IPS constraints: liquidity, time horizon, taxes, legal and unique circumstances
Five constraints narrow the choice of assets. Liquidity: cash the client will need. Time horizon: when the money is needed, often in stages. Taxes: how returns are taxed. Legal and regulatory: rules that apply to the investor. Unique circumstances: anything else particular to the client, including ethical preferences.
Before this: Risk and return objectives: willingness vs ability to take risk
On the exam
- Describe the investment constraints of liquidity, time horizon, tax concerns, legal and regulatory factors, and unique circumstances and their implications for the choice of portfolio assets
Describe each constraint and what it implies for asset choice. Expect 'which constraint does this fact relate to?' and 'what does this constraint imply?'. Near-term cash needs are liquidity, not time horizon.
How deeply to learn each part
- Know the idea
- Understand it in general. It frames other topics, but you will not calculate with it.
- Use it
- Understand it well enough to solve a question with it. Recognize when it applies.
- Memorize
- Learn it by heart. The exam will not give it to you.
You know this one. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still do.
You tested strong here. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still know it.
What are the IPS constraints?
The objectives say what the client wants. The constraints say what limits the client in getting it. There are five, and every fact in a client vignette belongs to one of them. Constraints come in two kinds, internal and external constraints : internal ones are set by the client, external ones by law or regulation. The investment policy statement (IPS) records all of them in the same place.
- Liquidity requirements Memorize cash the client will need
- Expected needs tuition, a house deposit, a tax bill, benefit payments
- Unexpected needs emergencies, insurance claims
-
- Time horizon Memorize when the money is needed
- Single stage one goal, one date
- Multistage working years, then retirement
-
- Tax concerns Memorize how returns are taxed
- Taxable investor judge returns after tax; favor gains over income
- Tax-exempt investor indifferent to the form of return
-
- Legal and regulatory factors Memorize rules that apply to the investor
- Portfolio limits caps on equities, foreign assets, self-investment
- Trading restrictions insiders and material nonpublic information
-
- Unique circumstances Memorize anything else particular to the client
- Beliefs and values faith, environmental, social and governance (ESG) and ethical exclusions
- Concentrations employer shares, income tied to one industry
-
Sort each fact into its constraint before you read on. In a vignette, sort first, then answer.
Liquidity: when will cash be needed?
Memorize
Liquidity requirements are the expected and unexpected withdrawals from the portfolio. For an individual: healthcare, tuition, a house deposit, a tax bill. For institutions: spending rules at an endowment, claims at a property and casualty insurer, benefit payments at a pension plan or life insurer.
When a requirement exists, set aside part of the portfolio to cover it, in assets that are easy to turn into cash and low in risk when the need arises. A bond that matures the month the tuition falls due is ideal, because its value is known with reasonable certainty. Illiquid assets such as private equity or real estate are unsuitable for money needed soon.
Time horizon: how long until circumstances change?
Memorize
The time horizon is the period over which the investor is investing: the accumulation period before assets are withdrawn, or the period until the client’s circumstances change. A 52-year-old who plans to retire at 64 has a 12-year horizon, even though the portfolio is not liquidated at 64. Its structure may need to change as the client starts drawing income.
A multistage time horizon has several phases with different needs: for example 20 working years of saving, then 25 years of retirement spending. Plan each stage.
A longer horizon allows more risk and more illiquidity, because there is time to recover from losses. A short horizon makes risky or illiquid assets unsuitable.
Taxes: what does the client keep?
Use it
Tax concerns depend on the investor’s status. Some investors, such as many pension funds, are exempt. Others face different rates on income (interest and dividends) and capital gains. Typically income is taxed more heavily than gains, and gains are taxed only when realized, so deferral has a time-value benefit.
A taxable investor therefore judges returns after tax and may favor assets that produce gains rather than income, and tax-advantaged instruments (for example, municipal bonds in the United States, whose interest is exempt from tax). A tax-exempt investor is relatively indifferent to the form of return.
A taxable bond yields 4.20% before tax. The investor's tax rate on the income is 30.00%. The after-tax yield is closest to:
4.2 × (1 − 0.3) = 2.94%
After-tax return2.94%
- 4.2×(1−0.3)=percent
- 4.2ENTER1ENTER0.3−×percent
ENTER enter (on the HP, puts the number on the stack)
Legal and regulatory factors: what do the rules say?
Memorize
Legal and regulatory factors are restrictions on how the portfolio may be invested. Some countries limit institutional investors’ portfolios, for example a cap on the share of equities, real estate or overseas assets in a pension fund. Pension funds also often face self-investment limits on securities issued by the plan sponsor.
An individual can be restricted too. A company director who has material nonpublic information, or who must avoid trading before results are published, cannot trade the company’s shares. The IPS should record the restriction so that the manager does not trade by accident.
Unique circumstances: what else is particular to this client?
Memorize
Unique circumstances cover everything else that materially affects the portfolio, including beliefs and values.
- Faith and ethics. An investor following Shari’a avoids interest-bearing debt and gambling. Others avoid weapons, tobacco or businesses with poor labor or environmental records. Exclusions apply to the investable universe and to the client’s benchmark.
- Concentration. An employee with shares and options in the employer is already exposed to it and should not add more. A shipbroker, whose commissions rise and fall with freight rates, should hold little in shipping shares.
- Other wealth. A portfolio may be only part of the client’s wealth. Whatever is outside the manager’s control still affects what the portfolio should hold.
Investing in line with such preferences is often called socially responsible investing. The final lesson of this module covers the environmental, social and governance (ESG) approaches in detail.
Exam tip Three look-alikes: a dated outflow is liquidity; life stages are time horizon; a client’s own values are unique circumstances.
Go deeper Emergency reserves for individuals
Individuals usually set aside an emergency fund in cash before taking risk with the rest. It is a liquidity cushion for unexpected events such as a health bill or a job loss. The size depends on income stability and obligations. It also raises the client’s ability to bear risk on the invested portfolio, because a market fall will not force a sale.
Go deeper Why institutions face the heaviest regulation
Banks, insurers and pension funds hold other people’s money and promise to pay it back. Regulators therefore set rules on asset mix, concentration and capital. Insurers and pension funds also have liabilities that drive liquidity needs, so their IPS constraints read very differently from an individual’s. The investor types are compared in the lesson on types of investors earlier in this topic.
Go deeper A concentrated holding with a low cost basis
A client who owns a large block of one stock bought long ago has two linked problems. Diversification says sell some of it; tax says a sale triggers a large capital gains bill because the cost basis is low. The IPS records both the concentration (unique circumstances) and the tax effect (tax concerns), and the manager weighs the tax cost against the risk of staying concentrated.
Memorize this
MemorizeThe five constraints and what they imply
| Constraint | Ask yourself | Implication for assets |
|---|---|---|
| Liquidity | What cash is needed, and when? | hold liquid, low-risk assets matched to the need; limit illiquid ones |
| Time horizon | How long until circumstances change? | longer horizon: more risk and illiquidity can be tolerated |
| Taxes | How are income and gains taxed? | judge after-tax returns; tax-efficient assets and accounts |
| Legal and regulatory | What rules apply? | caps on holdings; trading restrictions for insiders |
| Unique circumstances | What else is particular? | exclusions, concentrated holdings, custom benchmarks |
Memory hook Cash, Clock, Tax, Law, Me. A date with an amount is Cash. The life stages are the Clock.
Know it cold A known near-term outflow is liquidity (even a tax bill). Stages of life are time horizon. ESG and faith preferences are unique circumstances unless the law requires them.
MemorizeAfter-tax return
Memory hook Keep what the taxman leaves: multiply by (1 − tax rate).
Know it cold . A tax-exempt bond beats a taxable one when its yield exceeds .
- Liquidity requirements Memorize cash the client will need
- Expected needs tuition, a house deposit, a tax bill, benefit payments
- Unexpected needs emergencies, insurance claims
-
- Time horizon Memorize when the money is needed
- Single stage one goal, one date
- Multistage working years, then retirement
-
- Tax concerns Memorize how returns are taxed
- Taxable investor judge returns after tax; favor gains over income
- Tax-exempt investor indifferent to the form of return
-
- Legal and regulatory factors Memorize rules that apply to the investor
- Portfolio limits caps on equities, foreign assets, self-investment
- Trading restrictions insiders and material nonpublic information
-
- Unique circumstances Memorize anything else particular to the client
- Beliefs and values faith, environmental, social and governance (ESG) and ethical exclusions
- Concentrations employer shares, income tied to one industry
-
Quick example
A taxable bond yields 4.8% before tax; the investor’s tax rate on interest is 25%. 4.8% × (1 − 0.25) = 3.60%. A tax-free bond must yield more than this to win.
- 4.8×(1−0.25)= 3.6
- 4.8ENTER1ENTER0.25−× 3.6
ENTER enter (on the HP, puts the number on the stack)
How it is asked
-
Which constraint?
Client owes a GBP 64,000 income tax bill, due in four months, to be paid from the portfolio. Which constraint?
Liquidity (a dated cash need). Trap: tax concerns.
-
Describe the horizon
45-year-old works 20 more years, then lives off the portfolio. Time horizon?
Multistage (accumulation, then spending). Trap: single stage.
-
Ethical exclusion
Client asks to exclude companies that earn revenue from gambling. Where is it recorded?
Unique circumstances. Trap: legal and regulatory.
-
Compare after-tax yields
Taxable 6.0% bond, 38% tax rate, versus a 3.9% tax-free bond.
6.0 × 0.62 = 3.72%. The tax-free bond wins (3.9% > 3.72%).
Exam traps
- Classifying a known near-term outflow as a time-horizon item. It is liquidity, even when the outflow is a tax bill.
- Thinking a long horizon removes liquidity needs. A client with a 25-year horizon can still need cash in 18 months.
- Treating ESG or faith preferences as legal constraints. They are unique circumstances unless the law requires them.
Checkpoint
5 exam-style questions. About 90 seconds each.
1A client must settle a GBP 180,000 inheritance tax bill from the portfolio in eight months. This fact is most relevant to the IPS constraint of:
2A 45-year-old client plans to work for 20 more years and then live off the portfolio. The client's time horizon is best described as:
3A client asks that the portfolio exclude companies that derive revenue from gambling. This is most likely recorded under:
4A taxable investor can buy a bond yielding 5.00% before tax, taxed at 35%. The after-tax yield is closest to:
5A client is the chief financial officer of a listed retailer, and company rules and securities law bar her from trading its shares during blackout periods. This is most likely recorded under:
Key takeaways
- Liquidity, time horizon, taxes, legal and regulatory, unique circumstances.
- Near-term cash needs are liquidity; stages of life are time horizon.
- Taxable investors judge after-tax returns; tax-exempt investors are indifferent to income versus gains.
- Constraints narrow the assets you can hold. Record them in the IPS.
Quick example
A taxable bond yields 4.8% before tax; the investor’s tax rate on interest is 25%. 4.8% × (1 − 0.25) = 3.60%. A tax-free bond must yield more than this to win.
- 4.8×(1−0.25)= 3.6
- 4.8ENTER1ENTER0.25−× 3.6
ENTER enter (on the HP, puts the number on the stack)
All Portfolio Construction formulas, every lesson
Practice exam-style questions on Basics of Portfolio Planning and Construction
Questions about this lesson?
Where this comes back
- Asset classes, strategic asset allocation and portfolio construction Basics of Portfolio Planning and Construction
- ESG considerations in portfolio planning and construction Basics of Portfolio Planning and Construction
Questions candidates ask
What are the five IPS constraints?
Liquidity requirements, time horizon, tax concerns, legal and regulatory factors, and unique circumstances. Together they limit the assets and strategies available for the portfolio. Some come from the client (internal), others from law and regulation (external).
What is a multistage time horizon?
A horizon with several phases, each with different needs, for example 20 years of saving followed by 25 years of retirement spending. The portfolio's structure usually has to change at the end of each stage as the client begins to draw income.
Are ESG preferences an IPS constraint?
Yes, usually as unique circumstances, because they come from the client's values. They can exclude companies or sectors from the investable universe and the benchmark. They count as legal and regulatory only when a law or regulation requires them.
Spotted an error? Tell us and we will fix it.