A decision guide for Scottish landlords and investors weighing up the two routes — with the tax, mortgage, and admin differences that actually matter.
There's no single right answer — it depends on your tax band, how many properties you plan to hold, and what you intend to do with the rental profit. As a general pattern:
This is usually the deciding factor. Since 2017's Section 24 changes, personal landlords can no longer deduct mortgage interest before working out their tax bill — they only get a 20% tax credit instead, regardless of their actual tax rate. Companies were never affected by this rule.
Limited company buy-to-let mortgages typically carry a rate premium of around 0.2-0.5% over personal buy-to-let rates, and the panel of lenders is smaller — many high-street banks don't offer limited company products at all, so you're more likely to need a specialist broker. On the upside, the interest cover ratio (ICR) lenders require is often lower for companies — commonly 125%, compared to 145% for personal higher-rate taxpayers — because companies aren't affected by the Section 24 tax restriction that pushed personal ICR requirements up. Most landlords on either route choose interest-only rather than repayment — see our repayment vs interest-only guide for why that choice matters as much as the personal/company decision itself.
Calculate mortgage repayments Check buy-to-let affordabilityThis is a genuinely important difference, not just a tax-rate nuance. As an individual, you only pay the 8% Additional Dwelling Supplement (ADS) if you already own another residential property. A limited company pays ADS on every single residential purchase — even its very first one, with no exceptions. Standard Land and Buildings Transaction Tax (LBTT) bands apply the same way to both.
Basic-rate taxpayers with one or two properties often find personal ownership simpler and just as cost-effective, since the Section 24 changes have less impact at their tax rate. Higher and additional-rate taxpayers — and anyone planning to build a larger portfolio over time — more often find the company route pays for itself within a few years, particularly if profits are reinvested rather than withdrawn.