The Prince of Wales's funding from the taxpayer increased by 11% during the last financial year, official accounts have shown.

Charles's income from grants-in-aid and Government departments rose from £1,962,000 to £2,194,000, an increase of £232,000 during 2011/12.

He also saw his private funding from the Duchy of Cornwall - the landed estate given to the heir to the throne to provide him or her with an income - go up by 3% to £18.3 million.

The Prince's tax bill rose marginally from £4,398,000 to £4,496,000, an increase of £98,000.

Charles and the Duchess of Cornwall travelled almost 48,000 miles to and from official engagements at home and abroad. Spending on official travel by air and rail came to £1,318,000 - up £238,000, or 22%, from the previous financial year. The accounts cover the Duchess of Cambridge's first full year as a member of the Royal Family but the increased cost was described as "fairly marginal" by a royal source.

Charles, through his private Duchy income, funds the much of the official work of his sons, William and Harry, and wife Camilla. It is thought very little extra outlay has been needed for Kate since her wedding at Westminster Abbey in April last year.

Any additional costs to the taxpayer for the new member of Royal Family would have been incurred under grants-in-aid, which pay for official travel by rail and air, communication support and the upkeep of Clarence House. There has also been no need to find additional property for the Duchess and any increases in press office staff have been minimal.

Kate has ignited huge interest in the British monarchy and her choice of outfits has made her a fashion-leader. There has been speculation that she spends tens of thousands on dresses for official functions but a breakdown of her clothing costs was not included in the accounts released today, only coming under expenditure for official duties and charitable activities - £9,831,000 up from £9,444,000.

Charles, as the groom's father, contributed towards the costs of the royal wedding, along with the Queen and Kate's parents, Michael and Carole Middleton. It is believed the money provided by the families ran into the low hundreds of thousands of pounds.

This figure has also not been released but is included in the accounts under the unofficial expenditure costs which totalled £2,609,000, up from £2,539,000 the previous year.