Moss gives you flexible options for splitting expenses across card payments, supplier invoices, employee reimbursements and purchase requests. This allows you to attribute spend accurately to VAT rates, accounts, cost centres, and more.
You can choose between:
AI-powered Auto-splits — you can split items automatically by:
Manual splits, which give you full control to define splits by any accounting attribute to meet your specific workflow needs.
AI auto-splits
Auto-split by VAT rate
Note: If this is currently not included in your plan, you can trial this feature or speak to your CSM or reach out to customer support at support@getmoss.com.
This option groups all line items that share the same VAT rate into individual accounting entries and matches it with the corresponding VAT rate values.
This is how it works:
Exact VAT rate match → selected
If the OCR-extracted VAT rate exactly matches a single VAT rate in Moss, that rate is automatically selected for the line.
Multiple VAT rate matches → one selected + check tag
When the extracted rate could match more than one VAT value (for example “0% No VAT” and “0% Non-claimable VAT”), Moss will select one of the matching values for the line and add a “Double-check” tag to prompt review.
The Pre-Accounting Agent will break ties in favour of the more probable value.
No matches → default non-claimable 0% applied
If the extracted rate doesn’t match any VAT rate in Moss, the system applies the non-claimable 0% VAT rate by default.
You can set which rate is considered the default non-claimable rate in Accounting Settings.
You can also add a new VAT rate in Moss later if the extracted rate should be represented explicitly.
Amounts & validation
Enter amounts as either gross or net; Moss will calculate the corresponding net/gross/VAT automatically.
Totals are validated against the original transaction amount.
This method is ideal for receipts or invoices with different VAT rates, but where a full line item breakdown is not required.
Auto-split by line item
Note: If this is currently not included in your plan, you can trial this feature or speak to your CSM or reach out to customer support at support@getmoss.com.
This option uses AI to extract individual line items from an invoice or receipt, based on the item descriptions.
Here is how it works:
Moss parses each extracted item in a separate line, with the descriptions added to the corresponding booking texts.
Totals (net, VAT and gross) are calculated per line and validated against the invoice.
You can edit each line — change the VAT rate, update gross/net amounts, or post lines to different expense accounts, cost centres, projects, etc.
This method is useful for multi-line invoices or receipts where individual items such as products, services, or delivery need to be coded differently.
Split an expense manually
Manual splitting is for transactions that need detailed or non-standard accounting lines. Enter split lines directly and specify any field you need: VAT rate, expense account, cost centre, booking text, quantity, and unit price.
When to use manual split
Manual splits are useful when:
Different parts of a transaction must be coded to separate accounts, for example, delivery and product.
Spend must be apportioned across departments, cost centres, or projects.
You want to split a total by percentage.
You need to record quantities and unit prices for accounting accuracy.
How to split a transaction manually
Open a transaction from your Moss dashboard.
You can enter the split flow by:
Clicking the “Split” icon top-right of the VAT table
Clicking “Split” next to the Accounting Attribute you want to split by
Just adding a line via clicking “Add line”.
After the split is initiated, you can add or remove attributes to split via the “Split” icon in the table or the buttons next to the accounting attributes.
When splitting, here are the tools available to you:
Change between “Net”, “Gross” and “%” as input mode. Moss calculates the remaining columns for you.
The percentage mode proportionally allocates the amounts between lines.
Use “Add line” to insert new rows.
Duplicate or delete rows using the row menu.
Apply values across rows using bulk edit.
Use Full Screen Mode to expand the table and reduce scrolling.
For some integrations, like Xero, you can also override the VAT by entering the desired VAT in the corresponding column.
If you would like to split line items quicker, you can also select “+ Add line”, and if you need to add a new column, you can select “split” on the field row that you want to split by. As a final option, you can also use the settings cog in the table to select and unselect columns.
Understanding the totals
Moss calculates net, VAT, and gross totals per line as you enter data.
A summary widget compares the total of all lines to the original transaction amount.
A green check mark confirms when totals are aligned.
Saving your split
Moss saves your progress automatically. You can return later to complete it.
Once validated, the transaction is ready for approval or export.
Using Full-screen mode
If you have many columns and would like an advanced view, select the wide screen view and the table will utilise the width of your screen. You can toggle between both views easily.
The Full-screen button:
The Full-screen view: