RentalBux – HMRC-Recognised MTD Software for Portfolio Landlords
If you’re a landlord earning rental income from multiple properties, RentalBux makes Making Tax Digital compliance effortless.
HMRC recognised for MTD, RentalBux helps you maintain digital records, track rental income and expenses for each property in your rental property portfolio, and submit your quarterly updates and year-end final declaration with ease.
Why Landlords Rely On Us
Trusted by thousands of portfolio landlords across the UK
RentalBux finally gave me peace of mind.
Even after trying several tools, I was struggling with my portfolio of three rentals. MTD just added to that struggle. But then, I was introduced and all my worries disappeared. MTD submissions in minutes, track each property separately, allocate profit sharing. Wow!
Built for landlords, used by landlords.
As a landlord managing 12 units across two ownership structures and some self-employment income, I needed something that handled everything. RentalBux was the only software that did that.
Time saved.
Switching to RentalBux was one of the best decisions I made. Especially the joint-ownership module. Our family property had three owners with different shares, and RentalBux handled it quite efficiently.
Check if you need to join Making Tax Digital
Answer four quick and easy questions and see whether and when you need to start complying with MTD requirements. A few seconds to determine your eligibility and get guarantees on how you need to proceed.
Added bonus, no data leaves your device. Everything runs on your browser.
Making Tax Digital Checker
Find out when (and if) you need to join Making Tax Digital for Income Tax Self Assessment
Are you digitally excluded?
Digital exclusion means you cannot use digital tools due to age, disability, or lack of reliable internet access.
Do you have a National Insurance number?
A National Insurance number is required to join MTD for Income Tax.
Why do you need to send a Self Assessment tax return?
Select the main reason for submitting a Self Assessment return.
What is your expected qualifying income?
Enter your total gross income before expenses from self-employment or property.
Your result will appear here
What RentalBux Does for Landlords with Multiple Property Income
Everything portfolio landlords need for MTD compliance:
Digital Records
Quarterly Update Filing
Final Declaration
Why Rentalbux for Portfolio Landlords?
Built for solicitors. Manage property income, expenses, and MTD tax filing all in one place.
Designed by Accountants Who Understand Landlords with Multiple Properties
RentalBux is built with input from accountants and property professionals who work with landlords managing multiple properties. Whether you have two rentals or twenty, the system keeps your income, expenses, and property-level records clean, organised, and HMRC-compliant.
HMRC-Recognised Software for Making Tax Digital (MTD)
RentalBux is HMRC-recognised software for MTD for Income Tax. Every submission, quarterly update, and final declaration meets the latest digital reporting rules — giving you complete compliance confidence.
Landlord-Specific Chart of Accounts for Multi-Property Portfolios
Forget generic bookkeeping categories. RentalBux uses a landlord-focused chart of accounts covering all rental income and allowable expenses across multiple properties including rent, repairs, mortgage interest, maintenance, insurance, service charges, utilities, letting agent fees, and more.
Simple Enough for Non-Accountants
Clear dashboards, step-by-step workflows, and no accounting jargon. Even if you’ve never used bookkeeping software, you can manage your UK rental income confidently without worrying about complex tax rules or quarterly MTD submissions.
Simple, Affordable Pricing!
Choose the perfect plan for your business needs. All plans include our core features with flexible scaling options.
- Property Units
- Workspace
- Storage
- Bank Feed
- Insights & Reports
- Document Management
- Create Invoices & Bills
- Support
- Property Management
- MTD Compliant
- Reconcile Bank Transactions
- Income & Expense Tracking
- Custom Chart of Accounts
- Bookkeeping
Free
Starter
Growth
- Property Units
- Workspace
- Storage
- Bank Feed
- Insights & Reports
- Document Management
- Support
- MTD Compliant
- Property Management
- Create Invoices & Bills
- Reconcile Bank Transactions
- Income & Expense Tracking
- Custom Chart of Accounts
- Bookkeeping
Starter
Growth
Premium
- Property Units
- Workspace
- Storage
- Bank Feed
- Insights & Reports
- Document Management
- Create Invoices & Bills
- Support
- Property Management
- MTD Compliant
- Reconcile Bank Transactions
- Income & Expense Tracking
- Custom Chart of Accounts
- Bookkeeping
Free
Starter
Growth
Premium
- Property Units
- Workspace
- Storage
- Bank Feed
- Insights & Reports
- Document Management
- Priority Support
- Property Management
- Create Invoices & Bills
- Reconcile Bank Transactions
- Income & Expense Tracking
- Custom Chart of Accounts
- Bookkeeping
Starter
Growth
Premium
- Property Units
- Workspace
- Storage
- Bank Feed
- Insights & Reports
- Document Management
- Priority Support
- Property Management
- Create Invoices & Bills
- Reconcile Bank Transactions
- Income & Expense Tracking
- Custom Chart of Accounts
- Bookkeeping
Starter
Growth
Premium
Feel the Difference RentalBux Makes
Real challenges jointly owned property landlords face, and how RentalBux solves them
| Challenges Jointly Owned Property Landlords face | How RentalBux Solves It |
|---|---|
| Tracking shared rental income and expenses across jointly owned properties is complex and prone to errors. | RentalBux records each co-owner's share of income and expenses and ensures MTD-compliant quarterly submissions. |
| Maintaining digital records for repairs, mortgage interest, insurance, and service charges is time-consuming. | Upload invoices or snap receipts; RentalBux auto-categorises joint property expenses for accurate HMRC reporting. |
| Coordinating quarterly updates and year-end declarations among co-owners can be confusing. | Guided workflows and reminders make digital tax reporting for joint landlords simple and accurate. |
| Managing multiple jointly owned properties is complex. | RentalBux supports property-level ledgers and aggregates totals for MTD threshold calculations and submissions. |
Frequently Asked Questions
Find answers to common questions about our services and solutions.

Yes. Landlords who own multiple rental properties must combine the gross income from all properties to calculate MTD threshold of £50,000. Even if individual properties earn modest amounts, your total rental income counts toward the threshold. If your combined rental income exceeds the threshold, you must maintain digital records and submit quarterly updates under MTD.
No. All rental income and expenses are reported together in a single quarterly update, although records should be kept separately for each property. This ensures HMRC can verify each property’s income and allowable expenses, while simplifying compliance.
You must keep digital records of:
Rent received for each property
Allowable property expenses (repairs, maintenance, insurance, mortgage interest, utilities)
Dates, amounts, and supporting receipts
Property-specific notes
These records should be organised and easily accessible for quarterly updates and year-end final declarations.
HMRC requires digital record-keeping and MTD-compatible software for all landlords meeting the income threshold. Software should:
Track each property separately
Categorise income and expenses according to HMRC rules
Prepare quarterly updates and year-end declarations
Using HMRC-recognised software like Rentalbux ensures compliance, reduces errors, and simplifies record-keeping for multiple properties.
Each property’s expenses must be recorded individually, including:
Mortgage interest and insurance
Repairs and maintenance
Letting agent fees and utilities : Expenses are reported per property but aggregated for the quarterly update. Keeping detailed property-level records ensures accurate tax reporting and helps maximise allowable deductions..
HMRC uses a points-based penalty system for late or inaccurate submissions. Each missed quarterly update, or final declaration earns points, and exceeding thresholds leads to financial penalties. Landlords with multiple properties have more transactions to track, increasing the risk of errors. Maintaining organised digital records for each property reduces the likelihood of penalties and ensures full MTD compliance.