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Lease end countdown: when to advertise each room

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When to advertise each room
Type each room's lease end date and rent. You get every date to act on, earliest first.
Rooms
  • Lease ends
  • Lease ends
  • Lease ends
Start advertising first
11/21/2026Bedroom 1
Your rooms take longer to fill than the notice your lease asks for. Waiting for that notice before you advertise could cost $641.10 in empty days across these rooms. Ask early.
  1. Ask whether they are renewingBedroom 111/07/2026Saturday
  2. Ask whether they are renewingBedroom 311/07/2026Saturday
  3. Photos and listing readyBedroom 111/14/2026Saturday
  4. Photos and listing readyBedroom 311/14/2026Saturday
  5. Start advertisingBedroom 111/21/2026Saturday
  6. Start advertisingBedroom 311/21/2026Saturday
  7. Last day for their noticeBedroom 112/01/2026Tuesday
  8. Last day for their noticeBedroom 312/01/2026Tuesday
  9. Ask whether they are renewingBedroom 212/08/2026Tuesday
  10. Photos and listing readyBedroom 212/15/2026Tuesday
  11. Start advertisingBedroom 212/22/2026Tuesday
  12. Last day for their noticeBedroom 201/01/2027Friday
  13. Next resident can move inBedroom 101/01/2027Friday
  14. Next resident can move inBedroom 301/01/2027Friday
  15. Next resident can move inBedroom 202/01/2027Monday
Rule of thumb: Ask about renewing before you need the answer. A room you start showing the week its lease ends is a room that sits empty in January.

Most room leases end on 12/31, and the people who want a room in January are looking in November and December. Type each room's lease end date, the notice your lease asks for and how long a room takes you to fill. You get every date to act on, earliest first.

Work back from the day the lease ends

A room fills when someone signs, not when you post it. If a room usually takes you 40 days to fill, the listing has to go up 40 days before the lease ends, or the room sits empty for the difference.

So count back. Advertising starts that many days before the end. The photos and the listing need to be ready a week before that. And you need to know whether the resident is staying two weeks before either.

  • Start advertising: the lease end less the days a room takes to fill
  • Photos and listing ready: one week before that
  • Ask about renewing: two weeks before you need the answer
A landlord showing a bedroom to someone who wants to rent it

When the notice in the lease is too short

Many leases ask for 30 days of notice. If a room takes you 40 days to fill, waiting for that notice means listing 10 days late, and each of those days is a day of empty rent.

You do not have to rewrite the lease to fix it. Ask the resident early, in writing, whether they plan to renew. Most people will tell you weeks before they have to. For future leases, ask for notice at least as long as a room takes you to fill.

Why December matters in a house rented by the room

Students, interns and people starting new jobs all look for January rooms at the same time. A room that is listed in early December has the whole month of people looking. One listed after the holidays is competing with every room that did not fill.

If several rooms in one house end at once, stagger the showings so each room gets its own photos and its own listing, and so the house is not full of strangers on one weekend.

A freshly made bed with white linen beside a desk and a reading lamp

A worked example

A made-up example. A three-bedroom house. The lease asks for 30 days of notice, and a room usually takes 40 days to fill. Bedroom 1 ($650 a month) and Bedroom 3 ($600) end on 12/31/2026. Bedroom 2 ($700) ends on 01/31/2027.

Ask Bedroom 1 and Bedroom 3 about renewing
11/07/2026
Photos and listing ready
11/14/2026
Start advertising Bedroom 1 and Bedroom 3
11/21/2026
Last day for their notice
12/01/2026
Start advertising Bedroom 2
12/22/2026
Waiting for notice could cost$641.10

Each room is listed 10 days before its resident has to say whether they are leaving. Waiting for the notice instead costs 10 empty days per room: $213.70, $230.10 and $197.30.

Common questions

When should I start advertising a room for January?
Count back from the day the lease ends by the number of days a room usually takes you to fill. For a lease ending 12/31 and a room that takes 40 days, that is 11/21. Have the photos and the listing ready a week before.
Can I advertise a room before the resident gives notice?
Ask them first. Once a resident tells you in writing that they are not renewing, you can list the room. Check your lease and your state's rules on showing an occupied room, and give the notice of entry your lease asks for before each showing.
How is the cost of waiting worked out?
One empty day is the room's rent for a year divided by 365, rounded to the cent. The late days are the days between when you should start advertising and the last day for the resident's notice. Late days times one empty day is the cost.

These calculators are educational and are not legal, tax, lending, or accounting advice. Rules vary by state and by city, and your lease governs your own properties. Check your own requirements before relying on any number here.

When every room ends at once

RentCaddie asks each resident about renewing for you and lists the room the day they say no.

Each room has its own lease and its own end date. RentCaddie sends the renewal offer on the schedule you choose, records the answer, and puts the room on your public listings page with the day it is free, so applicants can apply before the current resident moves out.

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