JERRY E. SMITH, Circuit Judge:
Beverly Thomas sued the Texas Department of Criminal Justice (“TDCJ”), claiming it had denied her a promotion and housing because of her sex, race, and complaints to the Equal Opportunity Employment Commission (“EEOC”). In the first trial, the jury found that TDCJ had violated title VII by refusing to grant Thomas housing because of her sex and race and refusing to promote her in retaliation for her EEOC complaints. We affirmed the jury’s decision on the promotion claim but held that Thomas had not properly preserved her allegations of race discrimina[364]*364tion on the housing claim. Thomas v. TDCJ (“Thomas I”), 220 F.3d 389 (5th Cir.2000). The verdict did not distinguish between sex and race discrimination on the housing claim. The jury also had awarded damages as a lump sum. Those features of the verdict compelled a new trial on the housing claim and damages. The second jury found for TDCJ on the housing claim and awarded $30,000 for past emotional distress and $100,000 for future emotional distress based on the promotion claim.
In this appeal, we find no error in the jury instructions. We do, however, conclude that the award for future emotional distress was excessive and that the district court erred when calculating prejudgment interest. We direct a remittitur or new trial on those damages, and we remand for the district court to reconsider its award of attorneys’ fees.
I.
In 1979, Thomas began working for TDCJ at its Gainesville Unit. In 1985, TDCJ promoted her to sergeant. In 1992, she transferred to the Estelle Unit. In July 1995, TDCJ promoted her to lieutenant and assigned her to work with high security prisoners. After her promotion, Thomas requested housing, because the TDCJ benefits policy permits lieutenants to live rent free in state-owned housing.
Thomas requested a hearing from Warden Fred Becker to discuss housing. Becker said that he would like to give her a house, but all of the houses were being renovated. Thomas wrote a letter asking to be placed on a waiting list. In February 1996, Fred. Figueroa became Warden of the Estelle Unit. Thomas met with Figueroa and requested housing. Figueroa informed her that because she was single and had no children, her chances of receiving housing, were slim to none. In June 1996, Thomas filed a complaint .with the EEOC alleging that TDCJ had denied her housing on the basis of sex.
In November 1996, Thomas applied for promotion to captain. In December 1996 and January 1997, TDCJ denied her the promotion; three white males filled the available captain positions. In April 1997, Thomas filed another EEOC charge complaining that TDCJ had denied her the promotion because of discrimination on the basis of race, sex, and retaliation.
II.
In February 1997, Thomas sued TDCJ, alleging discrimination in the denial of housing and of the promotion. The district court permitted her to amend the complaint to add allegations of racial discrimination to her charge of sex discrimination regarding the housing denial. In February 1998, TDCJ placed Thomas in a house at the Estelle Unit.
The jury found, that TDCJ had unlawfully denied Thomas housing because of her sex and race and had retaliated against her by failing to promote her to captain. The jury awarded $107,000 in compensatory damages. The district court entered judgment awarding compensatory damages, back pay, and attorneys’ fees. The court also issued entered an injunction that forbade TDCJ from further discrimination against Thomas, ordered TDCJ to transfer her from the Estelle Unit, and ordered appropriate housing on reassignment. Finally, the court prohibited TDCJ from implementing housing policies that were contrary to anti-retaliation provisions of state and federal law or insensitive to sex discrimination.
TDCJ appealed. In Thomas I, 220 F.3d at 392-94, we affirmed the denial of TDCJ’s motion for judgment as a matter of law (“j.m.l.”) or a new trial on the promotion claim. We also ruled, however, [365]*365that the district court had abused its discretion by permitting Thomas to amend her pretrial order to add a race discrimination claim to her original sex discrimination claim for the housing delay. Id. at 395. Further, the jury instructions on race discrimination for the housing claim constituted an abuse of discretion, because the jury should not have been able to consider race discrimination. Id.
We reversed the district court only for permitting the pretrial amendment and improperly formulating jury instructions on the housing claim. Id. at 396. This also required a new trial on compensatory damages, because the jury had not divided the damage award between the housing and promotion claims. On remand, the court had to consider the merits of the housing claim and the damages owed under all the claims. Id.
At the beginning of the second trial, the court announced that “the jury instructions are simply going to be finding as to housing and finding as to damages and finding as to other damages.” The court instructed that a previous jury had found that TDCJ had failed to promote Thomas and had retaliated against her.
The second jury found that TDCJ had not refused Thomas housing because of her sex. The jury then considered damages for “TDCJ’s failure to promote Ms. Thomas to captain, and retaliation against her.” Thomas received $30,000 for past emotional damage and $100,000 for future emotional distress.
The court entered judgment ordering the TDCJ to promote Thomas before January 31, 2001, and to pay compensatory damages of $130,000, back pay, pre- and postjudgment interest, attorneys’ fees, and costs. The TDCJ filed a renewed motion for j.m.l. and new trial, which were denied.
III.
TDCJ argues that the jury instruction impermissibly led the jury to award damages for the failure to promote and retaliation as independent events. TDCJ argues that Thomas I compelled the court to inform the jury that TDCJ had retaliated only by failing to promote Thomas to captain. TDCJ misinterprets Thomas I, in which we decided that TDCJ had retaliated both by failing to promote and by refusing to transfer Thomas. The jury instructions were proper.
A.
We review an error in jury instructions for abuse of discretion. A challenge to jury instructions “must demonstrate that the charge as a whole creates substantial and ineradicable doubt whether the jury has been properly guided in its deliberations.” Deines v. Tex. Dep’t of Protective & Regulatory Servs., 164 F.3d 277, 279 (5th Cir.1999) (quoting Mooney v. Aramco Servs. Co., 54 F.3d 1207, 1216 (5th Cir.1995)). A single inaccurate, ambiguous, or incomplete clause does not dictate reversal if the instructions as a whole properly express the law. Vicksburg Furniture Mfg., Ltd. v. Aetna Cas. & Surety Co., 625 F.2d 1167, 1169 (5th Cir. Unit A 1980). Even if the challenger proves the instructions misguided the jury, we reverse only if the erroneous instruction affected the outcome of the case. Deines, 164 F.3d at 279.
B.
The court repeatedly instructed the second jury to award compensatory damages for failure to promote and retaliation.1 TDCJ correctly argues that a jury [366]*366can award compensatory damages only for adverse employment actions. Mattern v. Eastman Kodak Co., 104 F.3d 702, 708-09 (5th Cir.1997). TDCJ also correctly states that if TDCJ only failed to promote Thomas, then Thomas should not also recover for retaliatory acts that did not rise to the level of adverse employment actions. Tompkins v. Cyr, 202 F.3d 770, 785-86 (5th Cir.2000).
TDCJ, however, reads Thomas I incorrectly. In Thomas I, 220 F.3d at 394 & n. 2, we addressed which actions constituted adverse employment actions severe enough to support a retaliation claim. We distinguished between the evidence of TDCJ’s retaliatory motive and the employer’s acts of retaliation. Id. Giving Thomas a house in deplorable condition, twice disciplining her on flimsy charges, and shouting at her for filing grievances provided evidence of TDCJ’s motive. Id.
Thomas I also identified more than one retaliatory adverse employment action. The panel repeatedly used the conjunction “and” to describe TDCJ’s separate actions in failing to promote and retaliating against Thomas.2 We identified two, separate adverse employment actions — the “failure to promote Thomas” and the “refusal to transfer her to other positions.”3
After TDCJ denied Thomas the promotion to captain, she repeatedly applied for transfers outside the Estelle unit, where her race, sex, and history of complaints would not be an issue. Thomas applied for a program administrator post and an administrative technician position. The TDCJ denied all of these transfer applications, and, in Thomas I, the panel interpreted the verdict as finding that the “refusal to transfer” was retaliatory. Given our holding in Thomas I, the district court correctly instructed the jury to consider both the failure to promote and TDCJ’s other retaliatory action.
C.
The district court also refused to give any instruction concerning front pay. This made sense, because the court did not permit the jury to consider the issue of front pay. The only instruction the court gave on pay was that the court, not the jury, would decide back pay.
TDCJ maintains that the court should have given a companion instruction expressly excluding front pay. TDCJ argues that the jury inevitably inferred that it [367]*367should include front pay in compensatory damages, despite the absence of any instruction.
The district court does not have an obligation to refute every possible, impermissible inference from the jury instructions. TDCJ does not cite a single case holding that an instruction on back pay requires an instruction on front pay. Reversing on this basis would make it impossible for the court to instruct a jury: The court would have to preempt every possible impermissible inference.
Instead, we review judgments to ensure that jurors receive proper instructions on the acceptable methods and bases of recovery. The district court gave proper instructions on the bases for compensatory damages.4
IV.
TDCJ requests that we reverse the denial of its motions for j.m.l. and new trial on future emotional distress damages. The jury’s $30,000 award for past emotional distress fits within the range of damages that we have established, and TDCJ does not appeal that award. Thomas, however, failed to prove that the TDCJ’s unlawful actions caused $100,000 in future emotional distress damages. We reverse, because our precedent does not support a $100,000 award based on such insubstantial injuries. On remand, Thomas may choose between accepting a remittitur to $75,000 of future emotional distress damages or a new trial.
The parties disagree over whether our review of the denial of j.m.l. should be de novo or for plain error. TDCJ’s motion for j.m.l. at-the close of all evidence did not include an attack on the evidence’s sufficiency to prove emotional damages. TDCJ did include such an argument in its Fed.R.Civ.P. 50(b) post-judgment motion, however, and Thomas did not argue waiver.
A party who does not raise the waiver bar when opposing a rule 50(b) motion may not raise that bar on appeal.5 TDCJ’s motion for j.m.l. is properly asserted on appeal, and we apply the de novo standard. Deffenbaugh-Williams, 188 F.3d at 285.
When reviewing the denial of j.m.l., we must review the sufficiency of the evidence and consider whether reasonable and fair-minded people could reach the same conclusion. Polanco v. City of Austin, Tex., 78 F.3d 968, 974 (5th Cir.1996). We “should review all of the evidence in the record ... [but] must draw all reasonable inferences in favor of the nonmoving party, and [] may not make credibility determinations or weigh evidence.” Reeves v. Sanderson Plumbing Prods., Inc., 530 U.S. 133, 150, 120 S.Ct. 2097, 147 L.Ed.2d 105 (2000) (citations omitted). [368]*368“Credibility determinations, the weighing of the evidence, and the drawing of the legitimate inferences from the facts are jury functions, not those of a judge.” Id. at 150-51, 120 S.Ct. 2097 (quotation and citations omitted).
We apply a more stringent standard — abuse of discretion — when determining whether to grant a new trial. Whitehead v. Food Max, Inc., 163 F.3d 265, 269, 270 n. 2 (5th Cir.1998); Baker v. Dillon, 389 F.2d 57, 58 (5th Cir.1968). “A trial court should not grant a new trial on evidentiary grounds unless the verdict is against the great weight of the evidence.” Pryor v. Trane Co., 138 F.3d 1024, 1026 (5th Cir.1998) (citation and quotation omitted). We must affirm denial of a new trial unless the movant makes a “clear showing” of an “ ‘absolute absence of evidence to support the jury’s verdict,’ thus indicating that the district court abused its discretion in refusing to find the jury’s verdict ‘contrary to the great weight of the evidence.’ ” Whitehead, 163 F.3d at 269 (citations omitted).
TDCJ did not request a remittitur in either the district court or its brief on appeal. We do, however, have the discretion to convert a motion for new trial into a remittitur.6 We review the denial of remittitur for abuse of discretion. Eiland v. Westinghouse Elec. Corp., 58 F.3d 176, 183 (5th Cir.1995). We order a remittitur only when “left with the perception that the verdict is clearly excessive.” Id.
TDCJ’s request for j.m.l. or a new trial boils down to challenging the sufficiency of Thomas’s evidence. A plaintiff must present evidence of an emotional injury’s character. and severity to recover greater than nominal, damages.7 TDCJ argues that Thomas did not present evidence sufficient to support the $100,000 award for future emotional harm.
We have shown great deference to jury damage awards ratified by the district court. Caldarera v. E. Airlines, Inc., 705 F.2d 778, 784 (5th Cir.1983). Courts have focused on two necessary elements for the plaintiff to recover emotional distress damages. Giles, 245 F.3d at 488. First, the plaintiff must provide specific evidence of the nature and extent of the harm. Id. Second, he must make more than vague allegations to support his claim. Id. We prefer corroboration and expert testimony. Id.
With those two criteria in mind, we review the awards for emotional distress in similar cases. Dixon v. Int’l Harvester Co., 754 F.2d 573, 589 (5th Cir.1989). We limit our comparison to cases in the “relevant jurisdiction,” which is the Fifth Circuit. Douglass v. Delta Air Lines, Inc., 897 F.2d 1336, 1339 (5th Cir.1990).
[369]*369Out of deference to the jury’s decision, the “maximum recovery rule” compels us to remit damages only to the maximum amount the jury could have awarded. Giles, 245 F.3d at 488-89. As an extension of the “maximum recovery rule,” we usually apply a multiplier, or percentage enhancement, to past similar awards. If the verdict falls within the range established by previous awards and the enhancement, we will uphold the decision.8
We have approved six-figure emotional distress awards in five employment discrimination and § 1983 cases. In Forsyth v. City of Dallas, Tex., 91 F.3d 769, 775 (5th Cir.1996), we upheld an award of $100,000 to an officer transferred in violation of her First Amendment rights. We premised the award on the plaintiffs testimony describing “depression, weight loss, intestinal troubles, and marital problems.” Id. The plaintiff also testified that she had consulted a psychologist. Id.
In Rizzo v. Children’s World Learning Ctrs., Inc., 173 F.3d 254, 262 (5th Cir.), vacated, 187 F.3d 680 (5th Cir.1999), aff'd on other grounds, 213 F.3d 209 (5th Cir.) (en banc), cert. denied, 531 U.S. 958, 121 S.Ct. 382, 148 L.Ed.2d 294 (2000), we approved a $100,000 award under the Americans with Disabilities Act for past and future mental anguish. The award was 550 times the size of the lost wages award, but the panel did not discuss the specifics of Rizzo’s emotional damages. Id.
In Williams v. Trader Publ’g Co., 218 F.3d 481, 486 (5th Cir.2000), we upheld a compensatory damage award of $100,000 for emotional distress based on the plaintiffs descriptions of “severe emotional distress,” “sleep loss,” “severe loss of weight,” and “beginning smoking.” We affirmed the award and noted that the testimony of the plaintiff alone can support emotional damages. Id.
In Giles, 245 F.3d at 488-89, we remitted an emotional damage award to $100,000 where a coworker testified as to the plaintiffs sleeping trouble, headaches, marital difficulties, and loss of prestige and social connections.9 The coworker testified that the plain tiff “appeared despondent, depressed, down, and absolutely utterly discouraged about not being able to go back to work.” Id. at 488. Finally, in Salinas, 286 F.3d at 832, we remitted a jury award from $300,000 to $100,000, where a customs service agent won a title VII claim for retaliation.10 The plaintiff and his wife had testified that the retaliation caused him to suffer from paranoia, take excessive sick leave, and visit physicians more than seventy times. Id. at 832. [370]*370The emotional toll had a significant impact on his relationship with his wife and son. Id.11
In three employment discrimination cases, we have remitted emotional distress awards to less than six figures. In Flowers v. S. Reg’l Physician Servs., Inc., 247 F.3d 229, 236-37 (5th Cir.2001), we vacated a $100,000 award for the emotional impact of disability-based harassment. We emphasized that the plaintiffs testimony was uncorroborated, and every physical and psychological complaint occurred after the discharge. Id. at 239 & n. 8. In Vadie, 218 F.3d at 375-76, we remitted a title VII award of $300,000 to $10,000. We emphasized that the plaintiffs uncorroborated testimony that he was “destroyed,” “totally ruined,” “totally ill,” and “took many doctors, many pills” was insufficient to support the verdict. In Patterson v. P.H.P. Healthcare Corp., 90 F.3d 927, 940 (5th Cir.1996), we remitted $40,000 and $150,000 awards to nominal damages where a hospital had discriminated against a nurse and medical technician. One plaintiffs uncorroborated testimony described feelings of frustration, low self-esteem, anger, and paranoia, id. at 939; the other testified that her discharge emotionally scarred her and resulted in unemployment, id. at 940.
Thomas testified to severe past emotional distress. She wept while describing the emotional impact of the missed promotion. She said that “it hurt, it hurt,” because “[i]t took everything I had just to sit there and watch somebody take a job that I had worked for all my life.” After the promotion denial and throughout the retaliatory period, Thomas was tearful, felt like a failure, felt isolated from her coworkers, and felt helpless to alter her circumstances. She explained that she could not sleep and suffered from nausea. Her depression deepened, and she, began dwelling on death. Her treating physician prescribed an antidepressant.
Other witnesses corroborated the severity of Thomas’s past emotional distress. Elroy Thomas, her older brother, testified that Thomas became “moody,” “depressed,” “standoffish,” and isolated during her employment at the Estelle Unit. Kerney Hamblen, a co-worker and friend, averred that Thomas went from being “extremely outgoing and full of life” to “depressed or in a bad mood” “at times.” JoAnn Palmer, Thomas’s older sister, explained that Thomas became withdrawn, prone to breaking out in tears, and depressed. The jury concluded that this evidence of past emotional harm warranted $30,000 in damages.
By the time of the second trial, however, TDCJ had transferred Thomas to another unit. She testified that she currently enjoys her job. Although she has given up [371]*371hope of future promotions, she still derives great pleasure from helping others at work. She admitted that she has received favorable evaluations; she has been named employee of the month. She has continued to pursue her degree at Sam Houston University, where she originally began taking classes to further her career ambitions.
The evidence pointed to some ongoing and future emotional distress, but nothing as severe as what Thomas suffered during the retaliatory period. She described continued anger and fears that the lawsuit will bar her from future promotion. She continues to suffer from a heart condition, everyday fatigue, and stress. Elroy Thomas testified that Thomas remains “shook up, worried, depressed, [and] scared”; his testimony, however, plainly describes her emotional distress as less severe than what she experienced while employed at the Estelle Unit. Hamblen noted that the housing dispute and promotion denials had changed Thomas’s mood, but she admitted that she did not see Thomas much anymore. Her testimony about Thomas’s contemporaneous emotional reactions cannot provide much of a basis for estimating future emotional harm.
Finally, Palmer stated that Thomas still suffers from mood “swings” when “she is very melancholy” and “just really not her[self]”; Palmer described these moods as off and on; she also admits that Thomas’s contemporaneous emotional distress was much more severe. Thomas presented enough evidence to justify instructing the jury on future emotional harm, and her evidence supported an award. The question whether that evidence supported a $100,000 award is an entirely different matter, however.
At a superficial level, past cases and the maximum recovery rule might point toward affirming the jury’s award. Overall, Thomas presented convincing and substantial evidence of emotional damages. Thomas presented substantial evidence of acute, past mental anguish, and the jury chose to award her $30,000.
The jury, however, awarded over three times that amount for future emotional harms, despite substantially weaker evidence. First, the witnesses testified that Thomas’s emotional difficulties have lessened substantially since her transfer. She enjoys her current job, and her current supervisors have commended her performance. Second, Thomas did not provide evidence tightly linking the denial of a promotion and future emotional harm. As one example, the witnesses tended to discuss the collective emotional impact of the promotion denials, transfer refusals, and housing delay. The jury, however, determined that the TDCJ acted lawfully when it delayed indefinitely Thomas’s housing.
The jury should not have included the impact of the housing denial when considering the emotional impact. The high damage award suggests that it ignored this distinction. As another example, Thomas testified about a heart condition that bothers her to this day. But she never even stated that she believes that TDCJ’s actions had lasting effects on her cardiac health; she certainly does not present any medical evidence connecting her past job-related stress to her current physical condition.
On this evidence, a reasonable jury could not have concluded that Thomas’s future emotional distress will be over three times worse than the emotional harm she has already suffered. At most, the jury properly could have awarded only [372]*372$50,000.12 The maximum recovery rule requires us to add 50%, so we remit future emotional distress to $75,000. Thomas may elect between accepting that amount or another trial on damages.
V.
TDCJ argues that the district court made three errors when calculating prejudgment interest. First, TDCJ claims the court mistakenly computed prejudgment interest from January 1996 rather than from January 1997. Second, TDCJ argues that courts should never award prejudgment interest on emotional damages. Third, TDCJ avers that courts should not award prejudgment interest on future damages. We review prejudgment interest for an abuse of discretion. Sellers v. Delgado Community College, 839 F.2d 1132, 1140 (5th Cir.1988). We reverse on the first and third grounds only.
District courts generally should calculate interest on back pay and past damages based on the date of the adverse employment action. Gloria v. Valley Grain Prods., Inc., 72 F.3d 497, 499 (5th Cir.1996) (describing general rule but refusing to reverse for denying prejudgment interest). The district court awarded 6% prejudgment interest from January 1996 forward. The TDCJ first denied Thomas the promotion in December 1996, and TDCJ argues that she should have received prejudgment interest only from January 1, 1997, when she would have received her first pay check as captain. Thomas agrees that prejudgment interest should have run from January 1, 1997. We reverse and remand for the district court to recalculate prejudgment interest from that date.
Prejudgment interest should apply to all past injuries, including past emotional injuries. Courts should award prejudgment interest whenever a certain sum is involved.13 Refusing to award prejudgment interest ignores the time value of money and fails to make the plaintiff whole. Batson, 782 F.2d at 1316.
TDCJ argues only that Thomas’s underlying claims for emotional damage lack merit. This is puzzling, because TDCJ conceded that the jury properly awarded Thomas $30,000 for past emotional harms. This judicial admission estops TDCJ from now denying the validity of this award for purposes of calculating prejudgment interest. TDCJ does not present a single argument for denying interest accrued on a meritorious claim. Because the jury found that the Thomas suffered past emotional injuries, the district court was compelled to award prejudgment interest on those past injuries..
We have, however, refused to award prejudgment interest on harms that have yet to occur. This makes good sense, because the present value of the plaintiffs future financial harm is less than either a present or past harm. We have applied this rule consistently to awards for front [373]*373pay and future emotional harms in the context of federal admiralty and maritime law.14
In Williamson v. Handy Button Mach. Co., 817 F.2d 1290 (7th Cir.1987), Judge Easterbrook explained the critical role of discounting, present value, and interest in determining damages accurately. Federal law requires courts to add prejudgment interest to backpay awards under 42 U.S.C. § 1981. Id. at 1297. Judge East-erbrook explained, however, that “interest is not available on lost future wages and pensions,” because “the time value of money is already taken into account when these are discounted to present value.” Id.
Courts must award prejudgment interest only for past harms. Today we apply that rule to future emotional harms awarded under title VII. The district court improperly awarded prejudgment interest on future harms. On remand, the court should not add prejudgment interest to either the $75,000 in future emotional harms or any damages for future emotional harms awarded by a new jury.
VI.
Because we vacate the damages for emotional distress, we also vacate and remand the attorneys’ fees award; the plaintiffs level of success can critically influence the proper amount of fees.15 The judgment is AFFIRMED IN PART, REVERSED IN PART, and REMANDED for further proceedings consistent with this opinion.