diff --git a/src/Model/AccountBalance.php b/src/Model/AccountBalance.php
new file mode 100644
index 0000000..2dea223
--- /dev/null
+++ b/src/Model/AccountBalance.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace ThePay\ApiClient\Model;
+
+final class AccountBalance
+{
+    /** @var non-empty-string */
+    private $iban;
+    /** @var non-empty-string */
+    private $accountName;
+    /** @var array<non-empty-string, numeric-string> */
+    private $balances;
+
+    /**
+     * @param non-empty-string $iban
+     * @param non-empty-string $accountName
+     * @param array<non-empty-string, numeric-string> $balances key is ISO 4217 currency code, value is balance in smallest unit of currency
+     */
+    public function __construct(
+        $iban,
+        $accountName,
+        array $balances
+    ) {
+        $this->iban = $iban;
+        $this->accountName = $accountName;
+        $this->balances = $balances;
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function getIban()
+    {
+        return $this->iban;
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public function getAccountName()
+    {
+        return $this->accountName;
+    }
+
+    /**
+     * @return array<non-empty-string, numeric-string>
+     */
+    public function getBalances()
+    {
+        return $this->balances;
+    }
+}
diff --git a/src/Service/ApiService.php b/src/Service/ApiService.php
index d1119d7..4c081ca 100644
--- a/src/Service/ApiService.php
+++ b/src/Service/ApiService.php
@@ -7,6 +7,7 @@
 use ThePay\ApiClient\Filter\TransactionFilter;
 use ThePay\ApiClient\Http\HttpResponse;
 use ThePay\ApiClient\Http\HttpServiceInterface;
+use ThePay\ApiClient\Model\AccountBalance;
 use ThePay\ApiClient\Model\ApiResponse;
 use ThePay\ApiClient\Model\Collection\PaymentCollection;
 use ThePay\ApiClient\Model\Collection\PaymentMethodCollection;
@@ -108,6 +109,47 @@ public function getActivePaymentMethods(LanguageCode $languageCode = null)
         return new PaymentMethodCollection($response->getBody());
     }
 
+    /**
+     * @see https://dataapi21.docs.apiary.io/#reference/data-retrieval/transactions/get-balance-history
+     *
+     * @param int|null $projectId
+     *
+     * @return array<AccountBalance>
+     */
+    public function getAccountsBalances(StringValue $accountIban = null, $projectId = null, \DateTime $balanceAt = null)
+    {
+        $arguments = array();
+        if ($accountIban !== null) {
+            $arguments['account_iban'] = $accountIban->getValue();
+        }
+        if ($projectId !== null) {
+            $arguments['project_id'] = $projectId;
+        }
+        if ($balanceAt) {
+            $arguments['balance_at'] = $balanceAt->format(\DateTime::ATOM);
+        }
+
+        $url = $this->url(array('balances'), $arguments, false);
+        $response = $this->httpService->get($url);
+
+        if ($response->getCode() !== 200) {
+            throw $this->buildException($url, $response);
+        }
+
+        $responseArray = Json::decode($response->getBody(), true);
+
+        return array_map(
+            static function (array $accountBalance) {
+                return new AccountBalance(
+                    $accountBalance['iban'],
+                    $accountBalance['name'],
+                    $accountBalance['balance']
+                );
+            },
+            $responseArray
+        );
+    }
+
     /**
      * @see https://dataapi21.docs.apiary.io/#reference/0/merchant-level-resources/get-account-transaction-history
      *
diff --git a/src/Service/ApiServiceInterface.php b/src/Service/ApiServiceInterface.php
index 6fee368..2ea52e1 100644
--- a/src/Service/ApiServiceInterface.php
+++ b/src/Service/ApiServiceInterface.php
@@ -6,6 +6,7 @@
 use ThePay\ApiClient\Filter\PaymentsFilter;
 use ThePay\ApiClient\Filter\TransactionFilter;
 use ThePay\ApiClient\Http\HttpServiceInterface;
+use ThePay\ApiClient\Model\AccountBalance;
 use ThePay\ApiClient\Model\ApiResponse;
 use ThePay\ApiClient\Model\Collection\PaymentCollection;
 use ThePay\ApiClient\Model\Collection\PaymentMethodCollection;
@@ -105,6 +106,15 @@ public function realizePaymentBySavedAuthorization(Identifier $parentPaymentUid,
      */
     public function getPayments(PaymentsFilter $filter, $page = 1, $limit = null);
 
+    /**
+     * @see https://dataapi21.docs.apiary.io/#reference/data-retrieval/transactions/get-balance-history
+     *
+     * @param int|null $projectId
+     *
+     * @return array<AccountBalance>
+     */
+    public function getAccountsBalances(StringValue $accountIban = null, $projectId = null, \DateTime $balanceAt = null);
+
     /**
      * @param TransactionFilter $filter
      * @param int $page
diff --git a/src/TheClient.php b/src/TheClient.php
index 6e49160..eb696ae 100644
--- a/src/TheClient.php
+++ b/src/TheClient.php
@@ -10,6 +10,7 @@
 use ThePay\ApiClient\Filter\TransactionFilter;
 use ThePay\ApiClient\Http\HttpCurlService;
 use ThePay\ApiClient\Http\HttpServiceInterface;
+use ThePay\ApiClient\Model\AccountBalance;
 use ThePay\ApiClient\Model\ApiResponse;
 use ThePay\ApiClient\Model\Collection\PaymentCollection;
 use ThePay\ApiClient\Model\Collection\PaymentMethodCollection;
@@ -82,6 +83,23 @@ public function getProjects()
         return $this->api->getProjects();
     }
 
+    /**
+     * @see https://dataapi21.docs.apiary.io/#reference/data-retrieval/transactions/get-balance-history
+     *
+     * @param string|null $accountIban
+     * @param int|null $projectId
+     *
+     * @return array<AccountBalance>
+     */
+    public function getAccountsBalances($accountIban = null, $projectId = null, \DateTime $balanceAt = null)
+    {
+        return $this->api->getAccountsBalances(
+            $accountIban !== null ? new StringValue($accountIban) : null,
+            $projectId,
+            $balanceAt
+        );
+    }
+
     /**
      * @param TransactionFilter $filter
      * @param int $page
diff --git a/tests/GetAccountsBalancesTest.php b/tests/GetAccountsBalancesTest.php
new file mode 100644
index 0000000..594101d
--- /dev/null
+++ b/tests/GetAccountsBalancesTest.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace ThePay\ApiClient\Tests;
+
+use ThePay\ApiClient\Http\HttpResponse;
+use ThePay\ApiClient\Http\HttpServiceInterface;
+use ThePay\ApiClient\Model\AccountBalance;
+use ThePay\ApiClient\TheClient;
+
+final class GetAccountsBalancesTest extends BaseTestCase
+{
+    /**
+     * @return void
+     */
+    public function test()
+    {
+        /** @var HttpServiceInterface $httpService */
+        $httpService = \Mockery::mock('ThePay\ApiClient\Http\HttpServiceInterface');
+        call_user_func(array($httpService, 'shouldReceive'), 'get')->once()
+            ->with($this->config->getApiUrl() . 'balances?account_iban=TP7811112150822790787055&project_id=1&balance_at=2023-03-14T15%3A08%3A44%2B00%3A00&merchant_id=' . self::MERCHANT_ID)
+            ->andReturn(
+                new HttpResponse(
+                    null,
+                    200,
+                    '',
+                    null,
+                    '[
+                        {
+                            "iban": "TP7811112150822790787055",
+                            "name": "Test",
+                            "balance": {
+                                "CZK": "45899",
+                                "EUR": "500"
+                            }
+                        }
+                    ]'
+                )
+            );
+
+        $client = new TheClient($this->config, null, $httpService);
+
+        $balances = $client->getAccountsBalances('TP7811112150822790787055', 1, new \DateTime('2023-03-14 15:08:44+00:00'));
+        self::assertEquals(
+            array(
+                new AccountBalance(
+                    'TP7811112150822790787055',
+                    'Test',
+                    array('CZK' => '45899', 'EUR' => '500')
+                ),
+            ),
+            $balances
+        );
+
+        \Mockery::close();
+    }
+}
diff --git a/tests/Mocks/Service/ApiMockService.php b/tests/Mocks/Service/ApiMockService.php
index 09febb5..f2d477e 100644
--- a/tests/Mocks/Service/ApiMockService.php
+++ b/tests/Mocks/Service/ApiMockService.php
@@ -627,4 +627,9 @@ public function generatePaymentConfirmationPdf(Identifier $uid, LanguageCode $la
     {
         return 'test content';
     }
+
+    public function getAccountsBalances(StringValue $accountIban = null, $projectId = null, \DateTime $balanceAt = null)
+    {
+        return array();
+    }
 }