diff --git a/cypress/e2e/transaction-import.cy.ts b/cypress/e2e/transaction-import.cy.ts
index 62de218d..c94a1655 100644
--- a/cypress/e2e/transaction-import.cy.ts
+++ b/cypress/e2e/transaction-import.cy.ts
@@ -154,7 +154,7 @@ describe('Transaction Import', () => {
 
     // Now at the last transaction, import this too
     cy.contains('5 of 5')
-    cy.getInputFor('Available From').should('have.value', '2023-06-01')
+    cy.getInputFor('Available From').should('have.value', '2023-07-01')
     cy.get('button').contains('Import').click()
 
     // Now back at the second transactions since we skipped it
diff --git a/cypress/e2e/transactions.cy.ts b/cypress/e2e/transactions.cy.ts
index 227e561b..127a5f91 100644
--- a/cypress/e2e/transactions.cy.ts
+++ b/cypress/e2e/transactions.cy.ts
@@ -6,15 +6,13 @@ import {
   createTransactions,
 } from '../support/setup'
 import { Budget, Account, Envelope } from '../../src/types'
-import { dateFromIsoString } from '../../src/lib/dates'
+import { dateFromIsoString, setToFirstOfNextMonth } from '../../src/lib/dates'
 
 describe('Transactions', () => {
   const date = new Date()
 
   // Get the current month in YYYY-MM-01 format
-  const currentMonth = `${new Date(Date.now())
-    .toISOString()
-    .substring(0, 7)}-01`
+  const currentMonth = `${date.toISOString().substring(0, 7)}-01`
 
   beforeEach(() => {
     // prepare a budget with two internal & one external accounts
@@ -112,6 +110,11 @@ describe('Transactions', () => {
     cy.getAutocompleteFor('Destination').type('Bank ac')
     cy.contains('Bank account').click()
 
+    cy.getInputFor('Available From').should(
+      'have.value',
+      setToFirstOfNextMonth(dateFromIsoString(date.toISOString()))
+    )
+
     cy.getInputFor('Available From').type(currentMonth)
     cy.getInputFor('Available From').should('have.value', currentMonth)
 
diff --git a/src/components/TransactionForm.tsx b/src/components/TransactionForm.tsx
index d9a63450..af1737e5 100644
--- a/src/components/TransactionForm.tsx
+++ b/src/components/TransactionForm.tsx
@@ -9,6 +9,7 @@ import {
   dateToIsoString,
   monthYearFromDate,
   setToFirstOfTheMonth,
+  setToFirstOfNextMonth,
 } from '../lib/dates'
 import { safeName } from '../lib/name-helper'
 import {
@@ -117,6 +118,18 @@ const TransactionForm = ({ budget, setNotification }: Props) => {
     setTransaction({ ...transaction, [key]: value })
   }
 
+  const updateValues = (
+    values: { key: keyof UnpersistedTransaction; value: any }[]
+  ) => {
+    const newTransaction = { ...transaction }
+    values.forEach(
+      (value: { key: keyof UnpersistedTransaction; value: any }) => {
+        newTransaction[value.key] = value.value
+      }
+    )
+    setTransaction(newTransaction)
+  }
+
   const createNewResources = async () => {
     const promises = []
     let { sourceAccountId, destinationAccountId } = transaction
@@ -394,7 +407,15 @@ const TransactionForm = ({ budget, setNotification }: Props) => {
               onChange={e => {
                 // value is empty string for invalid dates (e.g. when prefixing month with 0 while typing) – we want to ignore that and keep the previous input
                 if (e.target.value) {
-                  updateValue('date', dateToIsoString(e.target.value))
+                  updateValues([
+                    { key: 'date', value: dateToIsoString(e.target.value) },
+                    {
+                      key: 'availableFrom',
+                      value: dateToIsoString(
+                        setToFirstOfNextMonth(e.target.value)
+                      ),
+                    },
+                  ])
                 }
               }}
               options={{ disabled: transaction.reconciled || false }}
@@ -412,11 +433,12 @@ const TransactionForm = ({ budget, setNotification }: Props) => {
                 }`}
                 value={(isSupported.inputTypeMonth()
                   ? (date: string) => monthYearFromDate(new Date(date))
-                  : (date: string) =>
-                      setToFirstOfTheMonth(dateFromIsoString(date)))(
-                  transaction.availableFrom ||
-                    transaction.date ||
-                    new Date().toISOString()
+                  : (date: string) => date)(
+                  dateFromIsoString(transaction.availableFrom || '') ||
+                    setToFirstOfNextMonth(
+                      dateFromIsoString(transaction.date || '') ||
+                        new Date().toISOString()
+                    )
                 )}
                 onChange={e => {
                   // value is empty string for invalid dates (e.g. when prefixing month with 0 while typing) – we want to ignore that and keep the previous input
diff --git a/src/components/TransactionImport/Result.tsx b/src/components/TransactionImport/Result.tsx
index 2f957ffe..50e46731 100644
--- a/src/components/TransactionImport/Result.tsx
+++ b/src/components/TransactionImport/Result.tsx
@@ -22,6 +22,7 @@ import {
   dateToIsoString,
   monthYearFromDate,
   setToFirstOfTheMonth,
+  setToFirstOfNextMonth,
 } from '../../lib/dates'
 import { api } from '../../lib/api/base'
 import { safeName } from '../../lib/name-helper'
@@ -436,7 +437,7 @@ const Result = (props: Props) => {
                 value={(isSupported.inputTypeMonth()
                   ? (date: string) => monthYearFromDate(new Date(date))
                   : (date: string) =>
-                      setToFirstOfTheMonth(dateFromIsoString(date)))(
+                      setToFirstOfNextMonth(dateFromIsoString(date)))(
                   currentTransaction().availableFrom ||
                     currentTransaction().date ||
                     new Date().toISOString()
diff --git a/src/lib/dates.ts b/src/lib/dates.ts
index 4c5557f4..19c06a8d 100644
--- a/src/lib/dates.ts
+++ b/src/lib/dates.ts
@@ -28,12 +28,22 @@ const setToFirstOfTheMonth = (date: string) => {
   return `${year}-${month}-01`
 }
 
+const setToFirstOfNextMonth = (date: string) => {
+  const d = new Date(date)
+  d.setDate(1)
+  d.setMonth(d.getMonth() + 1)
+
+  // Return date in YYYY-MM-DD format
+  return dateFromIsoString(d.toISOString())
+}
+
 export {
   dateFromIsoString,
   dateToIsoString,
   monthYearFromDate,
   dateFromMonthYear,
   setToFirstOfTheMonth,
+  setToFirstOfNextMonth,
   translatedMonthFormat,
   shortTranslatedMonthFormat,
 }