Landlord Software Migration Guide: Switch Safely in 2026

Switching landlord software feels daunting. You have years of financial records, tenant histories, compliance documentation, and carefully categorised transactions locked inside your current platform. The fear of losing data, breaking your MTD digital links, or creating gaps in your compliance history is enough to keep most landlords stuck on software they have long outgrown.

But staying on the wrong platform has real costs: wasted time on manual workarounds, missed features that could save you hours each month, higher fees than necessary, and the growing risk that your current provider cannot keep up with regulatory changes like Making Tax Digital. The longer you wait, the more painful the eventual switch becomes.

This guide walks you through every step of migrating between landlord software platforms, with specific instructions for the six most popular UK tools. Whether you are moving from a legacy desktop application, a basic spreadsheet-replacement, or a full property management suite, you will find a clear, tested process that protects your data, maintains MTD compliance, and minimises disruption to your day-to-day landlord operations.

Why Landlords Switch Software

Most landlords do not switch software on a whim. The decision typically builds over months of frustration until a specific trigger forces action. Understanding why landlords switch helps you evaluate whether your own reasons justify the effort involved.

Based on surveys of UK landlords who switched platforms in 2025 and early 2026, the most common reasons are:

If you are unsure what to switch to, our UK landlord software industry report for 2026 provides a comprehensive comparison of every major platform, including pricing, features, and MTD compatibility.

Whatever your reason, the important thing is not to let the fear of migration keep you on a platform that is costing you time and money. A well-planned migration takes 2-4 weeks and the benefits compound every month afterwards.

Migration Readiness Checklist

Before you export a single file or create a new account, work through this pre-migration checklist. Skipping these steps is the number one cause of migration problems. Print this list, tick each item off as you complete it, and do not proceed to the export stage until every item is addressed.

• Confirm your current contract terms: check notice periods, cancellation fees, and data retention policies
• Verify your current software's data export options (CSV, PDF, API) and test them now, not on migration day
• Back up all data: download every export format available, including PDF reports, CSV transaction files, and receipt images
• Document your current chart of accounts and expense categories (you will need to map these to the new platform)
• List all bank accounts connected via Open Banking and note which transactions are imported vs manual
• Export a complete tenant contact list with lease dates, deposit details, and communication history
• Download all stored documents: tenancy agreements, gas safety certificates, EPC certificates, deposit protection certificates
• Note any recurring transactions, scheduled reminders, or automated rules you have set up
• Check your MTD submission history and download confirmation receipts for all quarterly updates submitted
• Confirm your new platform supports all features you rely on (test with a free trial before committing)
• Inform your accountant of the planned switch and agree a handover date
• Set a migration date that avoids quarterly submission deadlines (allow at least 2 weeks buffer)

The checklist above covers the essentials. Depending on your portfolio complexity, you may also want to document any custom workflows, saved report templates, or integrations with third-party tools like letting agent portals or insurance providers.

Data Export Compatibility by Platform

Not all platforms make it equally easy to leave. This table summarises the export capabilities of the six most popular UK landlord software platforms, so you know what to expect before you begin.

Platforms with API access (Arthur Online, Xero, QuickBooks) generally offer the smoothest migrations because data can be transferred programmatically rather than through manual CSV imports. Platforms without API access require more manual work but are still fully migratable with the right process.

A key detail to check before starting: does your current platform export all historical data or only the current tax year? Some platforms limit CSV exports to recent data, which means you may need to generate separate exports for each historical period you want to preserve.

Step-by-Step Migration Process

Follow these eight steps in order. Each step builds on the previous one, and skipping ahead creates the risk of data gaps or compliance issues. Allow 2-4 weeks for the full process, depending on portfolio size and data complexity.

Step 1: Audit Your Current Data

Before exporting anything, take stock of what you actually have. Log into your current platform and document:

• Properties: Count of properties and units, with addresses and any property-specific settings (mortgage details, purchase prices, EPC ratings)
• Tenants: Active tenants, past tenants, guarantors, contractors, and other contacts
• Financial records: Date range of transaction history, number of transactions, and any opening balances
• Documents: Stored tenancy agreements, certificates, receipts, and correspondence
• Compliance records: Gas safety certificate dates, EPC ratings, deposit protection references, licence numbers
• MTD history: Quarterly submissions made, confirmation references, and any outstanding periods
• Recurring items: Standing orders, direct debits, and scheduled transactions set up in the platform

Create a simple spreadsheet tracking each data type, the volume of records, and whether you have successfully exported it. This becomes your migration checklist and ensures nothing gets left behind.

This audit typically takes 1-2 hours for a small portfolio and half a day for larger ones. It is time well spent because it gives you a clear picture of the migration scope and helps you estimate how long the process will take.

Step 2: Export Everything

Export every piece of data your current platform allows. Even if you do not think you will need it immediately, having a complete backup protects you against any issues during migration.

1. Financial transactions: Export as CSV with all available columns (date, description, amount, category, property, tax treatment)
2. Property details: Export property records including addresses, purchase dates, mortgage details, and any custom fields
3. Tenant and contact records: Export all contacts with names, emails, phone numbers, addresses, and relationship types
4. Lease information: Export lease records with start dates, end dates, rent amounts, payment frequencies, and deposit details
5. PDF reports: Generate and download P&L statements, rent rolls, and balance sheets for every completed tax year
6. Receipt images: Download all stored receipt images and document scans (many platforms allow bulk download)
7. Bank reconciliation data: Export your bank statement imports and reconciliation status if available

Open each exported CSV file and verify it contains actual data, not just headers. Check that date formats are consistent and that amounts include the correct number of decimal places. Corrupted or incomplete exports are easier to fix now than after you have cancelled your old account.

Step 3: Set Up Your New Platform

Create your account on the new platform and configure it before importing any data. This means:

• Setting up your account profile with correct business details and tax reference numbers
• Configuring your chart of accounts or expense categories to match your existing structure
• Connecting bank accounts via Open Banking (do not import historical transactions yet)
• Setting up any team members or accountant access with appropriate permission levels
• Familiarising yourself with the import tools and reviewing any import guides or templates
• Configuring notification preferences for rent reminders, compliance alerts, and MTD deadlines

If the new platform offers a migration wizard or dedicated import tool, review its requirements before exporting from your old platform. You may need to format your CSV files in a specific way, and it is easier to do this during export than to reformat afterwards.

Spend at least an hour exploring the new platform before importing data. Understanding the interface, navigation, and key features will help you spot import errors and configure settings correctly.

Step 4: Import Core Data

Import your data in the correct order. The sequence matters because later imports depend on earlier ones:

1. Properties and units first: These are the foundation that everything else links to. Verify addresses, unit numbers, and property types after import.
2. Tenants and contacts second: Tenants need to be associated with properties. Check that contact details, emergency contacts, and guarantor information are complete.
3. Leases third: Leases link tenants to properties with specific terms. Verify rent amounts, payment frequencies, start and end dates, and deposit amounts.
4. Financial transactions fourth: Transactions reference properties, tenants, and categories. This is typically the largest import and requires the most verification.
5. Documents and receipts last: Attach these to the relevant records after they exist in the system. Match receipts to their corresponding expense records.

After each import step, verify the record count matches your audit from Step 1. If you exported 847 transactions from your old platform, you should see 847 transactions in your new one. Any discrepancy needs investigating before you proceed.

Step 5: Verify Financial Records

This is the most critical verification step. Generate the same reports on both platforms and compare them line by line:

• Profit and Loss: Compare P&L for the current tax year on both platforms. Totals should match exactly.
• Rent Roll: Verify that all active leases show the correct rent amounts, payment frequencies, and balances.
• Expense Categories: Check that expenses have been mapped to the correct categories. Category mismatches can affect your tax return.
• Opening Balances: If you have carried forward balances (tenant deposits, prepaid rent, outstanding invoices), verify these are correct.
• Bank Reconciliation: Confirm that your bank balance in the new platform matches your actual bank balance.
• Tax Year Summaries: If you imported historical data, compare annual summaries for each completed tax year.

Common discrepancies to watch for include rounding differences on percentage calculations, date boundary issues where a transaction falls in different quarters on different platforms, and category mapping errors where an expense type on the old platform does not have an exact equivalent on the new one.

Step 6: Transfer MTD Registration

If you are already registered for Making Tax Digital and have been submitting quarterly updates, you need to transfer your MTD connection to your new software. This process involves:

1. Authorise the new software: Log into your HMRC Government Gateway account and grant MTD authorisation to your new software provider
2. Revoke old authorisation: Remove your old software provider's access (optional but recommended for security)
3. Verify submission history: Confirm your new platform can see your previous quarterly submissions via the HMRC API
4. Test submission: If your new platform offers a test or sandbox mode, run a test submission to confirm the MTD connection works

You do not need to re-register for MTD itself. Your MTD registration stays with your HMRC account regardless of which software you use. You are simply changing which software is authorised to submit on your behalf.

The authorisation process typically takes 10-15 minutes and can be done entirely online through your Government Gateway account. Your new software provider should have step-by-step instructions specific to their platform.

For full details on MTD requirements and submission processes, see our complete guide to Making Tax Digital for landlords.

Step 7: Run Platforms in Parallel

For at least one full month (ideally one full quarter), run both platforms simultaneously. This means recording all new transactions in both systems so you can verify that the new platform produces identical results.

During the parallel period:

• Enter all new rent receipts, expenses, and transactions in both platforms
• Compare bank reconciliation status weekly
• Generate monthly summary reports on both platforms and compare totals
• Note any differences in how the two platforms categorise or handle specific transaction types
• Use this period to build confidence with the new platform's interface and workflows
• Test any automated features (bank feed categorisation, rent reminders, compliance alerts) on the new platform

The parallel period is your safety net. If something goes wrong with the new platform, your old platform still has complete, up-to-date records. Do not cancel your old subscription until the parallel period is complete and you are satisfied with the new platform.

Yes, running two platforms simultaneously is extra work. But this short-term duplication of effort is far less painful than discovering a problem three months after you have cancelled your old account and lost access to the data.

Step 8: Cut Over and Close Old Account

Once you are confident the new platform is working correctly, it is time to cut over:

1. Final export from old platform: Take one last complete export of all data for your permanent archive
2. Stop entering data in the old platform: From this point, the new platform is your single source of truth
3. Inform your accountant: Confirm the new platform, share any access credentials they need, and agree the handover date
4. Update any integrations: If you use bank feeds, payment processors, or third-party tools, ensure they are connected to the new platform only
5. Downgrade or cancel the old account: Check if a free or archive tier is available so you retain read-only access to historical data
6. Update your records: Note the migration date in your tax records for reference

After cutting over, keep your exported archive files stored securely for at least 6 years (HMRC can request records going back this far). Cloud storage or an external drive both work, but ensure you have at least two copies in different locations.

Maintaining MTD Compliance During Migration

The biggest compliance risk during migration is breaking your MTD digital links or missing a quarterly submission deadline. Here is how to maintain full compliance throughout the process.

Quarterly Submission Timing

Never migrate in the middle of a quarterly period if you can avoid it. The ideal timing is:

• Best: Switch between tax years (late March / early April). You close one tax year on the old platform and start the new year fresh on the new one.
• Good: Switch at a quarter boundary. Submit your quarterly update on the old platform, then start the new quarter on the new platform.
• Risky: Switch mid-quarter. You will need to split the quarter's data across two platforms, or import mid-quarter data into the new platform and submit from there.

If you must switch mid-quarter, ensure you import all transactions from the current quarter into the new platform before submitting your quarterly update. The submission must cover the complete quarter, not just the portion recorded in the new platform.

HMRC Notification

You do not need to formally notify HMRC that you are changing software. However, you do need to:

• Authorise the new software to submit on your behalf via your HMRC Government Gateway account
• Ensure the new software can retrieve your submission history so it knows which quarters have already been filed
• Verify that the new software's MTD agent ID is correctly linked to your HMRC records
• Confirm that any agent authorisations (if your accountant submits on your behalf) are updated for the new platform

Preserving Digital Links

MTD requires unbroken digital links from your source records to your HMRC submission. When you migrate, the digital link chain starts fresh on the new platform. This is acceptable to HMRC provided:

• Your old platform retains your historical submissions and the digital links that supported them
• Your new platform creates new digital links for all data going forward
• You do not manually re-type data between platforms (use CSV import or API transfer instead, which counts as a digital link)
• You keep your old platform's export files as evidence of the historical digital link chain

Common Migration Mistakes

These five mistakes account for the vast majority of migration problems. Knowing about them in advance means you can avoid them entirely.

Mistake 1: Losing Receipt Attachments

Most landlords remember to export their transaction data but forget about the receipt images and document scans attached to individual expenses. These attachments are your proof of expenditure if HMRC queries your tax return. Without them, you may be unable to substantiate expense claims, potentially resulting in disallowed deductions and higher tax bills.

Mistake 2: Breaking Digital Links

Manually copying and pasting transaction data from one platform to another breaks the MTD digital link requirement. Even if the numbers are identical, HMRC requires that data flows digitally between systems. This is one of the most common compliance failures during migration.

Mistake 3: Switching Mid-Quarter

Migrating in the middle of a quarterly period creates the risk of incomplete submissions. If half your quarter's transactions are on Platform A and the other half on Platform B, generating an accurate quarterly update becomes complicated. You risk either double-counting transactions or missing some entirely.

Mistake 4: Forgetting Recurring Transactions

Your old platform may have recurring transactions set up for regular expenses like mortgage payments, insurance premiums, or management fees. These do not transfer automatically during migration and are easy to overlook. You might not notice the gap until months later when your P&L is missing regular expenses.

Mistake 5: Not Informing Your Accountant

Your accountant may have read-only access to your old platform, custom report templates, or workflows built around your existing software. Switching without notice can disrupt their year-end processes and create unnecessary friction. Worse, they may continue accessing the old platform for data that is no longer being updated.

Platform-Specific Migration Guides

Each source platform has its own quirks when it comes to data export. Here are specific tips for migrating from each of the major UK landlord software platforms.

Migrating from Landlord Vision

Landlord Vision offers solid CSV exports for transactions, properties, and tenants. The main challenge is that Landlord Vision uses its own category names, which may not map directly to your new platform's categories.

• Export path: Go to Reports > Export Data and select each data type individually
• Category mapping: Export the chart of accounts separately and create a mapping document before importing. Landlord Vision's expense categories are broadly HMRC-aligned but may use different labels.
• Mortgage data: Landlord Vision tracks mortgages in detail; export mortgage statements separately as these often do not import cleanly into property-focused tools
• Receipt images: Receipts must be downloaded individually through the expense view; there is no bulk download option, so budget extra time for this step
• MTD history: Download your MTD submission confirmations from the tax section before closing your account
• Estimated time: 1-2 days for a typical portfolio of 5-10 properties

Migrating from Landlord Studio

Landlord Studio provides basic CSV exports for transactions and properties, but tenant data export is limited. Plan for some manual data entry for tenant records.

• Export path: Go to Settings > Data Export to download transaction CSVs
• Tenant data: Tenant export includes names and basic contact details only; lease terms, deposit information, and guarantor details may need to be re-entered manually
• Multi-currency: If you have properties in different currencies, export each currency separately to avoid conversion confusion
• Photos and documents: Property photos and document attachments must be downloaded individually
• Tip: Landlord Studio's free plan remains available after downgrading, so you can retain read-only access to historical data without ongoing cost
• Estimated time: 1-2 days for most portfolios, plus additional time for manual tenant data re-entry

Migrating from Arthur Online

Arthur Online is the easiest platform to migrate from thanks to its comprehensive REST API and full export suite. This is particularly useful for larger portfolios where manual CSV processing would be impractical.

• Export path: Use the Reports section for CSV exports, or the API for programmatic access to all data
• API migration: If your new platform supports API import, Arthur's API documentation is well-maintained and covers all entity types including properties, tenants, leases, transactions, and maintenance records
• Maintenance records: Arthur stores detailed maintenance job histories; export these separately as they contain valuable property condition records
• Tenant portal data: If you use Arthur's tenant portal, notify tenants of the switch and provide new login details for your replacement portal
• Contractor records: Arthur maintains detailed contractor databases; export these before migration as they are often overlooked
• Estimated time: 2-3 days for API-based migration, 3-5 days for CSV-based migration of large portfolios

Migrating from Xero

Xero is a general accounting platform rather than landlord-specific software. The migration is straightforward for financial data but you will need to restructure property-specific information that Xero stores differently from dedicated landlord tools.

• Export path: Settings > Export Accounting Data provides a complete data archive including chart of accounts, transactions, contacts, and bank statements
• Tracking categories: If you used Xero tracking categories for properties, export these mappings separately to maintain property-level reporting in your new platform
• Bank rules: Xero bank rules do not export; document your rules manually so you can recreate them (or equivalent automation) in the new platform
• API transfer: Latch offers direct Xero API import that pulls transactions, contacts, and chart of accounts automatically, saving significant manual work
• Fixed assets: If you have tracked property values or equipment as fixed assets in Xero, export the fixed asset register separately
• Estimated time: 1-2 days with API import, 3-4 days with manual CSV processing

Migrating from QuickBooks

QuickBooks offers comprehensive export options, but the exported data often needs reformatting before it can be imported into landlord-specific software. The column headers and date formats may differ from what your new platform expects.

• Export path: Go to Settings > Export Data for CSV exports, or use Reports > Custom Reports for specific data sets
• Class tracking: If you used QuickBooks classes for properties, export the class list and transaction detail by class to preserve property-level data
• Payee names: QuickBooks payee names may not match your tenant names exactly; review the contact export and clean up before importing
• VAT records: If you are VAT registered, export your VAT return history separately before migrating
• API transfer: Latch supports QuickBooks API import for a streamlined migration of financial data and contacts
• Estimated time: 2-3 days with API import, 4-5 days with manual CSV reformatting and import

Migrating from Hammock

Hammock is a relatively simple platform, which makes migration straightforward but means you will have less historical data to work with. The limited export options mean you should supplement Hammock exports with data from your bank and other sources.

• Export path: Go to the Transactions section and use the Export button for CSV downloads
• Limited data: Hammock's exports are transaction-focused; property and tenant data may need to be set up manually in the new platform from your original records
• Bank feed history: Hammock's bank feed history has limited export options; download your bank statements directly from your bank as a backup
• MTD submissions: If you have used Hammock for MTD submissions, download all submission confirmations before closing your account
• Timing: Hammock accounts can be closed immediately after export; there is no extended data retention period, so ensure your exports are complete before proceeding
• Estimated time: 1 day for export, plus 1-2 days for manual property and tenant setup on the new platform

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