The Prince of Wales' funding from the taxpayer increased by 11% during the last financial year, Clarence House accounts show.
His income from grants-in-aid and Government departments rose from £1.96m to £2.2m during 2011/12.
The Prince 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 £18.3m.
His tax bill rose marginally from £4.4m to £4.5m.
Spending on official travel by air and rail came to £1.3m - up 22%, from the previous financial year.
Charles and the Duchess of Cornwall travelled almost 48,000 miles to and from official engagements at home and abroad.
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