If you frequently enter transactions that need to be split across multiple departments or dimensions, Allocation accounts in Business Central can significantly reduce manual work. Allocation accounts automate the distribution of expenses based on predefined percentages or variable allocation drivers, helping ensure transactions are posted accurately and consistently.

In this Fast Class, we’ll explore both fixed allocation and variable allocation accounts and review when each option makes the most sense.

Fixed allocation accounts

Fixed allocation accounts are ideal when allocation percentages remain relatively stable over time. For example, utility expenses may be allocated to departments based on the square footage each department occupies within a building.

To create a fixed allocation account:

1. Open Allocation Accounts in Business Central.
2. Create a new allocation account.
3. Enter a name and account number.
4. Select Fixed as the allocation type.
5. Choose either:
   Split Quantity
   Split Amount

The Split Quantity option displays allocation percentages along with calculated amounts, making it easier to review how values are distributed.

After creating the allocation account, define the dimensions and percentages for each allocation line. For example:

• IT Department: Percentage based on assigned square footage
• Operations Department: Percentage based on assigned square footage

When entering a transaction such as a Purchase Invoice:

• Select Allocation Account as the account type.
• Choose the allocation account you created.
• Enter the transaction amount.

When you preview or post the transaction, Business Central automatically distributes the expense according to the predefined percentages and dimension assignments.

Variable allocation accounts

Variable allocation accounts are designed for allocations that change over time. Unlike fixed allocations, variable allocations rely on statistical accounts to determine how transactions are distributed.

When configuring a variable allocation account:

1. Create a new allocation account.
2. Select Variable as the allocation type.
3. Choose Split Quantity or Split Amount.
4. Configure dimensions.
5. Select a statistical account that will drive the allocation.

An important option available with variable allocations is Inherit from Parent.

When enabled, Business Central automatically applies the allocation dimensions to the resulting entries based on the G/L account selected on the transaction. This allows users to enter transactions as usual while still benefiting from automated allocation.

Using statistical accounts

Statistical accounts store operational metrics that may influence allocations but should not appear as traditional financial balances. Examples include:

• Square footage
• Employee counts
• Production units
• Other operational drivers

For a utility allocation, square footage may be used to determine the distribution percentages. For more dynamic allocations, organizations might use employee counts. As staffing levels change, the statistical account balances can be updated via journal entries, thereby automatically affecting future allocation calculations.

This provides greater flexibility than fixed percentages when allocation drivers change frequently.

Balance at Date option

Variable allocation accounts include a Balance at Date setting. This option is recommended because it allows allocations to reflect statistical account balances as of a specific transaction date. This can be especially helpful when:

• Entering backdated invoices
• Processing late vendor invoices
• Recording historical transactions

Rather than updating current statistical account balances, Business Central can use balances that were valid during the selected historical period.

Filters and allocation accuracy

Variable allocations also support balance filters. While filters may seem unnecessary when only one dimension is being used, adding a filter can help Business Central validate the setup and reduce posting notifications or warnings. Even with a single dimension, applying the corresponding filter can help make posting smoother.

Using variable allocations in transactions

Unlike fixed allocations, variable allocations are typically used alongside a standard G/L account. When entering a transaction:

1. Select the appropriate G/L account.
2. Choose the Variable Allocation Account.
3. Enter the transaction amount.
4. Preview or post the transaction.

Business Central will calculate the allocations using the selected Statistical Account and distribute the expense to the appropriate dimensions.

Recurring transactions

Allocation accounts are not limited to one-time entries. They can also be used within recurring transactions, allowing organizations to automate frequently occurring expenses. Benefits include:

• Reduced data entry
• Consistent allocation methodology
• Automatic percentage calculations
• Improved accuracy across recurring expenses

Users simply update the transaction amount while Business Central handles the allocation process automatically.

Key takeaways

Allocation accounts help streamline financial processes by automatically distributing transactions across dimensions and departments. Fixed allocation accounts are best when percentages remain stable, while variable allocation accounts provide flexibility through statistical accounts that can change over time. By implementing allocation accounts, organizations can:

• Improve transaction accuracy
• Reduce manual entry
• Maintain consistent allocation methods
• Simplify recurring accounting processes
• Ensure expenses are assigned to the correct departments and dimensions

Whether using fixed percentages or dynamic allocation drivers, allocation accounts provide a powerful way to automate and standardize expense allocation in Business Central.