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A Landlord’s Guide to Calculating Rental Yield and Boosting Returns

by
October 4, 2025

Investing in property has long been seen as one of the most reliable ways to generate wealth, but ensuring that a buy-to-let investment delivers a healthy return is not always straightforward. For landlords, one of the most important measures of success is rental yield.

Rental yield not only helps you understand the profitability of your property but also provides valuable insights when comparing potential investments. Whether you are a first-time landlord or already managing a portfolio, understanding how to calculate rental yield—and how to boost it—can make a huge difference to your financial outcomes.

In this guide, we’ll break down how rental yield works, explore common misconceptions, and share practical ways to maximise your returns. For tailored advice, many landlords also turn to professionals such as estate agents in Plymouth, who can provide local expertise and rental market insights.

What Is Rental Yield?

Rental yield is a percentage figure that shows how much rental income a property generates compared to its purchase price or current value. In simple terms, it answers the question: How much return am I getting on my investment?

There are two main types of rental yield:

  • Gross rental yield – This is calculated using annual rental income before expenses are deducted.
  • Net rental yield – This takes into account costs such as mortgage repayments, maintenance, insurance, and letting agent fees.

While gross yield provides a quick snapshot, net yield gives a more accurate picture of actual profitability.

Myth 1: “A High Rental Yield Is Always a Good Thing”

It’s tempting to assume that the higher the rental yield, the better the investment.

The reality: High yields can sometimes be misleading. Properties with exceptionally high yields may be in less desirable areas, face higher tenant turnover, or come with higher maintenance costs. Conversely, properties in prime locations may offer lower yields but deliver more consistent long-term growth in capital value.

The key is to balance rental yield with factors like tenant demand, location, and long-term appreciation.

Myth 2: “Rental Yield Is the Only Metric That Matters”

Some landlords focus solely on yield when evaluating an investment.

The reality: Rental yield is important, but it’s not the only measure of success. Capital growth—the increase in the property’s value over time—can be equally significant. A property with a modest rental yield may still be a great investment if it’s in an area experiencing strong growth.

This is where local knowledge becomes vital. For example, estate agents in Plymouth can highlight neighbourhoods where rental demand is high and values are steadily rising, giving landlords the best of both worlds.

How to Calculate Rental Yield

The formula for gross rental yield is:

(Annual rental income ÷ Property value) × 100

For example:

  • If you buy a property for £200,000 and rent it out for £1,000 per month (£12,000 per year), the gross yield is:
     (12,000 ÷ 200,000) × 100 = 6%

To calculate net rental yield, deduct annual expenses (such as mortgage interest, maintenance, and insurance) from rental income, and then divide by the property’s value.

Common Expenses That Affect Yield

When calculating net rental yield, it’s important to consider the full range of costs, including:

  • Mortgage repayments (if applicable)
  • Maintenance and repairs
  • Insurance
  • Service charges or ground rent (for leasehold properties)
  • Letting agent fees
  • Void periods (times when the property is empty)

Factoring in these costs provides a far more realistic picture of profitability.

Myth 3: “Rental Yield Is Static and Doesn’t Change”

Some landlords believe that once they’ve calculated yield, the figure will remain fixed.

The reality: Rental yield can change over time due to shifts in property value, rent levels, or expenses. For example:

  • If property prices rise but rental income stays the same, yield decreases.
  • If you successfully increase rent or reduce costs, yield improves.

Regularly reviewing your rental yield ensures you stay on top of market changes and can make adjustments where necessary.

Ways to Boost Rental Yield

Maximising yield is not just about buying at the right price—it’s also about smart management. Here are some strategies:

1. Improve the Property

Small upgrades such as modern kitchens, bathrooms, or energy-efficient features can justify higher rent and attract long-term tenants.

2. Reduce Void Periods

Keeping your property occupied is one of the simplest ways to improve yield. Building good relationships with tenants and maintaining the property well reduces the risk of frequent vacancies.

3. Review Rent Regularly

Staying in touch with local market trends allows you to adjust rent in line with demand. Working with estate agents in Plymouth can give you access to up-to-date rental valuations.

4. Manage Costs

Keeping maintenance costs under control and reviewing service providers regularly (e.g., insurance or property management) can help maintain profitability.

5. Consider Furnished Lettings

In some areas, offering furnished accommodation can justify higher rent, particularly in student or short-term rental markets.

Myth 4: “You Don’t Need Professional Help to Improve Yield”

Many landlords believe they can handle everything themselves and still achieve the best possible return.

The reality: While some landlords manage properties successfully on their own, others benefit greatly from expert input. Local estate agents and letting agents bring market knowledge, handle tenant screening, manage maintenance, and ensure compliance with regulations—all of which can contribute to stronger yields and reduced stress.

The Role of Location

Perhaps the single most important factor in determining yield is location. Rental demand, tenant demographics, and property values can vary significantly from one area to another.

For instance, a property near good schools, universities, or transport links may command higher rent and experience lower vacancy rates. Local professionals, such as estate agents in Plymouth, can advise on the best-performing areas and help landlords make informed decisions.

Conclusion

Calculating rental yield is one of the most valuable tools in a landlord’s arsenal, but it should never be viewed in isolation. A strong rental yield can indicate profitability, but long-term capital growth, location, and effective property management are equally important.

By understanding how to calculate both gross and net yield, factoring in expenses, and making smart choices to improve returns, landlords can maximise the potential of their investment. And with the guidance of knowledgeable professionals such as estate agents in Plymouth, it’s possible to strike the right balance between immediate rental income and long-term property value growth.

Whether you’re just starting your journey as a landlord or looking to optimise an existing portfolio, focusing on rental yield and boosting returns will ensure your investment remains both profitable and sustainable.