Quick Answer

TBILLPRICE Function

Calculates the price of a Treasury bill per $100 face value.

✓ Excel✓ Google SheetsExcel All versions

Syntax

TBILLPRICE
(settlement, maturity, discount)

Parameters

ParameterDescriptionRequired
settlementDate the security is purchased.Required
maturityDate the security expires.Required
discountDiscount rate of the T-bill.Required

Basic Example

Price of a 6-month T-bill

=TBILLPRICE(DATE(2024,1,1), DATE(2024,7,1), 0.05)
Result$97.50

A 6-month T-bill with a 5% discount rate is priced at $97.50 per $100 face value.

Advanced Examples

Example 1: Short-term T-bill

Money market analysis

Price of a 3-month T-bill

=TBILLPRICE(DATE(2024,1,1), DATE(2024,4,1), 0.05)
Result: Price per $100 face value
Shorter maturities have smaller discounts.

How TBILLPRICE Works

TBILLPRICE calculates the price using the formula 100 * (1 - discount * days to maturity / 360). Treasury bills use a 360-day year for pricing.

1
Enter settlement
Type the settlement
2
Enter maturity
Type the maturity
3
Enter discount
Type the discount
4
Calculate
Press Enter to get the result.

Important Notes & Limitations

  • Maturity must be within one year of settlement.

  • Discount is entered as a decimal.

  • Uses actual/360 day count.

Common Errors & Fixes

#NUM! errorMaturity is more than one year after settlement or discount is invalid.

Fix: Verify dates are within one year and discount is valid.

#VALUE! errorDates are not recognized.

Fix: Use DATE function or valid date serial numbers.

Download Practice File

Practice TBILLPRICE with Real Data

Download a sample CSV file with pre-populated data and practice exercises for the TBILLPRICE function. Works in both Excel and Google Sheets.

Works in Google SheetsCompatible with ExcelIncludes exercises

File format: CSV (comma-separated values) - opens in Excel, Google Sheets, and all spreadsheet apps

Frequently Asked Questions

What is the difference between TBILLPRICE and PRICEDISC?
TBILLPRICE is specifically for Treasury bills with a 360-day year. PRICEDISC is more general and can use different bases.
When is TBILLPRICE used?
It is used for pricing US Treasury bills.