Void Period
Quick answer
A period when a rental property is empty and producing no rent — typically between tenancies. During a void the landlord still pays the mortgage, and usually becomes liable for council tax and utilities. Voids are one of the biggest hidden costs in buy-to-let.
At a glance
- Cost
- Lost rent + mortgage + council tax + utilities
- Liability
- Council tax usually falls on the landlord
Full guide
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Open full guideWhy Void Period matters for landlords
A single month’s void wipes out roughly 8% of a year’s rent, so cutting void days is often more valuable than chasing a higher headline rent that sits empty. Voids also flip council tax liability onto the landlord, and empty-property discounts have shrunk or disappeared in many areas. The levers that matter are re-letting before the outgoing tenant leaves, keeping good tenants (renewal beats re-marketing), and turning the property around fast between lets.
Worked example
Sam’s £1,100-a-month flat sits empty for six weeks between tenants while it is repainted and re-let. That is about £1,650 in lost rent, plus roughly £200 of council tax — now his liability, with the empty-home discount long gone — and around £60 of standing-charge utilities: close to £1,900 gone. Had he taken the outgoing tenant’s check-out early, started marketing two weeks before they left and turned the flat around over a weekend, the void could have been a few days. Across a portfolio, cutting the average void from six weeks to one is worth far more than a £25-a-month rent rise.
Illustrative scenario based on real UK landlord casework patterns. Names and addresses are fictitious.
Common Void Period mistakes UK landlords make
- Only marketing the property after the old tenant has left, guaranteeing weeks of empty rent.
- Forgetting that council tax and standing-charge utilities land on you during a void.
- Chasing a higher rent that leaves the property empty longer than the extra rent is worth.
What to do this week
- Serve the check-out and start marketing before the current tenant moves out.
- Prioritise renewal of good tenants — retention is cheaper than re-letting.
- Have a fast turnaround plan (clean, minor repairs, photos) ready for changeover day.
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Official sources
LetCompliance editorial reviews this entry every quarter against the sources above. Always confirm specific duties with a qualified solicitor or your local council.
Related terms
Council Tax
The tax charged on residential property by the local authority. Tenants are usually liable while the property is let as their main residence. Landlords become liable during void periods and for most HMOs (where each tenant has their own AST).
Form 6A (Section 21 Notice)
The prescribed form landlords used to serve a Section 21 “no-fault” possession notice in England, until Section 21 was abolished on 1 May 2026 by the Renters Rights Act 2025. Two months’ minimum notice; it was void if any of the prerequisites (deposit protected within 30 days, valid Gas Safety record, current EPC, How to Rent guide given) was missing. Since 1 May 2026 Form 6A is no longer issuable for new notices and possession is pursued under Section 8 / Form 3A only.
Pet Request (Renters’ Rights Act)
The tenant’s statutory right, under the Renters’ Rights Act 2025, to request permission to keep a pet in a rented home in England. The landlord must respond in writing and cannot unreasonably refuse, and blanket “no pets” clauses in the tenancy are void. The landlord has 28 days to reply (extendable by a further 7 days if they reasonably need more information) and can make consent conditional on reasonable terms.
Remortgaging
Switching a mortgage to a new deal, either with the same lender (a product transfer) or a new one, usually when a fixed or tracker period ends. Landlords remortgage to avoid rolling onto the lender’s higher standard variable rate, or to release equity to fund another purchase.
Rental Yield (Gross / Net)
The annual return on a rental property as a percentage of its value. Gross yield is annual rent ÷ property price × 100; net yield subtracts running costs (management, insurance, maintenance, a void allowance, ground rent/service charge) before dividing. Neither is the real return until you also take off mortgage interest and tax — after Section 24 and Making Tax Digital, the after-tax yield is what actually matters.
Vacant Possession
Handing over a property empty of people and belongings, with the tenancy legally ended. A landlord recovers vacant possession at the end of a tenancy, or through the courts and, if necessary, county court bailiffs or High Court enforcement officers after a possession order.