Type two PAYE scenarios in side by side — no saving, no account, no clearing the form to check the second number — and see which one actually pays more once tax, pension, NHF, NHIS, and rent relief differ.
No — this screen never saves anything. Type both offers in, compare, and leave; save either side separately from the PAYE calculator afterward if you want a permanent copy.
Yes — each column has its own Monthly/Annual toggle, so Offer A can be quoted monthly and Offer B annually. Both normalize to the same annual basis before comparing.
Leave those fields blank on the side that doesn't have them — the delta strip reflects the real difference once each side's reliefs are applied, not just a raw gross-income gap.
No — for guidance only, not tax advice.