BUZZ ACCOUNTINGFive calculators, no email required
Every one of them runs in your browser, keeps nothing, and answers the question people actually arrive with. Built by the practice that files these returns every week.
Work out where you stand before you talk to anyone
UK day-count checker
Tick your ties and see how many days you can spend in the UK this tax year before the ties test makes you resident.
Open the tool →60-day CGT deadline
Enter your completion date for the exact filing deadline, the days left, and where the penalties stand if it has passed.
Open the tool →Landlord refund estimator
Your agent withholds 20% of the rent, not of the profit. Estimate how much of it comes back on the return.
Open the tool →Voluntary NI value
What a bought National Insurance year costs, what it adds to your State Pension, and how fast it pays for itself.
Open the tool →Split-year checker
In the year you moved, which of the eight split-year cases is likely to apply — and what it is worth.
Open the tool →Guides to the rules that catch expats out
The Statutory Residence Test, explained properly
Whether the UK taxes your worldwide income comes down to a mechanical test of days, ties and work.
Selling UK property from abroad: the 60-day rule
Every non-resident who sells UK land or property must file a return within 60 days of completion — profit or loss, tax or no tax.
Voluntary National Insurance from abroad: the April 2026 changes
Class 2 for time abroad ended on 6 April 2026. From 2026/27, expats keep their UK State Pension record growing with Class 3 at £18.40 a week, and new…