TAXES

The federal government does not provide county-by-county breakdowns of personal income taxes, but the Internal Revenue Service’s latest annual report shows that California residents accounted for 12.4 million of the 106.9 million individual returns filed, or 11.6% of the total.

California residents paid $92 billion of the $886.3 billion in personal incomes taxes collected by the IRS in 1987, or 10.3% of the total.

An IRS spokeswoman said that while there are no county-by-county percentages for federal taxes, the ratios should be about the same as those for state income taxes.

So using that as a guideline, Orange County residents filed about 1.05 million federal individual income tax returns in 1987 and paid about $9.4 billion in federal income taxes--an average of $8,952 per return. In 1986, the average federal income tax bill per return for Orange County was $7,882, or 12% less.