Finance calculator
United Kingdom - Tax year 2026/27UK Self Assessment Payments on Account Calculator
Project balancing payments and payments on account from last year's liability, PAYE deductions, student loans, and capital gains.
Formula
UK Self Assessment Payments on Account Calculator calculation method
UK Self Assessment Payments on Account Calculator is a planning estimate. Tax, payroll, property, and contribution rules change by year and personal facts, so verify official guidance before filing, paying, billing, or making financial decisions.
UK Self Assessment Payments on Account Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments
Enter a representative tax scenario for United Kingdom, review every editable rule, and compare the estimate with current official guidance for Tax year 2026/27.
Sources and assumptions
UK tax expansion source notes
This profile supports UK student loan, capital gains, dividend, savings interest, and self assessment payment-on-account planning calculators.
- Effective year
- Tax year 2026/27
- Last verified
- 2026-06-01
UK Self Assessment Payments on Account Calculator is a planning estimate. Tax, payroll, property, and contribution rules change by year and personal facts, so verify official guidance before filing, paying, billing, or making financial decisions.
Official and reference sources
Assumptions
- Student loan thresholds and rates are editable because plan rules can change by tax year.
- Dividend, savings, and CGT estimates use user-entered income slices or rates.
- Payments on account use a simplified prior-year liability test.
- Amounts are annual and rounded for display.
Not included
- Scottish tax interactions for savings/dividends, PAYE coding, benefits in kind, marriage allowance, and full self assessment forms.
- Residential property reporting deadlines, losses, business asset disposal relief, carried interest, and non-resident CGT details.
- Exact student-loan plan thresholds, overseas repayment bands, payroll rounding, and write-off rules.
- HMRC interest, penalties, and payment-plan arrangements.
FAQs
What does the UK Self Assessment Payments on Account Calculator include?+
Project balancing payments and payments on account from last year's liability, PAYE deductions, student loans, and capital gains.
Is the UK Self Assessment Payments on Account Calculator official tax advice?+
No. It is a fast planning calculator with visible assumptions. Confirm final numbers with official sources or a qualified professional.
How does the UK Self Assessment Payments on Account Calculator calculate the result?+
It uses the UK Self Assessment Payments on Account Calculator calculation method: UK Self Assessment Payments on Account Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments. Enter a representative tax scenario for United Kingdom, review every editable rule, and compare the estimate with current official guidance for Tax year 2026/27.
What information do I need to use the UK Self Assessment Payments on Account Calculator?+
Project balancing payments and payments on account from last year's liability, PAYE deductions, student loans, and capital gains.
How accurate is the UK Self Assessment Payments on Account Calculator?+
UK Self Assessment Payments on Account Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the UK Self Assessment Payments on Account Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Finance guide
How to use the UK Self Assessment Payments on Account Calculator
Project balancing payments and payments on account from last year's liability, PAYE deductions, student loans, and capital gains. The page also explains the UK Self Assessment Payments on Account Calculator calculation method and shows a practical example: Enter a representative tax scenario for United Kingdom, review every editable rule, and compare the estimate with current official guidance for Tax year 2026/27.
- 1
Enter your details
Enter last year's liability, PAYE deductions, student loans, and capital gains, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the UK Self Assessment Payments on Account Calculator calculation method: UK Self Assessment Payments on Account Calculator estimate = applicable base amounts adjusted by the entered rates, thresholds, allowances, credits, caps, and prior payments.
- 3
Compare scenarios
Change one or more inputs to see how they affect the UK Self Assessment Payments on Account Calculator result before you use the estimate.
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