diff --git a/src/services/accounting-service.js b/src/services/accounting-service.js
index dec635f..2f9333a 100644
--- a/src/services/accounting-service.js
+++ b/src/services/accounting-service.js
@@ -430,9 +430,16 @@ async function getTaxSummary({ startDate, endDate, accountingMethod = 'Accrual'
     }
 
     const nontaxableSales = totalSales - totalTaxable;
+
+    const roundTotalSales = Math.round(totalSales);
+    const roundTotalTaxable = Math.round(totalTaxable);
+    const roundNontaxable = roundTotalSales - roundTotalTaxable;  // derived, prevents drift
+
     const rows = Object.entries(agg).map(([rateId, amounts]) => {
         const info = rateMap[rateId] || { name: `Tax Rate ${rateId}`, rateValue: 0 };
         const ratePct = info.rateValue.toFixed(3).replace(/0+$/, '').replace(/\.$/, '');
+        const roundTaxable = Math.round(amounts.taxableSales);
+        const roundNontaxableJurisdiction = roundTotalSales - roundTaxable;
         return {
             type: 'Section',
             Header: {
@@ -448,9 +455,9 @@ async function getTaxSummary({ startDate, endDate, accountingMethod = 'Accrual'
             Summary: {
                 ColData: [
                     { value: 'Total' },
-                    { value: totalSales.toFixed(2) },
-                    { value: nontaxableSales.toFixed(2) },
-                    { value: amounts.taxableSales.toFixed(2) },
+                    { value: String(roundTotalSales) },
+                    { value: String(roundNontaxableJurisdiction) },
+                    { value: String(roundTaxable) },
                     { value: amounts.taxCollected.toFixed(2) },
                     { value: `${ratePct}%` }
                 ]
@@ -478,9 +485,9 @@ async function getTaxSummary({ startDate, endDate, accountingMethod = 'Accrual'
         Summary: {
             ColData: [
                 { value: 'Total' },
-                { value: totalSales.toFixed(2) },
-                { value: nontaxableSales.toFixed(2) },
-                { value: totalTaxable.toFixed(2) },
+                { value: String(roundTotalSales) },
+                { value: String(roundNontaxable) },
+                { value: String(roundTotalTaxable) },
                 { value: grandTaxCollected.toFixed(2) },
                 { value: '' }
             ]