UK Personal Tax & Self Assessment Guides
18 guides on Self Assessment, PAYE, tax codes, allowances, and tax returns.
Child Benefit & Tax — InvestmentKit
Child Benefit rates (£25.60/£16.95), the High Income Child Benefit Charge, opting out, and how to receive Child Benefit without triggering a tax charge.
Dividend Tax UK — InvestmentKit
UK dividend tax rules: £500 dividend allowance, 8.75%/33.75%/39.35% rates, dividend nil rate band, and reporting dividends on Self Assessment.
Dividend Tax — InvestmentKit
The £500 dividend allowance for 2026/27, dividend tax rates (8.75%/33.75%/39.35%), how dividends are taxed, reporting, and the dividend allowance rules.
High Income Child Benefit Charge — InvestmentKit
The High Income Child Benefit Charge: when your income exceeds £60,000, clawback at 1% per £100, options to opt out, and interaction with partner income.
Marriage Allowance — InvestmentKit
Transfer £1,260 of Personal Allowance to your spouse, eligibility rules, how to claim online, backdating for up to four years, and the potential tax saving.
PAYE & Tax Codes — InvestmentKit
How PAYE works, what tax codes (1257L, BR, D0, etc.) mean, emergency codes, checking your code, and year-end adjustments explained.
Payments on Account — InvestmentKit
How HMRC collects advance payments towards your tax bill: 31 January and 31 July deadlines, who must pay, how to reduce payments on account, and worked examples.
Payroll & PAYE — InvestmentKit
UK payroll and PAYE: operating PAYE, RTI reporting, FPS/EPS submissions, payroll software, tax codes, payroll deadlines, penalties.
Personal Allowance — InvestmentKit
The standard £12,570 Personal Allowance, how it is tapered by £1 per £2 over £100,000, transferable marriage allowance, and how to claim through your tax code.
Personal Savings Allowance — InvestmentKit
The Personal Savings Allowance: £1,000 for basic rate, £500 for higher rate, £0 for additional rate. How savings interest is taxed, the starting rate for savings, and ISAs.
Scottish Income Tax — InvestmentKit
Scottish Income Tax rates and bands: starter 19%, basic 20%, intermediate 21%, higher 42%, top 48%. How Scottish tax differs from the rest of the UK.
Self Assessment Registration — InvestmentKit
How to register for Self Assessment by 5 October, get your UTR number, activate your online account, and avoid late registration penalties.
Self Assessment for Self-Employed — InvestmentKit
Completing SA103S or SA103F for self-employed tax returns: turnover, allowable expenses, Class 4 NIC, payments on account, and a worked tax bill calculation example.
Self Assessment Tax Return — InvestmentKit
the Self Assessment tax return (SA100): deadlines, registration, UTR, filing online vs paper, penalties, and how to pay HMRC.
Student Loan Repayments — InvestmentKit
Plan 1, 2, 4, 5 and Postgraduate Loan repayment rates, thresholds, how HMRC collects through PAYE and Self Assessment, and what triggers repayment.
Tax Codes Explained — InvestmentKit
HMRC tax codes broken down: how they are calculated, what each letter means (L, M, N, T, BR, D0, K, NT), emergency codes, and how to check and correct yours.
Tax Refunds & Overpayments — InvestmentKit
How to claim a tax refund from HMRC, processing times, checking your tax account online, common reasons for overpayment, and how to avoid refund scams.
Welsh Rates of Income Tax — InvestmentKit
Welsh Income Tax rates for 2026/27, how they differ from England and Northern Ireland, the WRAIT system, and what it means for Welsh taxpayers.