Why tenancy reform and tougher lender checks are reshaping refinancing and protection choices for the rental sector and contractors

The Renters’ Rights Act and a flurry of regulatory and lender responses are changing how landlords, contractors and brokers plan refinancing and protection. From 1 May 2026 landlords must adapt to periodic tenancies, the end of Section 21 and tighter rules on notices and rent increases, and those changes are driving fresh compliance work across the market.

For landlords and contractors who rely on buy-to-let income or irregular earnings, the practical upshot is that refinancing and protection decisions are now less straightforward. Lenders and advisers are layering new checks and product tiers on top of existing rules, and understanding what has changed will help you make pragmatic, low-risk choices.

What the Renters’ Rights Act means for refinancing

The Renters’ Rights Act takes effect on 1 May 2026 and makes periodic tenancies the default, removes Section 21 possession notices for most standard cases, and alters notice and rent-increase mechanics. These legal shifts change tenancy documentation and the timing of rental cash flows,items that lenders review closely when a landlord remortgages or refines their portfolio.

Because the reform is phased, with Phase 1 starting on 1 May 2026 and later phases introducing a PRS database and landlord ombudsman, refinancing decisions need to account for staggered regulatory risk. Lenders will expect that paperwork, tenant information and procedures are updated to reflect each phase of the reforms.

For brokers and underwriting teams, that means remortgage packs now include the new tenant information sheets and updated tenancy agreements. The added documentation increases due diligence time and, in some cases, will influence valuation assumptions and perceived portfolio stability.

Why lenders’ due diligence has tightened on remortgages and portfolio refinances

Tenant-protection changes and government checklists have already pushed lenders to beef up compliance checks on buy-to-let refinances. Lenders must now verify updated tenancy processes and confirm that landlords can supply the new tenant-facing documents, which creates more touchpoints in a refinance transaction.

Responsible-lending rules remain central. The FCA’s framework requires robust affordability verification, which anchors lender checks for both conventional landlords and those with irregular incomes such as contractors or the self-employed. This means lenders will still expect verifiable income evidence and stronger documentation.

Market feedback shows brokers reacting to tighter rental-income assumptions; more conservative rent stress testing can reduce maximum loan sizes and push lenders to lower LTVs or seek additional security. In short, more paperwork and stricter rent assumptions make remortgaging a more document-led exercise.

Refinancing is becoming the engine of the buy-to-let market

The buy-to-let market is increasingly refinance-led. Industry projections show gross BTL lending rising from about £39bn in 2025 to £44bn in 2026 and £48bn in 2027, reflecting active remortgaging and portfolio reshaping rather than simple one-off purchases. This puts refinancing at the core of landlords’ financing strategies.

To keep remortgaging viable, some lenders have eased affordability stress rates. For example, HSBC cut buy-to-let stress rates in January 2026 to support remortgages and additional lending. These moves are designed to help landlords manage costs and stabilise cash flow while the sector adapts to regulatory change.

At the same time, lenders are segmenting product ranges for clarity. Hampshire Trust Bank’s April 2026 “Flow” range is an example: lower-rate products for clearly defined, lower-complexity residential BTL cases. That segmentation helps match pricing and process to complexity, and encourages more efficient refinancing for straightforward portfolios.

What higher yields and rising possession pressure mean for protection choices

Recent lending data show average gross BTL yields increased to around 7.15% in Q3 2025, but mortgage possessions also rose,900 possessions, up 28.6% year on year. Higher yields can support stronger income assumptions, but rising possessions underline the need for contingency planning and insurance cover.

Professional landlords are typically more leveraged and more active in refinancing: Foundation’s February 2026 analysis reports an average of about 6.5 BTL loans across two lenders and an average borrowing of roughly £714,000. Complex structures and multiple loans make adequate protection critical,both for personal balance-sheet security and for lenders assessing affordability.

The BSA has noted that rental cover often needs to be around 125% to offer a reasonable buffer. That affects decisions about interest-only versus repayment structures, income protection, and landlord insurance when remortgaging,products and structures that need to be assessed alongside the refinance itself.

How checks affect contractors and the self-employed

Contractors and self-employed borrowers face particular scrutiny because of irregular incomes. The FCA’s work in 2026 suggests these borrowers may get a broader choice over time, but affordability checks remain central and firms must verify income thoroughly as part of their assessments.

Recent FCA guidance and CP26/12 consultation on loan-to-income limits show the regulatory environment is evolving; lenders must keep capital and affordability models aligned with new rules. For contractors, that means providing comprehensive evidence,tax calculations, contracts, portfolios of work, or accountant-certified accounts,when seeking refinance or new lending.

Brokers report that tougher rental-income and affordability assumptions can reduce maximum loans for borrowers who rely on contractor income or complex portfolio cash flows. Planning a,collecting verified income documentation and exploring specialist lenders,can improve refinance outcomes and widen protection choices.

Practical steps for landlords, contractors and brokers

Update tenancy paperwork now: make sure tenancy agreements, periodic tenancy templates and tenant information sheets reflect the Renters’ Rights Act changes. Lenders will expect these documents on remortgages and portfolio refinances, and early compliance reduces friction in underwriting.

Work with specialist advisers and brokers to map refinancing options and protection products. The market is moving toward specialist lending and portfolio management, and advisers can help identify lenders with clearer product tiers, competitive stress rates, or experience with limited-company and multi-loan structures.

For contractors and self-employed borrowers, prioritise verified income evidence and contingency planning. Consider appropriate rental-cover levels, income protection or loss-of-rent policies, and be realistic about rental-income assumptions when modelling refinance scenarios to avoid unnecessary surprises.

Tenancy reform and heightened lender checks are reshaping refinancing and protection choices across the private rental sector and for contractors. The combined effect of statutory changes, lender segmentation and regulatory adjustments means refinancing is now a more strategic, document-driven activity that must be coordinated with protection planning.

The good news is the market is responding with clearer product tiers, some easing of stress rates, and specialist lenders willing to engage with complex cases. By preparing tenancy documentation, verifying income early, and seeking professional advice, landlords and contractors can manage the transition and keep refinancing and protection options open.