HELOC Draw Period and Repayment Period on a Locked Balance

The Quick Read: A locked balance is a slice of a HELOC converted to a fixed rate on its own amortizing schedule during the draw period, and that slice keeps its schedule when the draw ends, while any unlocked balance still moves into repayment or a balloon. Not every lender offers a lock. On investment-property lines in Lendmire’s wholesale network, pricing floats and never converts to fixed, so the real planning question is the repayment step-up.

• The draw period lets you borrow against the line, usually on interest-only payments, and the repayment period closes the line and starts principal-and-interest payments.
• A lock fixes only the portion you choose. The rest of the line usually stays variable.
• A locked segment follows its own term, which may end before or after the draw period does.
• Investment lines through the network run a 5-year draw and a 25-year fully amortizing repayment, with no fixed-rate conversion.
• A HELOC qualifies the borrower, while a DSCR loan is reviewed for the property, and the two interact through lien position.

What Does Locked Balance Actually Mean?

A locked balance means a drawn amount that has been converted to a fixed rate and a fixed repayment schedule while the line is still open. Bankrate explains that lenders typically allow this at origination or at any point in the draw period. Bankrate also says lenders may cap the number of locks, may require a minimum balance, and may offer fixed portions running from roughly five to 30 years, repaid like a typical mortgage.

The phrase gets confused with other uses of the word lock, so it helps to separate them:

• A fixed-rate segment on a HELOC is the subject here.
• A pre-closing lock window is a promise made on a purchase or refinance. It has nothing to do with a HELOC draw.
• A prepayment lockout is a penalty period that discourages early payoff.
• A frozen balance at the end of the draw is how people loosely describe a line that can no longer be borrowed against. The balance is not fixed, only the ability to draw is gone.

Plenty of investors say locked when they mean the last one. A line closing to new advances is not a lock, and the balance on it can still float.

Key Terms Defined

Draw period: The window during which you can borrow against the line, repay, and borrow again up to the limit.

Repayment period: The phase after the draw ends, when the line is closed to new advances and the balance is paid down on a set schedule.

Locked segment: The part of the drawn balance converted to a fixed rate and term.

Interest-only payment: A payment that covers interest on the drawn balance and leaves the principal unchanged.

Fully amortizing: A payment structure that pays both interest and principal so the balance reaches zero by the end of the term.

Balloon: A single large payment of the remaining balance due at the end of the term.

CLTV: Combined loan-to-value, which adds the line and any first mortgage together and divides by the property value.

How the Two Periods Work Side by Side

Most HELOCs run in two phases, and the contract sets the length of each. Experian describes the draw as usually five to 10 years, followed by repayment that typically runs about 20 years. It adds that some plans end in a balloon and that payments can more than double when amortization begins. BiggerPockets lists a 10-year draw and 20-year repayment as the common pattern. That is a pattern and not a rule, so read the note.

The table below shows the general market pattern, not any one program.

The locked column is why this topic confuses people. The locked piece is already amortizing during the draw, so it does not wait for the repayment period to start. Meanwhile the unlocked piece is still interest-only and floating. The monthly bill is a blend of the two.

How a Lock Changes the Calendar

A lock adds a second clock on top of the line’s own clock, and the two do not have to line up. Three situations come up most often.

The lock term outlasts the draw. Say a segment is locked for a term that runs well past the end of the draw. When the draw closes, that segment keeps amortizing on its original schedule. The unlocked balance moves into repayment or a balloon. The borrower now has two different payment schedules running at once.

The lock term ends first. If a fixed term is shorter than the time left on the line, the segment reaches the end of its lock. Depending on the note, it may revert to the variable rate, be paid off, or be eligible for a new lock. This is one of the most overlooked clauses in a HELOC agreement.

No lock at all. The whole balance floats through both phases. The payment moves with the index while the line is open and steps up again when amortization starts. Many investors compare this case with a locked structure when they decide whether a lock is worth its fees and minimums.

One mechanical detail matters for how the line is treated. Under the federal official interpretation of home equity plan rules, a portion repaid on new fixed terms stays part of the open-end plan if available credit is replenished as that portion is repaid. If credit is not replenished, the portion is treated as a closed-end loan. In practice that means paying down a locked piece may or may not free up borrowing room, depending on how the lender built the product.

Where the General Rule Breaks

The standard story of a 10-year draw, a 20-year repayment, and an optional lock has several exceptions that matter to investors.

Balloon plans. Some lines have no amortizing repayment phase at all. The full balance comes due at the end of the draw. If the plan never required principal, the balance on the last day equals the balance that was drawn on day one.

Lock eligibility by occupancy. Many bank products are built for primary residences, and a lender may limit its fixed-rate option to owner-occupied homes. The federal booklet on home equity lines explains the draw-versus-repayment structure and warns that with a variable rate, payments can change even if you draw nothing more. A line on a rental may carry a shorter draw, lower leverage, and no lock option, so consumer norms should not be assumed.

A lock does not fix the whole line. Most structures leave the unlocked balance and any future draws variable, as Bankrate notes. Locking one segment can shield part of the balance from rate moves, but it does not remove the repayment step-up on the rest.

Renewal is not a plan. A lender can review a line at the end of the draw, but an extension is discretionary. The booklet also notes that a lender can freeze or reduce a line under certain conditions, and that a sale of the property generally requires paying the line off in full.

Early payoff costs. Some products carry prepayment charges if the line is paid off during the draw, and some charge fees to convert or release a lock. Those fees are lender-specific, so they belong on your question list.

What the Network’s Investment Lines Look Like

Lendmire is a mortgage broker and not a lender. It places HELOC files through select wholesale partners, and every figure below is subject to lender guidelines and full file review. The structures differ from the bank products described above in a few ways that matter for this topic.

Variable structure. On every line in the network, the balance does not convert to a fixed structure at any point during the draw or the repayment period. An investor looking for a locked balance will not find one here, so the planning tool is paydown, not conversion.

Draw and repayment lengths by occupancy. Primary residences and second homes can run a 3-year interest-only draw with a 17-year fully amortizing repayment, or a 5-year interest-only draw with a 25-year fully amortizing repayment. Investment lines run the 5-year draw and 25-year repayment structure only. There is no balloon in either design.

Most of the line is drawn at closing. At least 75% of the line is drawn on day one. That changes how the draw period feels, because the interest-only payment applies to a mostly funded balance from the start and not to a small balance that grows over time. Borrowers are also qualified on the interest-only payment calculated on the maximum draw, so a line sized for convenience is tested as if fully used.

Investment-property leverage. The ceiling on an investment line is 70% CLTV, with a 700 minimum credit score and a maximum line of $500,000. There is no higher tier on investment property. Primary-residence ceilings reach 90% CLTV only at a 720 credit profile, and second homes top out at 90% under the same pairing, so a leverage figure quoted for a homestead should never be read across to a rental.

Borrower-level qualification. Debt-to-income tops out at 50%, with 45% as the cap for credit profiles from 600 to 679. A HELOC reads the borrower’s credit, income, and equity, while a DSCR loan reads the property’s rent against its monthly obligation.

Title is the sharpest difference from DSCR. The borrower must hold title individually or in an inter vivos revocable living trust. An LLC cannot hold title on these lines. A DSCR loan can be written to an LLC-titled rental, subject to lender program eligibility, but a property already deeded to an LLC would need a vesting change before a HELOC is possible, or a DSCR cash-out instead.

Availability. These lines are brokered in 16 full-service states, which is narrower than the 41-market DSCR footprint, so confirm eligibility before building a plan around one.

When a HELOC Meets a DSCR Loan

Investors often hold a HELOC and a DSCR first mortgage on the same property, or plan to refinance one into the other. Lien position decides how that works.

A DSCR cash-out refinance usually requires an existing junior lien to be paid off or subordinated. The junior holder has no obligation to subordinate, so without consent it moves up in priority. If a HELOC sits behind a first lien, the refinance sequence has to account for it. Lendmire’s piece DSCR Second Lien vs Cash-Out Refinance for an Equity-Rich Landlord walks through that choice. For the broader DSCR picture, the complete DSCR loans guide covers qualification mechanics.

Coverage math is the other point of contact. Programs that count a second lien add its payment to the first payment before testing coverage. How a lender sets that payment for a line still in its draw phase, interest-only or fully amortizing, is program-specific, so ask before assuming.

Passing a coverage test also does not mean the property cash-flows. DSCR compares rent to PITIA only, and repairs, vacancy, management, utilities, and capex all sit outside the ratio. An investor with a HELOC balance should stress-test the line payment separately.

This is where a practical bridge helps. Lendmire’s explainer HELOC Repayment Period Payment Changes for an Ended Draw Period covers the step-up in detail, but it is not a substitute for reading your own note.

What the Decision Looks Like in Practice

The honest framing is that a lock is a tool for a specific borrower, and the repayment step-up is a risk for every borrower. The decision usually turns on a few questions.

Do you need payment certainty on part of the balance? If a draw funded a rehab and the stabilized rent comfortably covers it, a fixed segment may suit you. Where no lock exists, as in the network’s investment lines, a planned partial paydown is the substitute.

Is the balance shrinking? Interest-only keeps principal flat. An investor who borrowed for a down payment and never paid down faces the same balance on the last day of the draw. Partial paydowns during the draw, and a refinance backup plan, are the standard defenses. A cash-out refinance can consolidate the line if the repayment payment looks uncomfortable.

What happens at the boundary? Mark the end of the draw on a calendar. Model the payment at the transition against rents, not against the draw-period payment you have been paying.

A checklist worth taking to any lender covers:

• how long the draw and repayment run, and whether a balloon applies,
• whether a lock exists, its minimum size, the number of locks allowed, and the fees to lock or unlock,
• whether repaid principal on a locked piece restores available credit,
• what the rate does on the unlocked balance, and what limits apply,
• whether the lender can freeze or reduce the line,
• any prepayment charge.

Tax treatment can depend on how the funds are used and how the property is held. Investors should keep clear records and speak with a qualified tax professional before relying on any deduction.

If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Bankrate – Fixed-rate HELOC

2. Experian – How HELOC repayment works

3. BiggerPockets – HELOC glossary

4. CFPB – Official interpretation of 1026.40

5. CFPB – What You Should Know About HELOCs booklet