Dubai Property ROI Calculator: Every Input Variable Explained (2026)

A Dubai property ROI calculator is only as honest as the inputs you feed it. The headline ROI number depends entirely on assumed vacancy, exit cap, and rent inflation — and these three inputs explain most of the gap between retail ROI predictions and actual outcomes. This is a walkthrough of every variable in a Dubai property ROI calculation, plus the sensitivity analysis that separates institutional from retail underwriting.

The input variables

Purchase price — contracted sale price.
Transaction costs — 6–8% on top of price. See the transaction cost breakdown.
Financing terms — LTV, rate, tenor. Determines monthly debt service and the equity-to-debt split.
Gross annual rent — achievable, not asking.
Rent inflation assumption — typically 3–5% per annum within RERA index caps.
Service charge per sqft per year — RERA Mollak data for the specific building.
Service-charge inflation — typically 3–6% per annum.
Vacancy — 5–8% for prime, 8–12% for value.
Maintenance reserve — 8–12% of gross rent.
Management fee — 0% self-managed, 5–8% outsourced.
Insurance — typically AED 800–2,500/year.
Capital growth assumption — 3–7% nominal CAGR for prime Dubai, 2–5% for value tier.
Holding period — typically 5, 7, or 10 years.
Exit cap rate — institutional convention is going-in cap + 50 bps.
Exit transaction costs — typically 2% agency fee on exit.

The return metrics explained

Net yield — annual net cash flow ÷ all-in cost basis. Unlevered. Year-by-year measure.

Cash-on-cash return — annual cash flow after debt service ÷ equity invested. Levered. Equity-investor measure.

IRR (Internal Rate of Return) — annualised return including all cash flows and exit proceeds. Captures both income and appreciation. Can be quoted unlevered or levered.

Equity multiple — total cash returned ÷ equity invested. Includes income and exit. Less time-sensitive than IRR.

Total ROI — total profit (income + capital gain) ÷ initial investment. Simple but ignores time value.

The compounding effect

A 5% yield held for 10 years with reinvested cash and 6% capital growth doesn't sum to 50% + 60% = 110%. Compounded, it lands closer to 130–140% total return. Always compound.

Worked example: AED 1.8M Marina 1BR, 60% leverage, 10-year hold

Inputs (base case):

Price AED 1.8M + 7% transaction = AED 1.926M all-in
Equity AED 720k (40%) + loan AED 1.08M (60% LTV)
Mortgage 4.49% fixed 5-year then variable; 25-year tenor
Gross rent year 1 AED 105k, inflating 4%/year
Service charge AED 14,400 year 1, inflating 5%/year
Vacancy 7%, maintenance 10% of gross, mgmt 6%, insurance AED 1,200
Capital growth 6% nominal CAGR
Exit at year 10 at 6.5% cap (vs 5.83% going-in)

Output (base case, indicative):

Year 1 net cash flow after debt service: ~AED 5–10k (very thin)
Year 10 net cash flow after debt service: ~AED 25–35k
Exit value at year 10: AED 3.22M, less 2% exit commission, less remaining loan balance
Total equity returned: ~AED 1.95M
Equity multiple: ~2.7x
Levered IRR: ~12–14%
Unlevered IRR: ~7–9%

Sensitivity analysis

Run three scenarios:

Base — as above.
Upside — capital growth +2%, exit cap -50 bps, rent inflation +1%.
Downside — capital growth -3%, exit cap +100 bps, rent inflation -1%, EIBOR +200 bps.

Levered IRR typical spread across scenarios: downside 4–6%, base 12–14%, upside 18–22%. The downside scenario should still meet your hurdle.

Common ROI-calculator errors

No vacancy assumption. Defaulting to 100% occupancy overstates net by 5–10%.
Flat service charge. Service charges drift 4–8% annually. Inflate.
Flat exit cap. Institutional convention is +50 bps from going-in.
Ignoring transaction costs at exit. 2% agency on exit is real.
Levered IRR quoted without rate-reset modeling. Year 6+ EMI jumps materially when fixed period expires.
Single-scenario underwriting. Never reliable.
Using gross yield as proxy for return. Gross yield ignores costs and exit.

Practical next steps

Run the base case on REMAP's Dubai ROI calculator.
Run upside and downside scenarios. Subscribe to one number and you'll be wrong.
Layer in your home-country tax for foreign-investor scenarios — see country guides like the Australian investor guide.
For institutional underwriting, use the framework in our IRR/cap rate/DSCR guide.
Sensitize on vacancy, exit cap, and rate path — those three explain most of the model variance.