HMRC SDLT: SDLTM13080 – Calculation of stamp duty land tax: Rent: Net present value: Example of manual calculation

Principles and Concepts of Stamp Duty Land Tax Calculation

This section of the HMRC internal manual provides an example of manually calculating the Stamp Duty Land Tax (SDLT) on rent using the Net Present Value (NPV) method. It is intended for HMRC personnel.

• Explains the SDLT calculation process for rental agreements.
• Details the use of NPV in determining the tax liability.
• Includes a step-by-step example for manual calculation.
• Aims to ensure accurate tax assessments by HMRC staff.

Understanding the Calculation of Stamp Duty Land Tax (SDLT) for Rent: Net Present Value (NPV)

In the UK, when you enter into a lease agreement, you might need to pay Stamp Duty Land Tax (SDLT) based on the rent you will pay over the duration of the lease. A key concept in determining the SDLT for renting property is the net present value (NPV) of the total rent due. This article will explain how to calculate the NPV of rent payable and provide a detailed example.

What is Net Present Value (NPV)?

Net Present Value (NPV) is a way of calculating the value of future cash flows in today’s terms. When it comes to lease agreements, NPV gives you a way to assess how much the future rent payments are worth now. This is important for determining how much SDLT you need to pay.

The basic idea is that a pound today is worth more than a pound received in the future because of factors like inflation and potential investment. By discounting future rents back to their present value, you can understand the true cost of your rental agreement.

How is NPV Calculated?

To calculate NPV, you need to know:

– The amount of rent payable each year.
– The discount rate, which is often set by HMRC. For this example, we use a discount rate of 3.5% (0.035).

The formula for calculating NPV for each year’s payment is:

NPV = Rent / (1 + discount rate) ^ number of years

Where:
– Rent: The amount of rent in the specified year.
– Discount rate: The rate used for discounting the future cash flows.
– Number of years: The year for which you are calculating the present value.

Example of NPV Calculation

Let’s consider a lease for ten years, where the rent payable changes each year. The rental payments are as follows:

– Year 1: £4,000
– Year 2: £5,000
– Year 3: £6,000
– Year 4: £7,000
– Year 5: £8,000
– Year 6: £9,000
– Year 7: £9,500
– Year 8: £10,000
– Year 9: £10,500
– Year 10: £11,000

Now we will calculate the NPV for each of these years.

Calculating NPV for Each Year

1. Year 1:

• Calculation: 4,000 / (1 + 0.035) = 4,000 / 1.035
• NPV: £3,864.73

2. Year 2:

• Calculation: 5,000 / [(1 + 0.035) x (1 + 0.035)] = 5,000 / (1.035 x 1.035)
• NPV: £4,667.55

3. Year 3:

• Calculation: 6,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 6,000 / (1.035 x 1.035 x 1.035)
• NPV: £5,411.66

4. Year 4:

• Calculation: 7,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 7,000 / (1.035 x 1.035 x 1.035 x 1.035)
• NPV: £6,100.10

5. Year 5:

• Calculation: 8,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 8,000 / (1.035 x 1.035 x 1.035 x 1.035 x 1.035)
• NPV: £6,735.79

6. Year 6:

• Calculation: 9,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 9,000 / (1.035 x 1.035 x 1.035 x 1.035 x 1.035 x 1.035)
• NPV: £6,508.00

7. Year 7:

• Calculation: 9,500 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 9,500 / (1.035 x 1.035 x 1.035 x 1.035 x 1.035 x 1.035 x 1.035)
• NPV: £6,287.93

8. Year 8:

• Calculation: 10,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 10,000 / (1.035 x 1.035 x 1.035 x (1.035) x (1.035) x (1.035) x (1.035) x (1.035))
• NPV: £6,075.29

9. Year 9:

• Calculation: 10,500 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035)] = 10,500 / (1.035 x 1.035 x 1.035 x (1.035) x (1.035) x (1.035) x (1.035) x (1.035) x (1.035))
• NPV: £5,869.85

10. Year 10:

• Calculation: 11,000 / [(1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1 + 0.035) x (1

Useful article? You may find it helpful to read the original guidance here: HMRC SDLT: SDLTM13080 – Calculation of stamp duty land tax: Rent: Net present value: Example of manual calculation

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