Everhour tracks billable design work and project billing, while architecture firms keep invoices tied to fees, stages, and expenses.
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Architecture firms use invoices to turn an agreed professional appointment into a payment request the client can review. The invoice should identify the firm, client, project, invoice date, invoice number, payment terms, remittance details, and the work being billed. For a private-sector United States client, no single federal invoice format controls the layout, but the invoice still supports tax records and contract administration.
The practical goal is a clear bill for one project, work stage, month, or approved scope item. A residential feasibility study may use an hourly time charge with a cap. A commercial project may bill a lump sum by milestone. A larger appointment may follow percentage-based fees tied to construction cost. The invoice should make that fee basis visible so the client can connect the charge to the agreement.
Architecture firms commonly bill by percentage of construction cost, lump sum, or time charge. RIBA describes percentage-based architecture fees as a percentage applied to construction costs excluding VAT, usually starting from an initial construction budget. For time-charge work, RIBA describes hourly rates with capped hours, with extra time approved by the client before the cap is exceeded.
Invoice timing often follows a monthly cycle or the end of work stages. RIBA gives one example allocation with 35% of the architect's fee for stages 0-3, covering feasibility studies, concept design, and planning, another 35% for stage 4 technical design, and the remaining 30% for stages 5-6, from construction through handover. Your invoice should label the stage, fee share, and work narrative clearly.
Architecture invoices become harder to review when professional fees, reimbursable expenses, and tax notes sit in one vague line. RIBA identifies statutory application payments, travel, and printing as costs outside the architect's fee. List those items separately from design fees so the client can see the difference between professional services and pass-through costs.
United States invoicing also needs a state and local tax check, not a VAT or GST line by default. The United States does not use a national VAT or GST invoice regime. Sales and use tax depends on state and local rules, nexus, service taxability, and place of sale. California generally taxes retail sales of tangible personal property and only some service or labor charges, while Texas defines 16 broad taxable service categories.
A free invoice tool is enough for a single architecture invoice when the fee is simple, the work narrative is already written, and the firm only needs a clean PDF or email-ready payment request. It also works for a one-off reimbursable expense invoice, as long as the firm keeps the underlying appointment, receipts, and records elsewhere.
A managed workflow becomes necessary when the invoice depends on approved billable time, non-billable tasks, project rates, or stage-by-stage reporting. Everhour supports project billing status, task-level non-billable controls, custom task rates, member-rate exceptions, and admin reports for billable time, non-billable time, billable amount, and cost. That structure keeps design reviews, coordination, and client billing tied to the same project record.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
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Architecture firms commonly use percentage of construction cost, lump sum, or time charge billing. Percentage billing ties the fee to the agreed construction cost basis. Lump sum billing gives the client a fixed professional fee for a defined scope. Time charge billing uses hourly rates, often with a cap for work such as feasibility studies.
A monthly invoice works well for ongoing design, coordination, and advisory work. Stage billing works well when the appointment defines payment around milestones, such as feasibility, concept design, technical design, construction, and handover. The invoice should follow the written appointment, then label the period or stage so the client can match it to the agreed fee schedule.
Statutory application payments, travel, and printing are common examples of costs listed outside the architect's professional fee. The invoice should separate those costs from design services and include enough description for review. Client money held on the client's behalf requires separate handling under RIBA Chartered Practice rules, including a designated interest-bearing client account.
A United States architecture invoice does not use a national VAT or GST invoice regime. State and local sales and use tax rules control whether tax applies, based on nexus, the service or product sold, and the place of sale. A seller that makes taxable sales may need state-level sales-tax registration, such as a seller's permit where required.
A vague line such as "architectural services" slows approval because the client cannot match the charge to the appointment. Use the project name, billing period, stage, fee basis, work narrative, reimbursable expenses, and payment terms. For hourly work, include the approved rate structure and keep time records that support the billed amount.
Everhour lets admins set project billing status, mark specific tasks as non-billable, apply custom task rates, and create member-rate exceptions. Admin reports can show billable time, non-billable time, billable amount, and cost, giving architecture firms a cleaner base for client billing.
Everhour Billing & Invoicing converts uninvoiced billable time and expenses into client invoices. Firms can group line items by project, task, person, date, or other available breakdowns, then export invoices to QuickBooks Online, Xero, or FreshBooks as drafts.
Track approved architecture hours by client, project, and task, then move billable work into invoicing with Everhour's billable and non-billable time controls.
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