Do you pay taxes on house hacking income?

Yes, but the rented portion comes with deductions most people never claim. An accountant’s plain-English version.

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I’m an accountant, so this is the question I actually enjoy. The short version: yes, the rent you collect is taxable income. The longer version is more interesting, because house hacking gives you a tax setup that pure homeowners and pure landlords don’t get.

A quick disclaimer before the numbers: I’m an accountant, not your accountant. This is how the mechanics work in general, run your specific situation past a CPA before you file.

The income side

The rent your tenants pay is income. When my upstairs tenant pays $1,200/month, that $14,400 a year goes on my return. Same with the basement short-term rental. There’s no hiding it, and you shouldn’t try.

The part that softens the blow

Here’s what most people miss: because you live in part of the building and rent out the rest, you split the property. The rented portion is treated like a business, and a business gets to deduct its expenses.

On the rental percentage of my duplex, I can deduct a share of:

• Property tax and insurance
• Utilities I pay for the building
• Repairs and maintenance, the boiler, the chimney work, ordinary fixes
• Mortgage interest on the rented portion
• Depreciation, a non-cash deduction that often wipes out the rest

That last one does a lot of work. Depreciation lets you deduct a slice of the building’s value every year even though you didn’t spend that cash. It frequently turns “taxable rental profit” into a paper loss. (I wrote a plain-English depreciation explainer here.)

How the split works

You allocate by space, square footage or number of units. If you live in one of two equal units, roughly half the building is “personal” (your home, with its own homeowner perks) and half is “rental” (deductible). The portion you live in doesn’t generate deductible rental expenses, but it also isn’t generating taxable rent. It’s a clean trade.

Don’t forget the day you move out

When you move out and rent your old unit, the whole building flips to rental, and your deductions go up accordingly. That’s part of why house hacking gets better on the tax side over time, not worse.

The takeaway

You’ll pay tax on house hacking income, but if you’re tracking expenses and claiming depreciation, the taxable number is often far smaller than the cash you collected — and sometimes it’s zero. The mistake isn’t paying the tax. The mistake is collecting the rent and never claiming the deductions you’re owed.

Keep clean books from month one. It’s the difference between a deduction you can defend and a guess you can’t.

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This is educational, not tax advice. Have a specific question? I read every message.

If you’re just getting oriented, read what house hacking is first.