diff --git a/src/app/api/fee-compare/route.ts b/src/app/api/fee-compare/route.ts
index b4f9e2e1..d6d53301 100644
--- a/src/app/api/fee-compare/route.ts
+++ b/src/app/api/fee-compare/route.ts
@@ -132,6 +132,7 @@ type GainsApiTrade = {
       realizedTradingFeesCollateral?: number;
       realizedFundingFeesCollateral?: number;
       realizedNewBorrowingFeesCollateral?: number;
+      realizedOldBorrowingFeesCollateral?: number;
     };
   };
 };
@@ -180,8 +181,7 @@ type HlWalletData = {
 
 type GainsWalletData = {
   events: number;
-  feesUsdc: number;       // pure taker fee only (uiRealizedPnlData)
-  vaultFeesUsdc: number;  // OI imbalance vault surcharge (tradeFeesData - uiRealizedPnlData)
+  feesUsdc: number;
   fundingFeesUsdc: number;
   fundingEstimated: boolean;
   borrowingFeesUsdc: number;
@@ -193,8 +193,7 @@ type GainsWalletData = {
     pair: string;
     action: string;
     notional: number;
-    tradingFee: number;  // taker fee only
-    vaultFee: number;    // OI vault surcharge
+    tradingFee: number;
     fundingFee: number;
     borrowingFee: number;
     equivFee?: number;   // equivalent fee on the other venue
@@ -1525,23 +1524,20 @@ export async function GET(req: Request) {
         const otherSlug = slug === venueA ? venueB : venueA;
         const otherRate = slug === venueA ? rateB : rateA;
         let feesUsdc = 0;
-        let vaultFeesUsdc = 0;
         let fundingFeesUsdc = 0;
         let borrowingFeesUsdc = 0;
         let notionalUsd = 0;
         const recentTrades: GainsWalletData["recentTrades"] = [];
 
         for (const t of usdcTrades) {
-          // uiRealizedPnlData = pure taker fee; tradeFeesData = taker + OI vault surcharge
+          // Gains settles carry (funding + borrowing) on every action, not just closes.
+          // uiRealizedPnlData breaks down taker, funding, and borrowing separately — use it for all.
           const takerFee = t.meta?.uiRealizedPnlData?.realizedTradingFeesCollateral
             ?? t.meta?.tradeFeesData?.realizedTradingFeesCollateral ?? 0;
-          const totalTradingFee = t.meta?.tradeFeesData?.realizedTradingFeesCollateral ?? takerFee;
-          const vaultFee = Math.max(0, totalTradingFee - takerFee);
-          const isClose = CLOSE_ACTIONS.has(t.action);
-          const fundingFee = isClose ? (t.meta?.uiRealizedPnlData?.realizedFundingFeesCollateral ?? 0) : 0;
-          const borrowingFee = isClose ? (t.meta?.uiRealizedPnlData?.realizedNewBorrowingFeesCollateral ?? 0) : 0;
+          const fundingFee = t.meta?.uiRealizedPnlData?.realizedFundingFeesCollateral ?? 0;
+          const borrowingFee = (t.meta?.uiRealizedPnlData?.realizedNewBorrowingFeesCollateral ?? 0)
+            + (t.meta?.uiRealizedPnlData?.realizedOldBorrowingFeesCollateral ?? 0);
           feesUsdc += takerFee;
-          vaultFeesUsdc += vaultFee;
           fundingFeesUsdc += fundingFee;
           borrowingFeesUsdc += borrowingFee;
           const tradeNotional = t.size * t.leverage;
@@ -1550,7 +1546,7 @@ export async function GET(req: Request) {
             const equivFee = otherSlug === "hyperliquid"
               ? tradeNotional * (gainsData.perSide[t.pair.split("/")[0]] ?? otherRate)
               : tradeNotional * otherRate;
-            recentTrades.push({ date: t.date, pair: t.pair, action: t.action, notional: tradeNotional, tradingFee: takerFee, vaultFee, fundingFee, borrowingFee, equivFee, pnl_net: t.pnl_net });
+            recentTrades.push({ date: t.date, pair: t.pair, action: t.action, notional: tradeNotional, tradingFee: takerFee, fundingFee, borrowingFee, equivFee, pnl_net: t.pnl_net });
           }
         }
 
@@ -1566,17 +1562,16 @@ export async function GET(req: Request) {
           }
         }
 
-        const netCostUsdc = feesUsdc + vaultFeesUsdc + fundingFeesUsdc + borrowingFeesUsdc;
+        const netCostUsdc = feesUsdc + fundingFeesUsdc + borrowingFeesUsdc;
         walletData = {
           events: usdcTrades.length,
           feesUsdc,
-          vaultFeesUsdc,
           fundingFeesUsdc,
           fundingEstimated,
           borrowingFeesUsdc,
           netCostUsdc,
           positionSizeUsdc: notionalUsd,
-          avgFeeRateBps: notionalUsd > 0 ? (feesUsdc / notionalUsd) * 10000 : 0,
+          avgFeeRateBps: notionalUsd > 0 ? (netCostUsdc / notionalUsd) * 10000 : 0,
           recentTrades,
         } satisfies GainsWalletData;
       } else if (fetchEvmWallet && slug === "gmx-v2" && gmxWalletData) {
diff --git a/src/components/fee-compare-client.tsx b/src/components/fee-compare-client.tsx
index 59c816dd..736879dc 100644
--- a/src/components/fee-compare-client.tsx
+++ b/src/components/fee-compare-client.tsx
@@ -75,7 +75,6 @@ type HlWalletData = {
 type GainsWalletData = {
   events: number;
   feesUsdc: number;
-  vaultFeesUsdc: number;
   fundingFeesUsdc: number;
   fundingEstimated: boolean;
   borrowingFeesUsdc: number;
@@ -88,7 +87,6 @@ type GainsWalletData = {
     action: string;
     notional: number;
     tradingFee: number;
-    vaultFee: number;
     fundingFee: number;
     borrowingFee: number;
     equivFee?: number;
@@ -735,7 +733,6 @@ function WalletSide({
       })()}
       {venue.slug === "gains" && (() => {
         const gW = w as GainsWalletData;
-        const hasVault = (gW.vaultFeesUsdc ?? 0) > 0.5;
         const hasFunding = Math.abs(gW.fundingFeesUsdc) > 0.5;
         const hasBorrowing = gW.borrowingFeesUsdc > 0.5;
         return (
@@ -752,19 +749,6 @@ function WalletSide({
                 <p className="text-[11px] text-ink-faint">Taker fees</p>
                 <p className="font-mono text-xs font-semibold text-ink">{fmtUsd(gW.feesUsdc)}</p>
               </div>
-              {hasVault && (
-                <>
-                  <div className="flex items-center justify-between">
-                    <p className="text-[11px] text-ink-faint">Vault fee</p>
-                    <p className="font-mono text-xs font-semibold text-amber-500">
-                      +{fmtUsd(gW.vaultFeesUsdc)}
-                    </p>
-                  </div>
-                  <p className="text-[10px] text-ink-faint/60 leading-snug">
-                    Gains charges an extra fee to LPs when your trade increases the long/short imbalance. Hyperliquid does not have this — it uses funding rates instead.
-                  </p>
-                </>
-              )}
               {hasFunding && (
                 <div className="flex items-center justify-between">
                   <p className="text-[11px] text-ink-faint">
@@ -1202,8 +1186,7 @@ function GainsTradeTable({
           </thead>
           <tbody>
             {rows.map((t, i) => {
-              const hasVault = (t.vaultFee ?? 0) > 0.001;
-              const netCost = t.tradingFee + (t.vaultFee ?? 0) + t.fundingFee + t.borrowingFee;
+              const netCost = t.tradingFee + t.fundingFee + t.borrowingFee;
               const diff = hasEquiv && t.equivFee !== undefined ? t.equivFee - netCost : undefined;
               return (
               <tr key={i} className="border-b border-ink/5 last:border-0 hover:bg-ink/2 transition-colors">
@@ -1225,7 +1208,6 @@ function GainsTradeTable({
                   <p className="font-mono text-xs font-bold text-ink">{fmtUsd(netCost)}</p>
                   <p className="text-[10px] text-ink-faint/70 mt-0.5 whitespace-nowrap">
                     {fmtUsd(t.tradingFee)} taker
-                    {hasVault ? ` +${fmtUsd(t.vaultFee)} vault LP` : ""}
                     {t.borrowingFee > 0.001 ? ` +${fmtUsd(t.borrowingFee)} borrow` : ""}
                     {Math.abs(t.fundingFee) > 0.001
                       ? ` ${t.fundingFee > 0 ? "+" : "−"}${fmtUsd(Math.abs(t.fundingFee))} fund`