UK · Official-service tools
UK tools that stay current.
Payment-date calculators use the live GOV.UK bank-holiday calendar. Directory and visa tools send you to the official service instead of copying a fragile data feed.
Freshness matters here. Each tool names its source, shows its limitations, and tells you when an official account or statement is the final authority.
UK shelf
UK postcode validatorCheck postcode shape locally and open Royal Mail’s official finder.
Universal Credit payment datesGenerate monthly dates and bank-holiday adjustments.
PIP payment datesProject the usual four-week payment rhythm.
State Pension payment datesUse NI suffix rules and a four-week schedule.
Company filing deadline checkerAccounts, confirmation statement, Corporation Tax and return dates.
Companies House lookupValidate a number or launch an official register search.
UK commodity-code lookupPrepare a search for HMRC’s Trade Tariff service.
UK tax refund estimatorEstimate 2026–27 Income Tax overpayment or underpayment.
Visa-processing dashboardTrack elapsed time and open the current UKVI guidance.
UK take-home pay calculatorEstimate 2026–27 pay after tax, NI and a simple pension deduction.
Dividend tax calculator2026/27 dividend tax with the £500 allowance, stacked on other income.
VAT Flat Rate Scheme calculatorFlat rate by sector, limited cost test and standard VAT comparison.
National Insurance calculatorEstimate standard employee Class 1 NI from annual earnings.
Statutory pay calculatorEstimate 2026–27 maternity, paternity and related statutory pay.
Limited company take-homeDirector salary vs dividends after Corporation Tax, NI and dividend tax.
Holiday entitlement calculator5.6 weeks capped at 28 days, part-year and irregular hours.
Buy-to-let tax calculatorSection 24 finance cost relief and carry-forward.
Child Benefit tax charge calculatorHigh Income Child Benefit Charge from £60,000, with pension relief.
SIPP tax relief calculatorRelief at source, extra higher-rate claim and the £60,000 annual allowance.
Student loan repayment calculatorMonthly and annual repayments for Plans 1, 2, 4, 5 and postgraduate loans.
Stamp Duty calculatorEstimate residential SDLT for England and Northern Ireland.
Scotland LBTT calculatorResidential LBTT, first-time buyer relief and the 8% ADS.
Capital Gains Tax calculatorEstimate 2026-27 CGT on shares, funds and second properties.
Inheritance Tax calculatorNil-rate band, residence band, taper and the 36% charity rate.
Pension lump sum tax calculatorTax-free 25%, Lump Sum Allowance cap and tax on the rest.
Sole trader tax calculatorEstimate Income Tax and Class 4 NI from turnover and expenses.
Wales LTT calculatorResidential Land Transaction Tax, main and higher rates.
What this shelf does not do
It does not replace a DWP statement, HMRC calculation, Companies House record, customs classification decision, or UKVI decision. The tools are planning aids; official services remain authoritative.