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Internal vs External Financing | Top 7 Differences (Infographics)

Written by Sayantan Mukhopadhyay Sayantan Mukhopadhyay WallStreetMojo Contributor Writes WallStreetMojo articles with practical finance, Excel, valuation, and business learning context. View Full Profile
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Updated Oct 1, 2025
Read Time 3 min

Differences Between Internalย and Externalย Financing

To perpetuate, a business needs funding. It can be from its resources, or it can be sourced from somewhere else. When a company sources the funding from its sources, i.e., its assets, from its profits, we would call it an internal source of financing. On the other hand, when a company needs enormous money, and only internal sources are not enough, they take loans from banks or other financial institutions.

If we make a quick comparison between these two, we would see that the importance of both of them is similar. However, a company would get greater leverage (and save on taxes) if it takes debt from outside.

In this article, we will talk about both of these sources of finance and do a comparative analysis of internal and external financing sources.

Internal vs external financing

Internal vs. External Financing Infographics

There are a few differences between internal vs. external financing. Hereโ€™s the snapshot below โ€“

Internal vs. External Financing Infographics

Video Explanation Of Internal vs External Financing

Youtube video

Internal vs. External Financing Differences

Here are the key differences between internal financing and external financing โ€“

Key Takeaways

  • Internal sources of finance are sources inside the business On the other hand, external sources of finance are sources outside the business.
  • Companies look for funding internally when the fund requirement is quite low. In this case, external sources of financing the fund requirement are usually quite huge.
  • When a company sources the funding internally, the cost of capital is pretty low. In the case of external sources of financing, the cost of capital is medium to high.
  • Internal sources of funding donโ€™t require any collateral. But external sources of funding require collateral (or transfer of ownership).
  • Popular examples of internal sources of financing are profits, retained earnings, etc. Popular examples of external financing are equity financing debt financing, term loan financing, etc.

Comparison between Internal and External Financing (Table)

Conclusion

Internal and external sources of finance are both critical, but the companies should know where to use what.

The right approach uses the right proportion of internal and external financing. If the company funds too much from its resources, it would be difficult for the company to expand the business. At the same time, if the company depends too much on external sources of finance, then the cost of capital would be huge. So, the company needs to know how to fund its immediate or long-term requirements.

This article is a guide to the key differences between internal vs. external financing, infographics, comparative charts, and practical examples. You may also have a look at the following articles.