diff --git a/packages/desktop/lib/electron/managers/transak.manager.ts b/packages/desktop/lib/electron/managers/transak.manager.ts
index 6dff3c91f0..00af4cab2b 100644
--- a/packages/desktop/lib/electron/managers/transak.manager.ts
+++ b/packages/desktop/lib/electron/managers/transak.manager.ts
@@ -202,7 +202,7 @@ export default class TransakManager implements ITransakManager {
     }
 
     private getUrl(data: ITransakWindowData): string {
-        const { address, currency, service } = data
+        const { address, currency, service, amount } = data
         const apiKey = process.env.TRANSAK_API_KEY
 
         if (!Object.values(MarketCurrency).includes(currency as MarketCurrency)) {
@@ -216,7 +216,7 @@ export default class TransakManager implements ITransakManager {
         const queryParams = {
             apiKey,
             defaultFiatCurrency: currency,
-            defaultCryptoAmount: 100,
+            defaultFiatAmount: amount,
             walletAddress: address,
             productsAvailed: service,
             cryptoCurrencyCode: 'IOTA',
diff --git a/packages/desktop/lib/electron/processes/main.process.ts b/packages/desktop/lib/electron/processes/main.process.ts
index 7dfcfaea8c..037fb1cfde 100644
--- a/packages/desktop/lib/electron/processes/main.process.ts
+++ b/packages/desktop/lib/electron/processes/main.process.ts
@@ -34,6 +34,7 @@ import { shouldReportError } from '../utils/error.utils'
 import { ensureDirectoryExistence } from '../utils/file-system.utils'
 import { getMachineId } from '../utils/os.utils'
 import { registerPowerMonitorListeners } from '../listeners'
+import { ITransakWindowData } from '@core/app/interfaces'
 
 export let appIsReady = false
 
@@ -374,9 +375,7 @@ export function getOrInitWindow(windowName: string, ...args: unknown[]): Browser
             case 'error':
                 return openErrorWindow()
             case 'transak':
-                return transakManager?.openWindow(
-                    args[0] as { currency: string; address: string; service: 'BUY' | 'SELL' }
-                )
+                return transakManager?.openWindow(args[0] as ITransakWindowData)
             default:
                 throw Error(`Window ${windowName} not found`)
         }
diff --git a/packages/desktop/views/dashboard/buy-sell/views/BuySellMainView.svelte b/packages/desktop/views/dashboard/buy-sell/views/BuySellMainView.svelte
index 1ae9b58eda..b22f536cdf 100644
--- a/packages/desktop/views/dashboard/buy-sell/views/BuySellMainView.svelte
+++ b/packages/desktop/views/dashboard/buy-sell/views/BuySellMainView.svelte
@@ -12,6 +12,8 @@
         TransakWindowPlaceholder,
     } from '../components'
     import { isDashboardSideBarExpanded } from '@core/ui'
+    import { MarketCoinId, MarketCurrency } from '@core/market/enums'
+    import { marketCoinPrices } from '@core/market/stores'
     import { DrawerState } from '@desktop/auxiliary/drawer/types'
     import { drawerState } from '@desktop/auxiliary/drawer/stores'
 
@@ -59,12 +61,37 @@
         })
     }
 
+    function getDefaultFiatAmount(currency: MarketCurrency): number {
+        switch (currency) {
+            case MarketCurrency.Usd:
+            case MarketCurrency.Eur:
+            case MarketCurrency.Gbp:
+                return 100
+            default: {
+                const conversionRate =
+                    $marketCoinPrices[MarketCoinId.Iota]?.[currency] /
+                    $marketCoinPrices[MarketCoinId.Iota]?.[MarketCurrency.Usd]
+                const fiatAmount = 100 * conversionRate
+                const roundedAmount = customRound(fiatAmount)
+                return roundedAmount
+            }
+        }
+    }
+
+    function customRound(number) {
+        const magnitude = Math.pow(10, Math.floor(Math.log10(number)))
+        return magnitude <= 10
+            ? Math.round(number / magnitude) * magnitude
+            : Math.round((number / magnitude) * 10) * (magnitude / 10)
+    }
+
     async function resetTransak(): Promise<void> {
         await Platform.closeTransak()
         await Platform.openTransak({
             currency: $activeProfile?.settings.marketCurrency,
             address: $selectedAccount.depositAddress,
             service: 'BUY',
+            amount: getDefaultFiatAmount($activeProfile?.settings.marketCurrency ?? MarketCurrency.Usd),
         })
         await updateTransakBounds()
     }
diff --git a/packages/shared/src/lib/core/app/interfaces/transak-window-data.interface.ts b/packages/shared/src/lib/core/app/interfaces/transak-window-data.interface.ts
index c60397178d..bfec2f07c6 100644
--- a/packages/shared/src/lib/core/app/interfaces/transak-window-data.interface.ts
+++ b/packages/shared/src/lib/core/app/interfaces/transak-window-data.interface.ts
@@ -2,4 +2,5 @@ export interface ITransakWindowData {
     currency: string
     address: string
     service: 'BUY' | 'SELL'
+    amount: number
 }