What Is Cost Basis in Life Insurance: Surrenders, MECs, Loans

The cost basis in a life insurance policy is the total amount of premiums you have paid into the contract, reduced by any amounts you have already pulled out tax-free. The Internal Revenue Code calls this figure your “investment in the contract,” and it is the line that separates money the IRS treats as a tax-free return of your own premiums from money it taxes as ordinary income.¹ Get the number wrong and you misreport income, usually in a year when a surrender, lapse, or exchange has already set the stakes.

The growth inside the policy is not part of basis. Interest credited by the insurer, dividends left to compound, and any market-linked gains all sit on top of your premiums as the policy’s gain. That gain becomes taxable once you have recovered every dollar of basis.

A Quick Example

You have paid $50,000 in premiums over twenty years. Along the way, you took $5,000 of cash dividends that were excluded from your income. Your current basis is $45,000, not $50,000. Every tax-free dollar that has already left the policy has reduced the basis that remains.

What Raises and Lowers Your Basis

Premiums are the main input. Each dollar you pay in adds a dollar to your investment in the contract. From there, a handful of common events move the number up or down.

Dividends are the most common adjustment, and their effect depends on what you do with them. Taking a dividend in cash or using it to offset the premium you owe is treated as a tax-free return of premium, and it reduces your basis.² Directing the same dividend to buy paid-up additional insurance works differently. The dividend is not a distribution; it is a reinvestment that increases both your death benefit and cash value, and its cost gets added to your basis.

Policy loans do not change your basis while the policy stays in force. A loan is debt against the cash value, not a withdrawal, so your investment in the contract holds steady no matter how much you borrow. The trouble shows up only if the policy later lapses or is surrendered with the loan still outstanding, covered below.

Riders cut both ways. A waiver-of-premium rider does not add to basis because no additional cash is contributed when the waiver takes over your premium. The portion of your premium specifically allocated to a term rider or a qualified long-term care rider is generally included in your investment in the contract.

How Basis Taxes Your Withdrawals and Surrenders

For a standard life insurance policy that is not a Modified Endowment Contract, the IRS applies a basis-first rule to partial withdrawals. Your own premiums come out first, tax-free, before you touch any of the policy’s gain. This is sometimes called FIFO treatment because your earliest money is treated as the first out.²

Take a whole life policy with $100,000 in premiums paid and a current cash value of $140,000. The $40,000 gap is the policy’s gain. If you withdraw $20,000, the entire amount is tax-free because it falls within your $100,000 basis. Basis drops to $80,000. If you later withdraw $90,000, the first $80,000 is tax-free (exhausting basis), and the final $10,000 is taxable as ordinary income.

A full surrender runs the same arithmetic in a single transaction. Surrendering that policy produces $140,000 in proceeds, minus the $100,000 basis, for $40,000 of taxable gain. Your insurer reports the taxable portion on Form 1099-R, so the IRS already has the number before you file.³

Modified Endowment Contracts Flip the Order

A Modified Endowment Contract (MEC) is a life insurance policy that was funded too heavily relative to its death benefit. The IRS classifies a contract as a MEC if total premiums paid during the first seven contract years exceed the limit set by the 7-pay test.⁴ Certain changes to the policy, such as a death benefit increase, can restart the testing period.

MEC classification changes the withdrawal order. Instead of basis first, distributions come out gain first. Every dollar you pull is taxable income until the policy’s entire gain is exhausted; only after that do remaining withdrawals come out tax-free as a return of basis. The same gain-first rule applies to loans against a MEC, not just withdrawals.

On top of that, any taxable amount you receive from a MEC before age 59½ carries an additional 10% penalty tax.⁵ The exceptions are narrow: distributions attributable to disability, or taken as a series of substantially equal periodic payments over your life expectancy. Once a policy becomes a MEC, the classification is permanent for the life of the contract.

Basis in a 1035 Exchange

Section 1035 lets you swap one life insurance policy for another life insurance policy, an endowment, an annuity, or a qualified long-term care policy without triggering immediate tax on the accumulated gain.⁶ Your cost basis carries over to the new contract. If your old policy had a $75,000 basis, the replacement starts with a $75,000 basis.⁷

A partial 1035 exchange works the same way, proportionally. If you move 40% of the cash value to a new contract, 40% of your basis goes with it, and the remaining 60% stays with the original policy.⁸

The common pitfall is an outstanding policy loan. Under the statute, if another party to the exchange assumes your liability, that assumption is treated as money received by you.⁷ If the old policy has a $30,000 loan and the new insurer does not carry it forward, the $30,000 is treated as “boot” (taxable cash received as part of the exchange) to the extent there is gain in the original contract. Repaying the loan before the exchange, or confirming the new insurer will assume it, avoids that outcome. The exchange also has to run directly between insurers; if the surrender proceeds pass through your hands, the IRS can treat the whole thing as a taxable surrender followed by a new purchase.

Lapse With a Loan: The Phantom Income Trap

This is where basis miscalculations hurt most, because no cash changes hands. If a policy terminates while a loan is still outstanding, the insurer applies the remaining cash value against the loan balance. The IRS treats that as a constructive distribution to you, as though you had received the full cash value and then repaid the loan yourself. The taxable amount is the total cash value at lapse, including the portion applied to the loan, minus your remaining basis.¹

Imagine a policy with $200,000 in cash value, a $150,000 outstanding loan, and a $60,000 basis. The deemed distribution at lapse is the full $200,000 cash value, and the taxable gain is $140,000. You would owe income tax on $140,000 without ever receiving a check. The insurer reports it on Form 1099-R.⁹ A heavily-loaned policy that is at risk of lapsing can sometimes be rescued through a 1035 exchange or by paying enough premium to keep it in force.

Proving Your Basis Is on You

The IRS requires taxpayers to keep accurate records of all items affecting the basis of their property.¹⁰ For a life insurance policy, that means tracking every premium payment, every dividend taken in cash, every partial withdrawal, and every loan transaction for the entire life of the contract. These policies run for decades.

Insurers send annual statements showing premiums received and current cash value, but they are not required to track your cumulative basis or report it to the IRS. If the policy is old, if you have changed insurers through a 1035 exchange, or if the original agent is long gone, reconstructing basis after the fact can be difficult. Keep the original application, annual statements, any correspondence about dividends or withdrawals, and the paperwork from any prior exchange. When a policy changes hands through a 1035, the documentation from the original contract is the only proof that the carryover basis is what you say it is.

Without that proof, the IRS can treat an entire distribution as taxable gain. The organized file is what keeps that worst case from happening.

1
Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
2
General Accounting Office (GAO). Tax Treatment of Life Insurance and Annuity Accrued Interest
3
IRS. 2025 Instructions for Forms 1099-R and 5498
4
Office of the Law Revision Counsel. 26 USC 7702A – Modified Endowment Contract Defined
5
Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts – Section (v)
6
Office of the Law Revision Counsel. 26 USC 1035 – Certain Exchanges of Insurance Policies
7
Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment – Section (d)
8
IRS. Revenue Procedure 2011-38 – Section 1035
9
Internal Revenue Service. About Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc.
10
Internal Revenue Service. Publication 551, Basis of Assets