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Stamp Duty Simplified: CeMAP Calculation Walkthrough

Stamp Duty Simplified: CeMAP Calculation Walkthrough

Stamp Duty Land Tax (SDLT) is a core topic in CeMAP Module 2. If you’re preparing for your exams, you must know how to calculate SDLT accurately. This guide gives you a clear overview of the bands, a simple formula and a worked example. By the end, you’ll have a reference you can use in both study and exam scenarios.

Tutor Tip:
Always check that you’re using the correct SDLT rates for the exam’s effective date.

What Is Stamp Duty Land Tax (SDLT)?

Stamp Duty Land Tax is a tax on property transactions in the UK. When you buy a residential property above a certain value, SDLT applies in bands. CeMAP exams often test your ability to break a purchase price into these bands and calculate the tax for each.

  • Transaction value: The full price paid for the property.

  • Residential vs non-residential: Rates differ if the property is commercial.

SDLT Bands Explained

Band Threshold (£)

Rate (%)

0 – 125,000

0

125,001 – 250,000

2

250,001 – 925,000

5

925,001 – 1,500,000

10

Above 1,500,000

12

Stamp Duty Simplified: CeMAP Calculation Walkthrough

Tutor Tip:
First-time buyers may qualify for relief on the 0% and 2% bands up to £500,000. Always confirm reliefs before exam calculations.

The Stamp Duty Formula

To calculate SDLT, apply each band in turn using a cumulative approach:

  1. Identify the portion of the purchase price within each band.

  2. Multiply that portion by the band’s rate.

  3. Sum the results.
  • Use percentage in decimal form (e.g. 2% = 0.02).
  • Always round the final SDLT figure to the nearest pound as per exam conventions.

Step-by-Step Worked Example

Scenario: A buyer purchases a home for £350,000.

  1. 0% band on first £125,000:
    £125,000 × 0 = £0

  2. 2% band on next £125,000 (125,001–250,000):
    £125,000 × 0.02 = £2,500

  3. 5% band on remaining £100,000 (250,001–350,000):
    £100,000 × 0.05 = £5,000

Total SDLT payable = £0 + £2,500 + £5,000 = £7,500

How UK Mortgage Advisers Calculate Affordability

Tutor Tip:
In exams, show each step clearly and label your band calculations.

Common CeMAP Exam Questions & Pitfalls

  • Question style: “Calculate the SDLT on a property purchase of £350,000.”

  • Frequent errors:
    • Ignoring the 0% band
    • Applying one rate to the full price
    • Failing to round correctly


Practice several variations to build speed and accuracy.

Quick Reference Cheat Sheet

  • Bands and rates: Memorise the table thresholds and percentages.

  • Formula: SDLT = sum of (portion × rate).

  • Rounding: Final total to nearest whole pound.

Frequently Asked Questions

What if the property price sits exactly on a band threshold?

Include the full threshold amount in the lower band, and start the next band from the next pound.

Do SDLT rates differ for buy-to-let or second homes?

Yes. Additional 3% on each band applies for second properties. Always check the current rules.

Conclusion & Next Steps

Ready for more exam-style examples?

Book our CeMAP Home Study course or visit our website for full training resources:
https://cemap123.co.uk/home-study-training/