Architecture invoices bill by project phase against the fee structure in the owner-architect agreement: percentage of construction cost (typically 8–15% residential, 5–10% commercial) allocated across phases — schematic design ~15%, design development ~20%, construction documents ~40%, bidding ~5%, construction administration ~20% — or fixed fees per phase, with hourly rates ($100–$250) for additional services. Invoices show percent complete per phase, previously billed amounts, reimbursable expenses at cost or cost-plus, and consultant pass-throughs where the architect carries engineering.
Architecture Invoice Template
Reviewed by the Agiled editorial teamUpdated June 2026
Architects bill against a fee agreement, not a timesheet — and the invoice's job is to map cleanly onto that agreement. Whether the fee is a percentage of construction cost or fixed per phase, every invoice answers the same questions: which phase, what percent complete, what's been billed before, and what's additional service versus basic. Add reimbursables and consultant pass-throughs, and the invoice becomes the running ledger of the whole engagement. This template carries that structure without AIA billing software. Download it in PDF, Word, Excel, Google Docs, or Google Sheets, or generate a pre-filled version below.
Part of our free invoice template library — 80+ industry-specific templates in PDF, Word, Excel, Google Docs, and Google Sheets.
Your Company Name
123 Business St, City, State 12345
billing@yourcompany.com
INVOICE
INV-0001
Bill to
Client Company
Due
Net 30
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Schematic design phase (15% of fee) | 1 | $4,500.00 | $4,500.00 |
| Design development drawings | 1 | $6,000.00 | $6,000.00 |
| Site visit and observation report | 2 | $350.00 | $700.00 |
Download this invoice template
Pick a style, choose a format, and download — generated locally in your browser.
Style
Format
Fixed layout for sending and printing
Word
Editable in Word or Google Docs
Excel
Live formulas for recurring invoices
Or create and send invoices online
Create online- Fee basis
- 8 – 15% of construction (residential)
- Phase split
- SD 15% · DD 20% · CD 40% · CA 20%
- Hourly (additional services)
- $100 – $250
- Billing cycle
- Monthly, by phase percent complete
What to include on a architecture invoice
Phase lines with percent complete
"Construction documents — 60% complete — fee $24,000 — previously billed $9,600 — due $4,800." The phase ledger is the spine of an architecture invoice.
Fee basis restated
"Fee: 10% of estimated construction cost ($480,000) = $48,000" or the fixed per-phase schedule. When the construction estimate moves, the restated basis is what makes fee adjustments explainable.
Additional services, separately and by authorization
"Additional service — third bid-set revision per owner request 5/2 — 6.5 hrs @ $165." Scope creep in architecture is real and continuous; the AS line with its authorization is how it gets paid instead of absorbed.
Reimbursable expenses at the agreed multiple
Printing, travel, permit fees, renderings — at cost or cost-times-1.1 per the agreement, receipts available. Listed in their own section, never mixed into fees.
Consultant pass-throughs
Structural, MEP, civil carried under your agreement bill as labeled pass-through lines with the consultant's invoice referenced — at cost or with the agreed markup.
Project and agreement references
Project name, agreement date, invoice number in a project sequence, and billing period — architecture invoices get audited at closeout; the metadata makes yours reconcile.
Retainer applied, if one was taken
Initial retainers commonly apply against the final invoice(s) — show the credit explicitly when it lands.
Typical architecture fee structures (U.S., 2026)
| Structure | Typical range | Notes |
|---|---|---|
| Residential (custom) — % of construction | 8 – 15% | Full services |
| Commercial — % of construction | 5 – 10% | Scale-dependent |
| Schematic design | ~15% of fee | |
| Design development | ~20% of fee | |
| Construction documents | ~40% of fee | |
| Bidding / negotiation | ~5% of fee | |
| Construction administration | ~20% of fee | |
| Hourly — principal / project architect | $150 – $250 / $100 – $180 | Additional services |
Phase allocations follow common AIA-style splits but vary by agreement. Renovation work and small projects often price higher percentages or fixed fees per phase.
How architecture billing actually works
Monthly progress billing through the phases
The standard rhythm bills monthly: each invoice shows every active phase's fee, percent complete this period, prior billings, and the amount due — the same four-column math construction uses, applied to design. Percent complete should track deliverables (DD set issued, CD 90% review) rather than feelings; the phase milestones in the agreement are the objective anchors that make an owner approve without negotiation.
Additional services: where firms leak fee
The third revision cycle, the redesign after the budget changed, the extra renderings for the planning board — all additional services under most agreements, all routinely absorbed by firms that don't paper them. The discipline: flag it in writing when requested ('this falls outside basic services — estimated 8 hours at $165'), get the authorization, and bill it as its own AS line referencing that approval. Owners respect the line when it's drawn early and consistently.
Construction administration and the long tail
CA bills its phase allocation across the construction duration — monthly against percent of construction time elapsed or percent complete. Site visits beyond the agreement's count, extended construction schedules, and contractor-caused rework reviews are classic CA additional services. The final invoice reconciles the full fee against the final construction cost where the agreement adjusts for it, applies any retainer, and closes the reimbursable ledger.
Invoicing mistakes that cost architecture professionals money
Billing hours against a fee agreement
Sending timesheet invoices when the agreement says percent-of-fee confuses the owner and undercuts the fee logic. Bill the structure you signed; keep hours internal for phase-profitability tracking.
Absorbing additional services
Unpapered extra revisions are the profession's quietest margin leak. Flag, authorize, then perform — the AS conversation is easier before the work than after.
Mixing reimbursables into fees
Printing and travel buried in a phase line make both numbers wrong. Separate section, agreed multiple, receipts available.
Ignoring the construction-cost basis
When fees key to construction cost and the budget moves 30%, an invoice that never restates the basis sets up a closeout dispute. Restate the current basis on every invoice.
Vague percent-complete claims
'CD — 75%' with no deliverable anchor invites the owner to counter with their own number. Tie percentages to issued milestones the agreement names.
How to use this template
- 01
Download the template in your preferred format, or generate a pre-filled version with the download studio above.
- 02
Add your firm details, license number, and the project/agreement references.
- 03
Restate the fee basis, then bill each phase by percent complete with prior billings credited.
- 04
Add additional services as authorized, labeled lines at hourly rates.
- 05
List reimbursables in their own section at the agreed multiple, with consultant pass-throughs referenced.
- 06
Bill monthly on Net 30; reconcile the fee basis and apply any retainer on the final invoice.
Skip this template if…
- Interior designers — furnishings procurement and markup billing fits the interior design template.
- Drafting services billing hourly without design liability — a simple hourly professional-services invoice is sufficient.
FAQs
How do architects bill their fees?
Against the owner-architect agreement: typically a percentage of construction cost (8–15% residential, 5–10% commercial) or fixed fees, allocated across phases — roughly 15% schematic design, 20% design development, 40% construction documents, 5% bidding, 20% construction administration — and invoiced monthly by percent complete per phase. Additional services bill hourly at $100–$250.
What does an architecture invoice include?
Phase lines with fee, percent complete, previously billed, and amount due; the fee basis restated; additional services with their authorizations; reimbursable expenses at the agreed multiple; consultant pass-throughs where applicable; and project/agreement references. It's a running ledger of the engagement, not a timesheet.
What counts as an additional service?
Work beyond the agreement's basic services: extra revision cycles, redesign after owner-driven budget or program changes, additional renderings or board presentations, site visits beyond the contracted count, and extended construction administration. Flag it in writing when requested, get authorization, and bill it as its own hourly line.
How are reimbursable expenses billed?
At cost or a small multiple (commonly 1.1×) per the agreement — printing, travel, permit and agency fees, renderings, models — in their own invoice section with receipts available. Consultant fees the architect carries pass through similarly, referencing the consultant's invoice.
What happens to the fee when construction costs change?
Percentage-based agreements typically adjust the fee with the construction cost basis — which is why each invoice should restate the current basis. Significant scope reductions or increases get reconciled at defined points (end of CD, final construction cost), per the agreement's adjustment language.
What payment terms do architecture firms use?
Monthly invoicing on Net 30, often with an initial retainer applied against final invoices, and interest on late payment per the agreement. Firms commonly pause services on accounts 60+ days past due — a right most owner-architect agreements state explicitly.
Need sending, reminders, and payments too?
Turn this template into a full invoicing workflow with Agiled.