Long term financing refers to raising funds for a period of more than 5 years to finance long term assets like plant, machinery, buildings, etc. The key sources of long term financing are equity shares, preference shares, debentures, term loans, internal accruals. Equity shares provide flexibility but dilute ownership, while preference shares are less risky but more expensive. Debentures and term loans are popular debt instruments that provide tax benefits but also repayment obligations and restrictions. Internal accruals have advantages of no dilution or issue costs but quantities are limited. Companies can raise long term funds through public offers, rights issues, private placements or venture capital/private equity.