uk.co.realyield/realyield

What it mainly works on, as our AI model read its tool descriptions: nothing outside itself: it only answers questions.

None of its 11 tools are described as changing anything.

• list_realyield_calculatorsreads or searches

  “Lists every UK property calculator on realyield.co.uk with a one-line description and URL.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  Takes no inputs.

• search_realyieldreads or searches

  “Searches realyield.co.uk for calculators, articles, glossary terms and downloadable templates about UK buy-to-let, landlord tax and property regulation.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs, 1 required

  • querystringrequired“Words to search for, for example 'section 24' or 'HMO licensing'.”
  • typestring“Restrict results to one content type.”
  • limitinteger“Maximum number of results.”
• define_property_termreads or searches

  “Looks up a UK property investment or landlord tax term in the RealYield glossary, for example 'ICR', 'Section 24', 'gross yield' or 'void period', and returns the definition with a link to the full e…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  1 input, 1 required

  • termstringrequired“The term or abbreviation to define.”
• analyse_buy_to_let_dealcalculates or converts

  “Full UK buy-to-let analysis for a purchase price and monthly rent: gross and true net yield after service charge, ground rent, agent fees, repairs, voids and mortgage interest, Section 24 tax, monthl…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  16 inputs, 2 required

  • purchase_pricenumberrequired“Purchase price in GBP.”
  • monthly_rentnumberrequired“Expected monthly rent in GBP.”
  • mortgage_balancenumber“Mortgage amount borrowed in GBP.”
  • mortgage_ratenumber“Annual mortgage interest rate as a percentage, for example 4.5.”
  • service_charge_monthlynumber“Monthly service charge in GBP (leasehold flats).”
  • ground_rent_annualnumber“Annual ground rent in GBP.”
  • utilities_monthlynumber“Monthly utilities paid by the landlord in GBP.”
  • agent_fee_percentagenumber“Letting agent fee as a percentage of rent.”
  • agent_fee_vat_applicableboolean“Whether VAT at 20% is added to the agent fee.”
  • repairs_percentagenumber“Repairs and maintenance allowance as a percentage of rent.”
  • void_months_per_yearnumber“Expected empty months per year.”
  • ownership_typestring“Held personally (Section 24 applies) or through a limited company.”
  • tax_bandstring“The landlord's income tax band: basic (20%), higher (40%) or additional (45%).”
  • corporation_tax_ratenumber“Corporation tax rate percentage, used for company ownership.”
  • current_market_valuenumber“Current market value in GBP, if yields should be based on value rather than purchase price.”
  • valuation_basisstring“Base yields on the purchase price or the current market value.”
• calculate_stamp_dutyon 3 other serverscalculates or converts

  “Calculates Stamp Duty Land Tax for a property purchase in England or Northern Ireland at current rates, with the band-by-band breakdown, the effective rate, a comparison across first-time buyer, home…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs, 1 required

  • propertyPricenumberrequired“Purchase price in GBP.”
  • buyerTypestring“standard for a home mover, first_time for a first-time buyer, additional for a buy-to-let or second home.”
  • depositPercentnumber“Deposit as a percentage of price, for the total cash needed figure.”
• calculate_section_24_taxcalculates or converts

  “Works out a UK landlord's income tax on rental profit under Section 24, where mortgage interest is not deductible and is replaced by a 20% tax credit.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  4 inputs, 1 required

  • annualRentnumberrequired“Gross annual rental income in GBP.”
  • annualOperatingCostsnumber“Annual allowable costs excluding mortgage interest, in GBP.”
  • annualMortgageInterestnumber“Annual mortgage interest in GBP.”
  • taxBandstring“The landlord's income tax band: basic (20%), higher (40%) or additional (45%).”
• compare_personal_vs_company_ownershipcalculates or converts

  “Compares the annual tax on a UK rental property held personally (Section 24 rules) against holding it in a limited company (corporation tax, then dividend tax on profit extracted).”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 1 required

  • annualRentnumberrequired“Gross annual rental income in GBP.”
  • annualOperatingCostsnumber“Annual allowable costs excluding mortgage interest, in GBP.”
  • annualMortgageInterestnumber“Annual mortgage interest in GBP.”
  • personalTaxBandstring“The landlord's income tax band: basic (20%), higher (40%) or additional (45%).”
  • dividendAmountnumber“Dividends taken out of the company per year in GBP.”
• calculate_btl_mortgagecalculates or converts

  “Calculates a UK buy-to-let mortgage: loan amount, loan-to-value, monthly and annual payment (interest-only or repayment), total interest, the interest coverage ratio lenders test against rent, and st…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  8 inputs, 1 required

  • propertyValuenumberrequired“Property value or purchase price in GBP.”
  • depositAmountnumber“Deposit in GBP.”
  • interestRatenumber“Annual interest rate percentage.”
  • mortgageTerminteger“Term in years.”
  • mortgageTypestring“Repayment method.”
  • productFeenumber“Lender product or arrangement fee in GBP.”
  • feeAddedToLoanboolean“Whether the product fee is added to the loan.”
  • monthlyRentnumber“Expected monthly rent in GBP, for the interest coverage ratio.”
• calculate_capital_gains_taxon 2 other serverscalculates or converts

  “Estimates UK capital gains tax on selling a rental property, shares or another asset: gain after allowable costs, private residence relief where it applied, the annual exempt amount, tax at basic and…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  13 inputs, 2 required

  • purchasePricenumberrequired“Original purchase price in GBP.”
  • salePricenumberrequired“Sale price in GBP.”
  • purchaseCostsnumber“Legal, survey and other buying costs in GBP.”
  • improvementCostsnumber“Capital improvements in GBP (not repairs).”
  • sellingCostsnumber“Agent and legal selling costs in GBP.”
  • sdltPaidnumber“Stamp duty paid on purchase in GBP.”
  • assetTypestring“What is being sold.”
  • ownershipTypestring“Owned by one person or jointly with a spouse or civil partner.”
  • annualIncomenumber“The seller's gross annual income in GBP, which sets the CGT rate.”
  • otherGainsThisYearnumber“Other capital gains already made this tax year in GBP.”
  • isMainResidenceboolean“Whether the property was ever the seller's main home.”
  • monthsAsMainResidencenumber“Months lived in as main home, for partial private residence relief.”
  • totalMonthsOwnednumber“Total months owned, for partial private residence relief.”
• lookup_area_rental_yieldsreads or searches

  “Looks up average rent, average price and gross rental yield for local authority areas in England and Wales, from ONS rents and HM Land Registry prices updated monthly.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs

  • areastring“Local authority or town name, for example 'Manchester' or 'Newcastle upon Tyne'.”
  • regionstring“Optional English region or 'Wales' to filter the ranking, for example 'North West'.”
  • limitinteger“How many areas to return when ranking.”
• check_dealon 5 other serversreads or searches

  “Checks a specific buy-to-let property in England or Wales from its postcode, asking price, type and bedrooms, using live public data: sold prices nearby and a price guide based on them, rent (the are…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

  16 inputs, 4 required

  • postcodestringrequired“Full UK postcode of the property, for example M14 5RF.”
  • asking_pricenumberrequired“Asking price in GBP.”
  • property_typestringrequired“Type of property.”
  • bedroomsintegerrequired“Number of bedrooms, 1 to 6.”
  • tenurestring“Freehold or leasehold.”
  • epc_ratingstring“EPC rating, if known.”
  • monthly_rentnumber“Expected monthly rent in GBP.”
  • service_charge_monthlynumber“Monthly service charge in GBP (leasehold flats).”
  • ground_rent_annualnumber“Annual ground rent in GBP.”
  • deposit_pctnumber“Deposit as a percentage of the price.”
  • mortgage_ratenumber“Annual mortgage rate as a percentage.”
  • agent_fee_pctnumber“Letting agent fee as a percentage of rent.”
  • repairs_pctnumber“Repairs allowance as a percentage of rent.”
  • void_monthsnumber“Expected empty months per year.”
  • ownership_typestring“Held personally (Section 24 applies) or through a limited company.”
  • tax_bandstring“The landlord's income tax band: basic (20%), higher (40%) or additional (45%).”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.