When Should a Tile Setter Invoice a Customer?

Short answer: When should a tile setter invoice a customer is answered by the cure clock, not by the last tile. Mortar generally wants about 24 hours before grout, a shower receptor gets filled to at least 2 in at the threshold and held for 24 hours, and grout has its own cure before sealer. A 35 sq ft bathroom is a three-day job. Take material money up front, draw when the substrate and waterproofing pass, and collect the balance on grout-and-clean day.

Tile is a trade where the square footage is small, the days are long, and the job is not finished when the tile is. Waiting for one payment at the very end means financing three or four working days plus special-order material on a ticket that looks tiny on paper. The document itself is ordinary, and what to include on an invoice covers that part.

When should a tile setter invoice — at set, at grout, or in stages?

The number of cure breaks in the job decides it, and different tile work has very different numbers of them.

Job	Billing shape	What sets the shape
Kitchen backsplash, 30 sq ft	Single invoice, collected on grout day	Set and grout can land in two consecutive days with no wet-area work
Bathroom floor, 35 sq ft	Material deposit, balance on grout day	Small area, three days, most of the cost in labor and setting material
Tub surround	Deposit, balance at grout	Substrate and waterproofing add a day nobody can see
Full shower with a built pan	Deposit, draw at the flood test, balance at grout and clean	The flood test is a dated, verifiable event
Large-format open floor	Deposit, draw at substrate flat and ready, balance at grout	Flattening the substrate can be a full day before any tile
Heated floor	Deposit, draw after the mat is set and the resistance reading logged	A separate system with its own warranty and its own test
Work for a builder or GC	Their pay application cycle, with retainage	The subcontract fixed the rhythm before you priced anything

The pattern to notice is that tile jobs contain natural pauses that are not idle time — they are the material doing its job — and each pause is a defensible place to bill.

Why does a 35 sq ft bathroom take three days to bill?

Because the square footage measures the tile and not the schedule.

Stage	What holds the clock	Typical wait before the next stage
Demo and substrate	Cement board fastened and taped, or the old floor ground clean	Same day
Waterproofing	Liquid membrane coats, per the data sheet	Cure between coats, then before tiling
Flood test on a receptor	2 in of water at the threshold, level marked	24 hours, and a measurable drop is a failure
Setting the tile	Mortar open time and coverage	Commonly around 24 hours before grouting
Grouting	Cementitious grout initial cure	Hours before final haze cleaning, longer before wet use
Sealing	Grout cure per the product	Often several days after grouting

Every one of those windows is printed on a data sheet, and the data sheet governs, since it is attached to the warranty. Three days is normal for a 35 sq ft bathroom, which means a per-square-foot price that looked healthy on paper can turn out to be two days of a two-person crew against a very small number. Nobody should carry three days of labor plus material on a single end-of-job invoice.

Should the substrate stage be its own line and its own draw?

Yes, and it is the draw customers most need to see, because it buys them something invisible.

Under the tile there is a stack that costs real money and takes real hours: cement backer board with its screws and tape, a liquid or sheet waterproofing membrane in wet areas, a crack isolation membrane on slabs, a heat mat with its resistance measured and logged before and after setting, and on large-format work a flattened substrate, since a big tile spans further and shows every dip as lippage.

That stack is the most commonly omitted item in a bathroom estimate, and it is the stage where the customer sees a room that looks exactly as torn up as it did yesterday. Put it on the estimate as its own priced scope, invoice it when it passes, and attach evidence: the flood test photo with the marked water level after 24 hours, the heat mat resistance reading, the membrane product name. A draw against a documented test is a different conversation from a draw against “we did some prep.”

Does tile size and layout change what the invoice should say?

It changes both the unit and the honesty of the number.

Square footage alone describes an open floor well and a small bathroom badly. A 35 sq ft bathroom with a toilet flange, a vanity toe kick, a door jamb, and a tub apron might contain more cuts than 200 sq ft of open kitchen floor, and each cut is a trip to the saw. So the invoice for a cut-dense room should carry a minimum job charge or a small-room rate, stated plainly, rather than a square-foot figure that makes a two-day job look like a two-hour one.

Layout	Typical waste allowance	What it does to the day
Straight lay, square room	Around 7 to 10 percent	Fastest production per square foot
Diagonal	15 percent and up	Every perimeter piece is a cut
Herringbone or chevron	15 to 20 percent	Slower per square foot as well as wastier
Large-format	Lower cut waste, higher breakage and substrate cost	Flatness work and lippage control add a stage
Small mosaic sheets	Sheet count rather than percentage	Slow at edges, and the sheet grid has to line up

Wall tile costs more per foot than floor tile because gravity is working against you and every course has to be supported until it grabs. Ceiling tile, in a shower or a niche top, is the most expensive surface in the trade. Say which surface each line refers to, and price them separately.

How much should a tile deposit cover, and why?

The material, because tile is the least returnable product in finish construction.

Tile is ordered by the job against a dye lot, and a partial box that has been opened and cut has no resale value. Add the setting materials, which are not small: mortar by the bag at the coverage rate for that tile size, waterproofing by the kit or the pail, grout by the color, backer board by the sheet, screws, trim profiles by the piece, and a heat mat if the job has one. On a shower that stack can be most of the job’s hard cost, and it leaves your account before day one.

Write the deposit on the estimate as what it actually is: material ordered for a scheduled start date, tied to the specific dye lot. Some states cap residential deposits, so check the rule where you work and use an early progress draw instead of a larger deposit if a cap applies.

What does waiting until the very end cost on a tile job?

Three things, and only one of them is interest.

The bathroom goes back into service the moment the grout is clean, and urgency leaves with it. An invoice presented while the customer is still standing in a room they could not use this morning collects at a different rate from one that arrives after two weeks of showers.

Complaints arrive on a delay that matches the cure. Grout lightens as it dries and rarely matches the sample chip exactly. Efflorescence can bloom on cementitious grout. Hairlines can appear at a change of plane where the installation wanted a soft joint. None of that is necessarily a defect, and all of it looks like one to someone who has been staring at it for a fortnight. Bill on grout day and those are conversations about curing. Bill in week three and they are conversations about your invoice.

And the file goes cold. Photos of the membrane, the flood test, and the substrate live on a phone that fills up, and the sequence in how to get clients to pay is short when that evidence is attached to the job and long when it is not.

What rhythm works with a builder or a property manager?

Theirs, and the trick is matching their language rather than your schedule.

A builder pays on a monthly pay application against a schedule of values, with a cutoff date unrelated to when you finished the guest bath, retainage held until close-out, and lien waivers exchanged at each payment. Your invoice has to carry their job number, lot, unit, phase code, and PO, and it has to describe the work using the words their schedule of values uses, or it sits in a pile while somebody decides whether the two lines match. Billing a business rather than a homeowner changes the document in ways set out in how to invoice a company.

For repeat work — a property manager with twenty units, a builder running four houses — pick a cadence and never deviate from it. Bill by room complete, or bill every Friday for the week’s completed scopes. A predictable cadence gets you into an accounts payable run instead of onto somebody’s desk, and it removes the awkward call entirely.

Does invoicing on the day actually help on tile?

More than most trades, because the peak visual moment is precise and brief.

A floor that has just had the haze cleaned off it is the best that installation will ever look: grout uniform and slightly damp, tile polished, everything sharp. Two weeks later the grout has lightened unevenly, the customer has found the one cut behind the toilet, and a bath mat is covering your best work. Build the invoice on the last wipe, walk the room with a light held low so the two of you find any lippage together, list the punch items on the document or write that there were none, and take the payment before you carry the buckets out.

What price sits behind the invoice, and how do you set it?

Build the number from your own stack rather than a neighborhood rate.

Start by separating three scopes that get charged as one: demolition by what the old surface actually was, substrate and waterproofing by the sheet, the pail, and the test, and setting by tile size and layout. Then set a separate production rate for each of floor, wall, and ceiling, and a separate one for each layout, because straight-lay 12 by 24 and herringbone mosaic are not the same trade in the same room. Time your own crew on each and use those minutes.

Convert to a loaded hour: wage plus payroll burden, workers comp and liability, van, mixer, wet saw and blades, and the unbilled hours spent measuring, ordering, and chasing a dye lot. Divide by the hours you actually sell.

Then take profit as a margin rather than a markup. Adding 25 percent to $2,400 of cost bills $3,000 and leaves you 20 percent. Dividing that cost by 0.75 bills $3,200 and leaves the 25 percent you intended to keep. Markup multiplies and margin divides, and getting them the wrong way round is why a fully booked tile year can finish flat. Published per-square-foot installed rates move enormously with region, tile size, layout, wet-area work, and how much of the job is cuts — use them to notice you are off by half, never as the price itself.

What belongs in the file when the grout is clean?

The dye lot and the tile SKU, the setting material and membrane names, the flood test photo with the water level marked and dated, the heat mat resistance readings, the substrate photos, the spare tile count you left behind, the signed acceptance, and the miles to the tile shop and the supply house.

Keel is built for the invoice made on a bucket with grout dust on your hands. It is an iOS app that runs entirely on the device: no account, no bank connection, no cloud, no login, and an App Store privacy label reading Data Not Collected. The invoice gets built in the finished room in about a minute, with your numbering, your logo, your brand color, and the stages on their own lines — demo, substrate and waterproofing, setting by surface, trim by the piece — plus a payment link the customer scans as a QR code while you pack the saw. Tile shop receipts get photographed at the counter and read on device by Apple Intelligence, so the dye lot needed for a repair years later stays attached to the job. Material runs log as mileage. Freeboard shows cash minus tax reserve minus committed invoices minus buffer, which for a trade buying non-returnable material before it starts says whether next week’s shower is funded. The ledger is append-only and hash-chained, and the year exports as one file or as the Accountant Pack, a CSV plus a one-page summary PDF, the same pile described in a contractor receipt organizer. Free is $0 with unlimited invoices, receipts, and mileage. Keel Pro is a one-time $249.99 Lifetime purchase, not a subscription.

Frequently asked questions

When should a tile setter invoice a customer?

Take a material deposit before ordering, since tile is bought against a dye lot and opened boxes have no resale value. On staged work, draw when the substrate and waterproofing pass, using the flood test as the trigger. Collect the balance on grout-and-clean day, while the room is at its best and the customer has just got it back.

Do I invoice a tile job when the tile is set or after grouting?

After grouting and the final haze clean. Mortar commonly needs around 24 hours before grout goes in, so the tile being down does not mean the job is finished or the room is usable. Grout day is when the customer sees the completed work and when the room returns to service, which makes it the strongest collection moment on the job.

Should I charge a deposit for a bathroom tile job?

Yes, sized to the material you buy before you start: tile against a specific dye lot, mortar by the bag at that tile size’s coverage rate, waterproofing, grout, backer board, trim profiles, and any heat mat. Write it on the estimate as material ordered for a scheduled start date, and check whether your state caps residential deposits before setting a standard percentage.

How long does a small bathroom tile job actually take?

Around three days for roughly 35 sq ft, which is why square footage is a poor guide to price. Substrate and waterproofing take a day and produce nothing visible, setting takes a day, mortar cures roughly 24 hours, and grouting plus the final clean takes the third. A shower receptor adds a 24-hour flood test on top of that.

What is a flood test and can I bill for it?

The receptor is filled with water to at least 2 in at the threshold, the level is marked, and it is held for about 24 hours; any measurable drop means the waterproofing or the drain connection failed. Model plumbing codes call for a shower receptor test and most jurisdictions adopting them enforce it, so confirm what yours requires and whether an inspector has to witness it. Either way it is a dated verifiable event, which makes it an excellent progress draw trigger because a third-party standard sets the pass mark rather than your opinion.

How do I bill tile work for a builder or a GC?

On their pay application cycle against their schedule of values, with retainage held until close-out and lien waivers exchanged at each payment. Put their job number, lot, unit, phase code, and PO on the invoice, and describe the work in the same wording their schedule of values uses, or the line sits unmatched while somebody works out what it refers to.

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This article is general information, not professional or tax advice.