My house won't sell. Should I rent it out instead?

Almost every seller whose home has sat unsold for a few months has this thought, and it is a sensible one to have. Letting turns a stalled asset into income and buys you time. It is worth doing with your eyes open, because the decision has three separate gates and most people only think about the first one.

First, is it really the market, or is it the price?

Be honest about this before you make any other decision, because letting will not fix a pricing problem, it will only postpone it. Asking prices across Britain fell 2% in August 2026 to an average of £364,999, according to Rightmove, and buyer demand is around 10% below last year. There is genuine softness. There is also a large gap between a home that no buyer wants at any price and a home that is priced above what the current evidence supports.

• No viewings at all usually points at the price or the photographs, not the market.
• Viewings but no offers usually points at something on the visit itself, or at a price the buyer cannot justify to a lender.
• Offers that keep collapsing points at the chain or the property's paperwork, not at demand.
• If similar homes near you are selling and yours is not, the market is not the explanation.

Do I need permission from my mortgage lender to let my home?

Yes, in almost every case. Consent to let is temporary permission from your existing lender to rent out a property you hold on a residential mortgage. It is usually granted for a fixed window, often with a fee and sometimes with a rate increase, and it is granted at the lender's discretion rather than as a right.

Letting without that consent breaches your mortgage terms. Lenders can demand repayment of the loan, and an insurer can refuse a claim on a home that is let while insured as owner occupied. This is the first phone call, not the last.

What tax will I pay on the rent?

Rental income is taxable income. HMRC allows a property allowance covering the first £1,000 of income from property rental, which is tax free. Above that, the rules on reporting are set out on GOV.UK:

If you do not normally file a return, you must register by 5 October following the tax year in which you had rental income. Mortgage interest is no longer deductible as a straightforward expense; relief is given as a basic rate tax credit, which is why higher rate taxpayers often find the profit smaller than the arithmetic on the rent suggests.

Will letting create a Capital Gains Tax bill when I do sell?

It can, and this is the part that surprises people years later. Private Residence Relief is the relief that makes the sale of your own home free of Capital Gains Tax. Once you move out, GOV.UK confirms that relief continues to cover the last 9 months of ownership even if you were not living there.

Beyond those 9 months, the period the property is let is not automatically covered. Letting Relief exists, but GOV.UK is specific that it applies where you lived in your home at the same time as your tenants. Moving out entirely and letting the whole property does not meet that test.

A two year let to wait out the market can convert a completely tax free sale into a taxable one. That is not a reason to rule it out. It is a reason to price it in.

What else changes when you become a landlord?

• Safety obligations: a valid gas safety record, electrical installation condition report and working smoke alarms are legal requirements, not optional extras.
• Deposits: a tenant's deposit must be protected in a government approved scheme.
• Insurance: buildings and contents cover has to be on a landlord policy, not a standard residential one.
• Agency fees: full management typically costs a percentage of the rent every month, on top of the tenant find fee.
• Void periods and repairs: budget for months with no rent and for the boiler that fails in January.

None of this is unmanageable. It is simply a second job with a legal floor, and it should be compared against the cost of the price reduction you were trying to avoid.

Can I sell the house while a tenant is living in it?

You can, but your buyer pool narrows sharply. Most residential buyers want vacant possession, and most residential mortgage lenders will not lend on a property with a tenant in place, which leaves investors and cash buyers. Investors buy on yield, and that generally means a lower price than an owner occupier would pay.

How do I decide, calmly?

Take the two options and give each one a real number rather than a feeling. On one side, the reduction that would genuinely sell your home this autumn, and what you would walk away with after fees and your mortgage. On the other, a full year of letting after every cost, plus the tax consequences of the years let.

One of those numbers is usually clearly better, and once you can see both, the decision stops being an anxious one. If the answer is to sell after all, the next question is simply what the right price is, and that is a question of evidence.

ValuQ gives UK homeowners free, side-by-side property valuations from competing local estate agents, so you can see several agents' reasoning on one screen before you decide whether to relist or let.