uk.co.taptax/taptax

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Publisher-provided title

TapTax

Publisher-provided description

UK tax: take-home pay, self-employed and company tax, VAT, stamp duty, invoices and MTD.

Summary by lookupd

Calculates UK tax, National Insurance, take-home pay, VAT, invoice due dates and Making Tax Digital deadlines for an agent to use.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http taptax https://api.taptax.co.uk/mcp

Codex, remote (streamable-http)

codex mcp add taptax --url https://api.taptax.co.uk/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "taptax": {
      "url": "https://api.taptax.co.uk/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (showing 30 of 49)

Publisher-provided text

• estimate_self_employed_tax Estimate UK income tax and Class 4 National Insurance for a sole trader from turnover and allowable expenses, with the take-home figure, effective and marginal
• check_tax_code Check whether a UK PAYE tax code (e.g. 1257L, BR, K475, 1257L W1/M1) looks right for a salary and circumstances, explain what it means, and estimate any over- o
• check_mtd_status Say whether and when Making Tax Digital for Income Tax applies to someone, from their qualifying income: self-employment turnover plus property income, before e
• get_mtd_deadlines List the standard Making Tax Digital quarterly update periods and deadlines for a tax year, and which one is next. Updates are cumulative from 6 April.
• calculate_take_home_pay Calculate take-home pay from a UK salary for a tax year: income tax by band (England, Wales and Northern Ireland, or Scotland), employee National Insurance, stu
• calculate_gross_salary_for_take_home Work out the gross UK salary needed to take home a given amount a year after income tax, employee National Insurance, student loan and a pension percentage, for
• calculate_salary_sacrifice Compare pay before and after a salary sacrifice for a pension or an electric company car: income tax, National Insurance and student loan saved, employer Nation
• calculate_pro_rata_salary Work out a part-time salary from the full-time salary and the hours or days worked compared with full time, with the take-home pay on the pro rata salary for a
• convert_hourly_rate_to_salary Convert an hourly rate to the annual salary it adds up to for the hours a week and paid weeks a year given, with take-home pay on that salary for a tax year.
• convert_salary_to_hourly_rate Convert an annual salary to its gross hourly rate and the take-home pay per hour, for the hours a week and paid weeks a year given, in a tax year.
• calculate_student_loan_repayment Calculate yearly, monthly and weekly UK student loan repayments on an income for a repayment plan (Plan 1, 2, 4 or the postgraduate loan) in a tax year.
• calculate_child_benefit_charge Calculate the High Income Child Benefit Charge on an adjusted net income and the Child Benefit received in a tax year: the charge, the benefit kept, and the inc
• calculate_tax_on_multiple_incomes Calculate the combined UK tax on income from several sources in one tax year (employment, self-employment, rental profit, dividends and savings interest), allow
• calculate_pension_tax_relief Compare a self-employed person's tax with their current and a higher personal pension contribution in a tax year: the basic-rate relief added to the pension, th
• calculate_dividend_tax Calculate UK tax on dividends for a tax year, given the dividends and other income: the dividend allowance, tax at the basic, higher and additional dividend rat
• compare_salary_and_dividends For a limited company director, work out take-home pay from a chosen salary plus dividends paid from the remaining profit after employer National Insurance and
• compare_limited_company_and_sole_trader Compare take-home pay as a sole trader with running the same profit through a limited company (salary plus dividends, corporation tax and accountancy cost) for
• calculate_corporation_tax Calculate UK corporation tax on a company's taxable profit for a tax year, including marginal relief between the small profits and main rates, with profit after
• calculate_contractor_day_rate Turn a contractor day rate into annual and monthly income, an hourly equivalent, and take-home pay as a sole trader, through a company outside IR35 and inside I
• compare_inside_and_outside_ir35 Compare a contractor's take-home pay working inside IR35 (deemed employment payment, employer National Insurance) with working outside IR35 through a limited co
• calculate_cis_deduction Calculate the Construction Industry Scheme deduction on a payment (labour only, materials excluded) at the registered, unregistered or gross-payment rate, the a
• plan_quarterly_tax_set_aside Plan how much to set aside for tax as a sole trader under Making Tax Digital, from the year's profit or each quarter's profit: the income tax, Class 4 National
• calculate_mileage_allowance Calculate the tax-free business mileage allowance for a year at HMRC's approved mileage rates for a car or van, motorcycle or bicycle, including the passenger r
• estimate_self_assessment_penalties Estimate Self Assessment late filing penalties, late payment penalties and late payment interest on the tax due, from how many days late the return was filed an
• calculate_vat Add VAT to a net price or take it out of a gross price at the standard (20%), reduced (5%) or any other rate, with the net, VAT and gross amounts.
• check_vat_registration Check whether a turnover is over the UK VAT registration threshold for a tax year, and compare VAT payable under the standard scheme with the Flat Rate Scheme f
• check_vat_reverse_charge Work out whether the domestic VAT reverse charge for construction services applies to an invoice, by HMRC's decision steps. Takes the yes or no answers known so
• calculate_markup Calculate the selling price, profit and the equivalent profit margin from a cost and a markup percentage.
• calculate_profit_margin Calculate the profit margin and markup from a cost and a selling price, or the selling price needed for a target margin.
• calculate_invoice_due_date Calculate the date an invoice is due from its date and the payment terms (on receipt, a number of days, end of month, days after month end, a day of the followi

Details

• Version: 1.1.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 705 ms
• First indexed: 2026-11-01T10:09:31.715Z
• Last seen in registry: 2026-11-01T10:09:31.734Z
• Repository: https://github.com/udohsolomon/taptax-mcp
• Website: https://taptax.co.uk/integrations/claude

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