A portfolio-grade SDLT calculator and filing platform for commercial and mixed-use matters - import once, calculate correctly, file in bulk, and move to registration with confidence.


Post-completion teams juggle portfolio purchases and leases — linked transactions, premiums and stepped rents — across emails and spreadsheets. With no single source of truth, NPV is rebuilt each time, UTRNs and 14-day deadlines are tracked manually, SDLT5s arrive piecemeal, and common errors (LA codes, relief evidence, linked totals) trigger rush filings, penalties and requisitions.
One home for SDLT. Upload a portfolio once and the system maps fields, validates in real time and runs explainable calculations (lease NPV, linked-transaction logic, reliefs). Dashboards show what's due and who owns it; two-person approval is built in; file singly or in batch with automatic SDLT5/UTRN capture, a payments hub for deadlines and amounts, and a ready-to-send AP1 pack. Exportable reports and an immutable audit trail keep partners, clients and regulators aligned without extra work.

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