diff --git a/ts/interfaces/csvparser.ts b/ts/abstractclasses/csvparser.ts
similarity index 69%
rename from ts/interfaces/csvparser.ts
rename to ts/abstractclasses/csvparser.ts
index fec8ca1..93992b1 100644
--- a/ts/interfaces/csvparser.ts
+++ b/ts/abstractclasses/csvparser.ts
@@ -1,5 +1,5 @@
 export abstract class AcCsvParser<T> {
   public abstract paymentProviderName: string;
   public abstract transactionArray: T[];
-  public abstract async getTransactions(): Promise<T[]>;
+  public abstract getTransactions(): Promise<T[]>;
 }
diff --git a/ts/abstractclasses/index.ts b/ts/abstractclasses/index.ts
new file mode 100644
index 0000000..7f76bbd
--- /dev/null
+++ b/ts/abstractclasses/index.ts
@@ -0,0 +1 @@
+export * from './csvparser';
diff --git a/ts/index.ts b/ts/index.ts
index dcb91b0..650abf5 100644
--- a/ts/index.ts
+++ b/ts/index.ts
@@ -1,3 +1,3 @@
-import * as plugins from './finplus-interfaces.plugins';
+export * from './abstractclasses';
+export * from './interfaces';
 
-export * from './interfaces/csvparser';
diff --git a/ts/interfaces/index.ts b/ts/interfaces/index.ts
index 7f76bbd..e69de29 100644
--- a/ts/interfaces/index.ts
+++ b/ts/interfaces/index.ts
@@ -1 +0,0 @@
-export * from './csvparser';
diff --git a/ts/interfaces/paymentaccount.ts b/ts/interfaces/paymentaccount.ts
new file mode 100644
index 0000000..ab37899
--- /dev/null
+++ b/ts/interfaces/paymentaccount.ts
@@ -0,0 +1,36 @@
+import { IVoucher } from './voucher';
+
+export interface IMonthlyCheckpoint {
+  start: number;
+  end: number;
+  pdfVoucher: IVoucher;
+}
+
+export interface IFinplusPaymentAccount {
+  finplusPaymentAccountId: string;
+  data: {
+    status: 'active' | 'inactive' | 'deleted';
+    connectionData: {
+      bankAdapterType: string;
+      credentials: unknown;
+    };
+    currency: 'EUR' | 'USD';
+    name: string;
+    checkpoints: {
+      [key: string]: {
+        1: IMonthlyCheckpoint;
+        2: IMonthlyCheckpoint;
+        3: IMonthlyCheckpoint;
+        4: IMonthlyCheckpoint;
+        5: IMonthlyCheckpoint;
+        6: IMonthlyCheckpoint;
+        7: IMonthlyCheckpoint;
+        8: IMonthlyCheckpoint;
+        9: IMonthlyCheckpoint;
+        10: IMonthlyCheckpoint;
+        11: IMonthlyCheckpoint;
+        12: IMonthlyCheckpoint;
+      };
+    };
+  };
+}
diff --git a/ts/interfaces/transaction.ts b/ts/interfaces/transaction.ts
new file mode 100644
index 0000000..6865278
--- /dev/null
+++ b/ts/interfaces/transaction.ts
@@ -0,0 +1,21 @@
+import { IVoucher } from "./voucher";
+
+export interface IFinplusTransaction {
+  finplusTransactionId: string;
+  data: {
+    finplusPaymentAccountId: string;
+    originTransactionId: string;
+    originAccountId: string;
+    additionalIds: string[];
+    date: number;
+    amount: number;
+    description: string;
+    name: string;
+    voucherData?: IVoucher;
+    justForLooks?: {
+      paymentAcountName: string;
+      voucherSizeInMB: number;
+      dateIso?: string;
+    };
+  };
+}
\ No newline at end of file
diff --git a/ts/interfaces/voucher.ts b/ts/interfaces/voucher.ts
new file mode 100644
index 0000000..e09af05
--- /dev/null
+++ b/ts/interfaces/voucher.ts
@@ -0,0 +1,5 @@
+export interface IVoucher {
+  voucherDate: Date;
+  voucherId: string;
+  voucherStatus: 'uploaded' | 'transmitted';
+}