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Financial Pressures on Buy-to-Let Landlords

As a BTL landlord, after making your initial investment, you expect to receive a stream of net positive cashflows throughout the life of the investment and capital gains from an appreciation in the value of the property when you eventually sell it.

4/8/2025By Aivanaa Maraea · Co-Founder
Financial Pressures on Buy-to-Let Landlords

Many buy-to-let (“BTL”) landlords are facing severe financial pressures today. The underlying factors generating these pressures are:

  • a dramatic rise in mortgage rates,
  • stagnant rental incomes, and
  • weak property price appreciation.

This article sets out a BTL investment “Base Case” and considers the impact of the different sources of financial pressure.

Base Case

A typical BTL investment involves:

  • an initial equity investment to fund part of the BTL property’s acquisition cost, with the remaining funds raised through an interest-only mortgage;  
  • thereafter, ongoing cashflows based on rental income minus operating expenses, interest costs and taxes; and
  • net proceeds from the eventual sale of the property.

As a BTL landlord, after making your initial investment, you expect to receive a stream of net positive cashflows throughout the life of the investment and capital gains from an appreciation in the value of the property when you eventually sell it.  

Overall, you might expect to make a c. 11% per annum return on your equity investment, also known as the “internal rate of return” or “IRR”. In simple terms, this is the equivalent of investing £100 of equity upfront and, assuming an investment horizon of five years and no interim receipts, realizing net proceeds of c. £169 at the end of five years (calculated as £100 x (1.11^5)).

The BTL investment Base Case is set out in more detail below:

Item

Assumptions

t0
(start)

t1
(year 1 end)

t2
(year 2 end)

t3
(year 3 end)

t4
(year 4 end)

t5
(year 5 end)

IRR

1

Property purchase price

850,000

2

Stamp Duty Land Tax ("SDLT")

55,500

3

Conveyancing and valuation expenses

3,000

4

Total cost of acquiring property

908,500

5

Equity investment by landlord

333,500

6

Interest only mortgage

575,000

7

5-year fixed mortgage rate

1.7%

1.7%

1.7%

1.7%

1.7%

8

Annual property price appreciation

10.0%

10.0%

10.0%

10.0%

10.0%

9

Property price

935,000

1,028,500

1,131,350

1,244,485

1,368,934

10

Loan-to-value ratio

67.6%

61.5%

55.9%

50.8%

46.2%

42.0%

11

Gross rental yield

4.0%

4.0%

4.0%

4.0%

4.0%

12

Annual insurance and maintenance inflation

5.0%

5.0%

5.0%

5.0%

13

Annualised cashflows

14

Annual rental income

34,000

37,400

41,140

45,254

49,779

15

Annual letting commission

-4,488

-4,937

-5,430

-5,974

-6,571

16

Annual management fee

-2,448

-2,693

-2,962

-3,258

-3,584

17

Annual service charge

-3,000

-3,150

-3,308

-3,473

-3,647

18

Annual insurance and maintenance costs

-800

-840

-882

-926

-972

19

Gross profit before interest

23,264

25,780

28,558

31,623

35,005

20

Annual interest

-9,775

-9,775

-9,775

-9,775

-9,775

21

Cashflow after interest

13,489

16,005

18,783

21,848

25,230

22

Tax @ 20% on gross profit after deduction of 20% of interest

-4,262

-4,765

-5,321

-5,934

-6,610

23

Cashflow after interest and tax

9,227

11,240

13,462

15,915

18,620

24

Property sale price

1,368,934

25

less Interest only mortgage

-575,000

26

less Selling commission (3.6%)

-49,282

27

less Solicitor's fee

-3,000

28

Equity proceeds

741,652

29

Equity proceeds less initial SDLT and conveyancing and valuation expenses

683,152

30

Capital gains tax (“CGT”) @ 28%

-191,283

31

Equity proceeds after CGT

491,869

32

BTL landlord's net cashflows

-333,500

9,227

11,240

13,462

15,915

510,490

11.5%

The IRR of 11.5% under the Base Case is predicated on some fundamental assumptions, which were broadly realistic for some parts of London until about five years ago.

Size of interest only mortgage

Under the Base Case, the purchase price of the property of £850,000 (Item 1) is funded in part by an interest only mortgage of £575,000 (Item 6), with an initial loan-to-value ratio (“LTV”) of 67.6% (Item 10) and an initial interest rate of 1.7% (Item 7).  

If the level of borrowing was higher, say £775,000 (at 91.2% LTV) instead of £575,000 (at 67.6% LTV), all other things being equal, the amount of initial equity investment required from the BTL landlord would be lower, £133,500 instead of £333,500, and the expected IRR would increase from 11.5% to 26.2%. Mortgage lenders, however, usually do not allow an initial LTV of more than 60% - 70% and BTL landlords, therefore, typically have no choice but to invest c. 30% - 40% of the upfront investment cost as their own equity.  

If, on the other hand, the level of borrowing was reduced to, say, £375,000 (at 44.1% LTV) instead of £575,000 (at 67.6% LTV), all other things being equal, the amount of the BTL landlord’s initial equity investment would increase from £333,500 to £533,500 and the IRR would decrease from 11.5% to 6.5%.  

This demonstrates how a BTL landlord’s equity investment would not have been financially worthwhile without the availability of substantial levels of borrowing, even if this is usually capped at 60% - 70% LTV by BTL lenders.

Mortgage rates

However, the Base Case also assumes a benign mortgage rate of 1.7%, which was the reality for mortgage borrowers, including BTL landlords, for a prolonged period, from c. early-2009 until as recently as November 2021.  

However, mortgage rates have increased dramatically since November 2021 to a c. 6% level today, creating enormous financial pressure on BTL landlords.  

Revised Base Case

The Revised Base Case set out below demonstrates how the increase in the mortgage rate has led to almost catastrophic ongoing negative cashflows for BTL landlords, while also lowering the IRR to 5.4% (if, that is, BTL landlords are able and willing to inject further equity funds into their BTL investment and fight on for five years in the example below).  

Item

Assumptions

t0
(start)

t1
(year 1 end)

t2
(year 2 end)

t3
(year 3 end)

t4
(year 4 end)

t5
(year 5 end)

IRR

1

Property purchase price

850,000

2

Stamp Duty Land Tax ("SDLT")

55,500

3

Conveyancing and valuation expenses

3,000

4

Total cost of acquiring property

908,500

5

Equity investment by landlord

333,500

6

Interest only mortgage

575,000

7

5-year fixed mortgage rate

6.0%

6.0%

6.0%

6.0%

6.0%

8

Annual property price appreciation

10.0%

10.0%

10.0%

10.0%

10.0%

9

Property price

935,000

1,028,500

1,131,350

1,244,485

1,368,934

10

Loan-to-value ratio

67.6%

61.5%

55.9%

50.8%

46.2%

42.0%

11

Gross rental yield

4.0%

4.0%

4.0%

4.0%

4.0%

12

Annual insurance and maintenance inflation

5.0%

5.0%

5.0%

5.0%

13

Annualised cashflows

14

Annual rental income

34,000

37,400

41,140

45,254

49,779

15

Annual letting commission

-4,488

-4,937

-5,430

-5,974

-6,571

16

Annual management fee

-2,448

-2,693

-2,962

-3,258

-3,584

17

Annual service charge

-3,000

-3,150

-3,308

-3,473

-3,647

18

Annual insurance and maintenance costs

-800

-840

-882

-926

-972

19

Gross profit before interest

23,264

25,780

28,558

31,623

35,005

20

Annual interest

-34,500

-34,500

-34,500

-34,500

-34,500

21

Cashflow after interest

-11,236

-8,720

-5,942

-2,877

505

22

 Tax @ 20% on gross profit after deduction of 20% of interest

-3,273

-3,776

-4,332

-4,945

-5,621

23

Cashflow after interest and tax

-14,509

-12,496

-10,274

-7,821

-5,116

24

Property sale price

1,368,934

25

less Interest only mortgage

-575,000

26

less Selling commission (3.6%)

-49,282

27

less Solicitor's fee

-3,000

28

Equity proceeds

741,652

29

 Equity proceeds less initial SDLT and conveyancing and valuation expenses

683,152

30

CGT @ 28%

-191,283

31

Equity proceeds after CGT

491,869

32

BTL landlord's net cashflows

-333,500

-14,509

-12,496

-10,274

-7,821

486,754

5.4%

The reality for many BTL landlords is that they have little choice but to exit their now disastrous BTL investments by resorting to distress sales of their BTL properties.  

Pauzible

Pauzible may be able to provide an alternative solution to distress sales by covering the increase in interest costs facing BTL landlords for a period of up to five years, in return for a fair share in the value of their properties.

Rental income

While mortgage rates have risen dramatically since November 2021, rents in parts of London have been stagnant for the last 3 – 5 five years and have, indeed, started to decline slightly in recent months. ONS data suggests however that landlords in most other parts of the country have managed to pass on some or all of the increased mortgage costs to tenants by increasing rents which have jumped 6.2% on average1.

This factor naturally puts even further financial pressure on BTL landlords.  

If, as compared to a gross rental yield of 4% under the Revised Base Case above, we were to assume a lower gross rental yield of 3%, all other things being equal, this would result in even worse negative cashflows and even lower IRR (if, that is, the BTL landlord is able to hold on for five years):

Item

Assumptions

t0
(start)

t1
(year 1 end)

t2
(year 2 end)

t3
(year 3 end)

t4
(year 4 end)

t5
(year 5 end)

IRR

1

Property purchase price

850,000

2

Stamp Duty Land Tax ("SDLT")

55,500

3

Conveyancing and valuation expenses

3,000

4

Total cost of acquiring property

908,500

5

Equity investment by landlord

333,500

6

Interest only mortgage

575,000

7

5-year fixed mortgage rate

6.0%

6.0%

6.0%

6.0%

6.0%

8

Annual property price appreciation

10.0%

10.0%

10.0%

10.0%

10.0%

9

Property price

935,000

1,028,500

1,131,350

1,244,485

1,368,934

10

Loan-to-value ratio

67.6%

61.5%

55.9%

50.8%

46.2%

42.0%

11

Gross rental yield

3.0%

3.0%

3.0%

3.0%

3.0%

12

Annual insurance and maintenance inflation

5.0%

5.0%

5.0%

5.0%

13

Annualised cashflows

14

Annual rental income

25,500

28,050

30,855

33,941

37,335

15

Annual letting commission

-3,366

-3,703

-4,073

-4,480

-4,928

16

Annual management fee

-1,836

-2,020

-2,222

-2,444

-2,688

17

Annual service charge

-3,000

-3,150

-3,308

-3,473

-3,647

18

Annual insurance and maintenance costs

-800

-840

-882

-926

-972

19

Gross profit before interest

16,498

18,338

20,371

22,618

25,099

20

Annual interest

-34,500

-34,500

-34,500

-34,500

-34,500

21

Cashflow after interest

-18,002

-16,162

-14,129

-11,882

-9,401

22

 Tax @ 20% on gross profit after deduction of 20% of interest

-1,920

-2,288

-2,694

-3,144

-3,640

23

Cashflow after interest and tax

-19,922

-18,450

-16,823

-15,026

-13,040

24

Property sale price

1,368,934

25

less Interest only mortgage

-575,000

26

less Selling commission (3.6%)

-49,282

27

less Solicitor's fee

-3,000

28

Equity proceeds

741,652

29

 Equity proceeds less initial SDLT and conveyancing and valuation expenses

683,152

30

CGT @ 28%

-191,283

31

Equity proceeds after CGT

491,869

32

BTL landlord's net cashflows

-333,500

-19,922

-18,450

-16,823

-15,026

478,829

3.8%

Property prices

Property prices have stagnated in parts of London over the last 3 - 5 years and are not expected to appreciate at anything like the high historic rates of c. 10% per annum or more for the next 3 - 5 years.  

This exacerbates the financial pressure on BTL landlords even more.  

If, as compared to a property price appreciation rate assumption of 10% under the Revised Base Case, we were to assume a lower a property price appreciation rate of 5%, as well as a lower gross rental yield of 3%, all other things being equal, this would result in continuing almost catastrophic negative cashflows and negative IRR (if, that is, the BTL landlord is able to hold on for five years):

Item

Assumptions

t0
(start)

t1
(year 1 end)

t2
(year 2 end)

t3
(year 3 end)

t4
(year 4 end)

t5
(year 5 end)

IRR

1

Property purchase price

850,000

2

Stamp Duty Land Tax ("SDLT")

55,500

3

Conveyancing and valuation expenses

3,000

4

Total cost of acquiring property

908,500

5

Equity investment by landlord

333,500

6

Interest only mortgage

575,000

7

5-year fixed mortgage rate

6.0%

6.0%

6.0%

6.0%

6.0%

8

Annual property price appreciation

5.0%

5.0%

5.0%

5.0%

5.0%

9

Property price

892,500

937,125

983,981

1,033,180

1,084,839

10

Loan-to-value ratio

67.6%

64.4%

61.4%

58.4%

55.7%

53.0%

11

Gross rental yield

3.0%

3.0%

3.0%

3.0%

3.0%

12

Annual insurance and maintenance inflation

5.0%

5.0%

5.0%

5.0%

13

Annualised cashflows

14

Annual rental income

25,500

26,775

28,114

29,519

30,995

15

Annual letting commission

-3,366

-3,534

-3,711

-3,897

-4,091

16

Annual management fee

-1,836

-1,928

-2,024

-2,125

-2,232

17

Annual service charge

-3,000

-3,150

-3,308

-3,473

-3,647

18

Annual insurance and maintenance costs

-800

-840

-882

-926

-972

19

Gross profit before interest

16,498

17,323

18,189

19,098

20,053

20

Annual interest

-34,500

-34,500

-34,500

-34,500

-34,500

21

Cashflow after interest

-18,002

-17,177

-16,311

-15,402

-14,447

22

 Tax @ 20% on gross profit after deduction of 20% of interest

-1,920

-2,085

-2,258

-2,440

-2,631

23

Cashflow after interest and tax

-19,922

-19,262

-18,569

-17,841

-17,077

24

Property sale price

1,084,839

25

less Interest only mortgage

-575,000

26

less Selling commission (3.6%)

-39,054

27

less Solicitor's fee

-3,000

28

Equity proceeds

467,785

29

 Equity proceeds less initial SDLT and conveyancing and valuation expenses

409,285

30

CGT @ 28%

-114,600

31

Equity proceeds after CGT

294,685

32

BTL landlord's net cashflows

-333,500

-19,922

-19,262

-18,569

-17,841

277,608

-8.3%

Regional variations

While the situation for many BTL landlords in parts of London may be nothing short of being almost catastrophic, forcing them into distressed sales of their BTL properties, the same is not necessarily the case in some other parts of the country. Indeed, gross rental yields in some parts of northern England, for example, are c. 7% - 9%. Moreover, property prices in some parts are expected to appreciate at annual average rates of c. 8% - 10% over the next 3 - 5 years.  

So, in conclusion, while a dramatic rise in mortgage rates has created unbearable financial pressure for many BTL landlords in some parts of the country, with this situation being exacerbated further by stagnant rental income in prime central London and low property price appreciation, many BTL landlords in other parts of the country have been able to stave off the pressure due toby bumping up already high gross rental yields and through property price appreciation.

Recommended Reads:

Protect buy-to-let from rising rates
Retaining “Buy to Let” Investment Despite High Mortgage Rates

About the author

Aivanaa Maraea

Aivanaa Maraea

Co-Founder

Trader at ASIL, a financial services firm. Provided broad advisory services for a Fixed Income mandate including investments in US RMBS, Trups CDOs etc. Previous experience as client relationship manager, and sales

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