Calculate Stamp Duty Land Tax (SDLT) on UK residential property purchases. Rates for 2024: 0% up to £250,000; 5% on £250,001–£925,000; 10% on £925,001–£1.5m; 12% above £1.5m. First-time buyer relief: 0% up to £425,000; 5% on £425,001–£625,000.
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