diff --git a/apps/api/src/app/portfolio/portfolio-calculator-baln-buy-and-sell.spec.ts b/apps/api/src/app/portfolio/portfolio-calculator-baln-buy-and-sell.spec.ts
index e378f15cd..c66323c72 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator-baln-buy-and-sell.spec.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator-baln-buy-and-sell.spec.ts
@@ -82,7 +82,7 @@ describe('PortfolioCalculator', () => {
             averagePrice: new Big('0'),
             currency: 'CHF',
             dataSource: 'YAHOO',
-            fees: new Big('3.2'),
+            fee: new Big('3.2'),
             firstBuyDate: '2021-11-22',
             grossPerformance: new Big('-12.6'),
             grossPerformancePercentage: new Big('-0.0440867739678096571'),
diff --git a/apps/api/src/app/portfolio/portfolio-calculator-baln-buy.spec.ts b/apps/api/src/app/portfolio/portfolio-calculator-baln-buy.spec.ts
index 6d12fa103..9f49c13e0 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator-baln-buy.spec.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator-baln-buy.spec.ts
@@ -71,7 +71,7 @@ describe('PortfolioCalculator', () => {
             averagePrice: new Big('136.6'),
             currency: 'CHF',
             dataSource: 'YAHOO',
-            fees: new Big('1.55'),
+            fee: new Big('1.55'),
             firstBuyDate: '2021-11-30',
             grossPerformance: new Big('24.6'),
             grossPerformancePercentage: new Big('0.09004392386530014641'),
diff --git a/apps/api/src/app/portfolio/portfolio-calculator-btcusd-buy-and-sell-partially.spec.ts b/apps/api/src/app/portfolio/portfolio-calculator-btcusd-buy-and-sell-partially.spec.ts
index 93ef8bba0..666ce2167 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator-btcusd-buy-and-sell-partially.spec.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator-btcusd-buy-and-sell-partially.spec.ts
@@ -82,7 +82,7 @@ describe('PortfolioCalculator', () => {
             averagePrice: new Big('320.43'),
             currency: 'CHF',
             dataSource: 'YAHOO',
-            fees: new Big('0'),
+            fee: new Big('0'),
             firstBuyDate: '2015-01-01',
             grossPerformance: new Big('27172.74'),
             grossPerformancePercentage: new Big('42.40043067128546016291'),
diff --git a/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell-partially.spec.ts b/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell-partially.spec.ts
index 1d551a19b..6adfc9347 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell-partially.spec.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell-partially.spec.ts
@@ -82,7 +82,7 @@ describe('PortfolioCalculator', () => {
             averagePrice: new Big('75.80'),
             currency: 'CHF',
             dataSource: 'YAHOO',
-            fees: new Big('4.25'),
+            fee: new Big('4.25'),
             firstBuyDate: '2022-03-07',
             grossPerformance: new Big('21.93'),
             grossPerformancePercentage: new Big('0.14465699208443271768'),
diff --git a/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell.spec.ts b/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell.spec.ts
index 9a054c1c5..e41016109 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell.spec.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator-novn-buy-and-sell.spec.ts
@@ -102,7 +102,7 @@ describe('PortfolioCalculator', () => {
             averagePrice: new Big('0'),
             currency: 'CHF',
             dataSource: 'YAHOO',
-            fees: new Big('0'),
+            fee: new Big('0'),
             firstBuyDate: '2022-03-07',
             grossPerformance: new Big('19.86'),
             grossPerformancePercentage: new Big('0.13100263852242744063'),
diff --git a/apps/api/src/app/portfolio/portfolio-calculator.ts b/apps/api/src/app/portfolio/portfolio-calculator.ts
index 8edd552b7..f99defd53 100644
--- a/apps/api/src/app/portfolio/portfolio-calculator.ts
+++ b/apps/api/src/app/portfolio/portfolio-calculator.ts
@@ -431,7 +431,7 @@ export class PortfolioCalculator {
           : item.investment.div(item.quantity),
         currency: item.currency,
         dataSource: item.dataSource,
-        fees: item.fee,
+        fee: item.fee,
         firstBuyDate: item.firstBuyDate,
         grossPerformance: !hasErrors ? grossPerformance ?? null : null,
         grossPerformancePercentage: !hasErrors
diff --git a/apps/api/src/app/portfolio/portfolio.service.ts b/apps/api/src/app/portfolio/portfolio.service.ts
index 6b8783f00..6700eda99 100644
--- a/apps/api/src/app/portfolio/portfolio.service.ts
+++ b/apps/api/src/app/portfolio/portfolio.service.ts
@@ -746,7 +746,7 @@ export class PortfolioService {
         averagePrice,
         currency,
         dataSource,
-        fees,
+        fee,
         firstBuyDate,
         marketPrice,
         quantity,
@@ -851,7 +851,7 @@ export class PortfolioService {
         averagePrice: averagePrice.toNumber(),
         dividendInBaseCurrency: dividendInBaseCurrency.toNumber(),
         feeInBaseCurrency: this.exchangeRateDataService.toCurrency(
-          fees.toNumber(),
+          fee.toNumber(),
           SymbolProfile.currency,
           userCurrency
         ),
diff --git a/libs/common/src/lib/interfaces/timeline-position.interface.ts b/libs/common/src/lib/interfaces/timeline-position.interface.ts
index 86583993f..beb13a352 100644
--- a/libs/common/src/lib/interfaces/timeline-position.interface.ts
+++ b/libs/common/src/lib/interfaces/timeline-position.interface.ts
@@ -5,7 +5,7 @@ export interface TimelinePosition {
   averagePrice: Big;
   currency: string;
   dataSource: DataSource;
-  fees: Big;
+  fee: Big;
   firstBuyDate: string;
   grossPerformance: Big;
   grossPerformancePercentage: Big;