Guide — Yield & Returns

Rental Yield Calculator: Gross & Net Yield Explained

Rental yield is the most-quoted metric in buy-to-let — and the most frequently misused. Gross yield and net yield tell you completely different things. Here is how to calculate both correctly, what counts as a good yield in different UK cities, and how stamp duty quietly erodes your returns.

Gross yield formula with worked examples

Gross yield is the starting point. It tells you the income return on a property before any costs are deducted. It is useful for quickly comparing investment opportunities — not for understanding whether a property is genuinely profitable.

Gross Yield = (Annual Rent ÷ Property Value) × 100

Or equivalently: (Monthly Rent × 12) ÷ Property Value × 100

Manchester flat

£1,050/month · £175,000 value

7.2%

gross yield

Leeds terrace

£850/month · £145,000 value

7%

gross yield

Liverpool semi

£750/month · £130,000 value

6.9%

gross yield

London (SE) flat

£1,800/month · £420,000 value

5.1%

gross yield

London (SW) flat

£2,200/month · £650,000 value

4.1%

gross yield

Net yield calculation

Net yield is the honest number. It subtracts all of the costs that actually erode your income: mortgage interest, letting agent fees, insurance, maintenance, and void periods.

Net Yield = (Annual Rent − Annual Costs) ÷ Property Value × 100

Worked example: Manchester flat at 7.2% gross

Annual rent (12 × £1,050)£12,600
Letting agent (12% inc. VAT)− £1,512
Landlord insurance− £320
Maintenance reserve (1%)− £1,750
Void allowance (3 weeks)− £727
Net annual income£8,291
Net yield4.7%

Note: mortgage interest excluded here. If you have a £130,000 mortgage at 5%, that is a further £6,500 in costs — turning this into a negative cashflow property before tax.

What counts as a good yield by UK region

“Good yield” is relative to property values in each market. In London, a 5% gross yield is considered solid. In Sunderland, you might demand 9% gross to justify the higher vacancy and management risk.

City / RegionTypical Gross YieldCapital Growth ProfileInvestor Profile
Liverpool7–9%ModerateHigh income, lower growth — suits cashflow investors
Manchester6–8%StrongBest of both — high yield and solid capital growth
Leeds6–7.5%Moderate-strongStrong student and professional demand
Birmingham5.5–7%Moderate-strongLarge market, lots of variability by area
Sheffield5.5–7%ModerateReliable yields, lower entry prices than Manchester
Bristol4.5–6%StrongStrong growth story, tighter yields than North
London (Outer)4.5–5.5%Strong long-termLow cashflow, high capital growth potential
London (Prime)3–4.5%Historically strongIncome-negative on leverage, capital preservation play

Indicative figures based on residential BTL market conditions. HMO, commercial, and short-let yields vary significantly.

Yield vs capital growth: which matters more?

This debate never gets old because the right answer depends entirely on your financial position, tax situation, and time horizon. Here is a clear framework:

Prioritise yield if…

  • You need the portfolio to generate income now
  • You are highly leveraged and cashflow is tight
  • You are a basic-rate taxpayer (Section 24 is less punishing)
  • You plan to hold properties for under 10 years

Prioritise capital growth if…

  • You have other income and do not need rent to live on
  • You are building long-term wealth for retirement
  • You are a higher-rate taxpayer (rental income is heavily taxed)
  • You want to refinance and pull equity out over time

Total return — the combination of income return and capital return — is always the right metric for comparing across markets. A Manchester property at 7% gross and 4% annual capital growth can outperform a London property at 4% gross and 6% capital growth on a 10-year, leveraged basis depending on your mortgage cost of capital.

How stamp duty reduces your effective yield

Since April 2025, second-home and BTL buyers pay a 5% stamp duty surcharge on top of standard rates. This is a significant upfront cost that most yield calculations fail to account for — and it meaningfully changes the economics, especially at lower price points.

Stamp duty impact on yield: £175,000 property

Purchase price£175,000
SDLT (BTL surcharge)£8,750
Legal fees + survey£2,500
Total cost basis£186,250
Monthly rent£1,050
Gross yield on purchase price7.2%
Gross yield on total cost basis6.8%

The difference between 7.2% and 6.8% gross yield matters most when you are close to the ICR threshold for a mortgage application. Always calculate yield on total cost basis (purchase price + SDLT + costs) rather than purchase price alone for a realistic picture.

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