How to find and submit your Self Assessment return in CalCal
Open Tax → Tax Years, work through the three-step Self Assessment wizard, then Check and Send with your Government Gateway credentials.
Tax Returns
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Legacy Self Assessment tax returns in CalCal
CalCal supports two ways to file income tax: MTD for Income Tax (quarterly updates for newer mandated years) and legacy Self Assessment (the classic annual SA return). This guide covers…
HMRC Authentication failure – Possible Reasons
So you’ve got all your figures in order and completed your tax return. You check your calculation and finally press the big Submit button… only to be met with an…
Sending your first tax return online
If you’re using CalCal and this is the first time you’re sending your tax return online, there are a few steps you need to follow. You can sign up with…
Where’s My Personal Allowance Gone?
If you’re non-resident and your Personal Allowance isn’t showing, here’s why — and how to claim it via SA109 or HMRC.