How to Invoice Multiple Jobs on One Account

Consolidate, but keep each job visible

For a client who hands you several jobs in a billing period, one consolidated invoice can be far tidier than a flurry of separate ones. The trap is letting the jobs blur together. The fix is structure: give each job its own labelled group of lines with its own subtotal, then a grand total at the bottom.

Think of it as several mini-invoices stacked on one page. The client can find the job they care about, check its lines, and approve the whole document at once. That balance — consolidated for convenience, itemised for clarity — is what makes a multi-job invoice work.

Reference every job distinctly

Each job in the group needs a clear identifier so it can be matched to the client's own records. Use whatever they use — a site address, a job number, a purchase order, a date.

• Job 1 — site or reference, with its lines and subtotal
• Job 2 — site or reference, with its lines and subtotal
• And so on, then the combined total

A larger client may need to allocate different jobs to different cost centres, so distinct references are not just tidy — they are what lets them process your invoice internally without coming back to you.

One invoice or several? Read the client

Consolidation is not always the right call. Some clients — especially larger organisations — want one invoice per purchase order or per project, because that is how their accounts payable system is set up. Sending them a consolidated invoice can actually slow payment because it does not match a single PO.

So take the lead from the client. A small business owner often prefers one tidy monthly invoice; a corporate may insist on one per PO. When in doubt, ask how they would like to be billed. Matching their internal process is one of the simplest ways to get paid faster.

What to include, and keeping it reconcilable

Your multi-job checklist:

• 'Tax Invoice' (GST if registered) and a single unique number, plus your ABN
• Client name and account reference
• Each job grouped under its own reference with a subtotal
• Any variations within a job on their own lines
• Combined subtotal, GST and total due
• Payment details and a due date

For a busy account, a periodic statement of account ties all the jobs and payments together at a glance. Build the consolidated layout with the free Invoice Generator and reuse it.