Architects, from solo practitioners to small firms, bill clients for design services delivered in phases: programming, schematic design, design development, construction documents, bidding, and construction administration. Invoices usually go to homeowners, developers, contractors, or commercial owners, and tie billing to project phases or hours worked, plus reimbursable expenses like printing, permit fees, and consultant costs.
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Architects price in a few common ways. A percentage of construction cost is traditional, often 8-15% for residential and 5-12% for commercial, with the percentage shifting by project complexity. A fixed fee per phase is common for well-defined scopes, with the total split across phases such as schematic design (15%), design development (20%), construction documents (40%), bidding (5%), and construction administration (20%). Hourly billing is used for small projects, feasibility studies, as-built drawings, and additional services, with different rates for principal, project architect, designer, and drafter. Reimbursable expenses (plots, printing, courier, travel, permit and filing fees) are billed at cost or cost plus a markup of 10-15%. Subconsultants such as structural, MEP, civil, and landscape engineers are usually billed through at cost plus a markup, or contracted directly by the owner. Most architects start with a signed agreement (often an AIA or similar form) and an initial retainer that is credited against the final phase invoice.
| Service | Priced | Typical range |
|---|---|---|
| Principal / licensed architect time | per hour | $150-300 |
| Project architect or designer time | per hour | $100-175 |
| CAD/BIM drafter time | per hour | $60-110 |
| Residential design, full services | % of construction cost | 8-15% |
| Schematic design phase, single-family home | flat fee | $3,000-10,000 |
| Existing conditions survey and as-built drawings | per sq ft | $0.50-2.50 |
| Permit set / construction documents, small addition | flat fee | $4,000-15,000 |
| Construction administration site visit | per visit | $250-600 |
Typical US ranges. Rates vary by region, experience, and job size.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Construction documents phase, kitchen and primary suite addition (60% billed of phase fee $9,000) | 1 flat fee | $5,400.00 | $5,400.00 |
| Principal time: owner meeting and revisions to floor plan (additional service) | 4 hours | $200.00 | $800.00 |
| Structural engineer coordination, subconsultant pass-through (Invoice #2218) plus 10% markup | 1 lump sum | $1,980.00 | $1,980.00 |
| Large-format plots and printing, 6 sets of 24x36 drawings | 6 sets | $38.00 | $228.00 |
| City permit application filing fee (reimbursable at cost) | 1 each | $425.00 | $425.00 |
| Total | $8,833.00 | ||
Notes: Project: Martinez Residence Addition, Contract dated March 4. Phase billing per Section 4 of the agreement. Additional services authorized by email on April 2. Payment due within 30 days of invoice date. Late balances accrue 1.5% per month. Retainer of $2,500 has been applied to the final invoice.
Ties the invoice to the signed agreement so the client or lender can match it to the scope and fee.
Phase billing relies on stated completion, so showing the phase fee, percent billed, and amount billed to date prevents disputes.
Work outside the base agreement is the most common source of fee disagreements, so documenting who approved it protects you.
Permit fees, printing, and courier costs are billed at cost or with a markup, and clients often ask to see the receipts.
Engineers' fees can be large, and showing the pass-through and any markup keeps it transparent.
Many states require licensed firms to show registration details on professional documents; check your state board's rules.
Running totals let owners, lenders, and bookkeepers see where the project stands against the contract fee.
Architects typically collect an initial retainer of 5-15% of the estimated fee or a fixed amount like $2,500-5,000 at signing, which is often credited against the final invoice. After that, invoices go out monthly or at the end of each phase, usually due in 15 to 30 days. Many agreements include a late charge of 1-1.5% per month and the right to pause work if invoices go unpaid. Commercial and institutional clients may require a purchase order number and pay on net 30 to net 60. Payment is commonly accepted by check, ACH, or wire, and by card for smaller amounts, though card fees are sometimes passed along or discouraged for large invoices.
Waiting until a phase ends can leave you carrying weeks of unpaid work. Billing monthly on percent complete keeps cash flow steady, especially during construction documents when most hours are spent.
Changes to scope, extra revisions, and new design directions should get a short written authorization with a fee or hourly cap. Then invoice them as a separate line so the base contract stays clean.
Hold back the last part of a phase fee until the drawing set, permit submission, or sealed documents are delivered. Release stamped documents only when invoices are current, as your agreement allows.
Time records show whether your fee was right and give you a basis for pricing change orders. They also help if a client disputes additional services.
State your markup policy in the agreement, typically 10-15%, and apply it the same way on every invoice. It covers your coordination time and the risk of carrying their costs.
Percentage works when scope is hard to define up front, but it ties your income to the final construction budget, which can shift. A fixed fee per phase gives the client certainty and suits clear scopes. Many architects use a fixed fee based on an estimated percentage, then adjust through written change orders.
Yes. Construction administration is usually its own phase, billed hourly, per visit, or as a fixed monthly amount. Define the number of included visits in the agreement and bill extra visits, RFIs, and submittal reviews as additional services.
Include a clause stating that if a project is paused beyond a set time, such as 60 or 90 days, you may invoice for work completed and may re-price remaining work. Then bill for the percent complete at the time of the pause.
In most states, professional design services are not subject to sales tax, but a few states or localities tax certain services or printed deliverables. Check with your state revenue department or an accountant.
Send a written reminder referencing the agreement's late charge and any clause allowing you to withhold sealed documents. If it continues, consider a demand letter or small claims or civil action. In some states, design professionals may also have lien rights on the property, so check local rules quickly because deadlines are strict.
Send a Architect estimate for approval, then turn it into an invoice when the work is done.
Architect estimate template