---
title: "Month End > Manage Accounting Periods"
canonical: "https://technology.bytangram.com/space/TGKB/259490066/Month%20End%20%3E%20Manage%20Accounting%20Periods"
format: markdown
---
**Accounting periods** are used to control, by month, when certain financial transactions can be made in the system. Different transaction types can be allowed/blocked monthly according to your internal finance processes, for instance, blocking transactions for timesheets and personal expenses once month end has concluded.

Accounting periods can be managed in the **finance & administration** module or the **[settings](https://tangram.atlassian.net/wiki/spaces/TGKB/pages/728104965/Settings+%3E+Managing+Accounting+Periods)**[ module](https://tangram.atlassian.net/wiki/spaces/TGKB/pages/728104965/Settings+%3E+Managing+Accounting+Periods). They are usually managed by designated role(s) or person(s) within each agency or office. 

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- If you have access to multiple companies within your system, ensure you have selected the relevant entity from the dropdown list before making any updates to finance & administration settings
- If you only have access to one company this field will default accordingly

![image](media://dbe89e0f-9380-4747-be57-0ad5ac31430a)


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## SET THE FINANCIAL YEAR

- Go to the **finance & administration **module
- Select** month-end **> **accounting periods**

![image](media://b42b2abf-08a7-4bc7-aa00-da5ef51eeaf4)


- In the top half of the screen you can set/delete your agency’s financial year

![image](media://2614546c-9031-49fe-af2f-54984b035702)


| **ICON** | **FUNCTIONALITY** |
| --- | --- |
| ![image](media://064f8961-1f8a-471a-b5f1-214a4b9162fa) | **Create new** accounting year |
| ![image](media://a7820ae5-20f8-48ca-9906-a779f080f567) | **Delete** accounting year |
| ![image](media://579cdcb4-8e49-4a8a-b655-386c661024a5) | **Move first month** from selected year to previous year |
| ![image](media://383814e9-f695-4ddb-8454-a8bfa5d6acf5) | **Move last month** from selected year to next year |


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## LOCK OR OPEN ACCOUNTING PERIOD

- To fully lock or open a period then click in the **period number** column for the month you wish to open/lock
- Then click **select/deselect entire row** button …or…

![image](media://b11b84d2-87f2-4749-8513-b6b931df595a)


- Alternatively, **select** and **deselect** individual transaction types.

![image](media://5d2eb7db-c497-44f4-9214-9e5d7cb99ec9)


- When a period is **locked**, it means those transaction types <u>cannot</u> be performed in WorkBook
- In the example above, the accounting period for 01/12/21 has been locked for time entry, material entry, sales invoices, subsistence allowance personal expense entries and purchase orders - this means that staff can no longer add time, materials, subsistence or expenses dated in that period or create invoices or purchase orders in that period
- This is so finance can close and reconcile jobs with for that period without rogue entries appearing after the fact

Below is a guide of the transaction types and their functionality.

| **TRANSACTION TYPE** | **FUNCTIONALITY** |
| --- | --- |
| **Finance Posting** | When the box is checked finance postings are allowed during this period |
| **Project Posting** | When the box is checked project postings are allowed during this period |
| **Time Entry** | When the box is checked time entry is allowed during this period |
| **Material Entry** | When the box is checked material entries are allowed during this period |
| **Creditor Invoice Entry** | When the box is checked creditor invoices are allowed during this period |
| **Adjustment** | When the box is checked WIP adjustments allowed during this period |
| **Sales Invoices** | When the box is checked invoice creation is allowed during this period |
| **Subsistence Allowance** | When the box is checked subsistence allowance is allowed during this period |
| **Personal Expense** | When the box is checked personal expense entries are allowed during this period |
| **Purchase Orders** | When the box is checked PO creation is allowed during this period |
| **Mileage** | When the box is checked milage entries are allowed during this period |
| **Edit Checklist** | When the box is checked checklists are allowed to be edited during this period |
| **Finance Posting of Accrual** | When the box is checked, accrual vouchers will be allowed to post financially via the menu Project Posting. |

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