SDLT filing deadlines when you buy at auction
12 Mar 2026
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Admin
Trigger point
Stamp Duty Land Tax is normally triggered on completion, not exchange, for standard purchases — but your solicitor pays it from money you transferred early. Late completion does not extend HMRC patience.
Cash flow
Send tax funds to your solicitor before completion day so they can file and pay same day. Last-minute Faster Payments on a Friday afternoon are a needless stress.