Everhour keeps design time tied to rates and projects, while your invoice presents fees, purchases, and terms clearly.
Fill in your details, add line items, hit Print when ready.
| Description | Qty | Rate | Tax | Amount |
|---|
The calculator gives you the number — Everhour takes it from there.
One click and you're timing. Start a timer, add an entry, edit the details. This is exactly how it feels in Everhour.
Set a budget, assign rates, and get alerted before you're over.
Measurement
Track your budget through time or costs
Every report you need — configured your way, always up to date.
Tracked hours flow straight into a polished invoice — no copy-paste, no manual math.
An interior design invoice should give the client enough detail to match the bill to the engagement. Include your business name, client name, invoice date, invoice number, project or room reference, payment terms, and remittance instructions. Add service lines for work such as space planning, material and furniture selection, project documentation, coordination, and project management.
The invoice also needs to reflect the fee model in the agreement. A small residential project may use a flat design fee plus a purchasing commission. A remodel with changing decisions may use hourly billing by designer, assistant, or project manager. A retainer can appear as an upfront payment or a credit against later invoices when the contract says so.
Interior designers commonly bill by flat fee, hourly rate, cost-plus or product markup, or a hybrid structure. Use separate invoice sections when the project combines design labor and purchasing. For example, list concept development as a design fee, show FF&E purchasing as a percentage or markup line, and separate reimbursable shipping, samples, or vendor charges.
Phase billing works well when the project follows discovery, concept development, design development and selections, documentation, coordination, project management, and post-occupancy work. A line such as "Design development and selections, primary bedroom, fixed phase fee, $2,400" tells the client which phase is complete. Hourly change orders should refer to the approved scope change or revision request.
The United States does not use a national VAT or GST invoice regime, and there is no U.S. VAT/GST registration number for invoices. Sales and use tax obligations come from state and local rules, with rates and service taxability depending on the location, nexus, and the type of sale. Interior design services, tangible goods, procurement charges, and delivery can receive different treatment by jurisdiction.
A practical invoice keeps tax lines specific instead of generic. If a seller permit or sales-tax account is required for taxable sales, use the state-level identifier your business uses. Do not add self-employment tax as a client charge. For income reporting, businesses use Form W-9 to provide a Taxpayer Identification Number to payers that must file IRS information returns.
A free template is enough for a single consultation, a small flat-fee room refresh, or a one-time purchase reimbursement. It works when the invoice has a short service list, no team rate differences, and no ongoing need to reconcile billable time against the client budget. The risk increases when procurement, revisions, assistants, and multiple phases share one client account.
A managed workflow matters when tracked time feeds the invoice. Everhour separates cost and billable rates, supports per-person defaults and per-project overrides, preserves dated rate history, and prices billable work by project, member, or task. That structure helps a design studio invoice senior design time, junior support, and project management at the right client-facing rate.
This content is for general information only, may not be fully up to date, and is provided without any warranty or liability.
High Performer
G2
Summer 2026
Best Ease Of Use
Capterra
Summer 2026
Rated in the top time trackers across G2, Capterra, and TrustRadius — with consistent praise for ease of use, integrations, and support.
Use line items that match the agreement and the project phase. Common service lines include space planning, selections, documentation, coordination, and project management. Add separate lines for retainers, flat phase fees, hourly work, purchasing commissions, reimbursable vendor costs, and approved scope-change work so the client can connect each charge to the signed scope.
Yes. Separate design labor from furniture, fixtures, equipment, samples, shipping, and other purchasing activity. A split layout makes the client-facing fee clear and helps your bookkeeper review sales-tax treatment. Some designers charge a purchasing commission or markup, with reported ranges such as 10% to 35% for furniture and home-item purchasing.
A retainer is a common business practice, not a universal legal requirement. Interior designers often collect an upfront amount, sometimes up to 30% of the total fee, when the contract provides for it. The invoice should state whether the retainer is nonrefundable, applied to future invoices, or held against a defined project phase.
Sales tax depends on state and local rules, nexus, the place of sale, and the taxability of the service or product. The United States has no single national sales-tax rate and no national VAT or GST invoice regime. A designer selling taxable goods may need state-level sales-tax registration, such as a seller permit where required.
Mixed charges create delays. Clients dispute invoices when design fees, product costs, markups, retainers, and change orders appear in one vague total. Use distinct line items, attach the project or room reference, and name the approved scope change when billing revisions beyond the original statement of work.
Everhour separates cost and billable rates so a design studio can track internal labor cost while invoicing the client at project, member, or task rates. Per-person defaults, per-project overrides, and dated rate changes keep senior designer, junior designer, and project manager work priced correctly across long projects.
Track approved design hours by project, member, or task, then price them with the right client-facing rate. Everhour keeps billable work connected to invoices and project reporting.
14-day free trial · No credit card · Cancel anytime
