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કૉર્પોરેશન કર કૅલ્ક્યુલેટર

Corporation Tax Calculator (UK 2024)

Annual taxable profit (£)

After allowable deductions

UK Corporation Tax: 19% (profits <£50K) · Marginal relief (£50K–£250K) · 25% (profits >£250K)

What is Corporation Tax Calculator?

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કોર્પોરેશન ટેક્સ (CT) યુકેમાં વેપાર કરતી મર્યાદિત કંપનીઓના કરપાત્ર નફા પર વસૂલવામાં આવે છે. એપ્રિલ 2023 થી, યુકેએ નવી બે-રેટ સિસ્ટમ રજૂ કરી: નાના નફા માટે 19% અને મોટા નફા માટે 25%, £50,000 અને £250,000 વચ્ચેના નફા માટે નજીવી રાહત સાથે.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

સૂત્ર

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f(x)Marginal relief formula: MR = (upper limit − profit) × (upper − lower) / upper × (main rate − small rate)

Variable Legend

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પ્રતીક	નામ	એકમ	વર્ણન
MR	(upper limit − profit) × (upper − lower) / upper × (main rate − small rate)	—	(upper limit − profit) × (upper − lower) / upper × (main rate − small rate)

How to Corporation Tax Calculator

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1Small profits rate: 19% on profits up to £50,000
2Main rate: 25% on profits above £250,000
3Marginal relief applies between £50,000 and £250,000 — effective rate between 19% and 25%
4Marginal relief formula: MR = (upper limit − profit) × (upper − lower) / upper × (main rate − small rate)
5CT return must be filed within 12 months of year end; CT paid within 9 months

Worked Examples

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Example 1

Given:£40,000 profit

પરિણામ:CT = £7,600 (19%)

Small profits rate — straightforward

Example 2

Given:£150,000 profit

પરિણામ:CT = ~£32,750 (effective 21.8%)

Marginal relief applies between £50K and £250K

Example 3

Given:£400,000 profit

પરિણામ:CT = £100,000 (25%)

Full main rate — no marginal relief

Real-World Applications

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Personal financial planning and budget setting

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Comparing loan options before signing agreements

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Understanding the true cost of borrowing over time

Corporation Tax Rates 2024/25

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Profit Level	Rate Applied	Notes
Up to £50,000	19%	Small profits rate
£50,001 – £249,999	19–25% (marginal)	Marginal relief reduces effective rate
£250,000+	25%	Main rate — no relief
Associated companies	Divide limits	Limits divided by number of related companies

Frequently Asked Questions

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What is Corporation Tax?

Corporation Tax (CT) is charged on the taxable profits of limited companies trading in the UK. From April 2023, the UK introduced a new two-rate system: 19% for small profits and 25% for large profits, with marginal relief for profits between £50,000 and £250,000

How accurate is the Corporation Tax calculator?

The calculator uses the standard published formula for corporation tax. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Corporation Tax calculator use?

This calculator works with inches, British pounds, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Corporation Tax calculator use?

The calculator applies the standard formula for this type of calculation. See the 'How It Works' steps above for the detailed formula breakdown.

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Pro Tip

મૂડી ભથ્થાં (એપ્રિલ 2023 થી સંપૂર્ણ ખર્ચ) લાયકાત ધરાવતા પ્લાન્ટ અને મશીનરી માટે 100% પ્રથમ-વર્ષની કપાતની મંજૂરી આપે છે - રોકાણ-ભારે વર્ષોમાં કરપાત્ર નફામાં નોંધપાત્ર ઘટાડો કરે છે.

References

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Deep Dive

Read the full guide on how to use this calculator effectively

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Formula-verified for precision

Reviewed October 2026

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