Part I. Rulings and Decisions Under the Internal Revenue Code of 1986
Internal Revenue Bulletin 2013-49 · 2026-10-03 edition · updated 2026-10-04 · United States
Section 832.—Insurance Company Taxable Income
26 CFR 1.832–4: Gross Income. The salvage discount factors and payment patterns are set forth for 2013. These factors must be used to compute discounted estimated salvage recoverable for purposes of section 832 of the Code. See Rev. Proc. 2013–37, page 612.
Section 846.—Discounted Unpaid Losses Defined
26 CFR 1.846–1: Application of discount factors. The composite loss discount factors for Reinsurance (Nonproportional Assumed Property) published in Rev. Proc. 2013–36, page 602.
26 CFR 1.846–1: Application of discount factors. The salvage discount factors and payment patterns are set forth for 2013. These factors must be used to compute discounted estimated salvage recoverable for purposes of section 832 of the Code. See Rev. Proc. 2013–37, page 612.
Section 995.—Taxation of DISC Income to Shareholders
2013 Base Period T-Bill Rate . The “base period T-bill rate” for the period ending September 30, 2013, is published as required by section 995(f) of the Code.
Rev. Rul. 2013–24
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, 2013, is 0.140 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 2013 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. 2012–22, 2012–48 I.R.B. 565; Rev. Rul. 2011–30, 2011–49 I.R.B. 826; Rev. Rul. 2010–28, 2010–49 I.R.B. 804; Rev. Rul. 2009–36, 2009–47 I.R.B. 650; and Rev. Rul. 2008–51, 2008–2 C.B. 1171.
DRAFTING INFORMATION
The principal author of this revenue ruling is Teresa Burridge Hughes of the Office of Associate Chief Counsel (International). For further information regarding this revenue ruling, contact Ms. Hughes at (202) 317-6936 (not a toll-free call).
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
1 .000003836
2 .000007671
3 .000011507
4 .000015343
5 .000019178
6 .000023014
7 .000026850
8 .000030685
9 .000034521
10 .000038357
11 .000042193
12 .000046028
13 .000049864
14 .000053700
15 .000057536
16 .000061372
17 .000065207
18 .000069043
19 .000072879
20 .000076715
21 .000080551
22 .000084387
23 .000088223
24 .000092059
25 .000095895
26 .000099731
27 .000103567
28 .000107403
29 .000111239
30 .000115075
31 .000118911
32 .000122747
33 .000126583
34 .000130419
35 .000134255
December 2, 2013 594 Bulletin No. 2013–49
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
36 .000138091
37 .000141928
38 .000145764
39 .000149600
40 .000153436
41 .000157272
42 .000161109
43 .000164945
44 .000168781
45 .000172617
46 .000176454
47 .000180290
48 .000184126
49 .000187963
50 .000191799
51 .000195635
52 .000199472
53 .000203308
54 .000207144
55 .000210981
56 .000214817
57 .000218654
58 .000222490
59 .000226327
60 .000230163
61 .000234000
62 .000237836
63 .000241673
64 .000245509
65 .000249346
66 .000253182
67 .000257019
68 .000260855
69 .000264692
70 .000268529
71 .000272365
72 .000276202
73 .000280039
74 .000283875
75 .000287712
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
76 .000291549
77 .000295386
78 .000299222
79 .000303059
80 .000306896
81 .000310733
82 .000314569
83 .000318406
84 .000322243
85 .000326080
86 .000329917
87 .000333754
88 .000337591
89 .000341427
90 .000345264
91 .000349101
92 .000352938
93 .000356775
94 .000360612
95 .000364449
96 .000368286
97 .000372123
98 .000375960
99 .000379797
100 .000383634
101 .000387472
102 .000391309
103 .000395146
104 .000398983
105 .000402820
106 .000406657
107 .000410494
108 .000414332
109 .000418169
110 .000422006
111 .000425843
112 .000429681
113 .000433518
114 .000437355
115 .000441192
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
116 .000445030
117 .000448867
118 .000452704
119 .000456542
120 .000460379
121 .000464216
122 .000468054
123 .000471891
124 .000475729
125 .000479566
126 .000483404
127 .000487241
128 .000491079
129 .000494916
130 .000498754
131 .000502591
132 .000506429
133 .000510266
134 .000514104
135 .000517941
136 .000521779
137 .000525617
138 .000529454
139 .000533292
140 .000537129
141 .000540967
142 .000544805
143 .000548643
144 .000552480
145 .000556318
146 .000560156
147 .000563994
148 .000567831
149 .000571669
150 .000575507
151 .000579345
152 .000583183
153 .000587020
154 .000590858
155 .000594696
Bulletin No. 2013–49 595 December 2, 2013
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
156 .000598534
157 .000602372
158 .000606210
159 .000610048
160 .000613886
161 .000617724
162 .000621562
163 .000625400
164 .000629238
165 .000633076
166 .000636914
167 .000640752
168 .000644590
169 .000648428
170 .000652266
171 .000656104
172 .000659942
173 .000663781
174 .000667619
175 .000671457
176 .000675295
177 .000679133
178 .000682972
179 .000686810
180 .000690648
181 .000694486
182 .000698325
183 .000702163
184 .000706001
185 .000709839
186 .000713678
187 .000717516
188 .000721355
189 .000725193
190 .000729031
191 .000732870
192 .000736708
193 .000740547
194 .000744385
195 .000748224
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
196 .000752062
197 .000755901
198 .000759739
199 .000763578
200 .000767416
201 .000771255
202 .000775093
203 .000778932
204 .000782770
205 .000786609
206 .000790448
207 .000794286
208 .000798125
209 .000801964
210 .000805802
211 .000809641
212 .000813480
213 .000817319
214 .000821157
215 .000824996
216 .000828835
217 .000832674
218 .000836512
219 .000840351
220 .000844190
221 .000848029
222 .000851868
223 .000855707
224 .000859546
225 .000863385
226 .000867223
227 .000871062
228 .000874901
229 .000878740
230 .000882579
231 .000886418
232 .000890257
233 .000894096
234 .000897935
235 .000901774
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
236 .000905614
237 .000909453
238 .000913292
239 .000917131
240 .000920970
241 .000924809
242 .000928648
243 .000932488
244 .000936327
245 .000940166
246 .000944005
247 .000947844
248 .000951684
249 .000955523
250 .000959362
251 .000963201
252 .000967041
253 .000970880
254 .000974719
255 .000978559
256 .000982398
257 .000986238
258 .000990077
259 .000993916
260 .000997756
261 .001001595
262 .001005435
263 .001009274
264 .001013114
265 .001016953
266 .001020793
267 .001024632
268 .001028472
269 .001032311
270 .001036151
271 .001039990
272 .001043830
273 .001047670
274 .001051509
275 .001055349
December 2, 2013 596 Bulletin No. 2013–49
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
276 .001059189
277 .001063028
278 .001066868
279 .001070708
280 .001074547
281 .001078387
282 .001082227
283 .001086067
284 .001089906
285 .001093746
286 .001097586
287 .001101426
288 .001105266
289 .001109106
290 .001112945
291 .001116785
292 .001120625
293 .001124465
294 .001128305
295 .001132145
296 .001135985
297 .001139825
298 .001143665
299 .001147505
300 .001151345
301 .001155185
302 .001159025
303 .001162865
304 .001166705
305 .001170545
306 .001174385
307 .001178226
308 .001182066
309 .001185906
310 .001189746
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
311 .001193586
312 .001197426
313 .001201267
314 .001205107
315 .001208947
316 .001212787
317 .001216628
318 .001220468
319 .001224308
320 .001228148
321 .001231989
322 .001235829
323 .001239669
324 .001243510
325 .001247350
326 .001251191
327 .001255031
328 .001258871
329 .001262712
330 .001266552
331 .001270393
332 .001274233
333 .001278074
334 .001281914
335 .001285755
336 .001289595
337 .001293436
338 .001297277
339 .001301117
340 .001304958
341 .001308798
342 .001312639
343 .001316480
344 .001320320
345 .001324161
ANNUAL RATE, COMPOUNDED DAILY
0.140 PERCENT
DAYS FACTOR
346 .001328002
347 .001331842
348 .001335683
349 .001339524
350 .001343365
351 .001347205
352 .001351046
353 .001354887
354 .001358728
355 .001362569
356 .001366410
357 .001370250
358 .001374091
359 .001377932
360 .001381773
361 .001385614
362 .001389455
363 .001393296
364 .001397137
365 .001400978
366 .001404819
367 .001408660
368 .001412501
369 .001416342
370 .001420183
371 .001424024
Bulletin No. 2013–49 597 December 2, 2013
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