What actually lands in your account - after tax, not before it.
Section 24 changed what landlords keep, not just what they earn. AssetIQ calculates your real position under it, not the pre-2017 numbers that still circulate in casual yield calculations.
What it does
Section 24 applied properly
Mortgage interest relief is calculated as a tax credit at the basic rate, not deducted as an expense - the actual post-2020 rule, which materially changes what a leveraged deal really returns for a higher-rate taxpayer.
Both tax bands modelled
See your position as a basic-rate taxpayer and a higher-rate taxpayer side by side, since the gap between them is often the difference between a deal that works and one that doesn’t.
Capital growth and rental return, separated
Equity built through appreciation and cash generated through rent are tracked separately, because they behave differently and matter differently depending on your actual goal.
1, 5, 10 and 20-year projections
See the same deal’s trajectory over different horizons, using the growth and rent-increase assumptions you set - not a single, static first-year snapshot.
How it works
Starts from the real cash flow
Rent minus actual operating costs minus the real mortgage payment - the same figure every other part of the calculator uses, not a separate, simplified version.
Applies the correct tax treatment
Mortgage interest relief as a 20% tax credit, rather than an expense deduction, calculated against your selected tax band.
Projects forward year by year
Rolls the numbers forward using your chosen rental growth and capital appreciation rates, compounding properly rather than a straight-line estimate.
Separates what you’d actually realise
Shows cash flow and equity growth as genuinely different things - one you can spend now, one you only realise on sale, often after capital gains tax.
Why it matters
Section 24 isn’t a footnote
For a highly-leveraged deal held by a higher-rate taxpayer personally, it can be the single biggest factor in whether the numbers actually work - far bigger than most rough calculators account for.
Yield answers the wrong question
A deal’s yield says nothing about what you keep after tax and mortgage costs - two deals with identical yields can have meaningfully different real returns once tax enters the picture.
A one-year number hides the real picture
Some strategies lose money early and make it back over a decade through appreciation; others do the opposite. A single year’s snapshot can make either look like the wrong call.
See your own numbers, under your own tax band, over whichever horizon actually matters to you.