What Is the Army Leave Accrual Calculator?
This calculator applies to the United States Armed Forces. Active-duty service members earn paid leave at a rate of 2.5 days per month, which works out to 30 days per year. This tool estimates how much leave you will accrue over a period of service, adds it to your starting balance, subtracts any leave you have used, and applies the standard 60-day carryover cap used at the end of the fiscal year. Figures are estimates for planning only; your official Leave and Earnings Statement (LES) is the authoritative source.
How to Use It
Enter the number of months served during the period you want to project, your starting leave balance in days, and the number of leave days used in that period. The calculator multiplies months by 2.5 to find accrued leave, then computes your projected balance. If the result exceeds 60 days, it is capped to reflect the maximum that can normally be carried over.
The Formula Explained
The accrual is simply \(\text{months} \times 2.5\). Your raw balance is \(\text{starting} + \text{accrued} - \text{used}\). Because ordinary leave above 60 days is generally forfeited at fiscal year-end (absent special leave accrual authorization), the displayed balance is limited with \(\min(60, \text{balance})\).
$$\text{Balance} = \min\!\left(60,\; \max\!\left(0,\; \text{Starting} + 2.5 \times \text{Months} - \text{Used}\right)\right)$$
$$\begin{gathered} \text{Balance} = \min\!\left(60,\; \max\!\left(0,\; B\right)\right) \\[1.5em] \text{where}\quad \left\{ \begin{aligned} B &= \text{Starting (days)} + A - \text{Used (days)} \\ A &= 2.5 \times \text{Months Served} \end{aligned} \right. \end{gathered}$$
Worked Example
Suppose you served 12 months, started with 5 days, and used 10 days. Accrued = \(12 \times 2.5 = \) 30 days. Raw balance = \(5 + 30 - 10 = \) 25 days. Since 25 is below the cap, your projected balance is 25 days.
$$\text{Balance} = \min\!\left(60,\; \max\!\left(0,\; 5 + 2.5 \times 12 - 10\right)\right) = 25 \text{ days}$$
Leave Balance Across Common Scenarios
US Army soldiers accrue leave at a rate of 2.5 days per month, which works out to 30 days per year. The projected balance combines your starting balance with newly accrued leave, subtracts leave you have used, and then applies the 60-day carryover cap. The table below walks through several realistic situations using the formula \(\text{Balance} = \min(60,\; \max(0,\; \text{Starting} + 2.5 \times \text{Months} - \text{Used}))\).
| Scenario | Months Served | Starting Balance | Leave Used | Raw Balance | Capped Projected Balance |
|---|---|---|---|---|---|
| New soldier (first year, no leave taken) | 12 | 0 | 0 | 30.0 | 30.0 |
| PCS year (moderate leave used) | 12 | 20 | 25 | 25.0 | 25.0 |
| Deployment (little leave used) | 12 | 35 | 5 | 60.0 | 60.0 |
| Balance exceeding 60-day cap | 12 | 45 | 0 | 75.0 | 60.0 |
| Heavy leave user (balance drawn down) | 6 | 10 | 30 | -5.0 | 0.0 |
Note how the deployment and over-cap rows both land at exactly 60 even though their raw balances differ — the cap is the binding limit. The heavy-leave-user row shows the lower bound: a negative raw balance is floored at 0, since you cannot carry a negative leave balance in this estimate.
Key Terms Explained
- Accrued Leave
- Leave you earn over time. Active-duty soldiers accrue 2.5 days of leave for each full month of service, totaling 30 days per year.
- Starting Balance
- The number of leave days you already have on the books at the beginning of the period you are projecting, typically taken from your most recent Leave and Earnings Statement.
- Leave Used
- Days of leave you have taken (or plan to take) during the period, which reduce your running balance.
- Use-or-Lose Leave
- Leave above the carryover ceiling that you must take before the end of the fiscal year or forfeit. Soldiers are encouraged to plan ahead so this leave is not lost.
- 60-Day Carryover Cap
- The maximum ordinary leave balance you may carry forward into the next fiscal year — 60 days. Any balance above 60 at fiscal year-end is normally forfeited unless protected.
- Special Leave Accrual (SLA)
- An authorization that lets eligible soldiers carry more than 60 days for a limited time, generally after serving in a hostile-fire/combat zone or under other qualifying conditions when they could not use their leave.
- Fiscal Year
- The federal government's accounting year, running October 1 through September 30. The leave carryover cap is applied at fiscal year-end (September 30).
- Leave and Earnings Statement (LES)
- The official monthly document showing your pay, deductions, and leave information, including current leave balance, leave earned, and leave used. The LES is the authoritative source for your actual balance.
What Your Projected Balance Means
The projected balance is a planning estimate of where your leave will stand after accrual and any leave you use. How you read it depends mainly on how close it sits to the 60-day cap.
- At or near 60 days: A result that reaches or hovers just below 60 signals use-or-lose risk. Because the cap is applied at the end of the fiscal year, leave earned beyond 60 has nowhere to go and is generally not retained.
- Above 60 in raw terms: Any raw balance over 60 is shown as forfeited leave once capped. Without an approved Special Leave Accrual (SLA) authorization, leave above the cap is lost at fiscal year-end and is not paid out or carried forward as ordinary leave.
- Comfortably below 60: A balance well under the cap indicates room to keep accruing without immediate forfeiture risk, though this can change as months pass and the fiscal year-end approaches.
Remember that this figure is an estimate built from the numbers you enter. It assumes a steady 2.5-day monthly accrual and does not account for SLA protection, mid-period adjustments, separation, or sell-back. Your Leave and Earnings Statement (LES) is the authoritative record of your actual leave balance; use this projection for planning and verify the details against your LES.
This is general information about how Army leave accrual works, not personnel or financial advice. Confirm your specific situation with your unit's S-1 or finance office.
FAQ
How much leave do I earn per year? At 2.5 days per month, you accrue 30 days of leave per year of active service.
What is the 60-day cap? At the end of the fiscal year, leave above 60 days is normally lost unless you qualify for Special Leave Accrual. This calculator caps the projected balance at 60.
Does this include terminal or sell-back leave? No. This is a basic accrual estimate. Consult your finance office for sell-back, terminal leave, or special accrual situations.
