Payment Schedule for Interior Projects

Most arguments in interior projects are, at heart, arguments about money and timing. The client feels the firm asked for too much too early; the firm feels the client is holding back money for work that is already done. Both are often right, because the payment schedule was never designed — it was copied from the last project or agreed in a hurry at the booking meeting. A schedule that asks for half the money before anything reaches site puts all the risk on the family. A schedule that pays only at the end forces the contractor to finance the project, which pushes them towards cheaper material and slower work.

A good payment schedule is not a negotiating trick for either side. It is a simple control system: money moves in step with work that can be seen, measured and checked, so that at no point is either party badly exposed. This site's guides on reading a quotation and on interior design contracts give the outline — a modest booking advance, payments linked to visible progress, and a retention until snags are closed. This article goes further. It explains why each stage exists, works the numbers in rupees for a typical project, sets out the design-fee schedule separately, shows how the schedule changes for modular orders, labour-only contracts and commercial fit-outs, and lists exactly what to check before releasing each payment.

Why interior projects are paid in stages

An interior project has an awkward cash shape. Long before anything is visible, the contractor has to buy plywood, laminates, veneers, hardware, wiring and lights, place orders with factories and glass suppliers, and pay a carpentry team every week. Much of that material is cut to size for one particular home and cannot be returned. On the other side, the client is paying for work they cannot yet see, often from savings or a loan, and has no easy remedy if the firm stops work or disappears. Staged payments exist to balance those two risks.

The most useful idea for thinking about this is exposure: the difference, at any moment, between what has been paid and the value of work and material actually delivered. If a client has paid 45 per cent of the contract and the work on site is worth 35 per cent, the client's exposure is 10 per cent. If the work is worth 50 per cent and the client has paid 45, the contractor is exposed by 5 per cent. A fair schedule keeps exposure small for both sides throughout — typically within about 5–10 per cent of the contract value — rather than letting it swing wildly. Fig. 1 shows what that looks like.

Where staged payment comes from

Staged payment is not an invention of the interior trade. Indian public works contracts, such as those under the CPWD's general conditions, have long used running account bills — interim payments against measured work — together with secured advances against materials brought to site, retention money held back from each bill, and a defect liability period after completion. Large commercial fit-outs still work this way. Residential interiors use a simplified version of the same logic: fewer, larger stages tied to visible milestones instead of fortnightly measurement, but the same principles of paying for what is delivered and keeping something back until defects are fixed.

A standard six-stage execution schedule

For a typical turnkey home interior — a mix of site-made carpentry and some factory-made modular items, with civil, electrical, false ceiling, painting and furniture in one contract — the following schedule is balanced and widely used. The percentages are those used across this site's contract and quotation guides; the exact figures are always agreed per project and written into the contract.

Each stage has a reason. The booking advance commits both sides and lets the firm mobilise and order long-lead items; it should be modest because nothing is yet on site. The materials stage is the largest single payment because this is when the contractor's own cash goes out — boards, laminates, hardware, wiring, lights and factory orders. The carcass stage pays for the bulk of carpentry labour and is easy to verify because the boxes are standing. The finishes stage covers shutters, laminates or polish, the false ceiling, painting and electrical fittings. The handover payment is small because snags remain, and the retention ensures that the last 5 per cent of the work — the misaligned shutter, the missing handle, the paint touch-up — actually gets done.

Worked example: a ₹19 lakh mid-range 3BHK

This site's quotation guide uses a mid-range 3BHK of about 1,250 sq ft carpet area with a contract value around ₹15.5–22.5 lakh before GST, and an illustrative midpoint of ₹19 lakh. The table below applies the standard schedule to that midpoint, using 15 per cent for booking, 30 for materials, 25 for carcasses, 20 for finishes, 5 at handover and 5 retention. GST is shown at 18 per cent, the rate commonly charged on interior works contracts; the firm's invoices must show it separately with its GSTIN.

Two things follow from the numbers. First, the family needs roughly ₹10 lakh available within the first month of site work, because the booking and materials stages fall close together; planning the cash, or a loan disbursement, around that is part of the budget. Second, the retention is worth about ₹1.1 lakh including GST on this project — enough to matter to the contractor and small enough not to strain their cash flow. A 10 per cent retention doubles that and is common on larger projects.

The design fee schedule

Where the design fee is charged separately from execution, it should have its own schedule, tied to design deliverables rather than site progress. Fees may be per square foot, a lump sum, or a percentage of project cost; this site's fee guide uses ₹250 per sq ft as an illustrative design-plus-supervision rate and about 8–12 per cent of project cost as the commonly cited percentage band. On a 1,250 sq ft home at ₹250 per sq ft, the fee is ₹3,12,500 before GST. A balanced staging is shown below and in Fig. 2.

The design schedule protects both sides in the same way as the execution schedule. The designer is paid as each body of work is delivered and approved, so they are not working months ahead of payment; the client never pays for drawings they have not received. The number of revision rounds included at each stage should be written into the agreement — commonly two or three on layouts and 3D views — so that a stage cannot stall indefinitely, and additional rounds are charged at an agreed rate.

How the schedule changes with the type of contract

The six-stage schedule fits a turnkey home interior. Other arrangements need a different shape, because the risk sits in different places. The principle — keep exposure small and tie money to verifiable delivery — stays the same.

Factory-made modular items

Modular kitchens and wardrobes made in a factory have a specific cash point: the factory will not start cutting until it has an order and, usually, a payment. It is common for that package to need a larger payment when the factory order is placed — often in the region of 40–50 per cent of the package's value — against a written order confirmation with final drawings, sizes, shutter finish, hardware brand and delivery date. The balance follows delivery to site and installation. The client should insist that drawings are frozen before this payment, because changes after cutting are expensive.

Design-only engagements

When the client appoints a designer for drawings and supervision and hires carpenters, electricians and painters separately, the design schedule above applies to the designer, and each contractor needs its own schedule. Small trades are typically paid a modest advance, interim payments against measured work, and a final payment after inspection. The designer's role in certifying each stage before the client pays is one of the most valuable parts of a supervision fee.

Labour-only and item-rate contracts

Where the client supplies material and a carpentry team works on labour rates, payments are usually weekly or fortnightly against measured work — running feet of wardrobe, square feet of panelling, numbers of doors — with a small amount held until the end. The measurement sheet is the contract here: agree the units and rates in writing before work begins, and measure jointly.

Office and commercial fit-outs

Commercial fit-outs follow the public-works pattern more closely: a mobilisation advance (often around 10 per cent, sometimes against a bank guarantee), running account bills against measured work certified by the client's project manager, retention of around 5 per cent of each bill, and a defect liability period — commonly 12 months — after which the retention is released, or released earlier against a bank guarantee. Commercial clients deduct TDS on contract payments at the rates in force, and the firm reconciles it against its tax credits.

What to check before releasing each payment

A milestone is only useful if it can be verified. 'Work 50 per cent complete' cannot be checked by a family; 'all wardrobe carcasses fixed, plumb and level' can. Before each payment, a short joint inspection with the designer or site supervisor, with photographs and a signed note, takes an hour and prevents most disputes. The table lists what to look for; Fig. 3 shows the carcass-stage checks on a typical wardrobe.

Invoices, GST, TDS and how to pay

Every payment should be matched to a document. For an advance, the firm issues a receipt; as work is billed, it issues tax invoices showing the stage, the amount, GST separately with its GSTIN, and the running total paid. The client should keep a simple ledger — contract value, approved variations, each invoice, each payment and the balance — and share it with the firm at each stage. Most disagreements at the end of a project are about whose numbers are right, and a shared ledger removes them.

Payments should be made by bank transfer, UPI or cheque, never in cash; income-tax law restricts large cash transactions, and bank records are the best evidence if a dispute arises. Business clients and some high-value individual payments attract TDS obligations; the rules and thresholds change from time to time, so a chartered accountant should confirm what applies before the first payment. Where a home loan or top-up loan funds the work, banks often disburse against invoices or a contractor's estimate in stages, and the bank's disbursement timing should be matched to the payment schedule before the contract is signed.

Variations, delays and disputes

Payment schedules break down most often over variations — work added, removed or changed after signing. The fix is a written variation process: every change is priced and approved in writing before it is done, and approved variations are added to the next milestone payment, not paid in cash on the spot or argued about at handover. Removed items are credited the same way. A short variation register, numbered and signed, keeps the contract value honest.

Delays need the same discipline in both directions. A firm should not ask for a stage payment when the stage has not been reached; equally, a client who delays approvals, material selections or site access cannot hold the firm to the original dates or withhold a payment for a stage that is complete. Where a payment is genuinely disputed, the fair approach is to pay the undisputed part on time and list the disputed items in writing for resolution — not to stop all payments, which usually stops the site. Fig. 4 shows why front-loaded schedules cause so many disputes: they leave the client heavily exposed early, and leave the contractor with little reason to finish the last items.

Where payment practice is heading

Payment practice in Indian interiors is slowly becoming more transparent. Project apps and shared drives now let firms post dated photographs, delivery challans and inspection notes against each milestone, so the client can verify a stage from another city before paying. UPI and instant bank transfers make small, frequent payments easy, which suits labour contracts and variations. Some interior platforms already offer escrow-style arrangements in which the client's money is held and released to the contractor as stages are approved, and as such arrangements become more familiar, the large booking advance is likely to become harder to justify.

At Aaditya Interior, the schedule is discussed line by line at the quotation stage, alongside the drawing list, so that every payment is linked to something the family will be able to see on site. Whatever firm a family chooses, the test is the same: at any point in the project, can both sides say what has been paid, what has been delivered, and how far apart those two numbers are?

Rules for a fair payment schedule

• Keep the booking advance to about 10–20 per cent, paid only against a signed contract with the drawing list and specification attached.
• Tie every later payment to a stage that can be seen and checked on site, not to a date or a vague percentage of completion.
• Keep client exposure — paid minus delivered — within about 5–10 per cent of the contract value at every stage.
• Hold a 5–10 per cent retention until every snag is closed and warranties and manuals are handed over.
• Freeze drawings and specifications before paying for factory-made modular orders.
• Stage the design fee separately against approved deliverables, with revision rounds written into the agreement.
• Price every variation in writing and add it to the next milestone, never in cash on the spot.
• Pay by bank transfer or UPI against an invoice showing GST and GSTIN, and keep a shared ledger.
• If one item is disputed, pay the undisputed part on time and list the disputed items in writing.

Frequently asked questions

How much advance should I pay an interior designer?

For execution, a booking advance of about 10–20 per cent of the contract value is common and balanced, paid against a signed contract with the drawing list and specification attached. For a separate design fee, about 20 per cent on signing is typical. Be cautious of requests for 50 per cent or more before any work is visible on site.

Is it normal to pay 50 per cent advance for a modular kitchen?

A larger payment, often around 40–50 per cent of the modular package's value, is common when a factory order is placed, because the factory cuts material to your sizes. Pay it only after the drawings, finishes, hardware brands and delivery date are confirmed in writing, and keep the balance for delivery and installation, with a small amount held for snags.

What is retention money in an interior contract?

Retention is a part of the contract value — commonly 5–10 per cent — that the client holds back until the snag list is closed after handover. In commercial fit-outs it is usually held for a defect liability period, often 12 months, or released against a bank guarantee. It gives the contractor a reason to finish the last small items.

Should GST be paid on the advance?

The firm should issue a proper document for every payment, including advances, and show GST separately on its tax invoices with its GSTIN. How GST applies to advances depends on the nature of the supply and current rules, so ask the firm's accountant or your own to confirm, and make sure the final invoices add up to the contract value plus GST.

What if the interior work is delayed but the payment date has arrived?

Payments should be linked to stages, not dates. If the stage has not been reached, the payment is not yet due. If the delay is caused by late approvals or material choices on the client's side, the timeline extends accordingly and the stage payment falls due when the stage is complete.