Capital Contribution

A capital contribution is anything of value you put into your company as its owner. The most common example is simple: you wire money from your personal account abroad into your US LLC's bank account. But contributions also include property, like a laptop you transfer to the business, and expenses you pay personally on the company's behalf, such as the state filing fee when you formed the LLC.

For a foreign-owned single-member LLC, capital contributions sit at the heart of Form 5472. The form has a specific line for amounts the foreign owner contributed during the year, and the IRS expects a number there whenever money moved in. If you sent $3,000 in March and another $2,000 in August, you report $5,000 in contributions on the Form 5472 attached to your pro forma Form 1120, due April 15.

Founders often miss contributions that never touched the company bank account. Paying a $99 registered agent bill from your personal card, buying $400 of software for the business, or covering a supplier invoice yourself all count. Each one is the owner putting value into the company, which makes it a reportable transaction. Keeping a simple list of these payments during the year makes filing painless.

A contribution is not a loan and not a sale. If you expect the company to pay you back with interest, that is a loan, which goes on a different line of Form 5472. Money flowing the other way, from the company to you, is a distribution. Mixing these up will not usually cost you tax, but a substantially incomplete form can trigger the $25,000 penalty under section 6038A, so label each transfer correctly when you record it. Multi-member LLCs track contributions too, because Form 1065 and each partner's Schedule K-1 report capital account changes, and those returns are due earlier, on March 15 for a calendar-year partnership.

Common capital contributions

• Wiring personal money into the LLC bank account
• Paying formation or registered agent fees from a personal card
• Transferring equipment, inventory, or software to the company
• Covering a company bill directly from personal funds