diff --git a/package.json b/package.json
index f3a691d..69ce85f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@uniswap/router-sdk",
-  "version": "1.7.1",
+  "version": "1.7.2",
   "description": "An sdk for routing swaps using Uniswap v2 and Uniswap v3.",
   "publishConfig": {
     "access": "public"
diff --git a/src/entities/trade.ts b/src/entities/trade.ts
index c018763..5615924 100644
--- a/src/entities/trade.ts
+++ b/src/entities/trade.ts
@@ -198,9 +198,7 @@ export class Trade<TInput extends Currency, TOutput extends Currency, TTradeType
       return this._priceImpact
     }
 
-    if (this.outputTax.equalTo(ONE_HUNDRED_PERCENT)) {
-      throw new Error('Unable to calculate price impact for a 100% buy-tax token')
-    }
+    if (this.outputTax.equalTo(ONE_HUNDRED_PERCENT)) return ZERO_PERCENT
 
     let spotOutputAmount = CurrencyAmount.fromRawAmount(this.outputAmount.currency, 0)
     for (const { route, inputAmount } of this.swaps) {