Being a landlord in the UK has never been straightforward, but the administrative burden has grown considerably in recent years. Between tracking income across multiple properties, managing joint ownership splits, handling letting agent statements, separating domestic and overseas rental income, and now preparing for Making Tax Digital, the paperwork alone can feel like a second job. Spreadsheets that once just about covered one property quickly buckle under the weight of a growing portfolio.
The right property management software does not just store your figures. It organises your entire financial picture, reduces the time you spend on admin, and keeps you on the right side of HMRC without requiring you to become a tax expert. RentalBux was built specifically for UK landlords to do exactly that. Not adapted from generic bookkeeping software, not a one-size-fits-all accounting tool, but purpose-built by UK property accountants for the specific complexity that comes with owning and letting property in this country.
What Makes RentalBux Different
RentalBux was designed from the ground up for UK landlords. Every feature reflects the actual financial complexity of owning and letting property, rather than a generic accounting framework retrofitted with a rental income category.
Property-level income and expense tracking
Every property in your portfolio is tracked individually. Income, expenses, and profit are visible at property level, not just as a combined total across your portfolio. This means you always know which properties are performing and which are not, without having to run manual calculations or break down combined figures yourself. Reports are generated automatically and are ready to share with your accountant or mortgage broker without any additional preparation.
Joint ownership handled automatically
Joint ownership is one of the most administratively demanding aspects of property investment, particularly where ownership is split unevenly or where multiple co-owners each need their own tax records. In RentalBux, you set the ownership percentages once. From that point forward, income and expenses are split automatically according to those percentages, and each co-owner receives accurate individual reports. There is no manual calculation involved and no risk of the figures drifting out of alignment over time.
UK and foreign property in one account
HMRC requires UK and overseas rental income to be tracked and reported separately. Managing this across two different systems, or manually separating figures within a single spreadsheet, adds unnecessary complexity. RentalBux separates domestic and foreign property income automatically within a single account. Foreign currency income is converted without manual intervention, and overseas properties are included in your portfolio dashboard alongside UK properties so you have a complete financial picture in one place.
Rental and self-employment income under one platform
A significant number of UK landlords are also self-employed or run their own businesses alongside their property portfolios. Most software platforms cover one income stream or the other. RentalBux covers both, with property accounting and self-employment income tracking managed together and reported through a single platform. For landlords who previously paid for two separate software subscriptions to cover both income types, this removes duplication and simplifies the entire reporting process.
Built-In Compliance Without the Complexity
Making Tax Digital for Income Tax is now live for landlords and sole traders with qualifying gross income above £50,000, with the threshold reducing to £30,000 from April 2027 and £20,000 from April 2028. Under MTD, quarterly updates must be submitted to HMRC through recognised software, and an annual Final Declaration replaces the traditional Self Assessment return.
RentalBux is officially listed on HMRC's recognised software page for Making Tax Digital for Income Tax. Quarterly submissions are made directly to HMRC from within your RentalBux account, with deadline reminders and submission history kept in one place. Section 24 mortgage interest restrictions are tracked automatically, with the 20% basic rate tax credit calculated without any manual input required. For landlords with both rental and self-employment income, both streams are included in a single MTD submission, removing the need to manage multiple filings.
Compliance is a natural outcome of using the platform correctly, rather than an additional task that requires specialist knowledge.
Features That Save Landlords Real Time
The administrative time savings RentalBux delivers come from automation at every stage of the process.
Bank feeds connect directly to your account and import transactions automatically, grouped by property. Expenses are categorised against HMRC-recognised allowable expense categories without manual intervention. Receipt scanning lets you photograph a bill or invoice on your phone and have it categorised automatically. Letting agent statements can be imported directly, removing the need to manually reconcile PDF statements each month.
Landlords using RentalBux report spending around ten minutes reviewing figures before each quarterly submission, compared to two or three evenings rebuilding figures from scratch using spreadsheets. An accountant collaboration portal means your accountant can access your records directly without you having to export, format, or email files.
Pricing and Getting Started
RentalBux offers a free plan covering one property with full accounting features, free until March 2028. Paid plans covering larger portfolios, self-employment income, or combined landlord and sole trader needs are currently free until August 2026, giving landlords the opportunity to get fully set up before Making Tax Digital quarterly submissions begin. No credit card is required to start, and there is no commitment. Setup takes under two minutes.
Conclusion
Managing rental property in the UK has never involved more moving parts. Joint ownership splits, overseas income, letting agent statements, Section 24 calculations, and now quarterly HMRC submissions — the admin burden is real, and it compounds with every property you add. RentalBux puts all of it in one place, purpose-built for landlords from the ground up, so the complexity is handled by the software rather than left to you.
The difference shows in the time you get back. Stop rebuilding the same figures from scratch every quarter. Stop paying for two software subscriptions to cover two income streams. Stop worrying about whether your records are HMRC-ready. RentalBux handles it, automatically.
