Osteons are arranged in parallel to the long axis of the bone. The Haversian canals surround blood vessels and nerve cells throughout the bone and communicate withosteocytes in lacunae (spaces within the dense bone matrix that contain the living bone cells) through canaliculi.
Any donation to a political party, campaign, or action committee is not tax deductible. 1  According to the Internal Revenue Service, âYou cannot deduct contributions made to a political candidate, a campaign committee, or a newsletter fund. 2  Limits On Contributions To Political Campaigns.
How much of the SEP contributions are deductible? The most you can deduct on your businessâs tax return for contributions to your employeesâ SEP-IRAs is the lesser of your contributions or 25% of compensation. (Compensation considered for each employee is limited and subject to annual cost-of-living adjustments).f the SEP-IRA permits non-SEP contributions, you can make regular IRA contributions (including IRA catch-up contributions if you are age 50 and older) to your SEP-IRA, up to the maximum annual limit.