Property management software development for letting agents

• Offer to move-in

  In England, a holding deposit is capped at one week's rent and held for a standard 15 days, and right to rent checks cover every adult before the tenancy starts. In Scotland, written tenancy terms are due by the start day.

• Rent and client money

  Each rent receipt is matched to a tenancy before fees come off and landlords are paid. In Scotland, the Code requires dedicated client accounts reconciled at least monthly. For landlords abroad, the Non-Resident Landlord Scheme means deducting basic-rate tax unless HMRC approves gross payment.

• Repairs and works orders

  Each report is triaged, approved against the landlord's limit, sent to a contractor and chased to invoice. In Scotland, the Code expects written repair procedures with target timescales and 48 hours' notice of access for a private residential tenancy. In England, Awaab's Law timescales for private renting are out to consultation until 18 December 2026.

• Certificates and expiry dates

  Gas checks are due every 12 months across Great Britain, copied to tenants within 28 days or before move-in. Electrical reports are due at least every five years in England, Wales and Scotland; Scotland adds PAT testing. From 15 December 2026, region by region, England's new rental property database asks for them too.

• Reapit

  An estate and letting agency CRM with a documented API, Foundations. Apps are reviewed before listing in its AppMarket: about five business days if private, up to 60 if public.

• Street and Arthur Online

  Street, a CRM for lettings, property management and client accounting, has a free Open API with webhooks. Arthur Online, property management software, lets account holders create OAuth applications for its documented API.

• Alto, Jupix and Expert Agent

  Agency CRMs. Alto shares API documentation with integration partners through its Partner Hub. We found no public API for Jupix. Expert Agent exports listings as XML over FTP. Without a public API, we work from exports.

• PayProp and Fixflo

  PayProp automates rent collection, reconciliation and payments for agents; its API and webhooks are available on request. Fixflo handles repairs, maintenance and compliance from first report to sign-off, and publishes API documentation.

• Compliance register

  A record per property for gas, electrical with remedial work, EPC and alarms, plus PAT and landlord registration in Scotland, with expiry alerts, proof of service and an export for England's database.

• Tenancy progression by nation

  A move-in workflow that follows the property's nation: right to rent records in England, tenancy terms in Scotland, and deposit protection through the scheme APIs, counting 30 days in England and Wales or 30 working days in Scotland.

• Rent increase scheduler

  Works out when each tenancy can next rise under its nation's rules, including England's 52-week gap after a pre-May 2026 rent review increase, and pre-fills the prescribed notice for a person to check and serve.

• Client money and arrears

  Suggested matches between bank lines and tenancies for a person to confirm; arrears tracked against the possession thresholds (three months for England's mandatory ground, three consecutive months in Scotland); Non-Resident Landlord deductions; statements and monthly reconciliation.

• Renters' Rights Act 2025 (England)

  From 1 May 2026, section 21 is abolished in England and tenancies are assured periodic. Rent can rise once a year, on a section 13 notice with two months' notice. Agents must publish an asking rent, accept no higher offers, and not refuse applicants for children or benefits. Bidding and discrimination fines go up to £7,000 each; serious or repeat breaches of other duties, up to £40,000.

• Letting agent registration and Code of Practice (Scotland)

  Under the Housing (Scotland) Act 2014, anyone doing letting agency work in Scotland must be on the Scottish Letting Agent Register and follow the statutory Code of Practice, covering inspections, repairs, complaints and client money. Operating unregistered is a criminal offence.

• Private Housing (Tenancies) (Scotland) Act 2016

  A private residential tenancy's rent can rise once in 12 months, on at least three months' notice using the prescribed form; any other way leaves it unchanged. The tenant has 21 days to apply to Rent Service Scotland, and 30 days from 1 April 2027 under the Housing (Scotland) Act 2025.

• Tenancy deposit protection

  In England, the Housing Act 2004 requires deposits to be protected, and prescribed information served, within 30 days of receipt; in Wales, the Renting Homes (Wales) Act 2016 sets the same 30 days for occupation contracts. In Scotland, the Tenancy Deposit Schemes (Scotland) Regulations 2011 allow 30 working days from the tenancy start; the Tribunal can award up to three times the deposit.

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  StoreBay

  StoreBay is self-storage management software we designed, built and run, not lettings software. It handles problems close to a letting agent's: recurring billing, Direct Debit through GoCardless, late-payment emails on the operator's schedule, agreements signed online, and a customer portal for payments and invoices.

  How we built StoreBay

• Bespoke software development
• Business automation and integrations
• AI automation

Other industries: Self-storage, Accountants.

Sources

Every rule, date and figure on this page comes from the sources below, checked on 31 October 2026. Rules change: check anything that matters with the source or your adviser.