Any taxpayer wanting to donate money in excess of his tax liability to the Commonwealth may do so at any time by writing a check payable to the State Treasurer and designating it as a donation to the Commonwealth's general fund. Such donations shall be used only for public purposes and shall be deductible as a charitable contribution to the extent allowed under § 170 of the Internal Revenue Code of 1986, as amended. Taxpayers making donations pursuant to this section may (i) include their donations when filing their Virginia income tax return, or (ii) deliver such donations, either in person or by mail, to the Tax Commissioner. The Tax Commissioner shall report to the State Treasurer the amount donated monthly and the State Treasurer shall credit such amount to the general fund.
Va. Code § 58.1-17