HMRC alert over unclaimed pots of cash worth thousands if you were born in these years / HMRC says check your payslip now and 'don't get caught out' / HMRC urges people earning less than PS100,000 a year to claim benefit / HMRC nearly doubles charge for tax penalties from April / UK workers urged to avoid 60% HMRC income tax before Saturday / HMRC issues 'get ready' alert for people who earn over a certain amount / HMRC message for parents who could be missing out on up to PS2,000 a year / People working from home have days left to claim up to PS140 from HMRC / HMRC warning over four-year rule to claim back overpaid tax / HMRC tax allowance change 'will sting drivers and businesses'