Pension Savings Pledge Loan vs Partial Withdrawal Calculator
Compare the same net cash need using a Korean pension savings pledge loan or source-ordered partial withdrawal, with interest dates, repayment tax and collateral stress.
Compare a pension-savings pledge loan and withdrawal for the same cash need
A temporary household or family expense may lead you to consider withdrawing from a Korean pension-savings fund or borrowing against it.
A KRW 10 million loan and a KRW 10 million gross withdrawal do not necessarily deliver the same spendable cash.
Ordinary non-pension withdrawals from credited contributions and investment earnings are subject to withholding, so the required gross withdrawal must be calculated from the net cash target.
This calculator holds that target constant and compares immediate partial withdrawal with an actual quoted pledge loan.
It separates initial withdrawal tax, interest and fees, tax on an approved withdrawal used for repayment, retained pension assets and collateral shortfalls.
The purpose is to understand both external cash commitments and reductions in pension assets, rather than compare a tax percentage directly with an annual borrowing rate.
The worksheet does not approve borrowing or withdrawals, and investment returns are user assumptions.
Confirm tax-source balances and contractual conditions with the pension provider before acting.
Check the supported account scope first
The comparison covers an individual pension-savings fund before pension payments begin, using ordinary non-pension withdrawals.
It requires no deferred retirement-income source, provider-confirmed original prior-year non-credited and credited book principal before losses, and signed cumulative investment profit/loss.
The account name alone does not establish the absence of transferred retirement money; check the actual tax-source statement.
Supported scenarios
Withdraw only the cash required now, or take an executable quoted pledge loan and later repay principal with external cash or a provider-approved partial withdrawal.
The model assumes no existing loan debt, additional contributions or other withdrawals during the comparison period.
Accounts requiring separate review
IRP, DC plans, legacy personal-pension products, deferred retirement income, pension payments already commenced, exceptional or medical withdrawals, current-year contributions and applicable indirect foreign-tax credits are excluded.
An unsupported or unverified scope withholds the comparison.
Income Tax Act Article 129 introduced relevant indirect investment foreign-tax-credit provisions effective July 1, 2026.
Those provisions can change actual withholding.
Do not treat this worksheet’s basic 16.5% assumption as a confirmed tax amount for an affected account; obtain the provider’s credit details and expected withholding separately.
Withdrawal order and loss allocation run in opposite directions
Article 40-3 of the Enforcement Decree of the Income Tax Act orders withdrawals from tax-excluded amounts, then deferred retirement income, then credited contributions and investment earnings.
Because this calculator excludes deferred retirement income, it uses tax-excluded money first and funds the remaining requirement from the taxable pool.
Credited contributions and earnings belong to the same pool; the model does not let you choose a particular security or tax lot to withdraw.
Losses can reduce tax-excluded principal too
Investment losses reduce sources in the reverse of the statutory withdrawal order.
For tax-excluded principal of KRW 2 million and credited principal of KRW 8 million, a KRW 9 million loss exhausts the taxable KRW 8 million first and then reduces tax-excluded principal by KRW 1 million.
Only KRW 1 million of tax-excluded balance remains; the original KRW 2 million is not protected from all losses.
Principal inputs must be the provider’s original book principal before losses, with the corresponding signed cumulative investment profit/loss entered separately.
Do not substitute already loss-adjusted current tax-source balances for original principal or reset cumulative losses to zero.
Check the statement fields so original principal and cumulative investment results remain separate.
If the unwithdrawn account retained during borrowing recovers after a loss, the model recalculates ending tax sources from original book tax-excluded principal, credited principal and cumulative investment profit/loss.
Recovery of tax-excluded principal previously reduced by losses is not automatically classified entirely as a new taxable gain.
If only adjusted current balances are available and original pre-loss book principal is unverified, set source status to Unknown and withhold immediate-withdrawal and future partial-withdrawal repayment projections.
Recalculate after the provider confirms original book principal and cumulative investment profit/loss.
Distinguish verification dates from current-year contributions
Other non-credited contributions become tax-excluded from their verified date.
Remembering that you did not claim a credit is different from having the withholding provider verify the relevant account balance.
Review the pension contribution income/tax-credit certificate and the provider’s reflection of it, then enter a verification date no later than the execution date.
Enforcement Decree Article 40-3(4) contains rules deeming contributions within the credit limit credited from the beginning of the following tax period or another applicable commencement point.
Treating this year’s deposits as permanently tax-excluded through a future repayment date can misstate tax.
The worksheet therefore excludes accounts with current-year contributions and compares verified prior-year sources only.
Do not repeat the same non-credited contribution amount across several pension accounts.
Unknown source information withholds withdrawal results; fictional examples remain distinct from confirmed facts.
An account transfer, additional contribution or changed credit claim requires a new balance check and calculation.
Prepare three groups of inputs
1. Cash need and tax sources
The required net cash is the amount you intend to spend after withholding.
Use original tax-excluded and credited book principal before losses, signed cumulative investment profit/loss, evidence status and verification date from a consistent valuation basis.
Earnings on non-credited principal still belong to the taxable pool.
2. Executable loan quote and repayment dates
Enter actual additional borrowing capacity, the full annual rate, separately cash-paid fees, execution date, contractual maturity, intended end date and interest payment day.
Include applicable early repayment charges in fees; the model does not deduct fees from the loan advance.
Use confirmed extension approval and the extension rate if the intended period exceeds maturity.
3. Collateral and asset-price assumptions
Enter the provider-recognized collateral value and maintenance ratio, rather than automatically using the entire account value.
The annual return projects asset growth over the comparison period, while the price decline is a separate immediate collateral stress.
Do not treat them as the same forecast or apply one institution’s recognition ratio to every fund.
Gross up the withdrawal from the net cash target
Ordinary non-pension withdrawals of credited contributions and investment earnings use basic national withholding of 15%, plus local income tax of 10% of that national amount, totaling 16.5%.
The worksheet applies the rate to the taxable withdrawal after using tax-excluded sources, not to the full account value.
It does not add the historical contribution tax credit again as a second tax charge.
Basic gross-up formula
Net cash target ≤ tax-excluded balance: gross withdrawal = net cash target.
Net cash target > tax-excluded balance: gross withdrawal = tax-excluded balance + (target − tax-excluded balance) ÷ 0.835.
The model rounds taxable withdrawal × 0.165 to the nearest whole KRW and finds the smallest integer gross withdrawal that meets the target.
Actual separate national/local tax truncation and settlement rules may produce whole-KRW differences.
An insufficient account is not presented as successful funding.
Review maximum available net cash and the remaining shortfall, then lower the target or arrange another source.
If the result exhausts the account, check the product’s full-termination conditions as well.
Interest follows calendar days; extensions require approval
Interest is principal multiplied by the annual rate and actual calendar days, divided by 365.
The schedule splits at interest payment dates, contractual maturity and the intended end date.
Within each rate segment, differences between rounded cumulative interest amounts allocate payments so schedule interest sums to the displayed total.
Extension and external interest payments
Interest is paid with external cash on the scheduled dates and principal is repaid in one balloon at the intended end date.
An end date beyond contractual maturity requires actual extension approval and an extension rate.
An unapproved extension is not assumed: the worksheet distinguishes the schedule through maturity from the withheld longer-period comparison.
The interest payment day is limited to 1–28 and the model period to five years.
It does not reproduce overdue interest, capitalization of unpaid interest, automatic rate changes or payment-date shifts for bank holidays.
Use the provider’s agreement and actual bill if its day-count, leap-year or final billing convention differs.
External cash repayment differs from approved withdrawal funding
Repay principal with external cash
Pension assets remain invested at the assumed return and principal is repaid from outside the account.
Financing cost is interest plus fees; required principal and cumulative external payments are shown separately.
Principal is not counted a second time as a financing cost.
Fund repayment with an approved partial withdrawal
At the intended end date, the model adjusts source balances for investment growth or loss and grosses up the withdrawal needed to produce after-tax principal repayment cash.
This creates repayment withdrawal tax and reduces retained pension assets.
It is a funding scenario only when the provider permits collateral release and partial withdrawal.
Selling a fund inside the account and withdrawing cash out of the pension account are separate actions.
The model does not assume that every won of fund sale proceeds can repay debt without withholding.
Official provider FAQs include cash-only repayment and full sale/redemption after non-payment, so this partial-withdrawal scenario must not be read as a reproduction of automatic forced liquidation.
Separate collateral top-up from principal repayment needed
Required collateral = principal × maintenance ratio ÷ 100.
Stressed collateral = recognized collateral × (1 − price decline ÷ 100).
Collateral shortfall = max(required collateral − stressed collateral, 0).
Principal repayment to cure the shortfall = max(principal − stressed collateral ÷ (maintenance ratio ÷ 100), 0).
For example, assume principal of KRW 5 million, recognized collateral of KRW 10 million, a 140% maintenance ratio and an immediate 40% price decline.
Collateral falls to KRW 6 million against a KRW 7 million requirement.
The additional recognized collateral needed is KRW 1 million, but cash principal repayment needed to restore the ratio is about KRW 714,286; those figures describe different actions.
This stress is separate from the annual return used to project ending pension assets.
The model does not determine default, changing asset-specific haircuts, top-up deadlines or forced-sale ordering.
If a shortfall appears, confirm the funding and cure process before choosing an option solely for its modeled cost.
Interpret net cost and break-even outputs
Immediate-withdrawal net cost is initial withdrawal tax plus the assumed investment profit or loss on the gross amount withdrawn.
Loan net cost combines interest, fees and any tax on an approved withdrawal used to fund principal repayment.
The comparison uses nominal assets and external cash at a common date, excluding future pension-receipt tax and the time value of external cash.
Break-even annual borrowing rate
Withdrawal net cost less fees and repayment withdrawal tax is divided by principal and period in years.
With an extension, this is a reference comparison in which the original and extension rates are set to the same level.
A negative figure means other loan costs exceed withdrawal cost even at a zero borrowing rate under those assumptions.
Break-even period
A reference number of days is calculated only for zero investment return, external cash repayment, fixed fees and one constant rate.
Other conditions withhold this period output.
The calculated days may exceed contractual maturity or the model horizon and do not establish permission to keep borrowing that long or guarantee extension approval.
Under a loss assumption, immediate withdrawal may avoid later modeled losses and show a negative net cost.
That is not a guaranteed gain or tax saving.
A lower-cost route is displayed only when inputs are confirmed, both routes can supply the cash, required extension/withdrawal approvals exist and collateral conditions are met; fictional examples withhold an execution judgment.
Fictional example: raising KRW 10 million net
Assume tax-excluded principal of KRW 2 million, credited principal of KRW 18 million and no investment gain or loss.
Raising KRW 10 million net immediately requires about KRW 11,580,838 gross withdrawal, including approximately KRW 1,580,838 model tax.
Simply withdrawing KRW 10 million gross from the KRW 20 million account would fall short of the cash target.
| Item | Immediate withdrawal | Loan, external cash repayment |
|---|---|---|
| Initial spendable cash | KRW 10,000,000 | KRW 10,000,000 |
| Withdrawal tax or loan interest | About KRW 1,580,838 | KRW 600,000 |
| External principal repayment at end | KRW 0 | KRW 10,000,000 |
| Retained pension assets | About KRW 8,419,162 | KRW 20,000,000 |
The 6% rate and 365-day period are explanatory assumptions, not a product quote or approval.
Borrowing preserves pension assets but requires external cash for KRW 10 million principal plus interest.
If pension withdrawals will instead fund repayment, recalculate the related tax and asset reduction; the external-cash figures do not apply unchanged.
Step-by-step use and practical scenarios
- Set the actual net cash need and verify the supported account scope.
Align source-verification and loan-quote dates to dates no later than execution. - Enter provider-confirmed original book principal before losses and signed cumulative investment profit/loss.
If only adjusted current balances are available, set source status to Unknown and withhold withdrawal projections until the original basis is confirmed.
Do not turn unknown amounts into confirmed zeros. - Enter actual executable capacity, rates, maturity, interest day and fees, then distinguish external cash repayment from approved partial-withdrawal funding.
Verify extension conditions if intended use exceeds maturity. - Compare a zero-return baseline with a loss assumption and review the separate collateral stress.
Arrange other funding for receipt or repayment shortfalls. - Save a TXT consultation sheet or print the results for the provider.
Recalculate after editing any amount or condition so the report reflects the current inputs.
External repayment resources are expected
If salary or a deposit maturity will repay temporary family funding, review each interest payment and the final principal requirement together.
Check whether a delay in that expected income would force an unapproved extension.
Pension assets are intended to fund repayment
First confirm collateral release, partial-withdrawal permission and net cash after withholding.
Test whether falling prices create a funding or collateral shortfall, and distinguish a planned approved withdrawal from automatic provider liquidation.
Frequently asked questions
Are earnings on non-credited principal tax-excluded too?
No.
Verified non-credited principal and earnings generated from that principal have different treatment.
The earnings belong to the same taxable pool as credited contributions.
Can I simply compare 16.5% with the loan rate?
Also consider gross funding required, days borrowed, fees, investment outcomes, repayment withdrawal tax and collateral shortages.
An annual borrowing rate and a one-time withdrawal tax percentage use different time bases.
Can I choose to sell only a tax-free source?
Statutory withdrawal order applies to account tax sources.
Selling a particular fund does not let you elect to withdraw only that fund’s non-credited principal.
Confirm actual settlement and withholding with the provider.
Should I include contributions made this year as tax-excluded?
This model excludes accounts with current-year contributions.
Deemed-credit rules in the next tax period can change sources at a future repayment date.
Obtain year-specific source treatment from the provider instead.
Should loan principal be added to financing cost?
Principal received at execution corresponds to principal repaid later.
Financing cost includes interest, fees and applicable repayment withdrawal tax; principal is separately shown as cash that must be prepared.
Does automatic sale at maturity remove the need to prepare cash?
Do not assume that it does.
Some products require cash repayment or specify full sale/redemption after non-payment.
Confirm partial-withdrawal approval, redemption timing, withholding and principal-settlement order with the provider.
Is the price-decline stress the same as the annual return?
No.
Annual return projects ending assets; the decline tests an immediate fall in recognized collateral.
An absence of modeled collateral shortfall does not guarantee compliance with actual maintenance conditions.
Which option wins when the comparison is withheld?
Resolve unverified sources, unavailable borrowing, unapproved extensions or withdrawals, cash shortages and collateral shortages first.
Do not choose an execution route from a fictional example; obtain actual quotes and evidence and recalculate.
Official sources and items to recheck
Sources were checked on 2026-11-13.
Income Tax Act MST280405 and Local Tax Act MST282559 use the editions effective 2026-07-01; Enforcement Decree MST290841 is effective 2026-10-01.
Recheck withholding truncation, actual product availability, rates, collateral terms, contribution-credit records, foreign-tax credits and subsequent amendments when executing a transaction.
- Enforcement Decree of the Income Tax Act, Article 40-3 — withdrawal order, verification timing, deemed credits and reverse loss allocation
- Income Tax Act, Article 129 and Local Tax Act, Article 103-13 — basic withholding and foreign-tax-credit scope
- National Tax Service pension-income withholding guidance — tax sources and ordinary non-pension withdrawals
- Shinhan Securities loan-service FAQ and Korea Investment & Securities loan explanation — institution-specific repayment and collateral terms to verify
Prepare tax-source evidence and repayment resources together
Record funding shortfalls, dated interest outflows, withdrawal tax and collateral stress from the results.
Ask the provider for original source book principal before losses and cumulative investment profit/loss, the effective verification date, executable borrowing and extension terms, and partial-withdrawal permission.
For pension payments after commencement, use the pension withdrawal-order and receipt-limit calculator; review ordinary termination tax with the pension-savings and IRP early-withdrawal tax calculator, or insurance borrowing with the insurance policy-loan calculator.
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