---
title: Bill clients for software you buy centrally
description: Use App on Charge in AppVentory to record software bought centrally for clients, allocate it with a margin, invoice it and track balances.
---
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# Bill clients for software you buy centrally
## App on Charge tracks the software you buy for clients, what you charge for it and what is still owed.
###### 15 minutes to set up · My Practice
#### What you get
The software you resell — Xero subscriptions, Dext, the tools you add to a client's bundle — tracked as spend on your side and revenue on theirs, with the margin and the balance due visible per client.
#### Where it lives
- **App on Charge** in My Practice — the apps you on-charge, total on-charge spend and the clients buying direct that you could move.
- A client's record → **App On Charge** — what that client is on-charged, invoices and balance.
- **Practice Overview** → **Apps on Charge** — **On-Charge Spend**, **On-Charge Apps** and two prompts: clients buying direct what you already on-charge, and the apps your clients use most that you could start on-charging.
- **Clients** — **Unbilled Revenue**, **Total Invoiced**, **Balance Due** and **Payment Status**.
*App on Charge page: each on-charged spend with Billable, Margin, Unallocated and the clients it is allocated to*
#### Steps
1. Go to **App on Charge** and click **Add App On Charge**.
2. Allocate the spend to the clients who use it and set the charge — the list then shows **Spend**, **Billable**, **Margin** and anything still **Unallocated**.
3. Set invoice numbering once under **Settings** → **Invoice Number Setup**.
4. Generate the invoice from the client's **App On Charge** tab when it falls due.
5. Watch **Balance Due** and **Payment Status** on the Clients list.
#### Rules
**Settings** → **App on Charge Rules** lets you set a default margin or treatment so new allocations follow it.
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Next: **Package what you deliver as Services**
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