Enter furnishings at your net cost; the markup line is added for you. Hours go in Qty for hourly lines.
The project and pieces shown are a made up sample, so type your own over them. Drafts are kept on this device only, with no upload.
An interior design invoice bills two different things, so it keeps them apart: creative services (consultation, space planning, design fees and hours worked at your rate) and procurement (furniture, fixtures and materials, with the vendor and any designer markup). Around those lines it carries your studio and client details, the project and site address, a sequential invoice number, the date issued and the date payment is due, then the subtotal, discount, sales tax, total, any retainer applied and the balance due, with payment terms underneath.
How the interior design invoice total is calculated
The interior design invoice generator prices furnishings at cost plus your markup, adds fees and hours, takes off any discount, taxes only the lines your state taxes, then credits the retainer.
| What it covers | The math | |
|---|---|---|
| Line amount | One charge: a design fee, billed hours, a furnishing or another cost such as freight | Qty × unit price (hours × hourly rate for time) |
| Procurement markup | Your margin on furniture and materials you buy for the client | Markup % × furnishings at net cost, plus any markup lines you add yourself |
| Subtotal | Everything before discount and tax, also split into fees, furnishings, markup and other | Sum of the lines + markup |
| Discount | A fixed amount off, such as a designer or returning client discount | Spread over every line by size, so each taxable line takes its share |
| Tax | Charged on furnishings and markup, on every line, or on nothing | Tax rate × (taxable lines minus their discount share) |
| Balance due | Amount the client has left to pay | Subtotal, less discount, plus tax, less retainer applied and other payments |
Worked example: procurement phase for a living room and primary bedroom, 20% markup, tax 6% on furnishings and markup
How to use this interior design invoice template
Work through the four tabs in order. The invoice beside them redraws as you type, so you can check each line before you download it.
- Enter your studio details: studio or designer name, address, contact, tax ID, and your seller's permit or resale number if you buy furnishings for clients. Add a logo too; the file stays on your computer.
- Add the client and project: client name, the business for commercial jobs, billing address, project name, rooms covered and the site address when it differs.
- Pick the design phase and dates.
- List design services and fees: a flat design fee, consultations or space planning as Design fee lines, and site visits or vendor coordination as Hours with time in the quantity box.
- Add furnishings with vendor and PO number: enter each piece at your net cost. Set the markup percentage once and the generator adds the procurement markup line for you, so the client sees cost and margin apart.
- Set tax, discount, retainer and terms.
- Download the PDF: press Download PDF and save it. Only the invoice prints, sized to a single page.
What to include in an interior design invoice
A design invoice mixes creative work with physical goods, so each needs its own lines and enough detail for the client to trace every charge.
| Part | What goes on it |
|---|---|
| Studio details | Studio or designer name, address, phone or email, tax ID, seller's permit number, and a license or registration number where your state issues one. |
| Client details | Client name, the company on commercial work, billing address and contact. |
| Invoice details | A sequential invoice number, issue date and due date. |
| Project reference | Project name, rooms or areas, site address, design phase, start date, expected completion and the client's PO number when they issue one. |
| Design services | Consultations, space planning, design packages, project management and staging, with hours and rate for time billed by the hour. |
| Furnishings and materials | Furniture, lighting, rugs, fabric, paint, flooring and fixtures, each with a description (size, color, product number), quantity, price, vendor and your PO number. |
| Markup | Your procurement markup on goods, shown as its own line or stated in the terms. |
| Trades and other costs | Carpenters, painters, electricians or installers billed through your studio, plus freight and delivery. |
| Totals | Subtotal, discount, sales tax, total, retainer applied and balance due. |
| Payment terms | Due date, accepted payment methods, milestone schedule and any late fee you charge. |
| Notes | Lead times, return and cancellation terms for custom orders, warranties and a closing thank you line. |
Why are invoices important for interior design contractors?
One project can run months and involve a dozen vendors. The invoice is what ties the money to the work and the purchases.
- Clear for the clientDesign time, furnishings and trades on separate lines show exactly what each payment covers.
- Steadier cash flowBilling at each milestone, with a due date and clear terms, keeps money coming in while orders are still arriving.
- A record for disputesItem descriptions, vendors and PO numbers back up what was agreed and bought if a piece arrives damaged or a client questions a charge.
- Bookkeeping and taxSupplier costs, markup and client payments line up with your books, and tax shown on its own line makes returns simpler.
- Fewer mistakesA template catches what is easy to miss on multi part billing, like freight or a second site visit, and the totals work themselves out.
- Branded and quickSame layout on every project, in a few minutes.
How do interior designers bill clients?
Most studios use one of a few fee structures, or mix them. Many interior designers charge roughly $100 to $500 an hour, often closer to $100 to $200 in many markets.
| Method | How it works | How it looks on the invoice |
|---|---|---|
| Flat fee | One set price for the whole project or a defined scope. | A Design fee line per phase or one line for the package. |
| Hourly | Time billed at your rate, common for consultations, smaller jobs and ongoing support. | Hours lines with time in Qty and your rate as the unit price. |
| Cost plus markup | Furnishings and materials billed at your cost with an added markup. | Furnishings at net cost and a procurement markup line, or prices shown after markup. |
| Percentage of project | A fee set as a share of the total project budget, often around 10% to 30% depending on service level and complexity. | A Design fee line naming the percentage and the budget it applies to. |
| Retainer | A set fee for ongoing access to your services, or an advance held against the project. | Credited under Retainer applied, or billed on a recurring invoice. |
Do interior designers charge sales tax on furniture and design fees?
Furnishings you sell are usually taxed. Design fees depend on the state and on how you bill them, which is why fees and goods sit on separate lines.
| State | How interior design charges are taxed |
|---|---|
| California | Charges for professional services not directly related to the sale of merchandise are not taxed. Fees directly related to acquiring and providing furnishings you sell are taxed, and those charges should be listed separately on the invoice. |
| New York | Interior decorating and design services are taxable at the full state and local rate, except that they are exempt from New York City's local sales tax. Work that becomes a capital improvement to real property is not taxable. |
| Washington | Furnishings, fixtures or artwork bought in your own name and resold to a client are retail sales, even when sold at cost or reimbursed. When design fees and goods are billed separately, the design fee is reported apart from the retail sale. |
When you resell furnishings, a valid resale certificate lets you buy them without paying tax to the vendor; your permit number is never for clients to use themselves. Confirm your own state's rules, then match the tax setting and rate in the generator.
When should interior designers send invoices?
Small consultations can be billed on completion. Longer projects are usually invoiced several times, at each phase or after major purchases, with the retainer credited along the way.
| Stage | What is usually billed |
|---|---|
| Contract signed | Retainer or deposit, taken before design work starts and credited on later invoices. |
| Concept | Concept development and mood boards. |
| Design development | Floor plans, selections and drawings, by flat fee or hours. |
| Procurement | Furnishings and materials as orders are placed, with vendor, PO number and markup on each order. |
| Installation and styling | Install days, trades billed through the studio, freight and final styling. |
| Final invoice | Whatever remains, closing the project. |
Write the payment terms on every invoice, for example net 30 for payment due 30 days after the invoice date, along with how the client can pay and any installment schedule.
Interior design quote vs invoice vs receipt
Each one belongs to a different point in the project, from the first proposal to the last payment.
| Document | Timing | Purpose |
|---|---|---|
| Quote or pro forma invoice | Before work begins | Sets out projected design hours, materials and furniture costs for the client to approve. |
| Invoice | After a phase, a purchase or the project | Bills the services and goods actually provided, with a due date. |
| Recurring invoice | On a set schedule | Bills an ongoing retainer for corporate clients or long residential projects. |
| Credit invoice | When something changes | Records a discount, refund or adjustment to billed services. |
| Receipt | After payment | Confirms the client has paid. |
Industry specific tips for interior design invoicing
Design work is part creative, part purchasing. These habits keep both sides of the bill easy to follow.
- Separate services from productsPut consultations, design fees and hours in one group and purchased items in another, so the client can see each total and taxable goods stay apart.
- Bill by phaseConcept, sourcing and installation each get an invoice on bigger projects.
- State your markupSay plainly whether furniture and materials carry a markup. A visible markup line answers the question before the client asks it.
- Add sourcing notesVendor names, lead times and warranties on the invoice save a round of emails.
- Describe each piece fullySize, color, finish and product number make returns and reorders simple, and match the invoice to the vendor's paperwork.
- Name the file wellDate issued, invoice number, then client name.
Running a design studio? The next project starts with a call you have to catch.
New clients tend to ring while you are measuring a room, walking a showroom or overseeing an install, and a voicemail rarely turns into a booked consultation. ServiceAgent answers those calls at any hour, asks about the rooms and the timeline, and books the first meeting into your calendar, so more enquiries become projects worth invoicing.
Book a free demoFrequently asked questions
Quick answers on billing design work, furnishings and this generator.
Book a free demoWhat should an interior design invoice include?
Studio and client details, a sequential invoice number, the dates it was issued and is due, the project reference and rooms, design services with hours and rates, furnishings with vendor and price, any trades billed through you, then subtotal, discount, tax, total, retainer applied and payment terms.
When should interior designers send invoices?
At the end of each project phase, after major furniture or material orders, and at completion. Quick consultations can be billed as soon as they are done.
What's the difference between an interior design quote and an invoice?
A quote sets out the expected cost before work begins so the client can approve it. An invoice is the bill for the services and purchases actually delivered.
How is an interior design invoice different from a receipt?
An invoice asks the client to pay. A receipt confirms the payment has arrived.
How do I format an interior design invoice correctly?
Logo and studio details with the invoice number at the top, client and project below, then services and furnishings as separate groups. Totals go bottom right with the balance due standing out, and terms and notes sit underneath. The generator above follows that layout.
Should I use an interior design invoice template or generator?
A blank template suits occasional billing by hand. A generator does the markup and tax math for you, keeps every invoice consistent and produces the PDF straight away, which matters on projects with dozens of items.
How does an interior design invoice generator work?
You enter studio, client and project details, add fees, hours and furnishings as lines, set the markup, tax, discount and retainer, and the interior design invoice generator works out every total and the balance due. Then you download a PDF.
How long does it take to create an interior design invoice with a generator?
A few minutes for most invoices. Your studio details are remembered on this browser, which means the next one only needs the client, project and new lines.
Should my markup on furniture show on the invoice?
Either works, as long as the client knows. You can list each piece at the price after markup, or show furnishings at cost with a separate markup line, which is what the generator does when you set a markup percentage.
How do I show a retainer on an interior design invoice?
Bill the retainer on its own invoice when the contract is signed. On later invoices, enter the amount being credited under Retainer applied and it comes off the total before the balance due.
Do interior designers charge sales tax on design fees?
It depends on the state. California and Washington treat a separately billed design fee differently from the furnishings you sell, while New York taxes interior design services outside New York City's local tax. Furnishings you resell are generally taxed, so keep fees and goods on separate lines.
Does this generator store or upload my invoice?
The draft lives in this browser, ready when you return. Nothing is uploaded, and your logo stays on your device. Reset clears everything.
Leads growth and product marketing for ServiceAgent at SaaS Labs, where he has worked in product marketing since 2020. Writes ServiceAgent's coverage of AI call answering, CRM and home services operations.
Published by ServiceAgent, the AI front office for home service teams. This template is a general billing tool, not tax or legal advice. Sales tax on design fees and furnishings varies by state and by how the work is billed, so check with your state tax agency or a bookkeeper before relying on it.