# Income Capitalisation & DCF

> Component slug: `valuation-income-capitalisation`. Researched: `2026-05-18T03:00:00Z`. Sources cited: `12`. Token usage: `~44000`.

## 1. Summary (≤3 sentences)

The income capitalisation approach comprises two complementary valuation methods: (1) **direct capitalisation** (implicit), which divides a stabilised Net Operating Income (NOI) by a market-derived capitalisation rate to produce a point-in-time value; and (2) **multi-period DCF** (explicit), which projects annual cash flows and a terminal residual value over a holding period then discounts them to present value using a required rate of return. Both methods are recognised under IVS 105, the RICS Red Book (effective January 2025), and the Australian Property Institute's mandatory valuation standards — direct capitalisation suits stabilised assets, while DCF is preferred for assets with variable or non-stabilised income profiles. In the AU/Vic context, cap rates peaked across all three core asset classes during 2024–2025 and are entering a compression cycle driven by declining bond yields, making rigorous cap rate selection from comparable evidence and robust DCF sensitivity testing critical.

## 2. Key Concepts

- **Potential Gross Income (PGI)** [ref: #19] — Theoretical 100%-occupied rental income at market or contract rents; the starting point for income build-up before any deductions.
- **Effective Gross Income (EGI)** [ref: #7, #13] — PGI minus vacancy and credit loss allowance (typically 5% for stable AU commercial assets) plus ancillary income (parking, signage, storage).
- **Net Operating Income (NOI)** [ref: #1, #2, #12] — EGI minus operating expenses borne by the landlord (council rates, land tax, insurance, property management, maintenance, utilities). Excludes debt service, capital expenditure, depreciation, and income taxes.
- **Capitalisation Rate (Cap Rate)** [ref: #1, #12] — Ratio of stabilised NOI to property value; the all-risks yield expressing the unlevered annual return if purchased for all cash.
- **Going-In Cap Rate** [ref: #21] — Entry yield at acquisition: Year 1 NOI ÷ purchase price; reflects current market conditions.
- **Exit Cap Rate (Terminal / Reversion Cap Rate)** [ref: #8, #9] — Projected cap rate applied to terminal-year NOI to estimate resale value at end of the holding period; typically set 25–75 basis points above the going-in rate.
- **Discount Rate (Required Rate of Return)** [ref: #6, #8] — Forward-looking total-return hurdle used to discount future cash flows to present value; reflects risk-free rate plus risk premia; conceptually distinct from, and typically higher than, the cap rate.
- **Terminal Value (Residual Value)** [ref: #3, #8] — Estimated sale price at end of hold period; calculated as NOI(year n+1) ÷ exit cap rate; typically represents 60–80% of total DCF value.
- **Band of Investment** [ref: #19] — A cap rate derivation technique that blends mortgage component (mortgage constant × LTV ratio) and equity component (equity dividend rate × equity ratio) into a weighted average overall rate.
- **Stabilised NOI** [ref: #19] — The sustainable, recurring NOI assuming normalised occupancy; the required and correct input for direct capitalisation. Excludes one-time or temporary items.
- **Market Rent vs. Passing Rent** [ref: #19] — Where a lease runs above (over-rent) or below (reversionary rent) market, direct capitalisation on passing rent misrepresents value; a term-and-reversion or DCF sub-model is required.

## 3. Methodology / Formulas / Process

### 3.1 Income Build-Up: PGI → EGI → NOI

```
Potential Gross Income (PGI)         [market or contract rent × NLA]
  – Vacancy & Credit Loss Allowance  [typically 5% AU commercial]
  + Miscellaneous Income             [parking, signage, etc.]
= Effective Gross Income (EGI)
  – Operating Expenses               [council rates, land tax, insurance, mgmt, maintenance]
= Net Operating Income (NOI)
```

Operating expenses typically represent 30–50% of EGI depending on property type and lease structure (gross vs. net lease). [ref: #15]

**Critical exclusions from NOI**: mortgage payments, interest expense, capital expenditure, depreciation, income taxes. These are financing and investment decisions, not property operating performance. [ref: #2, #12]

### 3.2 Direct Capitalisation Method

```
Value = Stabilised NOI ÷ Capitalisation Rate
```

**Worked example** [ref: #13]:
- Gross rental income: $120,000
- Operating expenses: $30,000
- NOI: $90,000
- Market cap rate: 6%
- **Value = $90,000 ÷ 0.06 = $1,500,000**

**Value sensitivity**: At a 5% cap rate, a $10,000 change in NOI moves value by $200,000; at 6% it moves value by $167,000. Small NOI and cap rate errors compound severely. [ref: #19]

### 3.3 Cap Rate Derivation — Three Methods

**Method 1 — Comparable Sales Extraction (primary, preferred)** [ref: #19]:
1. Identify 3–5 recent arm's-length sales of similar asset type, submarket, grade, and lease profile — ideally within 12 months.
2. For each comparable: compute implied cap rate = Sale NOI ÷ Sale Price.
3. Adjust for differences in location, lease expiry, building quality, tenancy covenant.
4. Reconcile to a point estimate for the subject property.

**Method 2 — Band of Investment** [ref: #19]:
```
Overall Rate = (Mortgage Constant × LTV) + (Equity Dividend Rate × Equity Ratio)
```

**Method 3 — Market Surveys** [ref: #4, #5]:
Published benchmarks from CBRE, JLL, Cushman & Wakefield, KPMG, and Altus Group provide sector and geography-level ranges as a cross-check.

### 3.4 DCF Method — Step-by-Step

**Step 1: Determine holding period** — typically 5–10 years for institutional assets [ref: #15]

**Step 2: Project annual NOI for each year**
- Base income: current market rent × NLA × (1 – vacancy rate)
- Rent growth: contractual escalation clauses; market rent review forecasts (CPI-linked, fixed %, market review)
- Vacancy rate: phased assumptions where leases expire
- Operating expense inflation: typically ~2.5–3% p.a.
[ref: #2, #3]

**Step 3: Calculate terminal value** [ref: #3, #8]

Primary method — Exit Cap Rate:
```
Terminal Value = NOI(year n+1) ÷ Exit Cap Rate
```

Alternative — Gordon Growth (Perpetuity) Model:
```
Terminal Value = NOI(final year) × (1 + g) ÷ (Discount Rate – g)
```
Where g = long-run sustainable NOI growth rate (~2.5–3%).

**Step 4: Discount all cash flows to present value** [ref: #14]
```
PV = Σ [ CF_t ÷ (1 + r)^t ] + [ TV ÷ (1 + r)^n ]
```

**Step 5: Sum all PVs** — this is the indicated property value under the DCF method.

**Step 6: Sensitivity analysis** (see §3.6)

### 3.5 Discount Rate Derivation

Build-up approach [ref: #18]:
```
Risk-Free Rate                    (10-yr AU Government Bond yield: ~4.0–4.5% in 2024–25)
+ Property Risk Premium           (1.5–3.5%)
+ Illiquidity Premium             (0.5–1.0%)
+ Property-Specific Premium       (0–2%)
──────────────────────────────────────────────────
= Discount Rate:                  typically 7–12%
```

**1% change in discount rate shifts DCF valuation by 10–20%.** [ref: #14]

**Critical distinction — Cap Rate ≠ Discount Rate**: The cap rate is a point-in-time income yield; the discount rate is a total-return hurdle incorporating expected income growth and capital appreciation. Conflating the two is a fundamental valuation error. [ref: #20]

### 3.6 Exit Cap Rate Setting

Exit cap rate = entry (going-in) cap rate + premium for hold period [ref: #21]:
- **5-year hold**: typically +25–50 bps above going-in
- **7–10-year hold**: typically +50–75 bps above going-in

### 3.7 Sensitivity Analysis Dashboard

Standard two-way sensitivity table [ref: #20]:

|  | Exit Cap −50 bps | Base Exit Cap | Exit Cap +50 bps |
|--|--|--|--|
| Vacancy −2% | IRR / NPV — optimistic | ↑ | |
| Base vacancy | | **Base case** | |
| Vacancy +2% | | ↓ | IRR / NPV — pessimistic |

**A 50 bps error in exit cap rate on a $10M property ≈ ±$1.2M valuation impact.** [ref: #20]

### 3.8 IVS / RICS / API Standards

- **IVS 105 §50.2**: The income capitalisation method may apply using either the cap rate model or DCF; forecasted cash flows discounted to valuation date. [ref: #22]
- **RICS Red Book (December 2024)**: Encourages explicit DCF methods.
- **Australian Property Institute**: Adopted IVS; mandatory compliance for API Members. [ref: #23]

## 4. Tools & Libraries

| Name | Type | Link | Notes | [ref] |
|---|---|---|---|---|
| ARGUS Enterprise | CRE DCF software | altusgroup.com | Industry standard; institutional-grade DCF modelling | [#6] |
| ARGUS EstateMaster | Development / hold DCF | altusgroup.com | AU-specific; widely used by AU valuers and developers | [#6] |
| CoreCast | DCF automation platform | corecastre.com | Market data integration, automated sensitivity analysis | [#3] |
| Excel NPV() | Spreadsheet function | microsoft.com | Standard implementation for DCF calculation | [#2] |
| CBRE AU Cap Rate Outlook | Market data | cbre.com.au/insights | Quarterly AU cap rate benchmarks by sector | [#4] |
| KPMG Commercial Property Update | Market data | kpmg.com.au | Quarterly AU sector returns and cap rates | [#5] |
| API Valuation Protocols | Standards / guidance | api.org.au/standards | AU mandatory valuation standards | [#11] |
| RICS Red Book | Global standards | rics.org | IVS incorporation; DCF guidance standard | [#10] |

## 5. Case Studies / Examples

### Example A: Direct Capitalisation — Melbourne Metro Industrial

Inputs:
- Net face rent: $110/m² × 2,000 m² NLA = $220,000 gross rent
- Vacancy allowance 5%: EGI = $209,000
- Outgoings (landlord portion): $25,000 → NOI = $184,000
- Comparable market cap rate: **5.4%** (Melbourne metro industrial, December 2025) [ref: #17]

```
Value = $184,000 ÷ 0.054 = $3,407,407
```

### Example B: DCF — Melbourne Suburban Office, 5-Year Hold

Inputs:
- Year 1 NOI: $500,000; rent growth 2.5% p.a.
- Stabilised vacancy: 10%
- Discount rate: 9% (value-add profile)
- Going-in cap rate: 6.25%; exit cap rate: 6.75% (+50 bps for 5-year hold)
- Year 6 NOI (terminal): ~$567,400 × 1.025 = $581,585

```
Terminal Value = $581,585 ÷ 0.0675 = $8,616,074
PV of Years 1–5 cash flows (at 9%): ~$1,940,000
PV of Terminal Value: $8,616,074 ÷ (1.09)^5 = ~$5,597,000
Indicated Value ≈ $7,537,000
```

## 6. Pitfalls & Gotchas

1. **Using unstabilised NOI in direct capitalisation**: The method assumes perpetual, stabilised income. Using lease-up income, above-market incentive contributions, or temporary income overstates value. [ref: #19]
2. **Conflating cap rate and discount rate**: A 5% cap rate does NOT imply a 5% discount rate — they are conceptually distinct. [ref: #20]
3. **Including one-time items in NOI**: Lease surrender fees, insurance proceeds, and non-recurring items must be excluded. [ref: #19]
4. **Passing rent vs. market rent mismatch**: Where a lease is significantly above or below current market rent, capitalising passing rent without adjustment misrepresents value. [ref: #19]
5. **Terminal value dominance in DCF**: Terminal value constitutes 60–80% of total DCF valuation. The exit cap rate assumption deserves the most scrutiny. [ref: #3, #8]
6. **Optimistic rent growth in DCF**: Assuming 3% rent growth instead of 2% on a $3M commercial property at 5% cap rate adds ~$600,000 in implied value. [ref: #15]
7. **Thin market risk in cap rate selection**: In secondary or regional markets, using published metro averages without adjustment introduces systematic mispricing. [ref: #19]
8. **Discount rate sensitivity not stress-tested**: A 1 percentage-point change in discount rate shifts DCF valuation by 10–20%. Sensitivity tables are not optional. [ref: #18]