How a Line of Credit Draw Period Actually Works

I signed for my first business line of credit assuming it worked roughly like a loan that happened to be flexible, and I was wrong in a way that cost me a confused phone call to my banker about a year in. A line of credit has its own rhythm, and the draw period specifically is the part nobody explained to me clearly before I needed to actually understand it.

What the draw period actually is

The draw period is the window during which you can borrow against your approved credit limit, repay it, and borrow again, similar in spirit to a credit card but usually at a much lower rate and a much higher limit. Mine ran five years. During that stretch, I could pull ten thousand dollars to cover a slow month, pay it back once a big invoice cleared, and pull again a few months later without reapplying for anything, as long as I stayed under my limit and made the required minimum payments along the way.

What surprised me is that the draw period eventually ends, and what happens after that is where a lot of business owners get caught off guard.

What happens when the draw period closes

Once the draw period ends, most lines of credit convert into a repayment period, during which you can no longer borrow additional funds and instead pay down whatever balance remains on a fixed schedule, often over several years. If you have been using the line the way it is designed, drawing and repaying as cash flow allows, this transition is a non event. If you have been carrying a large balance right up to the end of the draw period, you can suddenly face a much larger required payment than you were used to, because the interest only or minimum payments common during the draw period usually give way to fully amortizing payments during repayment.

I learned this the hard way when my own line converted and my monthly obligation roughly doubled overnight, not because anything changed in my business, but because I had been treating the line as ongoing working capital rather than a revolving tool meant to be paid down between uses.

Interest only payments feel cheaper than they actually are

During the draw period, many lenders only require interest payments on the outstanding balance, not principal. This keeps monthly obligations low and makes the line feel inexpensive to carry, but it also means a balance drawn early in the draw period and never paid down can sit there accumulating interest for years without shrinking at all. I have seen owners treat the low interest only payment as evidence the line was cheap, when in reality they were simply deferring the principal, not avoiding it.

Pushing back on "keep the line maxed out for safety"

A piece of advice I hear often is to draw the full line early and just hold the cash as a safety buffer, on the theory that having the money sitting in an account is safer than having access to it through the line. I disagree with this as a default strategy. A drawn balance accrues interest whether you use the cash or not, while an undrawn line costs you little or nothing until you actually pull from it. Treating the line as a buffer you can access when genuinely needed, rather than cash you hold preemptively, keeps your carrying cost close to zero during the months you do not actually need it.

The exception is a business anticipating a real disruption to its access to credit, a known upcoming change in the lender relationship or a warning sign in the broader lending environment, where drawing early as insurance against losing access altogether can make sense. For a healthy, ongoing business relationship, it usually does not.

How draw and repayment periods typically compare

What to actually track once you have a line open

Know your draw period end date and calendar it well in advance, not as a surprise a month before it arrives. Track your average outstanding balance over time rather than just your current one, because a balance that creeps upward month over month during the draw period is a pattern worth catching early, before the repayment period turns it into a fixed, larger obligation. If you are still deciding whether a line of credit is the right tool at all, it helps to understand when a line actually makes more sense than a term loan, and if the balance ever gets away from you, invoice factoring against outstanding receivables is one legitimate way to bring it back down quickly rather than letting it ride into a repayment period you were not prepared for.