Mellow Blog

HR & payroll, done properly

Practical, country-by-country guides on payroll, compliance and leave — and how to treat your people as capital to invest in, not headcount to manage. Written for HR leaders at growing companies across the UK, Ireland, USA, UAE, India and Australia.

Payroll to the penny in 6 countriesERA 2025 & local compliance built inConnects to Slack, Teams, Xero & QuickBooksBuilt for teams of 10–100
Payroll Global

Directors NI: the annual method explained

Directors are assessed for NI on an annual earnings period, not period by period. How this affects salary-plus-dividend structures and irregular pay.

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Payroll Global

The UK payroll calendar 2026-27: key dates

The key payroll dates for 2026-27: tax year start, monthly PAYE payment dates, P60 deadline, P11D deadline, and Bank Holiday payday adjustments.

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Payroll Global

BACS payments for payroll: setup and timing

BACS takes three banking days. Submitted on Monday, credited on Wednesday. A guide to the BACS cycle, setup, Bank Holiday adjustments, and bank detail fraud prevention.

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Payroll Global

RTI submissions: FPS and EPS explained simply

FPS is sent every payday, EPS is sent for recoveries, nil periods, and year end. A plain guide to RTI submissions for UK employers.

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Payroll Global

Tax codes explained: what each letter means

Tax codes tell payroll how much tax to deduct. A guide to what the numbers mean, what each letter suffix does, and when emergency codes apply.

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Payroll Global

P45 and P60: what they are and when to issue them

P45 is issued on leaving, P60 is issued to all employees still employed at 5 April. A guide to what each must contain, when to issue, and what happens if you miss the deadline.

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Payroll Global

Pension auto-enrolment: your legal obligations

Auto-enrolment is mandatory for eligible employees earning over £10,000. A complete guide to who must be enrolled, contribution rates, communications, and re-enrolment every three years.

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Payroll Global

Statutory sick pay: the complete employer guide

SSP from April 2025 is payable from day one of sickness, at £116.75/week for up to 28 weeks. A complete guide to eligibility, calculation, fit notes, and return to work.

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Payroll Global

Statutory paternity pay in 2026: what's changed

Paternity leave can now be taken in two separate weeks at any point in the first year. What changed in 2025-26 and what SPP pays.

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Payroll Global

Statutory maternity pay: rates, eligibility, and how to calculate

SMP is paid over 39 weeks: 90% for six weeks, then the flat rate or 90% for 33 weeks. A guide to eligibility, calculation, and HMRC recovery.

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Payroll Global

Student loan deductions: plans 1, 2, 4, 5 and postgrad explained

There are now five student loan repayment plans plus a postgraduate loan, each with its own threshold and rate. A guide for UK employers on which applies and how to calculate deductions.

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Payroll Global

National Insurance categories: which one applies to your staff

HMRC uses NI category letters to tell payroll how to calculate contributions for each employee. A guide to the main categories and which applies to your staff.

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