EXHIBIT 12 HIGHWOODS PROPERTIES, INC. NOTES TO PRO FORMA STATEMENTS OF OPERATIONS (UNAUDITED) -- CONTINUED 2. ADJUSTMENTS TO THE UNAUDITED PRO FORMA CONDENSED COMBINING STATEMENT OF OPERATIONS RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS PERIOD FROM NINE MONTHS ENDED JUNE 14, 1994 SEPTEMBER 31, TO DECEMBER 31, 1997 1996 1995 1994 1993 1992 Earnings(1)(2) Income (loss) from continuing operations....... $61,703 $48,242 $28,934 $ 8,159 $(155) $(239) Interest....................................... 33,082 24,699 12,101 4,955 5,185 5,059 Amortization of loan costs..................... 1,689 1,911 1,619 738 -- -- Total Earnings................................. $96,474 $74,852 $42,654 $13,852 $5,030 $4,820 Fixed charges and preferred stock dividends (2) Interest....................................... $33,082 $24,699 $12,101 $ 4,955 $5,185 $5,059 Interest capitalized........................... 3,779 2,935 507 17 16 -- Amortization of loan costs expensed............ 1,689 1,911 1,619 738 -- -- Amortization of loan costs capitalized......... -- -- -- -- -- -- Total fixed charges............................ $38,550 $29,545 $14,227 $ 5,710 $5,201 $5,059 Preferred stock dividends...................... 6,972 -- -- -- -- -- Ratio of earnings to fixed charges............. 2.50x 2.53x 3.00x 2.43x --(3) --(4) Ratio of earnings to combined fixed charges and preferred stock dividends.................... 2.12x 2.53x 3.00x 2.43x --(3) --(4) (1) The calculation does not include amortization of previously capitalized interest. (2) On February 12, 1997, the Company issued 125,000 8 5/8% Series A Preferred Shares, which was its first issuance of preferred stock. On September 25, 1997, the Company issued 6,900,000 8% Series B Preferred Shares, which was its second issuance of preferred stock. (3) Earnings were inadequate to cover fixed charges by $171,000 for the year ended December 31, 1993. (4) Earnings were inadequate to cover fixed charges by $239,000 for the year ended December 31, 1992. F-11