You don't supply enough information in your post. You will need to access this
http://www.taxcalc.eu/ and put in the figures and allowances on an indvidual basis because otherwise this happens :
Calculate end of year tax returns (Married)
Tax year for calculations is 2007
(Form P21C)
Selected currency is Euro €
INCOME FROM EMPLOYMENTS €:
Income for Self 69134.01
Income for Spouse 0.0
Other Incomes/Benefits 0.0
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Gross Statutory Income 69134.01
CREDITS (@20%)€:
Personal Allowance 17600.0
PAYE Allowance 8800.0
Medical Insurance Allowance 0.0
Service Charge Allowance 0.0
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Total Credits (@20%) 26400.0
ALLOWANCES (@41%) €:
Med Expenses, Perm Health 0.0
Expenses 0.0
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Total Allowances 0.0
COMPUTATION OF NET TAX PAYABLE BY YOU €:
Gross Statutory Income 69134.01
Less Allowances before tax 0.0
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Taxable Income 69134.01
Which is chargeable as follows:
43000.0 @ 20% = 8600.0
26134.008 @ 41% = 10714.943
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Income Tax due 19314.943
LESS €:
Tax Credits (26400.0 @20%) 5280.0
Total Income Tax due 14034.943
Net Tax deducted under PAYE 6218.14
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Tax Underpaid € 7816.803
Allowing your full tax credits changes this to Tax Underpaid € 5932.00