Update on T-Bill Taxable Equivalent Yield
Post viewed 807 times, 1 so far today
Yesterday, a reader, goldsheet (Thanks!), posted a comment on my T-Bill Taxable Equivalent Yield, saying that the EAPY formula in the post is actually for itemized deduction and he/she also provided a formula for EAPY for standard deduction.
Indeed, the formula I gave is only for the calculation of EAPY if you itemize, which I automatically assumed that everybody will. If you don't, the formula to get your EAPY is
EAPY = APY*(1 - Federal tax rate)/(1 - Federal tax rate - State tax rate)
As for me, with a 25% federal tax rate and 6.37% state tax rate, my EAPY is
EAPY = 0.05302*(1 - 0.25)/(1 - 0.25 - 0.0637) = 5.79%
I don't think I can get a rate from any bank that's close to 5.79%! Plus, since interests earned from banks are taxed at both the federal and state level, the rate you actually get will be lowered and the gap between interests from T-bill and banks will be even wider.
Featured Financial Products
- Get the most out of your money with these online banks that pay top interest rates: EverBank: 4.75% APY, Dollar Savings Direct: 4.00% APY, FNBO Direct: 3.25% APY, WTDirect: 3.31% APY.
- Feeling the pain at the pump? Find out how you can get up to 5% cash back with these gas rewards credit cards. It's the money you have to spend anyway. Why not get some back?
Related Articles You Don't Want To Miss
Trackbacks & Pingbacks
- Pingback by T-Bill Investment Rate: Is it APR or APY? And What Is Your Taxable Equivalent Yield? - The Sun’s Financial Diary - Accumulating wealth is like building The Great Wall, one brick at a time on November 19, 2006 @ 10:02 am
5 Comments
Share Your Thouhgts
Your opinion matters. Please use the form below to share your thoughts on Update on T-Bill Taxable Equivalent Yield with us.Recent Entries
- Free Inc or LLC Service from MyCorporation This Week
- Fidelity to Reopen Contrafund and Low–Priced Stock Fund
- You Can Now Link Your ShareBuilder Account to ING Direct
- November 2008 Score Card — Part I: Net Worth
- 10-Year Treasury Note Yield Reached All-Time Low - Chart of the Day
- Rate Updates: EverBank 4.00% Bonus Rate, Capital One 3.40% APY
- WTDirect Promotion: Get up to $250 Bonus When Opening a New Account
- TradeKing $50 Bonus Ends Tomorrow
- Regular Mortgage versus Reverse Mortgage: A Comparative Study
- Happy Thanksgiving!
- Why You Should Make Room for Charitable Giving in Your Budget
- Quarterly GDP Down 0.5% in Third Quarter - Chart of the Day
- Firstrade Black Friday Promotion: Get a FREE iPod Nano
- Get Your Free EASEUS Partition Manager Pro
- FDIC Problem Bank List Now Includes 171 Banks
- Safest Cars from Insurance Institute for Highway Safety
- American Express $20 Cashback for Shopping at Walmart
- Quicken Online New Features and Demo Video
- Update on DollarSavingsDirect Account
- Weekend Linkage - November 23, 2008
- Citi Closed My Dividend Platinum Select Card
- The Growing List of Failed Banks
- iShares 529 Plan: Save for College with ETFs
- Dow, The Near 6-Year Low
- Transfer A Brokerage Account: How Much Does It Cost?



Yup, as non-itemizers living in California (we’re renters and not homeowners), T-bills are certainly attractive. I still have to remind myself though that tax-effective yield is not the same thing as the “actual yield”. In other words, that ~6% effective rate is for comparison purposes only, and at the end of the year, I’m actually making less than that (and even more less if I’d chosen a taxable vehicle). An equivalent and more accurate comparison method would be to compare investment vehicles with all applicable taxes included, but it’s easier to do it the other way.
That was horrible grammar … “even more less”. Ugh. I meant that I’d be getting even less in return if I’d chosen an investment vehicle that was subject to state income taxes.
That’s ture. The equivalent yield is kind of a theoretical number because every week there will be a different rate and for every T-bill purchase, the rate is locked for four weeks. If the purchase is made every week, then there will be 54 rates through out the year, the calculation will be quite tedious.