Investments Playbook Get the Playbook
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The library

Playbooks

One framework per page. The rule, the arithmetic, and where it breaks. Nothing here is a recommendation, all of it is a method.

Property
Net rental yield in Dubai

Net rental yield in Dubai is rent after all running costs, over the price plus the statutory 4.00% Land Department fee and agency costs: 4.33%, not 7.00%.

Includes a calculator
Property
Rent or buy in Dubai

On the illustrative Dubai apartment at flat prices, owning takes eleven years to have cost less than renting the same unit, and the three to five years every competing page asserts needs 2.24% a year of capital growth to be true.

Includes a calculator
Property
Off-plan payment plans in Dubai

Two off-plan payment plans quoted at the same headline price are not the same price, because money paid later costs less in present value, and the gap between a front loaded plan and a post handover plan is commonly five to fifteen percent of the headline figure, while the same plan also fixes, by statute, what a default costs you.

Includes a calculator
Property
Cash on cash return

Cash on cash return is the annual cash left after every running cost and every mortgage payment, divided by the cash you actually put in, and it is the only property return figure that answers what your own money earned.

Includes a calculator
Property
Transaction costs and the minimum hold period in Dubai

Buying and selling the same Dubai apartment costs 9.72% of the price with a mortgage on both sides, which is 2.11 years of net rent, and on the Land Department's own index holding longer did not improve the odds of clearing it.

Includes a calculator
Portfolio
The three fund portfolio, and why it breaks for expatriates

The three fund portfolio holds a total domestic equity fund, a total international equity fund and a total domestic bond fund at market weights, and its weakest assumption is the word domestic, which has no meaning for an investor with no home bond market.

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Portfolio
All Weather and the four boxes

All Weather is Ray Dalio's framework holding that every economic environment is a combination of growth and inflation either rising or falling, and that a portfolio should hold assets that win in each of the four resulting boxes rather than betting on which one arrives.

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Portfolio
Lump sum versus cost averaging

Vanguard's research across US, UK and Australian markets found that investing a lump sum immediately beat spreading it in over twelve months in roughly two thirds of the historical periods tested, because markets rise more often than they fall.

Includes a calculator
Portfolio
Safe withdrawal rate

The safe withdrawal rate is the share of a portfolio you can spend in the first year of retirement, increasing with inflation thereafter, without running out of money, and current credible estimates range from about 3.9 percent to about 4.7 percent depending on the assumptions.

Includes a calculator
Tax
Fund domicile, and the sixty thousand dollar trap

For an investor who is not a US person, holding US domiciled funds exposes everything above sixty thousand dollars to US estate tax at rates rising to forty percent, while the identical index held through an Irish domiciled UCITS fund generally carries no such exposure and half the dividend withholding.

Includes a calculator
Risk
Drawdown recovery math

Losses and gains are not symmetric: a fall of fifty percent requires a gain of one hundred percent to get back to where you started, and the required recovery accelerates sharply as the loss deepens.

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Behavioural
The behaviour gap

The behaviour gap is the difference between the return a fund reported and the return its average investor actually earned, and it exists because money tends to arrive after good performance and leave after bad.

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Property
Dubai vs London property investment

A Dubai resident pays £58,280 stamp duty on an average London flat and keeps 2.35% after UK tax, 2.29% from 2027, where a Dubai flat keeps 4.33% untaxed.

Includes a calculator
Property
Off-plan vs ready property in Dubai

On the same Dubai apartment priced as cash flows, a payment plan's time value roughly pays for the rent an off-plan buyer gives up, so what decides off-plan against ready is not the discount but whether the unit is worth as much as a ready one on handover day, where five percent less moves the answer further than a two year delay.

Includes a calculator
Cross-asset
Property versus index funds

Property and index funds are not competing return numbers, they are competing structures: property offers cheap leverage and a contractual income at the cost of eight to ten percent round trip friction, total illiquidity and single tenant concentration, while a fund offers instant diversification and near zero costs with no safe way to borrow against it.

Includes a calculator
Property
Mortgage versus cash

Borrowing to buy a property raises the return on your own money whenever the net yield exceeds the mortgage rate and lowers it whenever it does not, so the decision is not about affordability, it is about whether the spread between those two numbers is wide enough to pay you for the risk.

Includes a calculator
Property
Short let versus long let in Dubai

A Dubai short let that grosses AED 86,250 more than the annual tenancy on the same one bedroom can end up netting AED 3,850 more, once the operator share, the cleaning, the utilities the law will not let you bill to the guest, the tourism dirham and the furnishing capital have come out.

Includes a calculator
Property
Break-even occupancy in Dubai

Break-even occupancy on a Dubai holiday home is 67.9% against the annual tenancy it replaced, not the 28.2% every page prints against zero.

Includes a calculator
Property
Dubai service charges and the reserve fund

Dubai service charges under Law No. (6) of 2019: your share is the deed area, no charge without RERA approval, and the reserve sits in a separate account.

Includes a calculator
Property
District cooling and chiller charges in Dubai

Dubai chiller charges under ECR 6 of 2021 and RD10: the capacity charge does not stop when the flat empties, and what a chiller-free premium buys.

Includes a calculator
Cross-asset
Currency risk and the dirham peg

The dirham has been pegged to the US dollar at 3.6725 for decades, which means a Gulf resident holding dirham property, dirham salary and dollar denominated funds is not diversified across three currencies but concentrated in one, and the exposure only becomes visible when the money is eventually spent somewhere else.

Includes a calculator
Portfolio
Fee drag

Fee drag is the compounding cost of every percentage charged against a portfolio each year, and because it is deducted from the base that would otherwise have compounded, a one percent annual fee costs far more than one percent of the final result.

Includes a calculator
Risk
Emergency liquidity

Emergency liquidity is cash held deliberately so that a job loss, a vacancy or a levy never forces the sale of an illiquid asset at the wrong moment, and for a property owner in an expatriate market it needs to be larger than the standard advice because the two risks arrive together.

Includes a calculator
Risk
Concentration limits

A concentration limit is a rule set in advance about how much of your net worth any single asset, building, tenant, employer or currency may represent, and its purpose is to make the decision while you are calm rather than while you are being persuaded.

Includes a calculator
Valuation
Price per square foot in Dubai

Dubai law lets a developer deliver a unit up to five percent smaller than the area you bought and owe you nothing for it, which on a AED 1,500,000 one bedroom is AED 75,000 of area paid for and not delivered, and raises the price per foot actually paid by 5.26%, so the denominator of this calculation carries a one-sided error band larger than the entire Land Department registration fee.

Includes a calculator
Valuation
Discounted cash flow

Discounted cash flow values an asset by converting every future payment it produces into what that payment is worth today, using a discount rate that reflects what the money could otherwise earn, which makes it the only honest way to compare investments whose cash arrives at different times.

Includes a calculator
Property
Dubai rent increase caps and the RERA rental index

How much a Dubai landlord may raise the rent, in five bands against the official index, and what it costs at the centre to refuse an increase over the cap.

Includes a calculator
Portfolio
Allocation by horizon

Allocation by horizon assigns each pot of money an asset mix based on when it will be spent rather than on the owner's appetite for risk, because a deposit needed in eighteen months and a retirement fund needed in twenty five years are different problems that a single risk profile cannot answer.

Includes a calculator
Portfolio
Rebalancing bands

A rebalancing band is a rule that triggers a trade only when a holding drifts beyond a set distance from its target weight, which keeps a portfolio close to its intended allocation while trading far less often than a calendar schedule would.

Includes a calculator
Cross-asset
Inflation and real returns

A real return is what is left after inflation, and because inflation compounds silently against every asset at once, a portfolio that looks like it is growing in currency terms can be losing purchasing power for years without a single statement showing a loss.

Includes a calculator
Tax
Wills and succession in the UAE

Assets held in the UAE by a non-Muslim expatriate do not automatically pass under their home country will, and without a will registered in a recognised UAE registry the default distribution rules apply to those assets regardless of the owner's nationality or intentions.

Includes a calculator
Property
The home you live in

A home you live in produces no income and cannot be sold without buying or renting somewhere else, which makes it a consumption asset with an investment attached rather than an investment, and treating it as the latter distorts every other decision in the portfolio.

Includes a calculator
Behavioural
Sunk cost and the decision to sell

The price paid for an asset has no bearing on whether to keep it, because that money is spent either way, and the only question that matters is whether the asset is the best use of the capital it currently ties up.

Includes a calculator
Property
Due diligence before buying property in Dubai

Due diligence in Dubai divides into the checks that decide whether you own anything at all and the checks that decide what it is worth, and only the second kind can be ranked, which on a one bedroom at AED 1,500,000 puts the two document checks almost nobody performs at 7.5 times the registration fee split every buyer argues about.

Includes a calculator
Property
The cost of selling property in Dubai

Coming out level on a mortgaged one bedroom bought at AED 1,500,000 in Dubai takes a resale at AED 1,648,915, a rise of 9.93%, which is more than the 9.72% the round trip costs because the agency commission and its VAT are charged on the price the property sells for rather than the price it was bought at.

Includes a calculator
Risk
Insurance and its gaps

Insurance transfers risks that would be financially catastrophic and is poor value for risks that would merely be inconvenient, which means the useful question is never what am I insured for but which single event would do the most damage and whether anything currently covers it.

Includes a calculator
Risk
The order of debt repayment

Spare money should clear the highest interest rate debt first, because repaying a debt is a guaranteed return equal to its interest rate, and only once the rate on the remaining debt falls below what the money could reliably earn elsewhere does investing instead become the better trade.

Includes a calculator
Tax
Corporate versus personal ownership

In the UAE, rental income earned by an individual from property held personally without a licence falls outside corporate tax entirely, while the same property held through a company is taxable at nine percent above the threshold, which makes the ownership structure a larger decision than most buyers realise.

Includes a calculator
Portfolio
What bonds are for

Bonds are held to provide a predictable payment stream and to behave differently from equities when equities fall, not to produce high returns, which means the right question about a bond holding is what job it does in the portfolio rather than what yield it shows.

Includes a calculator
Portfolio
What diversification does, and does not

Diversification removes the risk specific to any one holding and does nothing about the risk shared by all of them, which is why a portfolio of thirty companies in one country or six apartments in one city is far less diversified than the number of lines suggests.

Includes a calculator
Valuation
Reverse the assumption

Reversing the assumption means taking the price being asked, holding your required return fixed, and solving for the growth rate the price implies, which converts a forecast you were asked to accept into a claim about the future that can be checked against history.

Includes a calculator
Property
The capitalisation rate

A capitalisation rate is a property's net operating income divided by its price, which makes it a measure of what the building earns rather than what you earn, because it deliberately excludes your mortgage, your acquisition costs and your tax position.

Includes a calculator
Property
The one percent rule, and why it does not travel

The one percent rule says a rental property should let for at least one percent of its purchase price every month, which is a screening shortcut built on one country's cost structure and gives badly wrong answers in any market where those costs differ.

Includes a calculator
Valuation
Price to rent

The price to rent ratio is a property's price divided by a full year of rent on the same property, and it is the cleanest single figure for comparing how expensive housing is between cities, across time, and against the alternative of simply renting.

Includes a calculator
Risk
Sequence of returns risk

Sequence of returns risk is the fact that the order in which returns arrive changes the outcome as soon as money is being paid in or taken out, so two portfolios with identical average returns can leave one retiree comfortable and the other out of money.

Includes a calculator
Property
Mortgage capacity in Dubai

The Central Bank sets three caps on a Dubai mortgage, not two, and the deposit advertised as 20% is 26.91% of the price once the cash is counted.

Includes a calculator
Property
Refinancing a Dubai mortgage

Switching a Dubai mortgage costs AED 19,715 on the illustrative loan, and the half point brokers recommend refinancing for takes 61 months to repay.

Includes a calculator
Portfolio
Where cash should actually sit

Cash held for a known purpose belongs in an instrument that matches when the money is needed, which for most horizons means a short dated government bill or a fund of them rather than a current account, because the gap between the two is a real return given away for nothing.

Includes a calculator
Risk
Position sizing

Position sizing decides how much of a portfolio a single holding may occupy, and it is chosen by asking what happens if that holding goes to zero rather than by how confident anyone feels about it.

Includes a calculator
Tax
Tax on Dubai rental income

The UAE charges nothing on your rent, which is exactly why the double tax treaty cannot help a UK resident, and why a 4.33% net yield becomes 2.60%.

Includes a calculator
Property
Settling a property purchase from crypto

A Dubai property purchase funded from cryptocurrency is a conversion followed by a dirham transaction, not a crypto transaction, and the arithmetic that decides what the buyer actually pays sits entirely inside the conversion step that the advertisement does not describe.

Includes a calculator
Property
Proving the source of crypto funds

A UAE property purchase funded from cryptocurrency triggers a reporting obligation on the broker whether the coins are paid directly or converted to cash first, so the documentary chain from acquisition to settlement is part of the transaction rather than an afterthought.

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Risk
Funding a payment plan from a volatile asset

An off-plan payment plan is a fixed schedule of dirham obligations, and funding one from an asset that can halve converts a purchase into a sequence of forced sales at whatever price happens to prevail on each instalment date.

Includes a calculator
Portfolio
Crypto concentration and property

Moving part of a crypto holding into property reduces concentration by less than it appears to, because a mortgage rebuilds the risk that the sale removed and both assets respond to the same conditions that set the price of liquidity.

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Property
Tokenised property

Tokenised property splits a building into small transferable shares recorded digitally, and Dubai Land Department's pilot of it settles exclusively in dirhams with no cryptocurrency involved, which makes it a distribution mechanism for property rather than a way to deploy crypto.

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Tax
The year you sell

The tax owed on a crypto disposal is decided by where the seller was tax resident when the disposal happened rather than by where the money is spent afterwards, so the sequence of a move and a sale changes the outcome more than the destination does.

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Risk
Liquidity risk

Liquidity risk is the gap between what an asset is worth and what it can be sold for today, and it is the only risk that decides whether a portfolio survives a bad month rather than merely how much it falls.

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Behavioural
An investment policy statement

An investment policy statement is one page written while nothing is going wrong, setting out what you own, why, and the conditions under which you will change it, and its whole function is to be consulted at the moment its author least wants to read it.

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Cross-asset
Gold and real rates

Gold pays no income, so its main competition is the real yield on a government bond, and the relationship between the two explains more of gold's behaviour than inflation does even though inflation is the reason most people say they hold it.

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Portfolio
Sixty forty, and its critics

Sixty forty is a portfolio of sixty percent equities and forty percent bonds, and the recurring argument about whether it is dead is usually an argument about the last three years being mistaken for an argument about the next thirty.

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Valuation
CAPE, and what it does not tell you

The cyclically adjusted price to earnings ratio divides price by ten years of inflation-adjusted earnings to smooth the business cycle out of the denominator, and it carries useful information about long-run returns while carrying almost none about the next year.

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Valuation
Where a return actually comes from

Any expected return breaks into three parts, income, growth in that income, and a change in what the market pays for it, and the third part is the one nobody can forecast and almost every projection quietly assumes.

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Valuation
The Fed model, and the error inside it

Comparing an earnings yield with a government bond yield feels like comparing two prices for the same thing, and it is not, because one of them already contains inflation and the other does not.

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Portfolio
Glide paths, and the one that rises

The standard advice is to hold less in equities as you age, the research that examined it most carefully found a rising path did better, and a second body of research using a century of international data found the opposite, which is the honest state of the question.

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Valuation
Margin of safety, and what it costs

Buying only at a discount to your own estimate of value protects against the estimate being wrong, and the discount is not free, because every point of it also turns away things that were worth buying.

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Portfolio
The permanent portfolio

Harry Browne's answer to not knowing what the economy will do next was four equal quarters, one for each condition it can be in, and the interesting thing about it is not the return but which objection it survives.

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Portfolio
Core and satellite

Hold most of the money in something boring that tracks the market and confine every conviction to a small deliberate remainder, which works only if the remainder is measured, capped and reviewed rather than merely called a satellite.

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Property
Dubai vs Singapore property investment

A foreign buyer pays S$320,648 stamp duty on a S$517,536 Singapore flat and keeps 1.72% after two annual taxes, where the same money in Dubai keeps 4.33%.

Includes a calculator
Tax
The Dubai golden visa against the Portugal D7

The asset test needs AED 2,000,000 that may not be sold for ten years, while the income test clears on AED 1,483,333 that stays sellable.

Includes a calculator
Property
Freehold areas and foreign ownership in Dubai

Regulation No. (3) of 2006 designates 45 numbered land plots across 23 areas rather than the thirty-odd community names every published list repeats, and because the same article grants leasehold as readily as freehold, a 99-year term granted when it came into force has 79 years left and is worth AED 42,639 less than freehold on the illustrative apartment.

Includes a calculator