If you've spent any time in Dublin, Cork, or Galway in the last decade, you've had this argument with yourself: "I could rent the spare room and clear €700 a month tax-free under the rent-a-room scheme, but I'd lose my evenings, my Saturday mornings, and any chance of cooking what I want when I want." So you keep the room empty. The scheme stays untouched. The €700/month sits on the table.
There's a third option nobody really talks about, and it's the one most Irish renters and homeowners never seriously consider until someone walks them through it: list the room as storage. Not for a person — for someone else's labelled boxes. Identity-verified renter, fixed monthly fee, four-month average commitment, exactly zero cooking smells in your kitchen. The income runs €100–€200 a month per spare room, €80–€140 a month per garage, and you keep your bathroom, your evenings, and your sanity.
Below: the actual Irish numbers in 2026, why this is structurally different from rent-a-room, the tax angle in 90 seconds, and a worked comparison with the housemate option for anyone who's been doing the spare-room maths in their head for three years and never pulled the trigger.
Why the spare room conversation never goes anywhere
Rent-a-room in Ireland is genuinely generous: €14,000 a year tax-free, no PRSI, no USC. On paper it's the best side income in the country. In practice it has one cost most people undercount until they've lived through it: you're sharing the kitchen. And the bathroom. And the wifi. And the front door key, and the bin rota, and the question of who left the dishwasher half-loaded for two days.
Most people do the maths once, decide it's worth it, list on Daft, get a flatmate, and discover within six months that the €700 a month buys real money but eats a lot of life. So they wait until the lease ends, decide they need the space back, and the spare room sits empty for the next two years. Repeat once a decade.
The thing the conversation never gets to is that "rent the room" is a binary in most people's heads — either you live with someone or the room earns nothing. Storage hosting breaks that binary. The room can earn €120–€180 a month while staying entirely yours.
The Irish numbers in plain English (2026)
Spare bedroom used as a storage room (boxes only, no person sleeping there): €100–€200/month. Dublin sits at the high end (D6, D7, D14, D24 are the strong postcodes); Cork €90–€160; Galway €80–€140; Limerick / Waterford €70–€120; smaller towns €60–€100. Multiply by twelve: €720 at the bottom, €2,400 at the top.
Garage — single-car, dry, lockable: €80–€180/month nationally. Dublin commuter belt postcodes (D24, K67, A92, A94) are unusually strong because the renters there are flat-dwellers in the city centre with nowhere to put a snowboard, a guitar, or four boxes of inherited photos.
Attic with hatch access: €40–€90/month. Less per square metre but it's space you literally walk under every day and never use.
Combined: a typical 3-bed Irish suburb home with a spare bedroom + a garage + a partial attic stacks to €240–€370/month. That's €2,880–€4,440/year of storage income on a property that previously held a tired exercise bike, a half-built crib from 2018, and an unused dehumidifier.
The honest comparison: rent-a-room at €700/mo = €8,400/yr tax-free. Storage hosting (room + garage + attic) at €300/mo = €3,600/yr taxable. Net of tax (assume 40% marginal): ~€2,160/yr. The rent-a-room route is more income; the storage route is roughly a quarter of that, but it costs you nothing in lifestyle.
How storage hosting is structurally different from rent-a-room
No accommodation provided. The renter doesn't sleep there, doesn't shower there, doesn't cook there. They visit on average 1.7 times across a 4-month booking — twice if they remember the box of Christmas decorations they actually needed. Most hosts and renters message twice in the entire booking: once to confirm move-in, once at the end.
No tenancy. The contract is a licence to occupy a defined space for storing the agreed items. The Residential Tenancies Act 2004 doesn't apply (it's specifically for accommodation). There's no RTB registration, no Part 4 tenancy, no notice-period dance.
No personal compatibility test. The thing rent-a-room interviews try to do — work out whether you and the candidate flatmate can live together for six months without one of you snapping — is irrelevant when the candidate is a labelled box. You're checking that they're identity-verified, that their items fit, and that their move-in date works.
No ongoing relationship. A flatmate is a four-month-minimum partnership. A storage renter is a transaction with a long tail. The cheque arrives, the boxes don't move, you live your life.
The Irish tax angle, in 90 seconds
Storage income in Ireland is Case IV miscellaneous income on Form 11 (or Form 12 if you're PAYE-only and your total non-PAYE income is under €5,000). It's not covered by the rent-a-room scheme — that scheme is specifically for accommodation, not storage.
On €1,800 of storage income at the standard 40% marginal rate (most Irish hosts), you'll owe roughly €720 in income tax + USC + PRSI combined. Net: ~€1,080 a year. Better than zero. Better than the €0 the spare room earned last year.
If your total non-PAYE income across everything (storage + dividends + freelance + Etsy + everything) is under €5,000, you can self-assess via Form 12 — no Form 11 required. Most Packhood IE hosts fall under this. The admin is one short return per year. Packhood emails you a YTD earnings summary every January to make this trivially easy.
A side-by-side: rent-a-room vs storage vs leaving it empty
Leave the spare room empty: €0 income. Property tax is yours. Utilities standing-charge is yours. Two years from now, still empty.
Rent-a-room (housemate): €600–€900/mo headline, ~€8,400/yr tax-free. Real cost: a flatmate. Bathroom queue. Cooking smells. Bin rota. Fights about the heating. Six-month relationship minimum, often more.
Storage hosting (boxes only): €100–€200/mo per room (€120–€220/mo if combined with attic or garage). €1,200–€3,600/yr taxable. ~€720–€2,160/yr net. Real cost: identity verification (2 mins), photos (5 mins), and one box of paperwork in January.
These aren't competing options for the same person necessarily — some Irish hosts do rent-a-room and storage on different spaces in the same house. The point is that the spare room doesn't have to be a binary "share my home with a stranger or earn nothing." It can be a third thing.
How to start, in 20 minutes
Step 1 — five photos with your phone. One wide of the empty room/garage with the light on, two corners, one of the door, one of the entrance from the street.
Step 2 — measure (length × width × height). Three numbers.
Step 3 — three sentences: "Dry storage room in [postcode], 3.6m × 4.0m × 2.4m. Door locks from inside. Available 8am–9pm, seven days." That's it.
Step 4 — set a price 5% below the city's median (visible on Packhood IE listings). Booking speed beats price; you can raise on the next renter.
Step 5 — Stripe Identity verification (2 minutes). Then the platform handles the booking, the contract, the monthly payout. You write zero invoices, chase zero payments.
The take
Most people in Ireland have done the rent-a-room maths once, decided the housemate isn't worth it, and stopped thinking about the spare room. That's a defensible call. But "don't take a housemate" was never the same decision as "don't earn anything from the room."
Storage hosting is the option that wasn't on the original menu. Quieter income, less of it, but with no lifestyle cost — your mornings, your bathroom, and your kitchen all stay yours.
List the room. Twenty minutes. The cheque is automatic by month two. The flatmate stays imaginary.