Property Portfolio OS

The financial
command centre
for serious operators.

Multi-entity, multi-currency, tax-aware portfolio intelligence. Built for investors who manage real assets at real scale.

10+
Currencies
Entities
100%
Clarity
app.1stnumbers.com
Live
Portfolio Overview — 15 Properties
All Entities · GBP
Portfolio Value
£3.24m
↑ +4.2% YTD
Net Yield
5.8%
↑ vs 5.1%
Cashflow / mo
£4.1k
↓ 1 void
Total Equity
£942k
↑ £38k
Blended LTV
70.6%
▸ Safe
Tax Provision
£18.4k
▸ Annual
12-Month CashflowAvg +£4,140/mo
Property
Rent
Yield
LTV
Status
14 Park Lane SW1
£2,200
6.4%
62%
Active
7 Canal St M1
£1,100
5.1%
74%
Void
Suite 3 EC2A
£3,800
7.2%
58%
Active
Portfolio IntelligenceMulti-Entity ConsolidationTax Position ModellingCurrency NormalisationDebt AnalyticsStress TestingDocument GovernanceSPV TrackingCapital StrategyIRR CalculationPortfolio IntelligenceMulti-Entity ConsolidationTax Position ModellingCurrency NormalisationDebt AnalyticsStress TestingDocument GovernanceSPV TrackingCapital StrategyIRR Calculation

Serious money.
Amateur tools.

Multi-million pound portfolios managed from Excel, WhatsApp, and memory. The market has no dedicated operating system for serious property operators.

  • 01
    Fragmented spreadsheetsMultiple files, no single source of truth. Errors compound monthly.
  • 02
    No multi-entity viewSPVs, personal names, trusts — no consolidated picture across structures.
  • 03
    Yield visibility is brokenGross yield is easy. True net yield after financing and tax is invisible.
  • 04
    No currency normalisationCross-border portfolios have no single consolidated reporting view.
  • 05
    Document chaosDeeds, mortgages, tenancies — scattered across email, folders, drives.
  • 06
    No strategic modellingNo stress testing, no forward projections, no data-driven capital decisions.

One platform for the
entire portfolio.

1st Numbers consolidates every asset, entity, currency, debt position, tax exposure and document into a single financial command centre. From 5 properties to 200+.

  • Asset, entity & portfolio level views
  • True leveraged net yield calculation
  • Multi-SPV consolidated reporting
  • FX-normalised global dashboard
  • Built-in tax position modelling
  • Debt covenant & refinancing alerts
  • Structured document governance
  • Interest rate stress testing

Ten modules.
One command centre.

Built specifically for portfolio-level financial intelligence — not letting management, not CRM, not single-property accounting.

01🏗️
Portfolio Structure

Define entities, SPVs, trusts. Assign properties. Track directors and ownership percentages.

02🏠
Asset Registry

Central record for every property. Valuations, IRR, capital appreciation, yield tracking.

03💰
Income & Expense

Full rent roll, vacancy, maintenance, agent fees. NOI, gross yield, net yield outputs.

04🏦
Financing

Loan registry, LTV, DSCR, amortisation. True leveraged yield and refinancing indicators.

05📋
Tax Position

Rental income tax, CGT estimates, withholding tax, mortgage interest deductibility.

06📁
Document Vault

Deeds, mortgages, tenancies, insurance — linked to property or entity. Expiry alerts.

07💱
Multi-Currency

USD, GBP, EUR, AED, NGN, CAD and more. FX normalisation across the whole portfolio.

08📊
Portfolio Dashboard

Total value, equity, debt, weighted yield, portfolio IRR, currency exposure. The command centre.

09
Scenario & Stress

Rate shock, vacancy stress, FX movement, exit modelling. Plan before it matters.

10🎯
Capital Strategy

Acquisition modelling, hold vs sell, debt vs equity impact, reinvestment scenarios.

10+
Currencies Supported
200+
Properties Supported
100%
Portfolio Visibility
0
Spreadsheets Needed

Built for operators,
not accidental landlords.

1
🏘️
Portfolio Landlords

You've outgrown spreadsheets. Real yield visibility, mortgage tracking, and tax clarity without hiring a CFO.

5 — 200+ Properties
2
🏢
Multi-SPV Operators

Multiple legal entities, multiple directors, multiple mortgages. One consolidated, authoritative view.

2 — Unlimited SPVs
3
🌍
Cross-Border Investors

UK, UAE, Nigeria, South Africa, Canada — assets across jurisdictions, reported in one currency.

10+ Currencies
4
👨‍👩‍👧‍👦
Family Offices

Institutional-grade reporting for private family wealth. Full multi-entity consolidation and audit trail.

Institutional Tier
5
🤝
Syndicates & Advisors

Investment syndicates and professional advisors needing consolidated reporting across investor structures.

Multi-Client View
6
📈
Scaling Investors

At 10–25 properties you're in the stress zone. Cashflow is complex, tax is serious, lenders want data.

The Stress Zone

Portfolio control
at every scale.

Priced by portfolio scale, not door count. No per-property nickel-and-diming.

Starter
£39/mo
Billed monthly · Cancel anytime
Up to 10 properties
  • Portfolio dashboard
  • Asset registry
  • Income & expense tracking
  • Financing module
  • Document vault (5GB)
  • 2 currencies · 1 entity
Get Started
Portfolio Pro
£129/mo
Billed monthly · Cancel anytime
Up to 75 properties
  • Everything in Growth
  • Unlimited entities & SPVs
  • All 10+ currencies
  • Advanced tax modelling
  • Capital strategy module
  • Document vault (100GB)
Get Started
Family Office
Custom
Annual contract
200+ properties
  • Everything in Portfolio Pro
  • Multi-client views
  • Dedicated onboarding
  • API access & SLA
  • Priority support
  • Unlimited storage
Contact Us

What serious operators
are saying.

Finally I can see my true net yield after mortgage and tax in one screen. This replaced three spreadsheets and a very confused accountant.

MO
M. Okafor
18 Properties · 2 SPVs · Lagos + London

The multi-currency dashboard is the only reason I understand what my Dubai portfolio is actually contributing to my overall numbers.

AK
A. Khan
34 Properties · 4 Entities · UAE + UK

When my broker asked for a consolidated portfolio overview I sent him a 1st Numbers export in two minutes. Previously that was a two-day job.

SR
S. Richards
22 Properties · 3 SPVs · UK

Stop managing your portfolio
from spreadsheets.

Your first 14 days are free. No credit card required. See your real numbers in under 30 minutes.

14-day free trial · No credit card · Cancel anytime