Costs of Renting Out a House in the UK

Gross rent is not profit

People google “costs of renting out a house UK” after a friend quotes a monthly rent. The useful number is rent after voids, fees, finance, repairs, compliance and tax — then after your time.

If that residual is thin, “keep it as an investment” is often optimism wearing a spreadsheet.

Fixed and recurring costs

Mortgage payments (and product fees when you remortgage). Landlord insurance. Ground rent and service charges on leasehold. Licensing in selective or additional licensing areas. Safety kit and certificates: gas safety, EICR, smoke/CO alarms, EPC standards.

Letting agent fees (tenant-find or fully managed) are optional only if you want the 11pm calls yourself. Inventories, referencing and deposit protection are not optional corners to cut.

The costs that blow up “easy yield”

Voids between tenancies. Arrears that become possession claims. Boilers, roofs, damp and appliance failures. Furnishing churn. Section 21 / possession reform risk and legal fees. Council tax during empty periods.

Budget a maintenance percentage every year even when nothing is broken yet. Properties that look fine on day one still age on your watch.

Tax and paperwork (get advice)

Rental income is taxable; allowable expenses and finance cost rules change and depend on your situation. Capital gains tax can apply when you eventually sell. This is not tax advice — speak to an accountant before you decide based on a napkin calculation.

The decision point for many owners is simpler: after a realistic tax and cost stack, is the leftover worth the landlord role?

When costs argue for selling instead

If projected net yield is weak, you need capital, or compliance feels like a second job you hate, selling can be cheaper than “holding for growth”. Compare a cash or open-market sale against another year of costs using our sell or rent hub.

Prefer to let with professionals? Kerrigans can price a realistic Doncaster-area rental and management route so you are not guessing fees in the dark.

FAQ

What percentage of rent should I keep for repairs?

Many landlords earmark a percentage of rent for maintenance and renewals, then hold a cash buffer for emergencies. Older or poorly maintained stock needs more. Under-saving is how “profitable” lets turn into panic sales.

Are letting agent fees worth it?

If you value sleep, compliance and tenant sourcing, yes — especially as an accidental landlord. Self-managing only wins if you truly have the time and knowledge.