Choosing software for a UK property business means checking what it records, what it computes, and whether its totals can be moved into a tax return.
A UK landlord's accounts start with two lists kept per property: rents received during the year and expenses paid during the year, with the profit as the difference between them. Every expense must satisfy the test of being incurred wholly and exclusively for the property business, and software earns its place when those lists maintain themselves — receipts captured as they arrive, categories mapped to what HMRC allows, and a repair distinguished from an improvement, because only the first reduces taxable profit. Jointly owned property adds a second dimension: each owner declares their own share of income and expenses, so a tool that cannot split a ledger by owner produces figures that cannot be pasted into a return. A loss year still has to be declared, which means the negative result must survive the same record keeping as a profitable one.
Four UK calculations separate a general bookkeeping app from landlord accounting software. First, the Section 24 finance cost restriction: mortgage interest is not deducted from rental profit, and instead a basic rate credit of 20 per cent applies to qualifying finance costs, which pushes higher-rate landlords towards a different final bill than a simple profit and loss suggests. Second, the choice behind every landlord's return — whether the £1,000 property income allowance or actual expenses gives the lower liability — which is only answerable if the expense total already exists. Third, Rent a Room relief at £7,500 where rooms in the main home are let. Fourth, the tenancy figures that sit next to the money: a deposit capped at five weeks' rent where the yearly rent is under £50,000, held in a protection scheme within 30 days of receipt with the prescribed information served on the tenant.
The useful questions when landlord accounting software is compared are concrete rather than aspirational. Does each property produce its own profit line, or are all rents pooled into one figure? Can joint ownership be recorded as shares rather than a single blended total? Does the product hold a mix of UK and overseas property, so the SA105 UK property pages and the SA106 foreign pages both have totals waiting? Does it show the Section 24 credit against the finance costs instead of hiding it in a note? And can the year leave the product in a format the landlord or their accountant can use, without re-typing a single column? A free tier is worth testing against a genuine year of receipts and repairs rather than an empty account, because the categories, the joint-ownership split and the export are what actually decide whether January is calm or not.
KAZAALBAIDA is built for landlords and self-employed professionals who run property: it records income and expenses property by property, categorises costs against the rules the UK return applies, calculates the Section 24 credit rather than leaving it to be worked out by hand, and produces a pre-filled SA105 summary so the figures move into the Self Assessment return in an organised state. Contracts, invoices and tenants sit in the same system as the finances, which means the deposit, the rent schedule and the receipt behind a deduction are one click apart instead of scattered across a mailbox. Logging throughout the year is what turns the accounts from a reconstruction exercise into a report, and it is the difference between claiming everything allowable and remembering only what a folder happens to contain.
What UK landlord accounting must produce: per-property profits, Section 24 credits, the £1,000 allowance decision and SA105-ready totals.
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