Solutions / Lending lines / Buy-to-Let

Buy-to-let, without the manual overhead.

For portfolio landlords, limited companies, HMOs, and MUFBs.

Buy-to-let is where portfolio complexity meets stress testing, ICR calculations, and corporate structures. Mast handles the data model, the policy, and the workflow so your underwriters can focus on judgement, not spreadsheets.

Where teams get stuck

The friction buy-to-let lending inherits.

  • Portfolios spread across spreadsheets and PDFs

  • ICR and stress tests that vary by product and tenure

  • Limited-company structures with multiple directors and shareholders

  • HMO and MUFB cases treated as bespoke every time

Capabilities

What Mast brings to buy-to-let.

Portfolio data model

Capture, validate, and stress test entire portfolios in one place, with automatic aggregation across properties.

ICR and stress testing

Configurable ICR, stress rate, and tax-band logic exposed as versioned rules, not hard-coded assumptions.

Limited-company workflows

Company structures, directors, and shareholders modelled natively, with KYC and KYB flowing into the same case.

HMO and MUFB support

Property-type specific fields, valuations, and policy without forcing bespoke workflows for every case.

Outcomes

What good looks like.

Fewer manual touches

Portfolio and company cases handled through the same journey as vanilla BTL.

Faster restructuring

Update ICR or stress logic in minutes when market conditions change.

Broker confidence

A BTL portal that handles the cases brokers actually want to place.

Journeys

Buy-to-Let journeys on Mast.

Production journeys you can turn on today, configured to your policy and criteria.

  • Buy-to-Let
  • Limited Company Buy-to-Let
  • Portfolio Buy-to-Let
  • Expat Buy-to-Let
Explore

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See how Mast maps to every team and every lending line.

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See Mast for Buy-to-Let

Walk through your product with the team and see how Mast maps to it.

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