Internal Revenue Bulletin:  2009-47 

November 23, 2009 

Rev. Rul. 2009-36


Table of Contents

2009 base period T-bill rate. The “base period T-bill rate” for the period ending September 30, 2009, is published as required by section 995(f) of the Code.

Section 995(f)(1) of the Internal Revenue Code provides that a shareholder of a DISC shall pay interest each taxable year in an amount equal to the product of the shareholder’s DISC-related deferred tax liability for the year and the “base period T-bill rate.” Under section 995(f)(4), the base period T-bill rate is the annual rate of interest determined by the Secretary to be equivalent to the average of the 1-year constant maturity Treasury yields, as published by the Board of Governors of the Federal Reserve System, for the 1-year period ending on September 30 of the calendar year ending with (or of the most recent calendar year ending before) the close of the taxable year of the shareholder. The base period T-bill rate for the period ending September 30, 2009, is 0.630 percent.

Pursuant to section 6222 of the Code, interest must be compounded daily. The table below provides factors for compounding the base period T-bill rate daily for any number of days in the shareholder’s taxable year (including a 52-53 week accounting period) for the 2009 base period T-bill rate. To compute the amount of the interest charge for the shareholder’s taxable year, multiply the amount of the shareholder’s DISC-related deferred tax liability (as defined in section 995(f)(2)) for that year by the base period T-bill rate factor corresponding to the number of days in the shareholder’s taxable year for which the interest charge is being computed. Generally, one would use the factor for 365 days. One would use a different factor only if the shareholder’s taxable year for which the interest charge being determined is a short taxable year, if the shareholder uses the 52-53 week taxable year, or if the shareholder’s taxable year is a leap year.

For the base period T-bill rates for the periods ending in prior years, see Rev. Rul. 2008-51, 2008-2 C.B. 1171; Rev. Rul. 2007-64, 2007-2 C.B. 953; Rev. Rul. 2006-54, 2006-2 C.B. 834; Rev. Rul. 2005-70, 2005-2 C.B. 919; Rev. Rul. 2004-99, 2004-2 C.B. 720; Rev. Rul. 2003-2, 2003-1 C.B. 251; Rev. Rul. 2002-68, 2002-2 C.B. 808; and Rev. Rul. 2001-56, 2001-2 C.B. 500.

DRAFTING INFORMATION

The principal author of this revenue ruling is Teresa B. Hughes of the Office of Associate Chief Counsel (International). For further information regarding this revenue ruling, contact Teresa B. Hughes at (202) 622-3850 (not a toll-free call).

2009 ANNUAL RATE, COMPOUNDED DAILY
0.630 PERCENT
DAYS FACTOR
1 .000017260
2 .000034521
3 .000051782
4 .000069043
5 .000086304
   
6 .000103566
7 .000120828
8 .000138091
9 .000155353
10 .000172616
   
11 .000189879
12 .000207143
13 .000224407
14 .000241671
15 .000258935
   
16 .000276200
17 .000293465
18 .000310731
19 .000327996
20 .000345262
   
21 .000362528
22 .000379795
23 .000397062
24 .000414329
25 .000431596
26 .000448864
27 .000466132
28 .000483400
29 .000500669
30 .000517938
   
31 .000535207
32 .000552477
33 .000569746
34 .000587016
35 .000604287
   
36 .000621558
37 .000638829
38 .000656100
39 .000673371
40 .000690643
   
41 .000707916
42 .000725188
43 .000742461
44 .000759734
45 .000777007
   
46 .000794281
47 .000811555
48 .000828829
49 .000846104
50 .000863379
   
51 .000880654
52 .000897929
53 .000915205
54 .000932481
55 .000949758
   
56 .000967034
57 .000984311
58 .001001589
59 .001018866
60 .001036144
   
61 .001053422
62 .001070701
63 .001087979
64 .001105258
65 .001122538
   
66 .001139817
67 .001157097
68 .001174378
69 .001191658
70 .001208939
   
71 .001226220
72 .001243502
73 .001260783
74 .001278065
75 .001295348
   
76 .001312630
77 .001329913
78 .001347196
79 .001364480
80 .001381764
   
81 .001399048
82 .001416332
83 .001433617
84 .001450902
85 .001468187
   
86 .001485473
87 .001502759
88 .001520045
89 .001537332
90 .001554618
   
91 .001571906
92 .001589193
93 .001606481
94 .001623769
95 .001641057
   
96 .001658346
97 .001675634
98 .001692924
99 .001710213
100 .001727503
   
101 .001744793
102 .001762083
103 .001779374
104 .001796665
105 .001813956
   
106 .001831248
107 .001848540
108 .001865832
109 .001883124
110 .001900417
   
111 .001917710
112 .001935004
113 .001952297
114 .001969591
115 .001986886
   
116 .002004180
117 .002021475
118 .002038770
119 .002056066
120 .002073361
   
121 .002090658
122 .002107954
123 .002125251
124 .002142547
125 .002159845
   
126 .002177142
127 .002194440
128 .002211738
129 .002229037
130 .002246335
   
131 .002263635
132 .002280934
133 .002298234
134 .002315533
135 .002332834
   
136 .002350134
137 .002367435
138 .002384736
139 .002402038
140 .002419339
   
141 .002436641
142 .002453944
143 .002471246
144 .002488549
145 .002505853
   
146 .002523156
147 .002540460
148 .002557764
149 .002575068
150 .002592373
   
151 .002609678
152 .002626983
153 .002644289
154 .002661595
155 .002678901
   
156 .002696208
157 .002713515
158 .002730822
159 .002748129
160 .002765437
   
161 .002782745
162 .002800053
163 .002817362
164 .002834671
165 .002851980
   
166 .002869289
167 .002886599
168 .002903909
169 .002921220
170 .002938530
   
171 .002955841
172 .002973153
173 .002990464
174 .003007776
175 .003025088
   
176 .003042401
177 .003059714
178 .003077027
179 .003094340
180 .003111654
   
181 .003128968
182 .003146282
183 .003163597
184 .003180911
185 .003198227
   
186 .003215542
187 .003232858
188 .003250174
189 .003267490
190 .003284807
   
191 .003302124
192 .003319441
193 .003336759
194 .003354077
195 .003371395
   
196 .003388713
197 .003406032
198 .003423351
199 .003440670
200 .003457990
   
201 .003475310
202 .003492630
203 .003509951
204 .003527272
205 .003544593
   
206 .003561914
207 .003579236
208 .003596558
209 .003613881
210 .003631203
   
211 .003648526
212 .003665849
213 .003683173
214 .003700497
215 .003717821
   
216 .003735145
217 .003752470
218 .003769795
219 .003787120
220 .003804446
   
221 .003821772
222 .003839098
223 .003856425
224 .003873752
225 .003891079
   
226 .003908406
227 .003925734
228 .003943062
229 .003960390
230 .003977719
   
231 .003995048
232 .004012377
233 .004029707
234 .004047036
235 .004064367
   
236 .004081697
237 .004099028
238 .004116359
239 .004133690
240 .004151022
   
241 .004168354
242 .004185686
243 .004203018
244 .004220351
245 .004237684
   
246 .004255018
247 .004272351
248 .004289685
249 .004307020
250 .004324354
   
251 .004341689
252 .004359025
253 .004376360
254 .004393696
255 .004411032
   
256 .004428368
257 .004445705
258 .004463042
259 .004480379
260 .004497717
   
261 .004515055
262 .004532393
263 .004549732
264 .004567070
265 .004584410
   
266 .004601749
267 .004619089
268 .004636429
269 .004653769
270 .004671110
   
271 .004688450
272 .004705792
273 .004723133
274 .004740475
275 .004757817
   
276 .004775159
277 .004792502
278 .004809845
279 .004827188
280 .004844532
   
281 .004861876
282 .004879220
283 .004896565
284 .004913909
285 .004931254
   
286 .004948600
287 .004965946
288 .004983292
289 .005000638
290 .005017984
   
291 .005035331
292 .005052678
293 .005070026
294 .005087374
295 .005104722
   
296 .005122070
297 .005139419
298 .005156768
299 .005174117
300 .005191467
   
301 .005208817
302 .005226167
303 .005243517
304 .005260868
305 .005278219
   
306 .005295570
307 .005312922
308 .005330274
309 .005347626
310 .005364979
   
311 .005382332
312 .005399685
313 .005417039
314 .005434392
315 .005451746
   
316 .005469101
317 .005486455
318 .005503810
319 .005521166
320 .005538521
   
321 .005555877
322 .005573233
323 .005590590
324 .005607946
325 .005625304
   
326 .005642661
327 .005660019
328 .005677377
329 .005694735
330 .005712093
   
331 .005729452
332 .005746811
333 .005764171
334 .005781531
335 .005798891
   
336 .005816251
337 .005833612
338 .005850973
339 .005868334
340 .005885696
   
341 .005903057
342 .005920420
343 .005937782
344 .005955145
345 .005972508
   
346 .005989871
347 .006007235
348 .006024599
349 .006041963
350 .006059328
   
351 .006076693
352 .006094058
353 .006111423
354 .006128789
355 .006146155
   
356 .006163521
357 .006180888
358 .006198255
359 .006215622
360 .006232990
   
361 .006250358
362 .006267726
363 .006285094
364 .006302463
365 .006319832
   
366 .006337201
367 .006354571
368 .006371941
369 .006389311
370 .006406682
   
371 .006424053

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