7 Mistakes You’re Making with the New Tenancy Laws (and How to Fix Them Before You Get Fined)

Happy May, Fenland landlords! The sun is finally peeking through the clouds in Wisbech, the gardens in Long Sutton are looking lush, and… oh wait, the Renters’ Rights Act 2026 has officially landed. Since the 1st of May, the legal landscape for letting property has shifted more than the silt in the Nene.

If you’re feeling a bit like a bird whose nest has been rearranged while you were out catching worms, don’t panic. At NestFlex, we’ve been tracking these changes like hawks. We’re homeowners, investors, and landlords ourselves, so we know exactly how much of a headache new legislation can be.

The reality? The “good old days” of handshake deals and old-school evictions are gone. The new laws come with some sharp talons: specifically, fines that can reach a eye-watering £40,000.

To keep your investment soaring and your bank account intact, here are the seven most common mistakes we see landlords making right now, and how you can fix them before the council comes knocking.


1. Clinging to the “Ghost” of Section 21

The biggest shock to the system in the Renters’ Rights Act is the total abolition of Section 21 “no-fault” evictions. If you’re still thinking you can just give a tenant two months’ notice because you’ve decided to move your cousin into the property on a whim, stop right there.

The Mistake: Trying to serve a Section 21 notice for a tenancy that started or moved to a periodic state after May 1st, 2026.
The Risk: It’s legally invalid. Not only will the court laugh you out of the room, but you could be flagged for harassment or non-compliance.
The Fix: You now need a “just cause” to reclaim your nest. Whether it’s selling the property, moving back in yourself, or serious rent arrears, you must use the updated Section 8 grounds. We recommend auditing your reasons for wanting possession early and ensuring your paperwork is 100% compliant with the new mandatory grounds.

House keys on a coffee table in a bright rental home, representing compliance with new UK tenancy laws and Section 8.

2. Saying “No” to Fluffy Without a Fight

We get it. You’ve just spent a fortune on housepricesinlincolnshire levels of renovation, and the last thing you want is a Great Dane skidding across your new LVT flooring. However, the new law gives tenants a legal right to request a pet.

The Mistake: Having a blanket “No Pets” policy in your adverts or tenancy agreements.
The Risk: Tenants can challenge an “unreasonable” refusal. If you can’t prove why a pet is unsuitable for the space, you’re looking at a dispute you’ll likely lose.
The Fix: Change your mindset from “No” to “Yes, but…” The new law allows you to require the tenant to take out pet insurance to cover potential damage. At NestFlex, we help our landlords navigate these dogwalks conversations by vetting the pets as thoroughly as the tenants.

3. Encouraging a “Rent Bidding War”

Spalding and Holbeach are popular spots, and sometimes you’ll have ten people desperate for one semi-detached home. In the past, some landlords (and agents) would let tenants bid against each other to see who would pay the highest monthly rent.

The Mistake: Asking for or accepting offers above the advertised rental price.
The Risk: This is now strictly prohibited. If you’re caught encouraging “bidding wars,” you’re flying straight into a fine.
The Fix: Be honest and transparent with your pricing from the start. Research the propertymarket carefully and set a fair, competitive price. If multiple people want it at that price, pick the best tenant based on their references and suitability, not the size of their wallet.

4. Demanding Massive Upfront Rent Payments

In a high-demand market like Cambridgeshire, it’s been common for landlords to ask for 6 or 12 months of rent upfront, especially for tenants with poor credit or those moving from abroad.

The Mistake: Asking for more than the legal cap on upfront rent.
The Risk: This is seen as a way to bypass the ban on high deposits. Overcharging here can lead to heavy financial penalties and a mandatory refund of the excess to the tenant.
The Fix: Trust the screening process and make sure you have the right processes in place.  Remember, you must not take any rent until the tenancy agreement has been signed and executed by all parties.

NestFlex expert discussing tenant vetting and Renters' Rights Act compliance with clients in a modern, sunlit office.

5. Using “Ancient” Lease Templates

If your tenancy agreement is a PDF you downloaded in 2019 and have been “tweaking” ever since, you are in the danger zone. The May 2026 laws have changed the very structure of tenancies (moving everyone toward a single system of periodic tenancies).

The Mistake: Reusing old contracts that still mention fixed terms, outdated notice periods, or prohibited fees.
The Risk: Many of your clauses will now be legally unenforceable. Even worse, if you haven’t included the new mandatory disclosures required by the Renters’ Rights Act, you could be fined up to £40,000 for repeated non-compliance.
The Fix: Trash the templates. You need a 2026-compliant agreement that reflects the new lincolnshirepropertymarket realities. At NestFlex, we provide our landlords with up-to-date documentation that protects your interests while staying on the right side of the law.

6. Ignoring the “Decent Homes Standard”

The law has caught up with the idea that every “nest” should be warm, dry, and safe. The Decent Homes Standard now applies to the private rented sector, and the ombudsman is watching.

The Mistake: Ignoring a bit of damp in a Long Sutton terrace or delaying a boiler repair because “it’s not that bad.”
The Risk: Tenants can now report sub-standard housing to a new National Landlord Ombudsman. If they find you’re failing to maintain the property to the required standard, they can order rent stirps or hefty compensation payments.
The Fix: Be proactive. We recommend a “preventative maintenance” flight path. Don’t wait for things to break. Regular inspections (with proper notice!) and quick fixes save you thousands in the long run and keep you out of the Ombudsman’s bad books.

7. Skipping the New Digital Database Registration when it arrives

Surprise! There’s going to be a new “Property Portal” in town. All landlords will be required to register themselves and their properties on a national digital database.

The Mistake: Thinking you can fly under the radar and not register your rental in Wisbech.
The Risk: If you aren’t on the database when it launches, you can’t legally use the Section 8 possession grounds. You’re essentially stuck with a tenant you can’t evict, and local authorities can issue civil penalties for non-registration.
The Fix: Get prepared and organised so you are ready for when the portal opens for your area. It will likely require you to upload your EPC, Gas Safety Certificate, and EICR. If that sounds like a lot of admin, that’s exactly what we handle for our clients. We make sure your digital “paperwork” is as neat as a well-kept garden.


Why NestFlex is Your Secret Weapon

We know what you’re thinking: “I just wanted to rent out my house, not become a legal scholar!”

That’s where we come in. NestFlex isn’t your average, stiff-collared estate agent in Wisbech. We’re a team of property-obsessed experts who believe that landlording should be rewarding, not a constant source of anxiety.

We offer a transparent, no-nonsense approach to property management across the Fenland area. When you partner with us, you aren’t just getting someone to collect the rent; you’re getting a shield against those £40,000 fines.

How we keep you safe:

  • Total Compliance: Our contracts are updated in real-time as laws change. No “fossil” templates here.
  • Expert Vetting: We find the best tenants for your property in Gedney Drove End, Holbeach, and beyond.
  • Local Knowledge: We know the difference between a property in Spalding and one in Cambridgeshire, and we tailor our advice accordingly.
  • Direct & Honest: No hidden costs, no jargon: just honest pricing and straight talk.

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Ready to Take Flight?

The new tenancy laws don’t have to be the end of your property investment journey. They just mean you need to be a bit smarter about how you manage your nest. Whether you’re a first-time landlord or an experienced investor with a portfolio across the East of England, we’re here to help you navigate the winds of change.

Don’t wait for a letter from the council to find out you’ve made a mistake. Let’s get your properties compliant, your tenants happy, and your mind at ease.

Ready to secure your investment? Contact our team today for a no-obligation chat about how we can protect your property under the new Renters’ Rights Act.

Safe flying! 🕊️🏡