Renters' Rights Act 2025, Phase 1 commencement
Transition readiness pack
England

Commercial Mortgage for Landlords

Commercial Mortgage UK 2026 — Rates, LTV, ICR, SIPP Commercial Property, Lenders and Comparison With BTL

Commercial mortgage UK 2026: finances commercial property (offices; retail; industrial; semi-commercial); rates Base Rate + 2-5% (higher than BTL Base Rate + 0.5-2%); LTV typically 65-70% (lower than BTL 75-85%); ICR assessed at pay rate (not stressed rate) — minimum 125%; personal guarantee typically required. SIPP commercial property: SIPP CAN invest in commercial property (NOT residential); rental income and capital growth tax-free within SIPP; SIPP borrows up to 50% of net fund value. Lenders: Barclays; NatWest; Shawbrook; Aldermore; Hampshire Trust Bank; Together; OakNorth; Allica.

11 min readUpdated 7 June 2026Last reviewed: 17 May 2026mortgagecommercial-propertyfinancesipp

Commercial mortgage rates, LTV, ICR and loan terms

  • Rates: typically Base Rate + 2-5% per annum — significantly higher than BTL (Base Rate + 0.5-2%); margin reflects property type; tenant covenant strength; LTV; borrower creditworthiness
  • LTV: typically 65-70% of RICS Red Book open market value; up to 75% for institutional-grade tenants on long leases
  • ICR: minimum 125% of annual rental income to annual interest — assessed at the actual pay rate (not stressed rate as in BTL)
  • Loan terms: 5-25 years; amortising or interest-only with balloon repayment at term end
  • Personal guarantee: typically required from directors/shareholders; unlimited or capped PG
  • Valuation: RICS Red Book yield-based valuation required (ERV divided by equivalent yield)

SIPP commercial property — tax benefits and how it works

A SIPP CAN invest in commercial property (offices; retail; industrial; semi-commercial) — but NOT residential property for personal benefit. Holding commercial property in a SIPP: rental income is received free from income tax within the SIPP; capital growth is free from CGT on disposal; the SIPP can borrow up to 50% of its net asset value to part-fund the acquisition on commercial mortgage terms; contributions receive income tax relief at the contributor's marginal rate. A landlord's own business can pay market rent to the SIPP (tax-deductible for the business; tax-free within the SIPP) — one of the most tax-efficient property investment structures available to self-employed landlords and company directors.

Commercial mortgage lender landscape

  • Mainstream banks (facilities £500k+): Barclays Commercial; NatWest Commercial; HSBC Commercial; Lloyds Commercial Banking
  • Specialist/challenger banks (£150k-£5m): Shawbrook; Aldermore; Hampshire Trust Bank; Together Money; United Trust Bank; OakNorth; Allica Bank; Handelsbanken
  • SIPP commercial mortgage lenders: Santander; NatWest; Handelsbanken; Shawbrook; Together; Aldermore; Hampshire Trust Bank
  • FCA unregulated for limited company borrowers; personal guarantee standard; relationship-based underwriting for larger facilities

Frequently asked questions

What is the difference between a commercial mortgage and a BTL mortgage?+

A commercial mortgage finances commercial property (offices; retail; industrial; warehouses; semi-commercial); a BTL mortgage finances residential property let to residential tenants. Key differences: commercial rates are higher (Base Rate + 2-5% vs + 0.5-2% for BTL); commercial LTV is lower (65-70% vs 75-85%); commercial ICR assessed at pay rate (not stressed); commercial mortgages are FCA unregulated for limited company borrowers; personal guarantees are typically required for commercial mortgages.

Can a SIPP invest in commercial property with a mortgage?+

Yes — a SIPP CAN invest in commercial property (offices; retail; industrial; semi-commercial) but CANNOT invest in residential property for the personal benefit of the pension member. A SIPP can borrow up to 50% of its net asset value on a commercial mortgage. Rental income received by the SIPP is tax-free; capital growth is free from CGT within the SIPP; a landlord's own business can pay market rent to the SIPP (tax-deductible for the business; tax-free within the SIPP).

Do commercial mortgages require a personal guarantee?+

Yes — commercial mortgages to limited companies typically require a personal guarantee (PG) from the directors/shareholders. An unlimited PG puts the guarantor's entire personal net worth at risk. A capped PG (limited to e.g., 25% of the loan) may be negotiated. SIPP commercial mortgages are taken by the SIPP as borrower — personal guarantee position differs and should be reviewed with a specialist SIPP commercial mortgage broker.

Templates recommended in this guide

ComplianceLS-E-020

Landlord Annual Compliance Checklist

Annual walk-through of every compliance touchpoint: gas, electrical, EPC, smoke/CO, Right-to-Rent, deposit, licensing, database registration.

£19
Live now

Found a gap or disagree with something?

Reply to any LetSafe email or write to Richard@letsafeuk.co.uk. We rewrite guides when we get something wrong, the sooner we hear, the sooner we fix it.

Related landlord guides

Hand-picked by topic overlap with this guide.

Pension Property Investment 2026
Pension Buy-to-Let UK 2026 — SSAS Commercial Property, SIPP (Residential PROHIBITED), Tax-Free Rental Income and Purchase and Leaseback
Pension buy-to-let guide 2026: SSAS (Small Self-Administered Scheme) and SIPP (Self-Invested Personal Pension) can both hold commercial property with rental income and capital gains entirely tax-free within the pension wrapper. SSAS: for company directors and senior employees; can buy commercial property; borrow up to 50% of scheme assets; purchase and leaseback to sponsoring employer at market rent (rent is deductible for the company; tax-free income for SSAS); connected-party transactions: must be arm's length and at market rent. SIPP: can hold commercial property; CANNOT hold residential property — residential property is 'taxable property' (Finance Act 2004 s.174 and Schedule 29A): 40% unauthorised payment charge + 15% scheme sanction charge — combined can exceed 55% of property value. Residential definition is broad: includes holiday cottages; B&Bs; serviced apartments; student accommodation; mixed-use properties with material residential element. Lifetime Allowance (LTA) ABOLISHED from 6 April 2024 (Finance Act 2024) — no maximum pension pot. Annual allowance: £60,000 (2024/25 and 2025/26); MPAA: £10,000 after drawdown.
Tax & Finance
SIPP and SSAS Commercial Property for Landlords UK
How landlords can hold commercial property inside a SIPP or SSAS pension: permissible assets, residential property prohibition, sale-and-leaseback, SSAS employer loans, and the tax advantages of pension property ownership.
Property Tax
Rollover Relief UK — Commercial Property and Business Asset Replacement
Business Asset Roll-Over Relief under TCGA 1992 ss.152-158 — qualifying assets, the trading requirement, why buy-to-let does not qualify, the reinvestment window, partial reinvestment, and interaction with BADR and hold-over relief.
Commercial Property Finance
Commercial Mortgage Default UK — LPA Receivers, Power of Sale, and Borrower Options
What happens when a commercial mortgage defaults — LPA receiver appointment under LPA 1925 ss.101 and 109, the lender's power of sale, cross-default clauses, personal guarantees, and borrower options including standstill and refinancing.
Commercial Property Tax
Business Rates Empty Property UK — Empty Rate Relief, Mitigation Strategies, and Valuation Appeals
Covers the 3-month (standard) and 6-month (industrial) empty rate relief periods, statutory exemptions (listed buildings; charities; SBRR threshold; prohibited occupation; insolvency), legitimate mitigation strategies including the 6-week occupation reset, the risk of Makro-style stripping schemes, and the Check Challenge Appeal (CCA) process for reducing rateable value.
Commercial Property Tax
Capital Allowances Commercial Property UK — Plant and Machinery, AIA, Fixtures Election, and SBA
Covers qualifying plant and machinery in commercial buildings (integral features at 6%; other P&M at 18%), the Annual Investment Allowance (£1m; permanent from April 2023), the s.198 fixtures election pooling requirement (2-year deadline on purchase), the 3% Structures and Buildings Allowance, and the abolition of FHL capital allowances from 6 April 2025.