Carryover:
Definition, Elements, Types & Comparison

Carryover is an accounting and tax method that allows unused deductions, credits, balances, or entitlements from one period to be transferred and applied to a subsequent period. This mechanism ensures that taxpayers, employees, and organizations do not lose the value of unused benefits or tax attributes when they cannot be fully utilized within a single reporting period.

In taxation, carryover applies when deductions and credits of a taxable year that are either not used in that year or could not be considered entirely in that year are then applied to reduce the tax liability of later years. Common items that may be carried over include net operating losses, charitable contributions, investment tax credits, and capital losses from investments.

In human resources and leave management, carryover refers to the ability to transfer unused leave from one leave period to the next, allowing employees to retain their earned but unused leave rather than losing it at the end of the leave year.

Related terms: carryforward, carryback, rollover, carryover basis

Carryover in leave management involves 6 key elements that define how the policy operates:

• Policy Limits: Define the maximum amount of leave that can be carried over to the next period. An employee may be allowed to carry over up to 10 days of unused leave, ensuring flexibility while preventing accumulation of excessive leave balances that become financial burdens.
• Eligibility: Determine who can benefit from the carryover policy based on employment status, length of service, or other criteria. Only full-time employees may be eligible for carryover benefits.
• Leave Year Definition: Specify the period used to calculate and carry over leave, such as calendar year, fiscal year, or rolling 12-month period. Unused leave from the 2024 calendar year can be carried over to 2025.
• Cap on Accruals: Set a maximum limit on the amount of leave an employee can accumulate. If an employee has a cap of 30 days and carries over 10 days, they can only accrue 20 additional days in the new year.
• Use-it-or-lose-it Policies: Require employees to use their carried-over leave within a certain timeframe, or it will be forfeited. Carried-over leave must be used within the first six months of the new year.
• Carryover Tracking: Involve systems and processes to monitor and manage carryover balances. Leave management tools automatically track carryover balances and notify employees of their remaining leave.

These elements ensure compliance with policy limits and provide transparency for both employees and employers while managing the financial implications of unused leave.

Tax carryovers apply to 5 main types of tax attributes that cannot be fully utilized in a single tax year:

• Net Operating Losses (NOLs): Business losses that exceed income in a given year can be carried forward to offset future taxable income, reducing tax liability in profitable years.
• Capital Losses: Investment losses that exceed capital gains can be carried forward to offset future capital gains, with annual limits on how much can offset ordinary income.
• Charitable Contributions: Donations exceeding the annual deduction limit based on adjusted gross income can be carried forward for up to 5 years in most cases.
• Investment Tax Credits: Credits earned for qualified investments that exceed current tax liability can be carried forward to reduce taxes in future years.
• Foreign Tax Credits: Credits for taxes paid to foreign governments that cannot be fully used in the current year due to limitations can be carried back 1 year and forward up to 10 years.

The precise rules and limits of carryovers vary based on the specific deduction, credit, or other calculation being carried over, with each type having distinct timeframes and restrictions established by tax authorities.

Carryover is the general term for moving a tax attribute from one tax year to another tax year, while carryforward is the specific term for when that attribute moves to a future year. Carryover tends to imply carrying forward, but it need not exclusively mean that direction.

Carryforward specifically refers to applying unused amounts to future periods. When capital losses or tax credits exceed what can be used in the current year, they are carried forward to reduce tax liability in subsequent years.

The broader carryover concept also includes carryback, which is when the attribute is moved to a prior year by amending previous tax returns. Net operating losses, for example, can sometimes be carried back to prior years to generate refunds of taxes already paid.

In practical usage, carryover and carryforward are often used interchangeably in contexts where only forward movement is possible, such as with employee leave balances or most individual tax situations where carryback options are limited or unavailable.

Carryover provides 4 critical benefits for organizations managing both financial and human resource obligations:

• Employee Flexibility: Carryover policies provide employees with flexibility in managing their time off, allowing them to plan leave according to personal needs, emergencies, and life events rather than forcing immediate use of accrued benefits.
• Compliance and Management: Implementing well-defined carryover policies ensures compliance with labor and leave laws and effective management of leave liabilities, providing clear guidelines that reduce confusion and potential conflicts.
• Financial Planning: Understanding and managing the financial impact of carryover helps companies with accurate budgeting and financial planning. Accrued but unused leave represents a financial liability that must be accounted for in financial statements.
• Work-Life Balance: Encouraging the use of carried-over leave supports better work-life balance. Regular breaks help employees recharge, reducing stress and burnout while promoting productivity.

Proper carryover management prevents the accumulation of excessive leave balances that can become financial burdens while ensuring employees receive the full value of their earned benefits.

Carryover basis is a tax concept used to transfer a previous owner's original investment amount, plus improvements, to a subsequent owner for the purpose of calculating gain or loss upon a sale or exchange of an asset. This method preserves the original cost basis rather than resetting it to current market value at the time of transfer.

This basis calculation typically applies to gifts and certain inherited property, where the recipient assumes the donor's original basis rather than receiving a stepped-up basis at fair market value. When the recipient eventually sells the asset, capital gains are calculated using this carried-over basis, which can result in larger taxable gains than if the basis had been reset.

Carryover basis differs from stepped-up basis, which applies to most inherited property at death, where the basis is adjusted to the asset's fair market value at the date of death, potentially eliminating unrealized capital gains.

In grant management, carryover occurs when the balance of unused funds at the end of a budget period is transferred into the following budget period. Some sponsors allow automatic carryover of funds from year to year, while others require prior approval before funds can be moved forward.

Carryover requests that require prior approval must be coordinated through the Office of Sponsored Programs (OSP) and typically require 4 key pieces of information: the amount of funds to be carried forward, an explanation of the unobligated balance, a detailed budget showing how carryover funds will be spent, and scientific justification explaining how the carryover will impact or benefit the award.

No expenditures from the current budget year can be encumbered, and the final invoice for the current budget year must be submitted in advance or at the time of the carryover request. This ensures accurate accounting and compliance with sponsor requirements for fund utilization and reporting.

Carryover is often compared to 3 related concepts in financial and human resource management:

Carryover vs. Rollover

Carryover transfers unused amounts or entitlements from one period to the next within the same system or account structure, maintaining continuity of the same benefit type. Rollover involves moving funds between different accounts or programs, often with specific rules about timing and tax treatment, such as rolling over a 401(k) to an IRA within 60 days to avoid penalties.

Carryover vs. Carryback

Carryover generally moves tax attributes, leave balances, or other benefits forward to future periods, allowing taxpayers or employees to utilize them when circumstances are more favorable. Carryback moves tax attributes retrospectively to prior years by amending previous returns, potentially generating immediate refunds of taxes already paid, though carryback options are more limited and not available for all tax attributes.

Carryover vs. Accrual

Accrual is the ongoing process of earning entitlements based on time worked or other qualifying factors, with employees or taxpayers building up benefits gradually according to established rates. Carryover occurs after accrual, when earned but unused benefits are transferred to a new period rather than being forfeited, ensuring the value of accrued benefits is preserved even when immediate utilization is not possible or practical.