (§4 Nr. 1a UStG)</field>
@@ -10339,15 +10339,15 @@
 			<field name="description">steuerfreie Ausfuhr</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_ust"/>
-			<field name="percentage">0</field>
+			<field name="percentage" eval="Decimal('0')"/>
 			<field name="invoice_account" ref="account_1770"/>
 			<field name="invoice_base_code" ref="tax_code_43"/>
-			<field name="invoice_base_sign">1</field>
-			<field name="invoice_tax_sign">1</field>
+			<field name="invoice_base_sign" eval="1"/>
+			<field name="invoice_tax_sign" eval="1"/>
 			<field name="credit_note_account" ref="account_1770"/>
 			<field name="credit_note_base_code" ref="tax_code_43"/>
-			<field name="credit_note_base_sign">-1</field>
-			<field name="credit_note_tax_sign">-1</field>
+			<field name="credit_note_base_sign" eval="-1"/>
+			<field name="credit_note_tax_sign" eval="-1"/>
 		</record>
 		<record model="account.tax.template" id="tax_import_19">
 			<field name="name">19% Einfuhrumsatzsteuer</field>
@@ -10355,17 +10355,17 @@
 			<field name="description">19% EUSt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_vst"/>
-			<field name="percentage">19</field>
+			<field name="percentage" eval="Decimal('19')"/>
 			<field name="invoice_account" ref="account_1588"/>
 			<field name="invoice_base_code" ref="tax_code_BAUS19"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_62"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1588"/>
 			<field name="credit_note_base_code" ref="tax_code_BAUS19"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_62"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 		</record>
 		<record model="account.tax.template" id="tax_import_7">
 			<field name="name">7% Einfuhrumsatzsteuer</field>
@@ -10373,32 +10373,32 @@
 			<field name="description">7% EUSt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_vst_reduced"/>
-			<field name="percentage">7</field>
+			<field name="percentage" eval="Decimal('7')"/>
 			<field name="invoice_account" ref="account_1588"/>
 			<field name="invoice_base_code" ref="tax_code_BAUS7"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_62"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1588"/>
 			<field name="credit_note_base_code" ref="tax_code_BAUS7"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_62"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 		</record>
 		<record model="account.tax.template" id="tax_not_taxable">
 			<field name="name">nicht steuerbar</field>
 			<field name="account" ref="root_de"/>
 			<field name="description">nicht steuerbar</field>
 			<field name="type">percentage</field>
-			<field name="percentage">0</field>
+			<field name="percentage" eval="Decimal('0')"/>
 			<field name="invoice_account" ref="account_1770"/>
 			<field name="invoice_base_code" ref="tax_code_45"/>
-			<field name="invoice_base_sign">1</field>
-			<field name="invoice_tax_sign">1</field>
+			<field name="invoice_base_sign" eval="1"/>
+			<field name="invoice_tax_sign" eval="1"/>
 			<field name="credit_note_account" ref="account_1770"/>
 			<field name="credit_note_base_code" ref="tax_code_45"/>
-			<field name="credit_note_base_sign">-1</field>
-			<field name="credit_note_tax_sign">-1</field>
+			<field name="credit_note_base_sign" eval="-1"/>
+			<field name="credit_note_tax_sign" eval="-1"/>
 		</record>
 		<record model="account.tax.template" id="tax_ust_19">
 			<field name="name">19% Umsatzsteuer</field>
@@ -10406,17 +10406,17 @@
 			<field name="description">19% USt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_ust"/>
-			<field name="percentage">19</field>
+			<field name="percentage" eval="Decimal('19')"/>
 			<field name="invoice_account" ref="account_1776"/>
 			<field name="invoice_base_code" ref="tax_code_81"/>
-			<field name="invoice_base_sign">1</field>
+			<field name="invoice_base_sign" eval="1"/>
 			<field name="invoice_tax_code" ref="tax_code_811"/>
-			<field name="invoice_tax_sign">1</field>
+			<field name="invoice_tax_sign" eval="1"/>
 			<field name="credit_note_account" ref="account_1776"/>
 			<field name="credit_note_base_code" ref="tax_code_81"/>
-			<field name="credit_note_base_sign">-1</field>
+			<field name="credit_note_base_sign" eval="-1"/>
 			<field name="credit_note_tax_code" ref="tax_code_811"/>
-			<field name="credit_note_tax_sign">-1</field>
+			<field name="credit_note_tax_sign" eval="-1"/>
 		</record>
 		<record model="account.tax.template" id="tax_ust_7">
 			<field name="name">7% Umsatzsteuer</field>
@@ -10424,17 +10424,17 @@
 			<field name="description">7% USt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_ust"/>
-			<field name="percentage">7</field>
+			<field name="percentage" eval="Decimal('7')"/>
 			<field name="invoice_account" ref="account_1771"/>
 			<field name="invoice_base_code" ref="tax_code_86"/>
-			<field name="invoice_base_sign">1</field>
+			<field name="invoice_base_sign" eval="1"/>
 			<field name="invoice_tax_code" ref="tax_code_861"/>
-			<field name="invoice_tax_sign">1</field>
+			<field name="invoice_tax_sign" eval="1"/>
 			<field name="credit_note_account" ref="account_1771"/>
 			<field name="credit_note_base_code" ref="tax_code_86"/>
-			<field name="credit_note_base_sign">-1</field>
+			<field name="credit_note_base_sign" eval="-1"/>
 			<field name="credit_note_tax_code" ref="tax_code_861"/>
-			<field name="credit_note_tax_sign">-1</field>
+			<field name="credit_note_tax_sign" eval="-1"/>
 		</record>
 		<record model="account.tax.template" id="tax_vst_19">
 			<field name="name">19% Vorsteuer</field>
@@ -10442,17 +10442,17 @@
 			<field name="description">19% VSt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_vst"/>
-			<field name="percentage">19</field>
+			<field name="percentage" eval="Decimal('19')"/>
 			<field name="invoice_account" ref="account_1576"/>
 			<field name="invoice_base_code" ref="tax_code_BRV19"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_66"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1576"/>
 			<field name="credit_note_base_code" ref="tax_code_BRV19"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_66"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 		</record>
 		<record model="account.tax.template" id="tax_vst_7">
 			<field name="name">7% Vorsteuer</field>
@@ -10460,17 +10460,17 @@
 			<field name="description">7% VSt</field>
 			<field name="type">percentage</field>
 			<field name="group" ref="tax_group_vst_reduced"/>
-			<field name="percentage">7</field>
+			<field name="percentage" eval="Decimal('7')"/>
 			<field name="invoice_account" ref="account_1571"/>
 			<field name="invoice_base_code" ref="tax_code_BRV7"/>
-			<field name="invoice_base_sign">-1</field>
+			<field name="invoice_base_sign" eval="-1"/>
 			<field name="invoice_tax_code" ref="tax_code_66"/>
-			<field name="invoice_tax_sign">-1</field>
+			<field name="invoice_tax_sign" eval="-1"/>
 			<field name="credit_note_account" ref="account_1571"/>
 			<field name="credit_note_base_code" ref="tax_code_BRV7"/>
-			<field name="credit_note_base_sign">1</field>
+			<field name="credit_note_base_sign" eval="1"/>
 			<field name="credit_note_tax_code" ref="tax_code_66"/>
-			<field name="credit_note_tax_sign">1</field>
+			<field name="credit_note_tax_sign" eval="1"/>
 		</record>
 		<record model="account.tax.rule.template" id="tax_rule_eu_no_id_purchase">
 			<field name="name">Lieferant EU (ohne Ust-ID)</field>