A few years ago, one of my tenants called me at 9 p.m. because the water heater in unit 4 had stopped working. I paid about u00a568,000 for a same-week replacement, no argument, no hesitation. Two months later, a different tenant in the same building asked me to fix a hole in the drywall he’d punched during an argument with his roommate. That one I did not pay for. Same building, same landlord, two completely different answers u2014 and understanding why is one of the most important skills I’ve built managing 9 properties over the past 15+ years.
Landlord-tenant liability isn’t complicated once you know the underlying rule, but a huge number of new landlords get it wrong in both directions. Some pay for damage they never should have touched. Others try to bill tenants for normal deterioration and end up in a dispute that costs more in stress than the repair would have. Here’s how I actually split it.
The core rule: wear-and-tear vs. damage
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Everything comes down to one distinction. Normal wear-and-tear u2014 the gradual deterioration that happens just from someone living in a space u2014 is the owner’s responsibility. Damage caused by a tenant’s negligence, misuse, or accident is the tenant’s responsibility. That sounds simple, but the line gets blurry fast, so I keep a mental checklist: would this have happened anyway, over time, even to a careful tenant? If yes, it’s on me. If no u2014 if it required someone to do something unusual, careless, or destructive u2014 it’s on them.
Faded wallpaper after 6 years, worn carpet fibers near the entryway, a wall outlet that finally fails after 12 years of use u2014 all wear-and-tear, all mine. A cigarette burn in the tatami, a cracked window from a slammed door, mold from a tenant never running the bathroom fan u2014 all tenant-caused, and I bill for those against the deposit.
What falls on the landlord
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These are the categories I budget for every single year, roughly 5u20137% of gross rental income across my portfolio:
- Structural issues u2014 roof, foundation, load-bearing walls
- Plumbing and electrical systems that fail from age, not misuse
- Built-in appliances that break down under normal use (water heaters, stove units, ventilation fans)
- Exterior maintenance u2014 gutters, siding, shared hallway lighting
- General fading, minor scuffs, and carpet wear from ordinary foot traffic
- Pest issues that existed before the tenant moved in or stem from the building itself
I’ve learned to treat these as fixed costs of doing business rather than surprises. On one of my older properties, a 22-year-old building, I replaced the entire water supply pipe system for about u00a51.2 million because the original galvanized pipes were corroding from the inside. That’s squarely on me u2014 no tenant action caused it, and no reasonable lease clause could shift that cost.
What falls on the tenant
Tenants are responsible for damage they cause through negligence, accidents they don’t report promptly, or intentional acts. In my experience this covers roughly 3u20134 incidents per year across my 9 properties, and it includes things like:
- Holes in walls from hanging heavy items without anchors, or from impact damage
- Water damage from an overflowing bathtub left unattended
- Broken fixtures from clearly rough use u2014 a shattered toilet lid, a bent door handle
- Stains or burns on flooring, cigarette damage in non-smoking units
- Pet damage when a no-pet clause was violated
- Lost keys requiring a lock replacement (I charge around u00a515,000 for this)
The key detail most new landlords miss: you generally can’t deduct for these from the security deposit without documentation. I photograph every unit at move-in and move-out u2014 roughly 40 to 60 photos per turnover u2014 because without that comparison, a dispute over a stain or a scratch becomes your word against theirs.
The gray zone: reporting delays
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This is where most of my actual disputes happen, not in the wear-vs-damage question itself but in timing. If a tenant notices a small leak under the sink and doesn’t tell me for 3 weeks, and it turns into water damage affecting the flooring below, I consider that partially the tenant’s liability u2014 the original leak might have been my responsibility to fix, but the delay in reporting it turned a u00a520,000 repair into a u00a5180,000 one. I spell this out in my lease now: tenants must report any leak, unusual noise from appliances, or visible mold within 48 hours, or they share liability for damage that results from the delay.
How I document and prevent disputes
The single biggest thing that’s reduced my liability arguments over the years is a detailed move-in condition report, signed by both parties, with photos attached. I also do a light mid-lease check-in around the 12-month mark for tenants staying multiple years u2014 not an inspection exactly, more a “how’s everything holding up” conversation that lets me catch small issues before they become expensive ones. It costs me maybe an hour per unit per year, and it’s saved me from at least two serious disputes that could have gone to arbitration.
Setting expectations in the lease
My lease agreements now spell out specific dollar-equivalent responsibilities rather than vague language. Instead of “tenant is responsible for damage,” I list examples: nail holes beyond a reasonable number, non-professional paint jobs, appliance misuse voiding warranty coverage, and unauthorized structural changes. Specificity up front prevents almost every argument at move-out, because the tenant already knows what “damage” means in concrete terms rather than discovering it during a deposit dispute.
Getting this split right isn’t about winning every argument with a tenant u2014 it’s about being predictable and fair enough that good tenants stay, and disputes stay rare. That’s the approach I use across all 9 of my properties, and it’s kept my annual dispute count in the single digits for over a decade.
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15 years of landlord experience u00b7 3 apartment buildings u00b7 DIY renovations that saved millions of yen. Browse all articles at diytosan.com
