Interior design invoice template you can fill in online
Reviewed in November 2026
An interior design invoice bills a home or office fit-out stage by stage. It splits the design fee from the execution work and subtracts the advance already paid. The generator above opens with a 3 BHK project in rupees. Change the lines and download it as PDF or as an image for WhatsApp.
Interior design invoice
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What it includes
- Studio name, address, phone and GSTIN
- Client name and site address
- Project code and stage number
- Invoice number and date
- Lines: description, unit, quantity, rate, amount
- Work billed to date
- Advances received, with dates
- Balance, GST and total due
- Payment instructions
- Stage note and terms
Interior design invoice: full text
INTERIOR DESIGN INVOICE
[Studio Tvasta Interiors]
[Koramangala, Bengaluru] · [+91 97400 81234]
GSTIN: [number]
Invoice no.: [ST-2026-21/02]
Date: [6 November 2026]
Stage: [2 of 3, carcass installed]
Client: [Mr. and Mrs. Rao]
Site: [Flat 702, Prestige Lakeside]
Project: [ST-2026-21]
Description Qty Rate Amount
[Design fee, 3 BHK, per sq ft] [1,450] [120] [1,74,000]
[Modular kitchen, per running ft] [18] [6,500] [1,17,000]
[Wardrobe, laminate, per sq ft] [160] [1,450] [2,32,000]
[False ceiling, gypsum, per sq ft] [900] [110] [99,000]
[Site supervision, per visit] [12] [1,500] [18,000]
[3D renders, per view] [8] [2,000] [16,000]
Work billed to date [6,56,000]
Less advance [date] [−2,40,000]
Balance [4,16,000]
[GST] [amount]
TOTAL DUE [₹ amount]
Payment instructions
A/c [number] · IFSC [code] · UPI [studiotvasta@okicici]
Terms
Stage 2 of 3. Final [20]% falls due on handover.
Extra work is billed only after written approval.
Payment is due within [7] days.Lines an interior designer bills
Interior jobs mix a professional fee with factory work and site work. Each one has its own unit.
| Line | Unit | Qty | Rate (₹) | Amount (₹) |
|---|---|---|---|---|
| Design fee, 3 BHK | sq ft of carpet area | 1,450 | 120 | 1,74,000 |
| Modular kitchen | running ft | 18 | 6,500 | 1,17,000 |
| Wardrobe with laminate finish | sq ft of shutter | 160 | 1,450 | 2,32,000 |
| False ceiling, gypsum | sq ft | 900 | 110 | 99,000 |
| Site supervision | visit | 12 | 1,500 | 18,000 |
| 3D renders | view | 8 | 2,000 | 16,000 |
| Work billed to date | 6,56,000 | |||
| Less 40% advance received | −2,40,000 | |||
| Balance before GST | 4,16,000 |
Write the unit on every line. A client who reads «160 sq ft of shutter» can check it with a tape. A client who reads «Wardrobe 2,32,000» starts a negotiation.
Fields the interior bill format needs
| Field | Why it matters on an interior job |
|---|---|
| Project code | One flat can run three invoices over four months |
| Site address | The flat being done up is often not where the client lives |
| Stage number | Shows stage 2 of 3 so the client knows what is left |
| Carpet area | The design fee is a rate per sq ft of this area |
| Material and finish | Laminate, veneer or acrylic changes the rate |
| Brand of hardware | Hinges and channels decide how long a shutter lasts |
| Advance adjusted | Every advance paid so far, with dates |
| Handover date | The day the final stage falls due |
Add your GSTIN and the client GSTIN for an office project. A home owner usually has no GSTIN and the line stays blank.
Stage billing on a home project
Most studios agree three stages before work starts. The quotation fixes the share of each stage.
| Stage | When it is billed | Typical share |
|---|---|---|
| Booking advance | On signing the quotation | 40% |
| Carcass installed | Kitchen and wardrobe boxes fixed on site | 40% |
| Handover | Shutters, hardware and snag list closed | 20% |
Each stage invoice lists the full work done so far. It then subtracts every payment already received. The client sees one running balance across the whole project.
Getting the stage payment over WhatsApp
Studio Tvasta finishes the carcass for the Rao family flat on a Friday. The designer shares site photos and the stage 2 invoice the same evening.
Hello Mrs. Rao. The kitchen and wardrobe carcass at Flat 702 is installed. Photos are above. Stage 2 invoice ST-2026-21/02 is attached for ₹4,16,000 plus GST. It already deducts your advance of ₹2,40,000. Shutters go into production once this stage is paid. UPI ID studiotvasta@okicici. Thank you.
The photos do the work. A client who sees boxes on the wall pays faster than one who reads a percentage.
Mistakes that slow interior payments
- Billing the full quotation at handover. The client then disputes every line at once.
- Leaving the advance off the stage invoice. The client thinks the bill is double.
- Mixing extra work into the stage total. Bill changes on a separate approved line.
- Writing «as per design». The client needs sizes and finishes on the invoice.
- Waiting for the snag list before billing stage 2. Snags belong to the final stage.
- No photos with the invoice. Proof of the stage shortens the payment by days.
Extra work and change orders
Clients change their minds mid-project. A new loft or a different laminate is extra work.
Write the change on WhatsApp with its price before the carpenter starts. Add it to the next stage invoice as its own line. Quote the date the client approved it.
- Change 1 · Loft above wardrobe · 40 sq ft × ₹1,200 · approved 18 November
- Change 2 · Acrylic shutters instead of laminate · difference ₹38,000 · approved 22 November
Office fit-out billed to a company
An office project follows the same stages with a few extra lines. The client is a company with an accounts team.
- Workstations per seat with the size and the laminate code.
- Glass partitions per sq ft with the glass thickness.
- Electrical and data points per point if your team lays them.
- Night or weekend work charge when the office stays open by day.
Put the client GSTIN and the PO number at the top. Accounts teams return invoices without them.
Let Makatea follow up the stages
Makatea keeps each project with its stages and the amounts already received. It sends a WhatsApp reminder before a stage falls due and again after.
When the client pays, Makatea records the payment and the project balance updates. The first 14 days are free and need no card.
Free on Makatea: proforma invoice template · free invoice generator
Frequently asked questions
How should an interior designer charge the design fee?
Per sq ft of carpet area is the most common way in India. A lump sum per room also works for small jobs.
Can I bill materials and design fee on one invoice?
Yes. Keep the design fee and each work item on separate lines. The client then sees what is service and what is execution.
How do I show the advance on an interior invoice?
Add it as a minus line under the work billed to date. Write the date it was received.
Should the stage invoice include GST?
Yes if you are registered for GST. Use the rate that applies to your service and add it in the tax field.
Can I send the invoice as an image on WhatsApp?
Yes. Download the image from the generator and send it with the site photos. Keep the PDF for email and records.
Is this a GST e-invoice?
No. A GST e-invoice with an IRN is issued in the government portal. This template is a commercial invoice for billing and collections.
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