Buying Your First Buy-to-Let: A Checklist for New Landlords

Buying your first buy-to-let property is exciting and daunting in roughly equal measure. The route from "I'm thinking about it" to "the first month's rent landed in my account" has 30+ decision points; getting two or three wrong can cost you tens of thousands. This checklist covers everything you need to think about before, during, and after your purchase — including the realistic 2026 numbers, the regulatory layers a first-time landlord usually doesn't see coming, and the honest tradeoffs between BTL strategies. Read it once before you start property-hunting and again after you've found something you're considering.

Before you start property-hunting (the foundations)

Decide if BTL is the right vehicle for you

BTL works for some investor profiles and not others. Honest gut check:

• Are you happy to commit at least 3–5 years before you'd consider selling? Property is illiquid; in-and-out moves usually destroy capital.
• Can you afford to lose 6–12 months of rent in a single bad tenant + eviction scenario?
• Are you OK being on the hook for repairs at unsocial hours (or paying an agent / contractor 10–15% to absorb that)?
• Do you understand that Section 24 mortgage interest changes mean your taxable rental "profit" can be much higher than your bank balance shows?

If "no" to any of these, consider alternatives — REITs, pension contributions, or stocks-and-shares ISAs — before sinking 25% of your liquid net worth into a single illiquid property.

Decide ownership structure

Personal name vs limited company is the single biggest tax-impacting choice. Headlines:

• Personal name (sole / joint): Simpler, cheaper to set up, all rental profit added to your income tax band. Section 24 hits higher-rate taxpayers hard.
• Limited company: Mortgage interest fully deductible against Corporation Tax (19–25%). Higher mortgage rates than personal-name BTL (typically 0.5–1% premium). Profits can be retained inside the company tax-deferred. Extracting income via dividends adds dividend tax of 10.75%, 35.75% or 39.35% (2026–27 rates, above the £500 dividend allowance) depending on your income band.
• Joint with spouse: Married couples and civil partners are taxed 50:50 on jointly owned property by default. If you genuinely own it in unequal shares, a Form 17 declaration lets you be taxed on your actual shares. It cannot be used to choose an income split.

Get one hour with a property-tax accountant before you start. £200 spent here saves £20,000+ over a 10-year hold for many investors.

Get the financing in place

• Buy-to-let mortgage Agreement in Principle (AIP) — typically 25% deposit minimum (some lenders accept 20% with stricter rental coverage). Premium products at 25% LTV; rate scales with LTV.
• Rental coverage ratio: BTL lenders need rental income of 125% (basic-rate landlords) to 145% (higher-rate landlords / limited companies) of mortgage payment at a stress-tested rate (typically 5.5–6.5%, not the actual rate).
• Personal income evidence — 3 months' payslips + 3 months' bank statements minimum.
• Property type restrictions — many BTL lenders won't lend on flats above commercial premises, ex-local-authority flats above 4 storeys, studio flats below 30 m², or studio flats inside HMOs. Check before you offer.
• Use a specialist BTL mortgage broker — whole-of-market access typically gets a better rate than your high-street BTL lender.

Calculate your yield (don't skip this)

Use the free rental yield calculator to check the numbers stack up. Rough sanity targets for 2026:

• Gross yield: 6.5%+ for the deal to be worth pursuing in most regions
• Net yield (after operating costs but before tax): 4.5%+
• Cash-on-cash return on invested cash: 7–10% for the leverage to be worth the risk

If your gross yield is below 5%, the property is being valued for capital gains rather than income — fine if that's your strategy, but be honest about it.

Budget for the full cost stack

Use the stamp duty calculator for SDLT (remember the 5% additional property surcharge). On a £200,000 BTL purchase in England, SDLT at the higher rates is £11,500 (£1,500 at standard rates plus the £10,000 surcharge). Total transaction costs (SDLT + legal + survey + mortgage arrangement + insurance setup) typically run 7–10% of purchase price for first-time landlords. A £200k property realistically needs about £65k–£68k cash for the 25% deposit plus transaction costs.

Research the area properly

• Rental demand — Rightmove + Zoopla + OpenRent listings already in the postcode. How many active listings? How long have they been active? Healthy market = listings rotate within 2–3 weeks.
• Local rental yields — see the regional yield hotspots guide for current ranges
• Tenant demographics — students, professionals, families, social housing. Different demographics need different property types.
• Growth potential — local council strategic plans, transport links coming, employer expansions. Don't just buy yesterday's hotspot.
• Article 4 directives + selective licensing — if the postcode is in an Article 4 area, you can't convert a single dwelling to an HMO without planning permission. Check the council website.
• EPC requirement landscape — if you're planning to hold to 2030, properties currently rated D or below may need significant upgrade work. The government has confirmed that in-scope lettings must reach EPC C (on new EPC metrics) by 1 October 2030, with a £10,000 cost cap; the regulations are still to be made.

During the purchase

Get the right survey

• Mortgage valuation only — minimum required by the lender. Tells you almost nothing about the property's condition. Avoid as your sole survey.
• RICS Level 2 (Homebuyer Report) — £400–£700. Suitable for properties built post-1950 in standard condition.
• RICS Level 3 (Building Survey) — £700–£1,500. Required for pre-1900s properties, listed buildings, anything with visible structural concerns, or properties you intend to refurb.

Skip the survey to save £600 and you risk a £20,000 surprise. Always survey.

Compliance investigation pre-completion

• EPC current rating — check the government register at find-energy-certificate.gov.uk. Below E = you can't legally let; below C = budget for the 1 October 2030 PRS MEES standard or gather exemption evidence.
• Electrics — budget £150–£300 for an EICR if the existing one expires within 12 months OR the consumer unit is pre-2018 type. Add £600–£3,000 if the EICR returns C2 or C3 codes requiring remedial work.
• Gas — boiler age + last service date. Boilers 12+ years old often need £2,000–£3,500 replacement. New A-rated combi adds 3–6 EPC points alongside.
• Roof condition — flagged on the survey. Major roof work £4,000–£12,000 depending on size + complexity.
• Damp — survey will flag readings. Treat damp before letting; mould-related illness claims are a real legal exposure.
• Asbestos — pre-2000 properties may contain asbestos. Survey identifies; specialist removal £500–£3,000 per area depending on type.

Insurance before completion

Arrange landlord buildings insurance to take effect from the moment of completion (your solicitor needs the policy reference). Standard residential cover usually voids the moment you let. See the landlord insurance guide for what cover you actually need.

Solicitor + tenant ready before completion

• Use a property solicitor who has BTL experience — they know the searches and clauses that matter
• Have your tenancy agreement ready. In England, new private tenancies from 1 May 2026 are assured periodic tenancies, and you must give a written statement of terms that complies with the Renters’ Rights Act 2025. Wales uses occupation contracts and Scotland uses private residential tenancies.
• If buying with sitting tenants, request copies of all current tenancy agreements + certificates BEFORE exchange

Before your first tenant moves in

Mandatory pre-tenancy compliance

• Gas Safety Certificate — must be in place before the tenancy starts. Renewed every 12 months. Engineer must be Gas Safe registered.
• EICR — required for new tenancies in England since 1 July 2020 and for all tenancies since 1 April 2021. Inspect at least every 5 years (or sooner if the report says so) and give the tenant a copy.
• EPC — must be provided to prospective tenants before viewing. Valid 10 years.
• Smoke alarms — fitted on every storey containing living accommodation. Tested at start of every new tenancy. Mains-wired or 10-year battery preferred.
• Carbon monoxide alarms — required in any room used as living accommodation that has a fixed combustion appliance, such as a boiler, gas fire or wood burner (gas cookers are excluded). Working at the start of every new tenancy, and repaired or replaced once you are told one is faulty.
• Deposit protection — register the deposit with DPS, MyDeposits, or TDS within 30 days of receipt. Penalty for late or missed protection is 1×–3× the deposit, payable to the tenant.
• Prescribed Information — serve to tenants within 30 days of receiving the deposit. Must include scheme details, contact info, dispute process.
• Right to Rent checks — verify every adult tenant's right to rent (England only). Civil penalties are up to £10,000 per occupier for a first breach and £20,000 for a repeat breach.
• Written statement of terms — for new tenancies in England from 1 May 2026, give it before the tenancy is agreed (civil penalty up to £7,000). The government withdrew the How to Rent guide on 1 May 2026.
• Selective licensing — if the property is in a designated area, the licence must be in place before letting. Operating without a licence can mean a civil penalty of up to £40,000 (England, since 1 May 2026).
• HMO licensing — in England a mandatory licence is needed where 5 or more people from 2 or more households share facilities. Councils can also run additional licensing schemes that cover smaller HMOs. Any required licence must be in place before letting.

Operational setup

• Landlord bank records ready for manual or CSV reconciliation; automatic Open Banking remains provider-gated
• Inventory created with photos at check-in
• Tenant signed on the tenancy agreement
• First month's rent + deposit received
• Prescribed Information sent
• Keys handed over
• Welcome pack with utility supplier info, neighbour intro, bin day, parking rules

Ongoing management — the first 12 months

• Record rent payments as they arrive (manually or from a reviewed CSV import; Tendmere’s bank feeds are not live) and chase arrears within 48 hours of any miss
• Keep digital records of all expenses, with a photo of each receipt attached
• Maintain a property file with every certificate, inspection report, contractor invoice, tenant communication
• Set calendar reminders for certificate renewals (Gas Safety annually, EPC at year 9, EICR at year 4, deposit-protection records, Right to Rent re-checks for time-limited cases)
• Build a maintenance reserve — 1% of property value per year is the standard rule of thumb; 0.7% for newer properties, 1.5% for pre-1950 builds
• Register for MTD ITSA if your combined SE + property income exceeds £50,000 (April 2026), £30k (April 2027), or £20k (April 2028)
• Mid-tenancy inspection at month 6 — gives you visibility on how the property's being treated and surfaces issues early

Common first-time-landlord mistakes

• Buying without research because "London always goes up". Capital growth is unpredictable; income is the foundation. Buy on income.
• Assuming the rent will cover everything. Rent covers mortgage + operating costs + tax — there's typically £100–£300/month of net cash on a typical BTL after all of those. Building a portfolio takes time.
• Skipping the survey. Already covered. Always survey.
• Skipping insurance because the standard residential policy "transferred over". It didn't. The first claim will be denied.
• Believing a friend / sourcer / "investment club" who promises 12%+ yields with low risk. If the deal sounds too good, it is.
• Over-leveraging. A 90% LTV BTL with no cash reserve is one missed payment from forced sale. 70–75% LTV with 6 months' mortgage in reserve is the resilient configuration.
• Inadequate tenant referencing. Skip the £30 reference and the bad-tenant cost is £3,000–£10,000.
• Setting up DIY tenancy agreements from generic templates. Use NRLA / OpenRent / shelter-vetted templates, not Reddit downloads.
• Trying to do everything by spreadsheet. Scattered records make certificates, arrears and tax figures easy to miss. Every Tendmere plan is free right now, with no card needed.

The honest first-year reality

Most first-time landlords find year 1 harder than expected — the cash flow is tighter than the spreadsheet suggested, the time commitment is more than expected, and one of the smaller compliance items always catches them. By year 2 the rhythm settles and most landlords find it sustainable. By year 3, decisions about adding a second property become realistic.

Set up for success

The landlords who succeed long-term are the ones who treat property as a business from day one. That means careful records, appropriate insurance, compliance review, and dependable tools. Tendmere is free right now on every plan, takes no card payment and supports reviewed CSV exports. Build the property record step by step and attach source evidence before treating it as complete.

Related guides

• UK landlord compliance checklist (pillar)
• Landlord allowable expenses (pillar)
• Landlord insurance: what you need
• Section 24 mortgage interest relief explained
• Free rental yield calculator
• Free stamp duty calculator