Invoice Splitter

Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

How to use this tool

1. Enter the invoice subtotal, tax percentage, and any flat discount that should be applied before splitting.
2. Add allocations as one line per group, such as `Design:40`, `Engineering:35`, and `Operations:25`.
3. Click "Split Invoice" and review the gross total, percent total, and allocation table.
4. Save the allocation percentages with the invoice record so the split can be audited later.

Formula or method

• Tax is added to the subtotal before the discount is subtracted.
• Allocation amounts are normalized by the total entered percentage, so groups still split the gross total if percentages do not add to exactly 100.

Worked example

Splitting a vendor invoice across three teams

• Subtotal: $1,000
• Tax: 19%
• Discount: $0
• Allocations: Product Team:50, Sales Team:30, Operations:20

Result: The splitter calculates gross total, then allocates 50%, 30%, and 20% of that total to the three teams.

Attach the allocation output to the invoice approval so finance can see both the split method and the calculated amounts.

How to interpret the result

Invoice splits are only as trustworthy as the allocation rule behind them.

• Percent total shows whether entered shares match the intended allocation basis.
• Normalized percentages can be useful for rough splits, but exact reimbursement rules may require percentages that total 100.
• Tax, discounts, and currency treatment should match the accounting policy used for the invoice.

Common mistakes

• Entering allocation percentages that do not reflect the agreed cost-sharing rule.
• Applying discounts after splitting when the agreement requires discount before splitting, or vice versa.
• Mixing reimbursable and non-reimbursable charges in the same subtotal.
• Sharing the calculated result without the source invoice and allocation assumptions.

FAQ

Explore more versions

Tailored guides for specific audiences, regions, and scenarios.