What to include on a architecture invoice
Phase-by-phase breakdown
List each phase (SD, DD, CDs, bidding, CA) with its fee, percent complete, previous billings and current amount due.
Project name and number
Reference the project address and your internal job number so payments match the right contract.
Reimbursables and consultants
Separate printing, travel and consultant fees from your design fee, and state any markup the contract allows.
License and firm details
Include the firm name and the registered architect's license number where your state expects it.
Example architecture line items
These sample entries show how to describe architecture work clearly. Rates are illustrative only; use your own pricing.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Schematic design - 100% complete | 1 | $6,000.00 | $6,000.00 |
| Design development - 50% of $9,000 phase fee | 1 | $4,500.00 | $4,500.00 |
| Structural engineer consultant (pass-through) | 1 | $1,800.00 | $1,800.00 |
| Plan printing and permit submission | 1 | $240.00 | $240.00 |
| Subtotal | $12,540.00 | ||
Payment terms for architecture invoices
Our suggestion: Monthly progress billing, Net 30, with a retainer credited on the final invoice.
Sample terms you can paste into the invoice: “Invoices are issued monthly based on percent complete per phase and are due within 30 days. Reimbursable expenses are billed at cost plus 10% as stated in the agreement.”
Not sure what Net 15 or 2/10 Net 30 mean? Payment terms explained.
Architecture invoice FAQ
How do architects bill clients?
Common methods are a percentage of construction cost, a fixed fee split across phases, or hourly rates for smaller jobs. Most firms invoice monthly based on progress within each phase. Your contract should define which method applies.
What does percent complete mean on an architecture invoice?
It shows how far each phase has progressed. If design development is valued at $9,000 and is half done, you bill $4,500 less anything already invoiced for that phase.
Should an architect require a retainer?
Many firms collect an initial retainer before starting schematic design, then credit it against the final invoice. It reduces risk on projects that stall or change hands.