How to price interior painting

Quick note on the numbers below: they're published national ranges, useful for sanity-checking. Your market sets your price. A number that wins work in Scranton loses money in San Jose. Use the ranges to check you're not way off — then price from your own costs.

The three methods

• Per square foot — measure wall area, multiply by a rate. Most consistent, scales to any job, and it's what the big outfits use. Downside: you have to measure.
• Per room — flat price by room type. Fast to say on the phone, fine for cookie-cutter repaints. Falls apart on vaulted ceilings, heavy prep, and "one room" that turns out to be a room plus a stairwell.
• Time and materials — day rate × days + paint. Fair for genuinely unknowable scope (restoration, heavy repair), but homeowners hate open-ended bills and you're penalized for being fast.

Most small crews land on per-square-foot to build the number and per-room language to communicate it. That's the right instinct — measure like an engineer, talk like a neighbor.

Per-square-foot ranges (2026)

Angi's 2026 data puts walls-only interior painting around $2–6 per square foot of wall area, averaging about $2.75, and roughly $4.70 per square foot when trim and ceilings are included. That spread is doing a lot of work — the low end is a clean, empty-room repaint; the high end is tall ceilings, color changes, and real prep.

Per-room ranges (2026)

Published per-room figures vary wildly between sources because "a room" isn't a unit of measure. Angi reports interior painting at roughly $950–2,900 per room including trim and ceilings; other 2026 guides put a straightforward walls-only bedroom in the $300–900 band. Both can be right — they're describing different rooms and different scopes. Which is exactly why the per-room method needs written boundaries: what size, what's included, what triggers an upcharge.

What actually moves the number

• Ceiling height. Everything above 9 feet means ladders, poles, and slower cutting.
• Surface condition. Nail pops, cracks, water stains, wallpaper glue — prep hours are real hours.
• Color change. Dark to light means primer or a third coat. Deep accent colors can need three coats on their own.
• Trim, doors, and closets. Brushwork is slow. A room "with trim" can carry more labor than the walls.
• Number of colors. Every color is a cut line and a cleanup.
• Occupied vs. empty. Furniture moving and masking around a lived-in house adds real time.

Materials: the smaller, easier half

Labor runs 75–85% of an interior job's price, so materials won't make or break the quote — but sloppy materials math still leaks money. Wall sqft × coats ÷ 350 gives gallons (see the full walkthrough in how to quote a painting job). On price: 2026 retail for quality interior lines runs roughly $40–90 a gallon — Benjamin Moore ben around $40–50 up to Aura at $75–90, with Sherwin-Williams' lines in a similar band at full retail before sales and contractor account pricing. Charge for the paint you'll actually buy at the price you'll actually pay, plus your standing sundries kit.

Labor: price the days honestly

U.S. painters bill roughly $330–600 per painter-day in 2026 ($25–75/hour, higher in expensive metros). Pick your day rate from your costs — wages, taxes, insurance — not from this paragraph. Then estimate crew-days from the walk-through, and remember the day count is where jobs go wrong: rolling open walls is fast; cutting, trim, and prep are not.

Overhead and margin — the part solo painters skip

Materials plus labor equals cost. Add overhead (the truck, insurance, fuel, software, unpaid quoting time — commonly spread at 10–15%) and then margin (the actual profit, commonly 15–25%). Skipping these is the difference between owning a business and owning a strenuous hobby.

Worked example — a 4-room repaint

Illustrative numbers, deliberately ordinary: four rooms, walls only, two coats, 9-foot ceilings, light prep, one color. About 1,600 square feet of wall after openings.

Sanity check against the published ranges: $3,011 ÷ 1,600 sqft ≈ $1.88 per square foot of wall — just under the bottom of Angi's $2–6 walls-only range. That's plausible rather than alarming: this example is deliberately the easiest possible job (light prep, one color, no ceilings or trim), and published per-sqft figures average in messier work. If your method lands you way outside the range in either direction on a normal job, that's the flag to re-check the day count.

Want this math in your pocket on the walkthrough? The one-page repaint pricing cheat sheet has the formulas, a room quick table, and this same overhead-and-margin structure as a printable PDF.