Short answer. Gross short-term rental yields on Phuket's tourist west coast run 6–8% a year; after all costs, self-managed letting keeps 4–6% net; professional management on the right unit reaches 7.8–8.4% net at 72–78% occupancy. Long-term letting delivers 4–6% gross with near-zero hassle. The "guaranteed 7–10%" in the ads is not a yield — it's a pricing term, and below we unpack how those programs actually work. This is a numbers article: the full waterfall from revenue to net cash, a line-by-line model on a specific unit, yields by area, and a pre-purchase checklist for stress-testing any rental model. Every market figure comes from industry reports, with the source named.

Why the "6–12% Yield" in the Ads Is a Useless Number

The spread of promises in the market is so wide that analysts call it functionally meaningless: one figure blends gross and net, high season and full year, revenue before and after commissions. The rule for reading any offer: gross yield is rental revenue divided by the unit price, before a single expense. It excludes management and platform fees, condo dues, utilities, furniture wear, voids and taxes. Between the brochure yield and the money on your account sits a 30–50% gap — and this whole article is about computing it in advance.

Demand: What Phuket's Rental Market Actually Stands On

Sources are named per line; data covers late 2025 — H1 2026. Short-term rental aggregators (Airbtics, AirDNA, AirROI) measure active platform listings and their methodologies differ — use orders of magnitude, not decimals.

Three takeaways. First: the market stands on two different demands — tourist short-term (a seasonal curve from 91.8% in January to 66.9% in June) and year-round long-term (expats, winterers, remote workers — a median ~THB 35,000/month). These are different business models with different economics, not "I'll rent it out somehow". Second: the median short-term unit runs ~65% annual occupancy — if a developer's model shows 85%+ year-round, you're being shown January stretched across twelve months. Third: hotel ADR (THB 5,652) and the median private unit's (~THB 3,000) differ almost twofold — you compete with hotels through product and management, not through the fact of "an apartment near the sea".

Area context decides half the outcome — depth of tourist flow, seasonal resilience and the supply pipeline per zone are covered in the Phuket areas guide.

The Waterfall: How 8% Gross Becomes 4% Net

We model a typical unit — neither the best nor the worst: a one-bedroom condo of ~45 m² on the tourist west coast, price THB 7.5M, short-term letting through an operator. Figures are rounded — the structure matters; substitute your own:

What to take from this. (1) No expense line is optional: skip the operator and you pay platforms, cleaning and your own time instead; an "omitted" wear reserve simply becomes a surprise THB 300K refurbishment in year five. (2) 4.3% net is a normal result for a well-run self-managed unit, not a failure. (3) There are only two levers upward: revenue (unit, product, pricing, management — professional operators on deep tourist flow post 72–78% occupancy and 7.8–8.4% net) and the entry price (what you pay for those percentage points). Everything else is a constant.

The small-ticket trap nobody writes about: on cheap units, fixed costs eat a disproportionate share. A THB 2M studio in Rawai with 7–8% gross (annual revenue ~THB 140–170K per market data) keeps 3.5–5% net after CAM, utilities, cleaning and the wear reserve — because condo dues and an aircon replacement don't scale down with the unit price. A low entry does not equal a high net yield. For the comparison frame: even these percentages run multiples of a THB deposit (~1.5–2%) and of typical residential yields in European capitals (2–4%), with appreciation and the owner's own use usually stacking on top — but don't buy a small ticket for the brochure's 8%.

What Separates 4% from 8%: Five Yield Levers

The gap between the median unit (4–6% net) and the top of the market (7.8–8.4%) isn't luck — it's the sum of manageable decisions:

• Occupancy. The median ~65% versus 72–78% at professional operators is +12–20% revenue on the same unit: dynamic pricing, channels, response speed, ratings.

• ADR through product. Design, fit-out, photography and positioning move the nightly rate 10–20% within the same building — guests compare listings, not registered square meters.

• Direct bookings. Every booking that bypasses the platforms saves the 15–18% commission; strong operators run a double-digit share of direct and repeat bookings.

• Segment and unit mix. Villas and family units command multiples of studio ADR: the average listing's annual revenue (~THB 716K per Airbtics) is pulled up precisely by villas; the right format for the area's demand matters more than extra meters.

• The mixed model. Mid-term contracts in the low season close the calendar's main hole — June's island-wide 66.9% occupancy.

All five levers are operational: they are the answer to why, on the same market, one owner nets 4% and another 8. Which is exactly why choosing the project and the operator matters more than choosing "an area in general".

Yields by Area: Which Percentages Where, and Why

Gross = revenue/price before expenses; net = after operating costs, pre-tax. Condo-segment benchmarks for early 2026; a specific unit can fall outside the range in either direction.

Browse supply per strategy: Patong and Kata for deep short-term flow, Kamala for the mixed model, Bang Tao for premium long-term, Rawai for living and long lets, and Phuket new developments for construction-stage entry.

Short-Term, Long-Term, or the Mixed Model

• Short-term letting: maximum revenue and maximum work. It performs where tourist flow is deep (Patong, Kata, Karon, Kamala) and management is strong. Its enemies are the seasonal dip (June's island-wide 66.9%) and unit competition: ~11.8K active listings, with guests choosing on photos, reviews and nightly price.

• Long-term letting: 4–6% gross, but the cost structure is radically simpler — no platform fees, no turnover cleaning, no short voids, utilities on the tenant. Net approaches gross, and the unit depreciates slower. This is the Bang Tao model (premium rates from expat families), the south's and the value belt's.

• The mixed model: short-term in high season (November–April) + 1–6 month mid-term contracts in the low. It closes short-term's main gap — the summer dip — and makes particular sense in Kamala and Kata (where summer surf demand keeps even short-term alive off-season).

"Guaranteed Yield": How These Programs Actually Work

"Guaranteed 5–7% for 3–5 years" programs are a standard new-build sales tool. The honest mechanics: the guarantee is funded from the unit's price. The developer builds future payouts into the cost (program units often price above comparable ones without it) and returns part of your own money on a schedule. It isn't fraud — it's a discount paid in installments, packaged as yield. What to verify before signing:

• Who guarantees. Is the promisor the developer entity, the operator, or an asset-less SPV? A guarantee is exactly as reliable as the guarantor's solvency in year five.

• Percent of what base. 5% of a price with the program baked in can equal 4% of the unit's honest market price without it. Compare against comparable units sold without the program.

• What happens after. The most common shock is year six: the program ends and the unit meets the open market with real occupancy and real costs. Demand the operator's actual figures from running projects: occupancy, ADR, net owner payouts.

• Owner restrictions. How many nights a year you can stay, in which dates, and what the operator does with the unit (pooling, rotation, wear).

• The exit. Can you sell inside the program, does it transfer to the buyer, is there a buyback and on what terms — an unsecured "buyback at purchase price" is worth the paper it's printed on.

Taxes: What's Left After the State

Thai-source rental income is taxed in Thailand: non-residents face a 15% withholding at source; residents pay the progressive 5–35% scale with an expense deduction (a standard 30% of income, or documented actuals) — filing a Thai return often beats the withholding. Add the annual Land & Building Tax (token amounts from 0.02% of appraised value for a typical condo). The full breakdown with worked examples, including the remittance rule for residents: Thailand property taxes.

Total Return: Rent Plus Appreciation

Cash flow is half the answer. The other half is appreciation: the market is in a selective-growth phase (~+2% a year island-wide, +35–55% nominal over a decade per industry reviews), with scarce locations and strong projects appreciating first. The five-year frame: a quality west/northwest unit — total return in the order of 6–10% a year (4–6% net rent, up to 8.4% under professional management, plus selective appreciation), and above for the best scarce-location-plus-strong-operator combinations. Rent payback benchmarks: 12–17 years gross, 17–25 years net self-managed, ~12 years net at the top of professional management. The appreciation drivers per zone — the infrastructure cycle, the northwest's land scarcity, the south's supply pipeline — are unpacked in the areas guide linked above.

Checklist: Stress-Testing a Rental Model Before You Buy

• Re-run the developer's model at 60–65% occupancy across a full year with the seasonal curve — not January ×12.

• Request the operator's actual figures from running properties: occupancy, ADR, net owner payouts over the last 12 months.

• Build the waterfall line by line from this article, including 1% of the unit's value a year for wear and replacements.

• Check the supply pipeline: what's being built within 2–3 km that will hit the market as your unit's competitor within 2–3 years.

• Compare the "guaranteed" unit against comparables without the program — the price gap is the guarantee's cost. Run the legal side by the standard playbook: the buying process and ownership structures.

• Model long-term letting as the fallback: if short-term and long-term net figures land within a point of each other, short-term's workload isn't paying for itself.

• Keep the currency frame: a baht yield is not a yield in your home currency; THB volatility against the dollar and euro adds its own variance to the result.

This material is informational and not investment advice.

FAQ

What is the real rental yield on a Phuket condo?
Gross on the tourist west coast — 6–8% a year; after management, condo dues, utilities, wear and voids, self-managed letting keeps 4–6% net, and the best professionally managed units reach 7.8–8.4% net at 72–78% occupancy. Long-term letting runs 4–6% gross with minimal costs.

What occupancy do Phuket short-term rentals achieve?
The median platform unit runs ~65% a year (≈237 nights, per Airbtics data for 2024–2025). The seasonal curve is steep: the hotel market falls from 91.8% in January to 66.9% in June; in the budget south the swing is wider still — 80–90% in season versus 40–55% in summer.

Should I trust a developer's 7% guaranteed return?
Guarantee programs are legal mechanics, but they return part of the unit's price on a schedule rather than market yield. Verify: the guarantor's solvency, the unit's price against comparables without the program, the terms after it ends, and your exit rights. The real test is actual owner payouts in the operator's already-running projects.

Which is more profitable: short-term or long-term letting?
Short-term wins on gross revenue, but the gap compresses after costs: 4–6% net short-term against 3.5–5% nearly effortless long-term. Short-term pays off in deep-flow areas with strong management; long-term fits Bang Tao, the south and the value belt. The mixed model closes the summer dip.

Which costs eat the yield?
Management and sales channels (20–30% of revenue, or 15–18% platform fees plus cleaning if self-managed), condo dues (CAM ~THB 40–80/m²/month), utilities, the wear-and-replacement reserve (~1% of unit value a year — the line every marketing calculator skips), voids, and taxes (15% withholding for non-residents).

Can I buy with a mortgage and lever the yield up?
Practically no: mortgage financing for foreigners in Thailand is close to unavailable (a handful of banks, strict terms, high rates), so the non-resident market runs on cash. Developer installment plans during construction are the only common payment-stretching tool; the classic leverage of European or US markets doesn't exist here — which, incidentally, is one reason the market is resilient in downturns.

How do I estimate a specific unit's yield before buying?
The formula: ADR × realistic nights on the seasonal curve (benchmark 60–65% of the year) = gross revenue; minus management/channels, CAM, utilities, 1% wear reserve and insurance = net operating income; divide by the full acquisition cost including transaction costs (2.5–6.3% on top). Compare the result with the 4–6% market norm — anything promised far above it needs an explanation of where it comes from.