What the 2026 stamp duty thresholds mean for first-time buyers

Stamp Duty Land Tax (SDLT) is one of the largest single costs of buying a home in England — and one of the most frequently misunderstood. With the thresholds changing again this year, it's worth getting clear on exactly what you'll owe.

The current thresholds

For most buyers, no SDLT is due on the first slice of the purchase price, with rising percentages applied to the portions above each band. First-time buyers continue to benefit from relief, but only up to a capped purchase price — buy above that cap and the relief disappears entirely.

The practical effect is a series of "cliff edges" where paying a few thousand pounds more for a property can push you into a materially higher tax bill.

Why it matters before you offer

Because SDLT is tiered, two homes only £5,000 apart in asking price can carry very different total costs once tax, and any additional-property surcharge, is factored in. Knowing the bands before you negotiate puts you in a stronger position.

Always model the total cost of a purchase — price, SDLT, legal fees and survey — not just the headline figure on the listing.

What to check

• Whether you qualify as a first-time buyer (all buyers must qualify)
• Whether the 3% additional-property surcharge applies to you
• The exact band boundaries for your purchase price

Home Harbour pulls the data that sits around the price — local sold prices, EPC, flood risk and more — so you can judge whether a home is worth stretching into a higher tax band.