Gross Yield vs Net Yield: What UK Property Investors Need to Know

2026-06-11

The Most Dangerous Number in Property Investing

When someone tells you a property "yields 7%," they almost certainly mean gross yield. And gross yield is the most misleading number in property investing. It ignores mortgage payments, management fees, insurance, maintenance, voids, and every other cost between collecting rent and keeping profit.

A property yielding 7% gross can easily net 2% — or go negative. The difference between gross and net yield is the gap between how a deal looks and how a deal performs. Understanding that gap is the difference between building wealth and slowly losing it.

How to Calculate Gross Yield

Gross yield = (Annual rent ÷ Property value) × 100

That's it. No costs deducted. Just rent divided by price. On a £200,000 property renting at £950/month: (£11,400 ÷ £200,000) × 100 = 5.7% gross yield.

Gross yield is useful for one thing only: quickly screening properties to decide which ones deserve a full analysis. If the gross yield is below 5%, the property is very unlikely to cash-flow positively with a mortgage. Above 7%, it's worth a detailed look. Between 5-7%, it might work — run the numbers.

That's the limit of its usefulness. Never buy based on gross yield alone.

How to Calculate Net Yield

Net yield = (Annual cash flow ÷ Property value) × 100

Where annual cash flow = Annual rent - All annual costs - Void cost

Annual costs include:

• Mortgage payments (the largest single cost for leveraged investors)
• Management fees (8-12% of rent if using an agent)
• Insurance (buildings + landlord contents)
• Maintenance and repairs (budget 8-10% of rent)
• Ground rent and service charge (leasehold properties)
• Accounting and compliance costs
• Void periods (typically 4-8% of annual rent)

Worked Example

£200,000 property, £950/month rent, 75% LTV mortgage at 5%:

• Annual rent: £11,400
• Mortgage (£150k at 5% interest-only): -£7,500
• Management (10%): -£1,140
• Insurance: -£300
• Maintenance (8%): -£912
• Accounting: -£240
• Void (1 month): -£950
• Annual cash flow: £358
• Net yield: 0.18%

The gross yield was 5.7%. The net yield is 0.18%. That's a 97% reduction. The property barely breaks even after all costs.

Why the Gap Is So Large

Three factors drive the gap between gross and net yield:

1. Mortgage Interest

For leveraged investors (which is most of us), the mortgage payment is typically 60-75% of the gross rent. In the example above, the mortgage alone consumes 65.8% of the rent. This is by far the biggest factor.

Cash buyers don't have this cost, which is why cash-bought properties have much higher net yields. A property that nets 0.18% with a mortgage nets around 4.2% without one. But cash buyers sacrifice leverage — their total return (yield + capital growth on a percentage basis) is lower because they've deployed five times more capital.

2. Management and Maintenance

Together, management and maintenance typically consume 16-22% of gross rent. On £950/month, that's £152-£209/month before you see any profit. Self-managing eliminates the management fee but introduces your time as a cost.

3. Voids

An empty property earns nothing but still costs you the mortgage, insurance, and council tax. One month's void wipes out nearly three months of net cash flow in our example. Two months' void makes the deal loss-making for the year.

What Is a Good Net Yield?

In the current interest rate environment (base rate 4.5%, BTL rates 4.5-6%):

• Below 0%: Loss-making. The property costs you money every month. Only justified if you're betting heavily on capital growth
• 0-2%: Break-even territory. Survivable but offers no cash return. You're holding for growth
• 2-4%: Good. Genuinely cash-flow positive after all costs. Sustainable long-term
• 4%+: Excellent. Strong cash flow. Usually found in higher-yielding areas or with below-market-value purchases

These ranges assume 75% LTV. Higher leverage compresses net yield. Lower leverage (or cash purchase) expands it.

The Yield Trap: High Gross, Negative Net

Some properties advertise 8-10% gross yields in areas with low capital values. A £60,000 terrace renting at £500/month shows a 10% gross yield. Looks incredible.

But dig into the costs: higher management fees (agents charge more in percentage terms for lower rents), higher maintenance on cheaper, older properties, higher void rates in less desirable areas, and higher insurance premiums. The 10% gross can easily net 1-2% — not much better than a "boring" 5.5% gross yield property in a better area that nets 2.5% with lower risk.

Never chase gross yield. Chase net yield, cash flow, and total return.

How to Improve Net Yield on a Deal

• Negotiate a lower purchase price — every £5,000 off the price improves yield without changing any costs
• Reduce mortgage cost — shop for the best rate, consider a higher deposit to access lower LTV bands
• Self-manage — saves 10% of rent immediately, but costs your time
• Reduce voids — competitive pricing, good property condition, and responsive management reduce empty periods
• Add value — an extra bedroom or en-suite can increase rent by 15-20% for a one-time capital cost

Always Calculate Both

Use gross yield to screen. Use net yield to decide. Any property listing, any agent's pitch, any forum post that only quotes gross yield is giving you half the picture. The half that makes the deal look better than it is.

Run the full calculation. The net yield tells you what you'll actually earn. Everything else is marketing.