RentalBux vs. ApariPro
Which MTD Software Is Better for UK Landlords and Sole Traders?
Overall Winner: RentalBux
RentalBux is the more complete MTD software for landlords and sole traders. It combines full Making Tax Digital compliance across UK property income, foreign property income, and self-employment income with comprehensive property management, automated bookkeeping, AI-driven expense categorisation, joint ownership profit-splitting, and a free plan for single-property landlords until March 2028. ApariPro is a genuinely impressive AI-powered Self Assessment and MTD compliance platform with exceptional income stream breadth — including foreign income, expat taxation, capital gains, CIS, partnerships, and more — and a strong accountant-facing workflow with pre-filled SA100 forms and bulk client management. However, it is focused on tax filing and digital record keeping rather than property management, and does not offer the landlord-specific tools — portfolio management, tenant tracking, HMO support, or automatic profit-splitting — that purpose-built landlord software provides.
At-a-Glance MTD Software Comparison
Key differences between RentalBux and ApariPro across MTD compliance, property management, bookkeeping, pricing, and landlord-specific features.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Software Type | Property/Landlord Platform | AI-Powered Self Assessment & MTD Filing |
| Target Users | Landlords, Sole Traders, Letting Agents | Individuals, Accountants & Tax Agents, Financial Partners |
| Income Sources Supported | Sole Trader + UK Property + Foreign Property | 15+ income streams incl. employment, property, self-employment, foreign income, investments, capital gains, CIS, partnerships, expats, and more |
| Free MTD Software Plan | Free until March 2028 (1 property) | 30-day free trial |
| MTD Quarterly Updates to HMRC | Yes | Yes |
| Final Declaration | Yes | Yes |
| Bank Reconciliation | Yes | |
| Automated Bank Feeds | Yes | |
| Invoice Creation | Yes | No |
| Receipt Capture (OCR) | Yes | |
| Expense Auto-Categorisation | Coming soon | |
| Property Portfolio Management | Yes | No |
| Tenant Management | Yes | No |
| Joint Ownership & Profit Sharing | Yes | |
| Payroll | No | |
| HMO Unit-Level Tracking | Yes | |
| HMRC SA105 Box Pre-Mapping | Yes | |
| Spreadsheet Import/Export | Yes | Yes |
| Platform | Web, iOS, Android | |
| GDPR Compliant | Yes | Yes |
What Is RentalBux? What Is ApariPro?
What Is RentalBux?
All-in-One MTD Software for Landlords and Sole Traders
RentalBux is an all-in-one property management, accounting, and Making Tax Digital compliance platform built specifically for UK landlords, letting agents, and self-employed individuals. Designed with direct input from accountants who specialise in property and sole trader tax, RentalBux covers everything from tenancy management and rent collection to full bookkeeping with a pre-configured chart of accounts tailored to the property sector.
RentalBux is fully HMRC-recognised for Making Tax Digital for Income Tax across all three qualifying income categories: UK property income, foreign property income, and self-employment. This makes it one of the only landlord-specific MTD software platforms that can handle a landlord who also runs a sole trader business, all from a single subscription.
A major differentiator is RentalBux's pricing model: single-property landlords can use the platform completely free until March 2028, making it one of the most affordable HMRC-approved MTD software options for landlords entering the MTD regime.
What Is ApariPro?
MTD compliant Self-Assessment software powered by AI
ApariPro is an AI-powered Self Assessment and Making Tax Digital compliance platform developed by Apari Digital, a company registered in England and Wales (Company No. 11943201). It describes itself as the UK's first AI-powered Self Assessment solution and, notably, was the first vendor to successfully file an MTD for Income Tax return to HMRC, demonstrating an early-mover and technically advanced position in the MTD space.
ApariPro's defining proposition is breadth and intelligence: it supports over 15 income streams in a single SA100 filing — including self-employment, UK property, foreign income, employment, capital gains, investments, CIS, partnerships, expat taxation, trust income, and more — and uses proprietary AI to automatically analyse uploaded documents (rental statements, dividend vouchers, tax packs, bank statements) and pre-fill SA100 tax return forms. This dramatically reduces manual data entry for both individuals and accountants.
Strengths
- Free MTD software for single-property landlords until March 2028
- Handles sole trader + UK property + foreign property income in one platform
- Joint ownership with automatic profit-sharing split by ownership percentage
- Pre-built chart of accounts tailored for landlords and sole traders
- AI-powered expense auto-categorisation and OCR receipt capture
- Agent filing on behalf of landlords — ideal for accountants and letting agents
- Supports HMO properties with auto-created units
Strengths
- First vendor to file an MTD for Income Tax return to HMRC
- Supports 15+ income streams including employment, CGT, investments, expat, CIS, partnerships
- AI-powered document analysis pre-fills SA100 from uploaded documents
- Bank feeds connecting 30+ banks and credit cards
- Joint property ownership supported
- Real-time tax position estimates for individuals
- Strong accountant-facing tools: agent dashboard, bulk AI emails, white label
- Partnership with Wolters Kluwer (CCH iFirm integration, 2026)
- Phone support available (Mon–Fri, 9am–5pm)
- 30-day free trial for individuals (no credit card required)
Limitations
- Newer to market compared to established platforms
- No yield or LTV investment analysis tools
- No MTD for VAT support yet
- Some advanced reporting features still in development
- Limited third-party app integrations
- No offline capability
- No tax liability forecasting feature currently
Limitations
- No landlord-specific property management, tenant tracking, or HMO support
- Individuals plan at £144/year (incl. VAT) — no permanent free tier
- Accountant plan pricing is on request — limited pricing transparency
- No standalone bookkeeping platform — focused on tax filing, not full accounting
- No invoice creation, formal P&L, balance sheet, or trial balance
- No property-level reporting or portfolio management
- No automatic profit-splitting by ownership percentage (joint ownership supported but not auto-calculated per available feature descriptions)
- No MTD for VAT support listed
- No confirmed dedicated native iOS/Android app in app stores
- No HMO, compliance document alerts, or arrears tracking
Making Tax Digital Compliance
How RentalBux Handles MTD Compliance
RentalBux supports all three MTD qualifying income categories: sole trader income, UK property income, and foreign property income. This makes it suitable for landlords who also earn self-employment income, eliminating the need for separate software. Most accounts are pre-mapped to HMRC Self-Assessment boxes. RentalBux also supports agent filing, allowing accountants or letting agents to submit MTD returns on behalf of their landlord clients.
How ApariPro Handles MTD for Landlords and Sole Traders
ApariPro is HMRC-recognised and was the first vendor to successfully file an MTD for Income Tax return to HMRC. The platform supports quarterly MTD updates and the final declaration for UK property income and self-employment income, with foreign income also included among its supported income streams. Quarterly updates can be submitted by the individual directly through ApariPro, or — for accountant-managed clients — reviewed and submitted via the agent portal. For clients where quarterly updates are submitted by the individual and the final declaration is handled by the accountant, ApariPro's Wolters Kluwer CCH iFirm integration provides a seamless handoff between the client-facing app and the firm's compliance system.
| Feature | RentalBux | ApariPro |
|---|---|---|
| HMRC Recognised (MTD ITSA) | Yes | Yes |
| MTD Quarterly Updates | Yes | Yes |
| Final Declaration | Yes | Yes |
| Digital Record Keeping | Yes | Yes |
| Digital Links Compliant | Yes | |
| Sole Trader Income | Yes | Yes |
| UK Property Income | Yes | Yes |
| Foreign Property Income | Yes | Yes |
| Multiple Income Streams | Yes | |
| Agent Filing on Behalf | Yes | Yes |
Winner: Tie on MTD core compliance; ApariPro on income stream breadth; RentalBux on landlord-specific workflow — Both platforms are fully HMRC-recognised with quarterly updates, final declaration, and agent filing. ApariPro's support for 15+ income streams including employment, CGT, and expat taxation gives it a decisive advantage for individuals with complex personal tax affairs beyond property. RentalBux's pre-mapped landlord accounts, native property-focused workflow, and free plan give it the edge for landlords whose primary compliance need is property and self-employment income.
Property Management
RentalBux: Property Management
RentalBux provides comprehensive property portfolio management with tenant management, rent tracking, property expense allocation, and support for multiple properties. A standout feature is its joint ownership and profit-sharing capability: landlords can define ownership percentages once, and RentalBux automatically splits rental income and expenses. RentalBux also supports HMO properties, automatically creating individual units.
ApariPro: Tax Return Focus, Limited Property Management
ApariPro's core design is around income tax preparation and filing, not property portfolio management. It supports landlords through its UK property income tracking — rental earnings, expenses, and taxes are tracked within the platform, and joint property ownership is listed as a supported scenario. However, ApariPro does not offer a structured property portfolio management module, tenant management records, rent roll tracking, HMO unit management, compliance document alerts (gas safety, EPC), mortgage tracking, or arrears management. For landlords whose primary need is tax compliance and SA100 filing with AI assistance, this is an acceptable trade-off. For landlords who want a single system to manage both property operations and MTD compliance, ApariPro's narrower scope is a limitation.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Property Portfolio Management | Yes | No |
| Tenant Management | Yes | No |
| Rent Tracking | Yes | No |
| Property Expense Allocation | Yes | Yes |
| Multiple Property Support | Yes | Yes |
| HMO Property Support | Yes (auto-creates units) | No |
| Joint Ownership/Profit Sharing | Yes (auto-split by %) | Yes |
| Maintenance Tracking | No | |
| Tenant Screening | No | |
| Compliance Document Alerts | Yes | No |
| Arrears Tracking | No | No |
Winner: RentalBux — ApariPro has no landlord property management features beyond income and expense tracking. RentalBux wins outright on property portfolio management, tenant management, HMO support, compliance alerts, and automatic joint ownership profit-splitting.
Bookkeeping, Accounting & Digital Record Keeping
RentalBux: Structured Accounting
RentalBux includes a pre-built chart of accounts specifically designed for landlords and sole traders, covering rental income, mortgage interest, insurance, property repairs, professional services, utilities, and tenant deposits. All accounts are pre-mapped to HMRC Self-Assessment boxes. The platform supports cash basis accounting, bank reconciliation, and journal entries.
ApariPro: Digital Record Keeping and Tax Return Preparation
ApariPro approaches digital record keeping from a tax return preparation angle rather than a full accounting perspective. The platform allows individuals to track income and expenses by income stream (with separate mini-accounts per stream), snap and store receipts, connect bank accounts and credit cards (30+ banks supported) for automatic transaction import and categorisation, and upload tax documents for AI-powered analysis. SA100 forms are pre-filled automatically as data is provided — either through bank feeds, document uploads, or manual input. This creates the digital records required for MTD compliance and produces a ready-to-file tax return, but does not generate formal accounting reports such as a full profit & loss statement, balance sheet, or trial balance.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Cash Basis Accounting | Yes | Yes |
| Chart of Accounts (Pre-built, Landlord-Tailored) | Yes (pre-built + custom) | No |
| Journal Entries | Yes | No |
| Bank Reconciliation | Yes | No |
| Automated Bank Feeds | Yes (Major UK banks) | Yes |
| Open Banking Integration | Yes | |
| Double-Entry Bookkeeping | Yes | No |
| HMRC Box Pre-Mapping | Yes | |
| Xero Integration | No | |
| Spreadsheet Import/Export | Yes | Yes |
| Digital Record Storage | Yes |
Winner: RentalBux on accounting depth; ApariPro on tax return intelligence — RentalBux provides a full double-entry bookkeeping system with a landlord-tailored chart of accounts, journal entries, and formal financial reports. ApariPro provides a superior tax return preparation experience with AI pre-filling and real-time tax estimates, but does not replace a general accounting system. Landlords who need both bookkeeping and MTD compliance will find RentalBux more complete; landlords who have an accountant for their books and want AI-powered tax filing support will benefit from ApariPro.
Invoicing, Expense Tracking
RentalBux: Expense Management
RentalBux includes OCR receipt capture, structured expense tracking with landlord-specific categories, auto-categorisation, invoice creation with customisable branding, and payment tracking with reminders.
ApariPro: Advanced AI Document Analysis and Tax-Focused Expense Tracking
ApariPro's AI automation is centred on tax return preparation rather than bookkeeping. Its proprietary AI can analyse complex uploaded documents — rental statements, dividend vouchers, tax packs, bank statements — and instantly extract the relevant tax information to pre-fill SA100 form fields. For individuals, this replaces hours of manual data entry. For accountants, it dramatically reduces the time spent interpreting and re-keying client documents. Clients can snap and store receipts on the go, connect bank accounts for automatic transaction import, and view a real-time estimate of their tax position as data is added. ApariPro does not offer invoice creation, payment reminders for rent, or a structured expense categorisation system aligned to landlord-specific allowable deduction categories.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Invoice Creation & Sending | Yes | No |
| Invoice Customisation/Branding | Yes | |
| Online Payment Collection | Yes | |
| Payment Tracking/Reminders | Yes | No |
| Expense Tracking | Yes | Yes |
| Receipt Capture (OCR/Photo) | Yes | Yes |
| Expense Categorisation | Yes | |
| Automated Transaction Matching | Yes | |
| Mileage Tracking | No | |
| AI Auto-Categorisation | Coming soon |
Winner: Tie — different strengths — RentalBux wins on invoicing, landlord-specific expense categories, and payment tracking. ApariPro wins on AI document intelligence for tax return pre-filling, real-time tax estimates, and bulk client communication automation for accountants. The right winner depends entirely on whether your priority is property operations or tax return efficiency.
Reporting & Tax Forecasting
RentalBux: Formal Accounting Reports
RentalBux produces structured financial reports including profit & loss statements, balance sheets, journal reports, ledger reports, and trial balances. Smart categorisation helps ensure accuracy.
ApariPro: Real-Time Tax Position Tracking
ApariPro's reporting is oriented towards personal tax rather than accounting. Its automated dashboard tracks income, expenses, and tax estimates in real time across all income streams — giving individuals and their accountants a live view of the likely tax position before the final declaration is due. This running tax estimate is a practical feature that allows for year-round tax planning and cash flow management. ApariPro does not produce formal accounting reports (P&L, balance sheet, trial balance), property-level reporting, or investment analytics.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Profit & Loss Report | Yes (formal) | No |
| Balance Sheet | Yes | No |
| Trial Balance | Yes | No |
| Dashboard/Overview | Yes | Yes |
| Real-Time Financial Data | Yes | |
| Cash Flow Reporting | No | |
| Tax Estimate/Forecast | Yes | Yes |
| AI-Powered Features | Coming soon |
Winner: RentalBux on accounting reports; ApariPro on tax position visibility — RentalBux leads on formal accounting outputs needed for year-end accounts and audits. ApariPro leads on real-time tax position estimates that help individuals plan for their tax bill throughout the year.
Collaboration & Mobile Apps
RentalBux's Collaborative Features
RentalBux enables agent filing, which gives accountants and letting agents the ability to submit directly on a landlord's behalf.
ApariPro's Collaborative Features
ApariPro's accountant and tax agent solution is one of its most developed product tiers. The agent portal includes unlimited agents, HMRC agent feeds, bank feed access, intelligent AI document analysis, pre-filled SA100 forms, a client document repository, bulk AI-generated personalised emails, real-time filing status tracking, and a white-label option. Accountants can invite clients to connect their bank accounts, upload documents, and snap receipts through a dedicated client-connect interface — with the accountant retaining full oversight and approval before any return is filed.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Accountant/Advisor Portal | Yes | Yes |
| Multi-User Access | Yes | Yes |
| Agent Filing on Behalf | Yes | Yes |
| Bank Integration | Yes | |
| Platform | iOS, Android | |
| Web Browser Access | Yes | Yes |
| FCA Regulated | Yes | |
| GDPR Compliant | Yes | Yes |
Winner: Tie — audience-dependent — RentalBux wins on native mobile apps and landlord-focused agent access. ApariPro wins on accountant practice tools: unlimited agents, AI bulk emails, white labelling, CCH iFirm integration, and the client-connect data collection workflow. For property-focused accountants, RentalBux's agent portal is more relevant; for general tax practices, ApariPro's accountant solution is more sophisticated.
Ease of Use, Support & Security
RentalBux: Guided Workflows
RentalBux uses guided workflows, clear dashboards, and no accounting jargon. The platform offers phone support, email/chat support, and a help centre with guides and knowledge base articles.
ApariPro's Ease of Use
ApariPro describes itself as easy to set up with instant benefits. The onboarding process for individuals involves completing a short questionnaire that tailors the SA100 return to the user's specific income streams — meaning users only see the fields relevant to their situation, reducing complexity. The AI pre-fill function reduces manual data entry significantly. ApariPro offers phone support (Mon–Fri, 9am–5pm, 01788 422175), email support, and a help centre for both individuals and accountants.
| Feature | RentalBux | ApariPro |
|---|---|---|
| Phone Support | Yes | Yes |
| Chat Support | Yes | Yes |
| Email Support | Yes | |
| Help Centre/Knowledge Base | Yes | Yes |
| FCA Regulated | Yes | |
| Enterprise-Grade Security | Yes |
RentalBux Features
Sole Trader Income Support for MTD
RentalBux is one of the few landlord-focused MTD software platforms that supports self-employment income alongside UK and foreign property income within a single account. Landlords who also run a trade, consultancy, or freelance business can manage all quarterly submissions from one dashboard. Landlord Studio covers property income only.
Custom Chart of Accounts for Landlords
A property-tailored chart of accounts covering rental income, mortgage interest, insurance, repairs, utilities, letting agent fees, and more — all pre-mapped to HMRC Self-Assessment boxes. No setup required; the system is ready to use from day one. Landlord Studio has no equivalent.
Agent Filing on Behalf of Landlords
Letting agents and accountants can submit MTD quarterly updates and the Final Declaration on behalf of landlord clients directly from the platform. Landlord Studio allows accountant access but does not support submission on the landlord's behalf.
Branded Invoice Creation
Invoice creation with customisable branding for service charges and commercial landlords. Not available in Landlord Studio.
AI-Powered OCR Receipt Capture with Auto-Categorisation (Coming soon)
RentalBux's AI will read uploaded receipts and categorise the expense automatically against the pre-built chart of accounts. Landlord Studio's Smart Scan extracts dates and amounts but does not include AI-driven expense categorisation.
Formal Accounting Reports
Balance sheet, trial balance, ledger reports, and journal reports. Landlord Studio does not produce these natively.
Free Plan Including MTD Submissions Until March 2028
RentalBux's free single-property plan includes MTD quarterly submissions. Landlord Studio's free GO plan covers property management for up to three units but requires a paid PRO plan (from £12/month) to access MTD submission functionality.
Unique Features Only ApariPro Offers
Broadest Income Stream Coverage of Any Compared Platform
Over 15 supported income streams in a single SA100 filing: employment/PAYE, UK property, foreign income, self-employment, capital gains, investments/dividends, CIS, company directors, partnerships, expats, trust income, pension income, digital platform income, state benefits, and more. RentalBux covers three MTD income types; ApariPro covers virtually the entire personal tax return spectrum.
Advanced AI Document Analysis (SA100 Pre-Fill)
Upload rental statements, dividend vouchers, tax packs, P60s, or any tax document, and ApariPro's proprietary AI extracts the relevant data and pre-fills the appropriate SA100 form fields automatically. This is one of the most sophisticated document-to-tax-return automation capabilities available in any HMRC-recognised platform.
Real-Time Tax Position Estimates
As income and expenses are recorded, ApariPro automatically calculates and displays an estimate of the user's current tax liability — a practical tool for year-round tax planning and cash flow management.
White Label Option for Accountants and Partners
ApariPro can be white-labelled for accounting practices, wealth management firms, and digital platforms — allowing them to offer a branded Self Assessment and MTD solution to their clients under their own name.
CCH iFirm Integration (Wolters Kluwer Partnership)
The recently announced collaboration with Wolters Kluwer embeds ApariPro's AI-powered MTD preparation into CCH iFirm workflows — a significant integration for the many UK accounting practices that use CCH iFirm as their primary compliance platform.
Capital Gains, Investment, and Expat Tax Support
Landlords who also have capital gains from property disposals, investment portfolios, or complex expat tax situations can manage all of these in a single ApariPro SA100 filing.
Bulk AI-Generated Personalised Client Emails
Accountants can automatically send AI-drafted emails tailored to each client's specific tax requirements — reducing the administrative burden of chasing clients for information ahead of each quarterly and annual deadline.
Who Should Choose RentalBux?
RentalBux is a strong fit if you:
Landlords with Mixed Income Streams
If you earn from both property and self-employment, RentalBux handles sole trader income alongside UK and foreign property income in a single MTD-compliant platform.
Joint Owners and Family Portfolios
The automated profit-sharing split is a standout feature. Define ownership percentages once and RentalBux calculates each owner's share automatically.
Budget-Conscious Landlords Entering MTD
Free MTD software for single-property landlords until March 2028, with no upfront commitment.
Landlords Who Want Proper Accounting Structure
Chart of accounts, journal entries, profit & loss, balance sheet, and trial balance give RentalBux a structured accounting foundation.
Accountants and Letting Agents
Agent filing on behalf, multi-user access, and spreadsheet import make RentalBux practical for professionals managing multiple landlord portfolios.
Commercial Landlords and HMO Owners
Invoice creation with branding for service charges, plus automatic HMO unit creation and tenant management.
Who Should Choose ApariPro?
ApariPro is the better MTD software choice for:
Individuals with Complex Multi-Stream Tax Affairs
If your tax return includes property income alongside employment, capital gains, investments, dividends, expat considerations, CIS income, or trust income, ApariPro's 15+ stream SA100 handling and AI pre-fill makes it by far the most capable option for filing a complete, accurate tax return in one place.
Landlords Who Also Have Significant Non-Property Income
For a landlord who also has a large PAYE salary, a share portfolio, or overseas income, ApariPro's ability to handle the full SA100 — not just the property and self-employment boxes — makes it the more complete compliance tool for the final declaration.
Accountants Managing Complex Personal Tax Clients
ApariPro's accountant solution — with AI document analysis, SA100 pre-fill, bulk personalised emails, unlimited agents, white labelling, and CCH iFirm integration — is designed specifically for tax agents handling high volumes of complex self-assessment clients. It is not built for property-only client portfolios, but for practices with diverse client bases.
Wealth Management Firms and Financial Services Partners
ApariPro's partner solution is designed for financial services businesses that want to offer a tax compliance solution to their clients, with optional co-branding, white labelling, and a tax advisory AI module.
Individuals Who Want AI-Assisted Tax Return Preparation
For self-filers who want AI to do the heavy lifting — extracting data from P60s, bank statements, rental accounts, and investment reports, and pre-filling their tax return — ApariPro offers a level of document intelligence not available in most MTD platforms.