Buy-to-let planning · UK

See where your rental portfolio is really going.

Add your properties and mortgages, try the next purchase or remortgage before you commit, and watch twenty-five years play out — with UK tax, voids, and years like 2008 already in the mix. The same stress testing and scenario modelling banks and hedge funds use, built for your buy-to-let book.

PropMaps / Your plan
Try a scenario
yr 0yr 5yr 10yr 15yr 20yr 25£100k

Net worth · 25y

£124k

Cashflow /mo · at goal

£2,400

Properties · at horizon

4

Illustrative plan · the real Studio uses your properties, your mortgages, your goal.

For UK buy-to-let investors

Most landlords plan the next twenty years on a napkin and hope. Rates change. Voids happen. Tax rules shift. Life gets in the way. You deserve to see it coming. Banks and hedge funds stress-test every scenario. Your rental portfolio should too. PropMaps turns it into a plan you can actually look at for the next twenty-five years.

0yr

Plan horizon

0

Possible futures modelled

0

UK regions built in

0

Historical shocks replayed

Try the Studio · right here

Move one slider. Watch twenty years redraw.

No spreadsheets. No maths. Change a rate, a tax wrapper, a strategy — and see how your rental portfolio plays out across the next two decades.

PropMaps/ Modelling Studio
Overview

Net worth · real · 20 years

Your scenario
yr 0yr 5yr 10yr 15yr 20£500k£1.00M

Net worth · 20y

£0

Cashflow /mo

£0

Properties

0

Income goal

Not yet

hit in year 12

Historical replays · how your plan holds up3 / 3 pass
Rates spike ’90
GFC ’08
Mini-budget ’22

Illustrative preview · the real Studio uses your properties, your mortgages, your goal.

What’s under the hood

The tools that make a plan you can trust.

Six things PropMaps does quietly every time you change one input — institutional-grade scenario modelling, turned to a UK buy-to-let portfolio.

Cashflow, month by month

See every property earn, spend and pay down, every month, for the next 25 years. Real numbers, not just headline yields.

Month 84 · Flat, Manchester

Rent
+£4,200
Opex
£720
Interest
£1,850
Principal
£430
Tax (annual/12)
£410
Net after tax
+£790

UK tax done for you

Section 24, SDLT surcharges and dividend tax — all baked in. Compare owning in your name vs a limited company in one click.

Same portfolio, 4 tax vehicles · lifetime

Personal · basic£12,400yield 4.1%
Personal · higher£24,800yield 2.9%
Personal · additional£31,100yield 2.3%
Limited companyBest net£15,500yield 3.7%

The wrapper you choose can change your lifetime tax by tens of thousands.

Stress test the bad years

Replay 1990, 2008 and the 2022 mini-budget on your book. See what happens under joint rate + house-price shocks before they arrive for real.

Stress grid · does your plan survive?

HoldsWobblesBreaks
House prices ↑
−1%0+1%+2%+3%+4%+5%
+2%+1%0−1%−2%−3%−4%
Your plan·holds

Mortgage rate shock →

49 joint shocks in one glance. You can see the edge of the cliff long before you reach it.

A range of futures, not one

PropMaps runs 300 possible versions of the next 20 years and shows you the good, the middle and the bad. So you plan for reality, not a single lucky guess.

300 possible futures · net worth

P5 → P95
£720k£1.5M£2.4Myr 0yr 5yr 10yr 15yr 20

Bad case (P5)

£720k

Median

£1.5M

Best case (P95)

£2.8M

Even the worst 1-in-20 outcome has your book worth £720k — because you can see it now, not stumble into it later.

Compare any two decisions

Pin a plan. Change one thing. Pin it again. See both futures side-by-side and pick the one you'd rather live in.

4 pinned scenarios · 20-year outcome

Grow the book£2.1M+£1,850/mo
Grow then delever£1.8M+£2,340/mo
Sell one flat, buy HMO£1.9M+£2,050/mo
Do nothing£1.1M+£420/mo

Same book. Same market. Only your decisions change.

Every UK region, priced properly

London isn't the North East, and your plan should know it. Regional house-price and rent trajectories built in from day one.

Regional HPI curves · long-run annual

LDN+2.4%
London
SE+2.9%
South East
NW+4.1%
North West
YH+3.8%
Yorkshire
WM+3.5%
West Midlands
NE+3.9%
North East
SCO+3.3%
Scotland
WAL+3.0%
Wales
SW+2.6%
South West

Toggle regional HPI on and watch how a Manchester BRR out-earns a London BTL over 20 years.

Why landlords keep it open

A glimpse of your future — to validate the actions of the present.

The best reason to model your portfolio isn’t the numbers. It’s what the numbers give you back.

A roadmap you can see

Direction, not guesswork.

Property 1RefinanceProperty 2Refurb completeGoal metyr 0yr 25

Property investing is decades of quiet decisions. PropMaps turns them into a plan you can look at — every property, every year, every cashflow, laid out across the next 25 years. You stop hoping. You start knowing where you're headed.

Test a decision before you commit

Play it out. Then decide.

Buy the HMOBuy two flats

Should I buy a HMO or two flats? Fix for two years or five? Put it in a limited company or my name? Every one of those decisions ripples for twenty-five years. Try both in the Studio. See which future you'd rather live in.

Sleep through the next rate spike

Peace of mind, in numbers.

Rates ’90holds
GFC ’08holds
Mini-budget ’22holds
Voids +8ppbreaks

Rates will move. Voids will happen. House prices will dip. PropMaps replays 1990, 2008 and the 2022 mini-budget on your exact portfolio, so you can see whether your plan holds — and fix it now, quietly, if it doesn't.

For when the days feel long

Fuel for the long game.

You are hereWhere you’re headed

This is a twenty-year venture, and some months are grim. Rents come in late. A boiler goes. Nothing seems to be compounding. Open the model on days like that. See the plan. See where the line is going. Then get back to it.

“If you keep plugging away at this — even on the days when nothing feels like it’s working — the plan says the future is better than the present. That’s the whole point.”

Pricing

A studio you can keep running.

Monthly if you want flexibility. Annual if you want the better rate. Cancel any time.

Monthly

£39.95/month

Flexible monthly subscription. Cancel any time.

  • Full Modelling Studio access
  • Unlimited scenarios, portfolios & Monte Carlo
  • Stress Lab · Compare · Region Map
  • UK personal & limited-company tax modelling
  • Cancel any time
Best value · 47% off

Annual

£249.95/year

Best value for serious investors.

Save £229.45 (47% off)

  • Everything in Monthly
  • Priority support
  • Direct email line to the team
  • Lock in the annual rate

30-day money-back guarantee. Cancel any time.

How the routes compare

Four ways UK property investors plan. Here’s what each one actually costs you — in money, effort and blind spots.

Swipe the table to compare →

PropMapsSpreadsheetFinancial advisorDo nothing
Cost£249.95 / yearYour weekends£1,500+ / plan"Free" — until it isn't
What it modelsEvery property, every month, taxedWhatever you remembered to addA single scenario, one moment in timeHope
Stress testing1990, 2008, 2022 + custom shocksManual, per scenarioUsually noneNone
Monte Carlo300 correlated paths, in-browserNot without weeks of VBANot typically offeredNone
UK tax rulesS24, SDLT surcharge, dividendsAs accurate as you built itYes — for one scenarioDiscovered at year-end
If it's not for youCancel any time · 30-day refundYou still own the spreadsheetFee paidCompound cost

From the book

Landlords who stopped hoping and started looking.

I used to run the next purchase in a spreadsheet and hope. PropMaps showed me the limited-company wrapper was worth £18k over 10 years. I refinanced two flats the same week.
J

James

8-unit BTL, Manchester

£2.1k/mo plan

I nearly signed a 75% LTV at 5.9% because the yield looked fine. The stress grid showed the deal breaking if rates went another 1%. I walked. Best non-purchase I never made.
P

Priya

First-time landlord, Leeds

Bought with eyes open

We pinned “keep buying” against “grow then delever”. The income path hit our goal three years earlier. The whole board meeting took twelve minutes instead of three spreadsheets.
D

Daniel

Ltd company, 14 properties

Delevered on purpose

Section 24 was a rumour my accountant mentioned once a year. Seeing personal vs ltd on the same book, month by month, is what made me incorporate the next two purchases.
S

Sophie

HMO + single lets, Sheffield

S24 finally visible

I replayed the mini-budget on my exact mortgages. Two of five would have gone cash-negative. We remortgaged those first. The model paid for itself in one arrangement fee I didn’t waste.
M

Marcus

Portfolio landlord, Bristol

Slept through 2022

My partner and I used to argue from different Excel files. Now we open one Studio, change one assumption, and look at the same 25-year line. The argument ended. The plan didn’t.
E

Elena

Joint portfolio, Birmingham

Stopped guessing

FAQ

Questions, answered.

The Studio runs a monthly-resolution projector: every property has its own ledger, mortgages amortise properly, rental profits get taxed under Section 24 or corporation-tax rules, and refinance windows respect fix terms. It's the same shape of engine you'd find at a fund — turned on your book instead of a hedge fund's.

A spreadsheet models one scenario, one time. PropMaps models 300 correlated paths, side-by-side comparisons, and joint stress shocks in real time. If you want to answer "what happens if rates go to 8% AND rents flatline AND my Manchester flat sits vacant" — that's a 30-second click here, versus a rebuild in Excel.

Yes. Section 24 mortgage-interest restrictions, SDLT surcharges for additional dwellings, corporation tax for limited companies, and dividend tax on extraction. You can model the same portfolio personally, in a ltd co, or compare both wrappers side-by-side.

An advisor typically models a single scenario at a single moment in time. PropMaps lets you re-run any decision — refinance now vs wait, sell vs hold, personal vs ltd — under any market and see the 20-year outcome instantly. You keep control, and the underlying assumptions are transparent, not hidden in a PDF.

No. The Studio has sensible defaults on day one and comes seeded with a sample portfolio so you can explore. Every input is labelled in plain English. If you can read your last mortgage statement, you can build a model.

Your portfolio and scenarios are stored under your account. Nothing is shared with third parties. All UK-based hosting, all data encrypted in transit and at rest.

Full Modelling Studio access on either plan: unlimited scenarios, Monte Carlo, stress testing, region map, and UK tax modelling. Annual is the same product at a better rate — £249.95/year instead of £39.95/month.

Yes. Cancel any time from Manage subscription in the studio. There is a 30-day money-back guarantee, no questions asked. Email support@propmaps.io.

See where your portfolio is actually going.

Set up your properties in under ten minutes. See the next twenty-five years, decide with confidence, and get back to living the rest of your life.

Open the Studio

From £39.95/month · or £249.95/year · 30-day money-back