Core answer: The rent-vs-buy decision hinges on the price-to-rent ratio: home price ÷ annual rent. Below 15 → renting is usually cheaper; above 25 → buying leans better (if you stay 7+ years); 15–25 → depends on appreciation, rates, and your mobility. In China's major cities ratios run 40–60 (¥5M home renting for ¥8k/month = 52), among the world's highest — pure math often favors renting there, with buying justified by schooling rights, stability, and leverage beliefs.
The core numbers
| Ratio (price ÷ annual rent) | Interpretation |
|---|---|
| < 15 | Buy territory |
| 15–25 | Gray zone |
| > 25 | Rent territory |
| 40–60 (typical tier-1 China) | Rent wins on cash flow by far |
Worked check: ¥3,000,000 apartment renting at ¥5,000/month → annual rent ¥60,000 → ratio 50. The same ¥3M in a 2.5% deposit yields ¥75,000 — interest alone covers the rent with change.
The true cost of buying (people forget half of these)
- Interest: ¥2M loan, 3.1% first-home rate, 30 years equal-payment → ¥1.08M total interest.
- Opportunity cost: the ¥900k down payment at 3% = ¥27k/year foregone.
- Transaction costs: deed tax 1–3% + agency 1–2.7% + renovation ¥150–300k; round-trip selling again costs another 2–3%.
- Maintenance: 1%/year rule of thumb; Chinese apartments add property fees ¥2–4/m²/month.
- Illiquidity: selling takes 3–12 months in a soft market.
The true cost of renting
- Rent growth (historically 2–5%/year in good districts, flat in soft markets)
- Instability (landlord sales, school-enrollment constraints — 学区房 policies vary)
- No forced savings; the discipline to invest the difference is on you
Worked examples
Example 1 — Tier-1 city professional. ¥4.5M home, rent ¥7,500/month. Buy: down ¥1.35M + loan ¥3.15M at 3.1% = ¥13,450/month + fees ¥400 + maintenance ~¥375 → ¥14,200/month cash out. Rent: ¥7,500. Difference ¥6,700/month invested at 3.5% for 10 years ≈ ¥950k. Buying wins only if the home appreciates ≥ ~1.8%/year AND you stay 10+ years AND school rights matter to you.
Example 2 — Tier-3 city. ¥800k home renting ¥2,000/month → ratio 33, still rent-leaning; but mortgage at 3.1% = ¥2,700/month vs rent ¥2,000 — a 5-year-stay + family stability argument can tip it.
Example 3 — The break-even horizon. Transaction costs ~8% round-trip on a ¥3M home = ¥240k; if ownership saves ¥2,000/month vs renting, you need 10 years just to recover the friction. Mobility under 5 years → rent, almost always.
Common mistakes and myths
- "Rent is throwing money away" — interest, taxes, and maintenance are also thrown away; compare unrecoverable costs on both sides.
- Ignoring the ratio — at 50× annual rent, buying is a lifestyle choice with an investment excuse; say it honestly.
- Assuming past appreciation — 2010–2020 gains don't underwrite 2025–2035; population flow and inventory decide.
- Forgetting leverage cuts both ways — 3× leverage amplifies a 10% price drop into a 30% equity loss.
- Believing owning is always more stable for kids' schooling — policies shift (多校划片, 租购同权 pilots); verify the current district rule before paying the premium.