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bythenumbers

Investing

Rental yield calculator

Rent as a share of the purchase price, before and after costs.

  • What it means

    Yield is the rent you collect each year as a percentage of what the property cost. Gross is before costs; net is after them.

  • Why it matters

    It shows whether the rent is doing real work against the purchase price, not just looking large as a monthly figure.

  • When to use it

    Use it when comparing buy-to-let deals, or when checking if an asking price still makes sense against local rents.

  • How to read the result

    Higher net yield is stronger on paper. Check voids and costs carefully. Tax on rental income is not included here.

Your figures

More assumptions

Interest only for net yield. Leave at 0 for an all-cash purchase.

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Methodology

Rules checked against published sources as of 2025-04-01.

  • Gross yield is annual rent divided by purchase price.
  • Net yield deducts voids and the operating costs you enter, including mortgage interest.

Pair the numbers with area intelligence for a postcode.

FAQs

Is net yield after tax?

No. Tax on rental income is not modelled. Speak to a tax adviser for personal tax outcomes.